Post on 13-Apr-2017
BIO-DATA
Name Dr. Soundar Divakar
Department & Fermentation Technology and Bio-EngineeringInstitution Central Food Technological Research Institute Mysore- 570013,
India.
E-Mail Address divakar@ gmail.com divakar643@yahoo.co.in
Academic Qualifications and Professional Career:----------------------------------------------------------------------------------------------------------------
Degree University Period Subject----------------------------------------------------------------------------------------------------------------
B. Sc. University of Madras 1 971-1974 Chemistry
M.Sc. University of Madras 1974-1976 Chemistry
Ph.D. Australian National 1978-1982 ChemistryUniversity, Canberra
Research & M/S Reichhold Chemicals 1976-1978 PolymerDevelopment Ind. Ltd., Madras ChemistryChemist
CSIRPool Molecular Biophysics 1983-1987 NMR StudiesOfficer Unit, Indian Institute of biomolecules
of Science, Bangalore
Scientist Central Food Technological 1987- NMR studies ofResearch Institute biomolecules,
Cyclodextrin Chemistry and Lipase catalysis
----------------------------------------------------------------------------------------------------------------
Awards : CFTRI BEST SCIENTIST IN GROUP IV AWARD FOR THE PERIOD 1998-2004 (Awarded in 2004)
1
Fellowships of National Academies: FELLOW-ASSOCIATION OF FOOD SCIENTISTS AND TECHNOLOGISTS (INDIA) FOR 2002 (Conferred in 2003). Research Areas
Between October 1976 - August 1978 1 have worked as a Research and Development chemist at Ms.
Reichhold Chemicals (Ind.) Ltd. on the research and development of following polymers.
a) Alkyd resinsb) Unsaturated polyestersc) Phenol-formaldehyde resins (resoles and novolaks)d) Urea-formaldehyde resins, ande) Epoxy resins
NMR Studies of Biological molecules:
I have long been associated with nuclear magnetic resonance spectroscopic investigations of a
large number of biological systems since my PhD work in 1978. During the course of these
investigations multinuclear - 1H, 13C, 31P, 15N, 27Al, 23Na, 39K,17O, 19F, 35Cl NMR studies of biological
systems investigated include biological molecules with varying degrees of complexities. Conformational
aspects, structure-function correlation and interactions between biomolecules were some of the problems
which were investigated by me. Active site of ribonuclease A was explored with respect to the role of
lysine 41(an active site residue) in the catalytic activity of the enzyme. Detection of polyamines in
belladonna mottle virus and its role in stabilising the virus assembly was investigated by NMR.
Interaction of cupric isonicotinohydrazide (isoniazid) with calf-thymus DNA was studied in relation to
its ability to cleave DNA. Conformation of an antibiotic ionophore A23187 in polar and non-polar
solvents was studied to understand its role in transferring divalent metal ions across the biological
membranes. Structure of curcumin-BF2 complex was explored to stabilise curcumin. Carbon and
phosphorus metabolism, secondary metabolite production, intracellular pH, and permeabilisation of
intact cells by detergents were investigated with reference to intact cell systems of Thermomyces
lanuginosus, Rhodotorula gracilis, Kluyveromyces fragilis and Saccharomyces cerevisiae. Unusual
biphasic melting behaviour of Rhodotorula gracilis DNA was studied by CD and UV measurements.
Crystallinity in natural polysaccharides by solid-state 13C NMR was also investigated. The above
mentioned studies have so far resulted in 16 publications in National and International Journals which
were also citated by other researchers.
2
Cyclodextrin Chemistry:
I have been exploring for the last fifteen years (since 1987) various aspects of inclusion
complex formation by ß- cyclodextrin. Structures of several food additive inclusion complexes with ß –
cyclodextrin like aspartame, linoleic and arachidonic acids, substituted phenols, naringin and
cholesterol were investigated by NMR (through one and two dimensional techniques). Orientation of
the above mentioned guest molecules inside ß-cyclodextrin cavity was investigated with respect to the
selectivities exhibited by the inclusion complexes in chemical reactions on the exposed or buried regions
of these guest molecules to produce food additives of commercial importance used in foods. They
include mainly flavour compounds. Enzyme mimicking abilities of ß-cyclodextrin were also explored.
Regio, stereo and chemoselective organic reactions were carried out to prepare menthols from
menthone, thymol and pulegone through hydrogenation and other reduction reactions. Inclusion of
cholesterol inside ß-cyclodextrin cavity was made use of to develop a process to prepare low cholesterol
egg and egg powder. Similar property of ß-cyclodextrin was made use to decaffeinate coffee. Work on
preparation of stereoregular polymers by inclusion polymerisation have also yielded stereoregular
polymers (polyacrylonitrile, polystyrene and poly acyrylonitrile-styrene copolymer) with desired film-
forming properties. ß-Cyclodextrin as a phase-transfer catalyst was investigated in few reactions.
Oxidative potentiality of Cu(II) - ß-cyclodextrin was investigated in few selective oxidative reactions
involving cyclic secondary alcohols like menthol, borneol, isoborneol and cholesterol and other
compounds like eugenol. These investigations have resulted in about 40 publications, 8 Indian Patents
and 1 process. Some of these publications have received good number of citations from other
researchers as well.
Enzyme Catalysed Transformations
Since 1996 lipases and amyloglucosidase catalysed esterification reactions in non-polar solvents
and non-solvent conditions were also investigated by me to produce food additives like flavour and
sufactant esters. Synthetic strategies at both shake flask and large scale levels have been developed.
Several novel methods have been attempted to overcome problems like water activity, microaqueous
pH, alcohol inhibition and hydrolysis. Several basic research aspects of lipase catalysis were
investigated like catalysis by Ping Pong Bi Bi mechanism and enzyme inhibition by the alcohol.
Thermal stability of the lipase in non-polar solvents was investigated. Mathematical modelling of lipase
catalysed reactions by employing extensive Response Surface Methodology and Artifical Neural
3
Network studies were carried out. Optimisation studies to achieve maximum conversions using larger
substrate concentrations with lesser enzyme have been carried out to arrive at conditions for large scale
conversions. A novel experimental set-up was arrived at for carrying out lipase mediated reactions at
higher concentration levels. All the estersand glucosides prepared possess food applications. Low
molecular weight bio-degradable poly-esters were also prepared using lipases in non-polar solvents.
These studies have resulted in more than 80 publications and 13 patents so far.
The food additive preparations investigated so far are,
1. Esters of -terpinol, lactic acid, cresols and anthranilic acid, with low and high molecular weight organic acids which are used as flavour and fragrance molecules.
2. Bio-degradable polyesters like poly-lactic acids, polycaprolactone. Poly-p-hydroxy benzoate, poly-p-benzamide and poly adipates.
3. Amino acid esters of sugars – L-alanyl, L-valyl, L-leucyl, L-isoleucyl, L-prolyl, L-phenylalanyl, L-tryptophanyl and L-histidyl esters of D-glucose, D-galactose, D-mannose, D-arabinose, D-ribose, maltose, lactose, sucrose, D-mannitol and D-sorbitol.
4. Glycoside preparations Studied: alkyl , n-octyl-, guaiacyl, eugenyl, curcumin, vanillyl, N-vanillylnonamide, riboflavinyl, thiamine, pyridoxine, retinyl, ergocalciferol, cholecalciferol, α-tocopherol,L-Dopa, dopamine, serotinonyl, epinephryl glycosides.
Patents and Publications :
Research papers/Books/Reviews/General articles published- 154
Posters - 56
S.No.
Year Title of patent
1 1995
AN IMPROVED PROCESS FOR THE PREPARATION OF MENTHONE AND MENTHOLS. - 1357/DEL/95. No.191669/ S.Divakar and R. Ravichandran
2 1997
AN IMPROVED PROCESS FOR THE PREPARATION OF I- PHENETHYL ALCOHOL AND 2-PHENETHYL ALCOHOL FROM STYRENE OXIDE - 789/DEL/97. No.186805/ S.Divakar and R. Ravichandran
4
3 1998
AN IMPROVED PROCESS FOR THE PREPARATION OF STEREOREGULAR POLYMER USING CLATHRATES - 2149/DEL/98 P. Ravi and S.Divakar
4 1998
AN IMPROVED PROCESS FOR THE PREPARATION OFSTERICALLYCONTROLLED STYRENE-ACRYLONITRILE COPOLYMER USINGCLATHRATES -2380/DEL/98 P.Ravi and S.Divakar
5 1998
A PROCESS FOR THE PREPARATION OF 2-HYDROXY 4-METHOXYBENZALDEHYDE FROM RESORCINOL 743/DEL/98. No.188336/ S.Divakar, H. H. Pattekhan and Jacob George
6 1998
AN IMPROVED PROCESS FOR THE PREPARATON OF AMYL ESTERS FROMAMYL ALCOHOL - 2152/DEL/98. No. 189038/1998. S. Harikrishna, S.Divakar,S.G. Prafulla and N. G. Karanth
7 1998
AN IMPROVED PROCESS FOR THE SIMULTANEOUS PREPARATION OF MENTHONE AND MENTHOLS FROM THYMOL – 2153/DEL/98.No 190583/ P.Ravi and S.Divakar
8 1998
AN IMPROVED ENZYMATIC PROCESS FOR THE PREPARATION OF FATTY ACID HYDROXYACIDESTER 1978/DEL/98. 187313/ K.R. Kiran, N.G. Karanthand S.Divakar
9 1998
AN ENZYMATIC PROCESS FOR THE PREPARATION OF TERPINYL ESTERS2381/DEL/98 Pramila Rao, N.G.Karanth and S.Divakar
10 1998
AN ENZYMATIC PROCESS FOR THE PREPARATION OF LOW MOLECULARWEIGHT ESTERS OF AROMATIC ALCOHOLS. 3696/DEL/98 S.G.Prafulla,S.Divakar and N. G. Karanth
11 1999
AN IMPROVED PROCESS FOR THE PREPARATION OF ESTERS OF ORGANIC ACIDS AND ALCOHOLS 1243/DEL/99 No. 191078/ S. Divakar, K.R.Kiran, S.Harikrishna and N. G. Karanth
12 1999
AN ENZYMATIC PROCESS FOR THE PREPARATION OF PHENOLIC ESTERSOF ORGANIC ACIDS. 1244/DEL/99. No. 191078/99. N. G. Karanth andS.Divakar
13 2000
AN IMPROVED ENZYMATIC PROCESS FOR THE PREPARATION OFPOLYLACTIC ACID 257/DEL/00 No.192154/2000. K. R. Kiran, N. G.Karanth and S.Divakar
14 2001
AN IMPROVED PROCESS FOR THE PREPARATION OF 4-t BUTYLCYCLOHEXYL ACETATE 422/DEL/01 H. H. PATTEKHAN and S.Divakar
15 2000
AN IMPROVED ENZYMATIC METHOD FOR THE PREPARATION OF 4-t- BUTYLCYCLOHEXYLACETATE 1205/DEL/00 Pramila Rao andS.Divakar
16 1998
USE OF DECALEPIS HAMILTONII WIGHTAND ARN.(ASCLEPIADACEAE)ROOT POWDER AND ITS EXTRACTS AS A BIOPESTICIDE AND AFLAVOURANT-1301/DEL/98 John Periera, Jacob George, G.A. Ravishankar,Uday Shankar and S.Divakar
17 2000
A PROCESS FOR THE PRODUCTION OF A LIPOXYGENASE INHIBITOR.301/DEL/00 A.P. Sattur, K.C. Shekar Rao, S.Divakar, A. G. AppuRao and N. G. Karanth
18 2000
A PROCESS FOR THE PRODUCTION OF A FERMENTED EXTRACTCONTAINING A SERINE ESTERASE / PROTEASE INHIBITOR A.P. Sattur, K.C.Shekar Rao, S.Divakar and N. G. Karanth NF/352/00
5
19 2001
A PROCESS FOR THE PRODUCTION OF A HUMAN PLATELETAGGREGATION INHIBITOR 216/DEL/2001 A.P. Sattur, K.C. Shekar Rao,S.Divakar, N. G. Karanth, J. Suneeta, T. P. Krishnakanth and S. Vishwanath
20 2001
A PROCESS FOR THE PRODUCTION OF AN ACETYLCHOLINESTERASE INHIBITOR. A.P. Sattur, K.C.Shekar Rao, S.Divakar and N. G. Karanth 219/DEL/2001
21 2001
A PROCESS FOR THE PRODUCTION AN PREPARATION OF A NOVEL ACETYLCHOLINESTERASE INHIBITOR. T. Sivanandappa, A.P.Sattur, Shreen,S. Divakar and N. G. Karanth .
22 2001
A PROCESS FOR THE PREPARATION OF A BIOACTIVE COMPOUND FROMTHE CULTURES OF ASPERGILLUS NIGER. NF 349/2001. A.P. Sattur,K.C. Sekhar Rao, S. Divakar, N. G.Karanth , T.R. Shyamala and A.G. Appu Rao.
23 2001
ALDOSE REDUCTASE INHIBITOR AND A PROCESS FOR THE PREPARATIONTHEREOF (Appln No. 10/024,574 dt 21st Dec 2001). A.P. Sattur, K.C. Sekhar Rao,S. Divakar, K. Naveen Babu, N. G. Karanth and T.R. Shyamala
24 1998
BIOACTIVE COMPOUND AND ITS ISOLATION AND USE FORLIPOXYGENASE INHIBITOR AND AS FREE RADICAL SCAVANGING AGENTPCT/IN/PA-98 A.P. Sattur, K.C. Sekhar Rao, S. Divakar, N. G. Karanth, T.R.Shyamala and A.G. Appu Rao.
25 2001
A PROCESS FOR THE PRODUCTION OF A HUMAN PLATELETAGGREGATION INHIBITOR WITH SOYBEAN LIPOXYGENASE INHIBITION(PCT PATENT) NF 23/2001AP Sattur, KC Sekhar Rao, S Divakar, NG Karanth,WJ Suneetha, TP Krishnakanth, AG Appu Rao and S Visvanatha
26 2002
BIOACTIVE COMPOUND AND ITS ISOLATION AND METHOD OFTREATMENT FOR LIPOXYGENASE INHIBITION AND AS FREE RADICALSCAVENGING AGENT (APPL. NO. 10/107807 DT 28 MARCH 2002) USPRODUCT PATENTS AP Sattur, KC Sekhar Rao, S Divakar, NG Karanth, T. R.Shyamala and A.G. Appu Rao
27 2002
A PROCESS FOR THE EXTRACTION OF AN ANTIOXIDANT PRINCIPLEFROM POMEGRANATE FRUIT WASTE VIZ. PITH AND CARPELLARYMEMBRANE. Kulkarni, S. Divakar, S.M. Aradhya. 2002.NF/417/02.
28 2004
AN IMPROVED ENZYMATIC PROCESS FOR THE PREPARATION OF AMINOACYL ESTERS OFMONOSACCHARIDES. NF492/03. 498/DEL/2004. PCT/03/00466. K. Lohith, G.R. Vijaya kumar, B. Manohar and S.Divakar
29 2005
AN ENZYMATIC METHOD FOR THE PREPARATION OFCURCUMINGLYCOSIDES. NF – 60/2005, 756/DEL/2005. G.R.Vijayakumar, B. Manohar andS. Divakar
30 2004
A SINGLE STEP PROCESS FOR THE EXTRACTION OF PLATELETAGGREGATION INHIBITORY PRINCIPLE FROM INDIAN HOGPLUM FRUIT (SPONDIAS MANGIFERA WILD). 2004. S.M.Aradhya, M. SivaPrasad, S. Divakar, T.P. Krishnakantha and W.J. Suneetha.
31 2004
A PROCESS FOR THE EXTRACTION OF ANTIBACTERIAL PRINCIPLE FROMMANGO GINGER (CURCUMA AMADA ROXB). 2004. S.M. Aradhya,R.S.Policegoudra and S. Divakar.
32 2004
A PROCESS FOR POLARITY BASED FRACTIONATION CUM EXTRACTIONOF MICROBIAL PIGMENTS. (2004). G. Vijayalakshmi, S. Divakar, N.Kumaresan and V. Vanajakshi
33 2005
A PROCESS FOR THE DEGRADATION OF NITROPHENOL ISOMERS BY ASINGLE BACTERIAL CULTURE SARCINA MAXIMA (2005) Shabana basheer,M. C Varadaraj, A. A. M. Kunhi and S. Divakar NF/301/2005.
6
PUBLICATIONS
BOOKS PUBLISHED1 201
3ENZYMATIC TRANSFORMATION
SOUNDAR DIVAKARSpringer, India
2 2014
NAADI ASTROLOGY:PREDICTIV
E RULES. SOUNDAR DIVAKAR
VL Media Solutions, New Delhi
REVIEWS1 199
4Applications of -cyclodextrin iOrganic Syntheses. Maheswaran,M.M. and Divakar, S.
Journal of Scientific and Industrial Research, 53, 924-932
2 1998
Nuclear Magnetic Resonance Spectroscopy in Food Applications - A Critical Appraisal. Divakar, S.
Journal of Food Science and Technology, 35(6) 469 - 481 (Impact Factor = 0.2).
3 2007
A Chapter in a book on Industrial Enzymes. (2007) J.Polaina and A.P. MacCabe (Eds)
Springer Publication, 283-300
GENERAL ARTICLES1 199
9Predicting Disaster Periods. S.Divakar.
The Astrological Magazine, 88, 218-222
2 2007
Can Modern Science Understand Astrology. S.Divakar.
The Astrological Magazine, 96, 426-427
3 2009
The Science of Astrology The Astrological Magazine, 21-22, June.
4 2009
Astrology: A Key to Grand Unification Vikram Divakar and Soundar Divakar
The Astrological Journal, 51(6), 60.
5 2015
Life on Exo-Planets-An astrological View
Modern Astrology, 6(11), 430-433
PAPERS
7
1 1981
NMR studies using paramagneticbroadening probes in
biochemistry.Bradbury, J.H., Collins, J.G.,Divakar S., Galloway, G., Foster,J.R., Hammer, B. and Ramesh.
Bulletin of Magnetic Resonance, 2, 9-11
2 1984
Interactions of somesporeconstituents: An NMR study. Divakar, S.
Indian Journal of Biochemistryand Biophysics, 21, 166-173(Impact Factor = 0.6)
3 1985
IH NMR studies of active site of ribonuclease A. Divakar, S.
Indian Journal of Biochemistry and Biophysics, 22, 85-92. (Impact Factor = 0.6).
4 1987
Studies on the interactions of cupric-isonicotinohydrazide with DNA. Divakar, S., Vasudevachari, M. B., Antony, A. and Easwaran.
Biochemistry, 26, 3781-3785. (Impact Factor = 3.4).
5 1987
Conformational studies of A23187 with mono, di and trivalent metal ions by circular dichroism spectroscopy. Divakar, S. and Easwaran, K.R.K.
Biophysical Chemistry, 27, 139-147(Impact Factor = 4.627).
6 1987
Stability of belladonna mottle virus particles- The chemistry of polyamines and calcium. Savithri, H.S., Suryanarayana, S., Munshi, Divakar, S. and Murthy, M.R.N.
Journal of General Virology, 68, 1533-1537. (Impact Factor = 3.1).
7 1987
31P NMR study of Thermomyceslanuginosus. Rajasekaran, A.K.
andDivakar,S.
Indian Journal of Biochemistry and Biophysics, 24, 255-256. (Impact Factor = 0.6).
8 1988
Carbon-13 NMR spectroscopicstudy of a thermophilic fungusThermomyces lanuginosusRajasekaran, A.K. and Divakar, S.
Current Science, 57(5), 235-237(Impact Factor = 0.8).
9 1988
A rapid method for monitoring intracellular lipid production using 1H NMR spectroscopy. Sattur, A.P., Karanth, N. G. and Divakar, S.
Biotechnology Techniques, 2, 73-76
10 1988
Regulation of phosphate metabolism during intracellular lipid production in Rhodotorula gracilis. Sattur, A.P., Karanth, N.G. and Divakar, S.
Biotechnology Letters, 10 (10), 745-750. (Impact Factor = 1.6).
8
11 1988
Elucidation of the structure of the compound formed by the reaction between curcumin and BF3-etherate, Srinivasa Rao, A., Divakar, S. and Seshadri, R.
Indian Journal of Chemistry, 27B, 926-928. (Impact Factor = 0.5).
12 1989
Determination of distances of sugar protons from Mn2+ in concanavalin A. Divakar, S.
Indian Journal of Biochemistry and Biophysics, 26, 190-195. (Impact Factor = 0.6).
13 1990
Structure of -cyclodextrin-vanillin inclusion complex. Divakar, S.
Journal of Agricultural and Food Chemistry, 38, 940-944. (Impact Factor = 2.6 ).
14 1990
Interaction of hexadecyltrimethylammonium bromide with yeast cell S. Divakar.
Indian Journal of Chemistry, 27, 112-117. (Impact Factor = 0.6).
15 1991
-Cyclodextrin catalysedautooxidation of benzoin. Maheswaran, M.M. and
Divakar,S.
Indian Journal of Chemistry, 30A, 181-183. (Impact Factor = 0.6).
16 1991
Carbon-13 NMR spectroscopic study of intracellular lipid production in Rhodotorula gracilis. Sattur, A.P., Karanth, N.G. and Divakar, S.
Indian Journal of Chemistry, 30B, 911-914. (Impact Factor = 0.5).
17 1991
Studies on the structure of theinclusion compound of cyclodextrin with aspartame.Maheswaran, M.M. and
Divakar,S.
Indian Journal of Chemistry,30A, 30-34. (Impact Factor =
0.6).
18 1991
NMR studies of cyclodextrincomplexes of linoleic acid and arachidonic acid. Jyothirmayi, N., Ramadoss, C.S. and Divakar, S.
Journal of Agricultural andFood Chemistry, 39, 2123-27.
(Impact Factor = 2.6).
19 1991
Binding of Cu2+- - cyclodextrin complex to calf thymus DNA. Divakar, S., Ramasarma, P.R. and Maheswaran, M.M.
Indian Journal of Biochemistryand Biophysics, 28, 247-251.
(Impact Factor = 0.6).
20 1992
Reimer-Tiemann reaction of guaiacol and catechol in the presence of cyclodextrin. Divakar, S., Maheswaran, M.M. and Narayan, M.S.
Indian Journal of Chemistry, 31B, 543-546. (Impact Factor = 0.5).
9
21 1993
Spectroscopic studies on the effect
of A13+ on calf thymus DNA. Jagannatha Rao, K.S. and
Divakar,S.
Bulletin of Environmental Contamination and Toxicology, 50, 92-99 ( Impact Factor = )..
22 1993
Solid-state carbon-13 NMR study of
some polysaccharides from cereals,
tuber, root and pulses. VasudevaSingh, Ali, S.Z. and Divakar, S.
Starch/Starke, 45, 59-62(Impact Factor = 1.0).
23 1993
Sodium borohydride reduction ofcamphor and menthone ininclusion complexes of cyclodextrin. Divakar, S.,Narayan, M.S. and Shaw, A.K.
Indian Journal of Chemistry, 32B, 387-389. (Impact Factor = 0.5).
24 1993
A structural study on naringin –cyclodextrin complex. Divakar,
S.
Journal of Inclusion Phenomenon and Molecular Recognition in Chemistry, 15, 305-316. (Impact Factor = 1.1).
25 1993
Selective hydroxymethylation of guaiacol in the presence of -cyclodextrin. Ravichandran, R. and Divakar, S.
Journal of Inclusion Phenomena and Molecular Recognition in Chemistry; 16, 201- 208. (Impact Factor = 1.1).
26 1994
Disposition of copper (II) in cyclodextrin. Divakar, S.
Journal of Inclusion Phenomena and Molecular Recognition in Chemistry, 17, 119 – 125. (Impact Factor = 1.1).
27 1994
Stereoselective reduction ofmenthone with sodium dithionitein the presence of -cyclodextrin. Ravichandran, R. and Divakar, S.
Journal of MolecularCatalysis, 93, L 247-251(Impact Factor = 2.8).
28 1994
Copper (II)- -cyclodextrin aidedoxidation of some cyclic
secondaryalcohols Divakar, S.,
Maheswaran,M. M. and Ravichandran R.
Indian Journal of Chemistry,33B, 177-178. (Impact Factor
= 0.5).
10
29 1994
-Cyclodextrin as inverse phasetransfer catalyst in oxidations ofisobomeol, bomeol and menthol
bycalcium hypochlorite in aqueoussolution. Ravichandran, R. andDivakar, S
Journal of MolecularCatalysis, 88(2), 117-120.
(Impact Factor = 2.8).
30 1994
-Cyclodextrin and its derivativesmediated stereoselective
reductionof R-(+)pulegone with sodiumdithionite. Ravichandran, R and Divakar, S.
Journal of InclusionPhenomena and MolecularRecognition in Chemistry, 18,369-375. (Impact Factor =
1.1).
31 1995
Unusual biphasic meltingbehaviour of Rhodotorula gracilisDNA. Vishnuvardhan D., Divakar,S. and Joseph, R.
Biochemical and Biophysical Research Communications, 211, 978 – 985. (Impact Factor = 2.6).
32 1995
Studies on Copper-(II)- cyclodextrin complex. Maheswaran, M.M. and Divakar,S.
Trends in CarbohydrateChemistry, P.L.Soni Ed.Surya InterrnationalPublications, India, 87-95.
(Impact Factor = ).
33 1995
-Cyclodextrin mediated synthesisof stereoregularity inpolyacrylonitrile polymers. Ravi,P. and Divakar, S.
Journal of MacromolecularScience- Pure and AppliedChemistry, A32 (5), 1061-1066.
(Impact Factor = .0.709)34 199
5Influence of embedded phenolgroups inside -cyclodextrin cavityin selective methylation of 2,4dihydroxybenzaldehyde. George,
Jand Divakar, S.
Indian Journal of Chemistry,34B, 1098-1101. (Impact
Factor = 0.7).
35 1996
Enhancement of oxidation of somecyclic secondary alcohols bycopper--cyclodextrin inpyridineacetic acid – hydrogenperoxide system. R. Ravichandranand S.Divakar.
Indian Journal of Chemistry,35B, 264-266. (Impact Factor
= 0.5).
36 1996
Hydrolysis of DL-tryptophanisopropyl ester catalysed by cyclodextrin. R. Ravichandran
andS.Divakar.
Indian Journal of Chemistry,Sec.A, 35A, 504-507. (Impact
Factor = 0.6).
11
37 1996
-Cyclodextrin and its derivativesdirected axial attack by hydride
ionin the reduction of R- (+)-
Pulegoneand (2S, 5R)-(-)-menthone. R.Ravichandran and S.Divakar.
Journal of Molecular CatalysisA, 109, 201 – 208. (Impact
Factor = 2.8).
38 1996
Reduction of trans-cinnamaldehyde over Raney Nickel mediated by derivatives of -cyclodextrin. Ravichandran, R. and Divakar, S.
Indian Journal of Chemistry,35B, 1167-1173. (Impact
Factor = 0.5).
39 1997
Structural studies on Inclusioncompounds of -cyclodextrin withsome ortho substituted phenols. Maheswaran, M. M. and
Divakar,S.
Journal of InclusionPhenomena and MolecularRecognition in Chemistry, 27,113-126. (Impact Factor =
1.1).40 199
7 Influence of -cyclodextrin in bio-transfomation of (+)-3-carene by cell suspension cultures of Acetobacter acetii. Pattekhan, M. C. Varadaraj, N. Keshava and S.Divakar.
Biotechnology Techniques,11(6), 379-383. (Impact Factor
= ).
41 1998
Inclusion of ring A of cholesterol inside -cyclodextrin cavity-Evidence from Oxidation Reactions and Structural Studies. Ravichandran and S.Divakar.
Journal of Inclusion Phenomena and Molecular Recognition in Chemistry, 30, 253-270. (Impact Factor = 1.1).
42 1998
Response surface studies on cholesterol reduction in egg-yolk using -cyclodextrin. Manohar, B., Channa Basappa, D. Narasimha Rao and S.Divakar.
Zeitschrift Lebensmittel Untersuchung and Forschung, 206,189-192. (Impact Factor = 1.6).
43 1998
A modified calorimetric method for
the estimation of -cyclodextrinusing phenolphthalein. ChannaBasappa, Pramila Rao,D.Narasimha Rao and S.Divakar.
International Journal ofFood Science and Technology 33, 1998, 517-520. (ImpactFactor = 1.1)
12
44 1999
Preparation of stearoyl lactic acid ester catalysed by lipases from Rhizopus Mucor meihei and Porcine pancreas-Optimization using responce surface methodology Kiran, K.R., N.G.Karanth and S.Divakar.
Appl. Microbiol. BioTech. 52, 1999, 579-584. (Impact Factor = 2.6)
45 1999
Optimisation of growth parameters
for the production of carotenoidsby Rhodotorula gracilis.G.Vijayalaksmi, V. Vanajakshi andS.Divakar.
Zelt.Leb. Unt. Fors, 208(2),1999, 121-124. (Impact Factor= 1.6)
46 1999
Bioinsecticide from Swallow Root(Decalepis hamiltonii Wight & Am)protects food grains against insectinfestation. Jacob George, G.A.Ravishankar, J. Pereira andS.Divakar.
Current Sci, 77(4), 1999, 501-502. (Impact Factor = 0.8)
47 1999
Regulatory nature of -cyclodextrin
in selective ring opening duringreduction of styreneoxide.Ravichandran, R. and Divakar, S.
J.Mol. Catal.A. Chemical 137,1999, 31-39. (Impact Factor =2.8)
48 1999
Digestion of residual -cyclodextrin
in treated egg using glucoamylosefrom a mutant strain of
Aspergillusniger (CFTRI 1105). Pramila
Rao..C.Suresh, D. Narasimha Rao,S.Umesh Kumar and S.Divakar,
Food Chemistry, 65, 1999, 297302. (Impact Factor = 2.7)
49 1999
Stereoselective hydrogenation of R
(+)-pulegone and (-)- 2S, 5R-menthone in presence of cyclodextrin and its derivatives,Ravi, P.Ravichandran, R. AndDivakar, S.
J. Mol.Catal. 148, 1999, 145-155. (Impact Factor = 2.8)
50 1999
-Cyclodextrin regulatedStereoregularity and Molecularweight in inclusion polymerizationof acrylonitrile, Ravi, P. andDivakar, S
J. Macromol. Sci., Pure andApplied Chemistry,36(12),1999,1935-1948.
(ImpactFactor = 0.7)
13
51 1999
Lipase catalysed synthesis ofisoamyl butyrate: Optimization byResponse Surface Methodology. S.Harikrishna, B. Manohar, S.Divakar and N. G. Karanth
J. Am. Oil Chem. Soc.76,1999,1483–1488. (Impact Factor = 1.0).
52 2000
Optimisation of digestionparameters for the elimination ofresidual -cyclodextrin used forcholesterol reduction in egg usingglucoamylase. Pramila Rao,
UmeshKumar, S. Narashima Rao, D andDivakar, S.
Z. Lebm. Unt. Fors, 210, 2000,231 - 236. (Impact Factor =1.6)
54 2000
-Cyclodextrin mediated synthesisof Syndiotactic rich Polystyrene. P.Ravi K. Udaya Shankar and S.Divakar.
J. Incln Phenom andMacrocyclic Chemistry 38,2000, 99-112(Impact Factor =1.1)
55 2000
Sa Safety aspects of residual - Ccycyclodextrin in egg treated forcholesterol removal. Pramila Rao,Sujatha, K.Vishwanatha, Rathinraj, KNarasimha Murthy, P. Sai Baba, D.Narasimha Rao and S.Divakar.
Z. Z. lebm. Unt. Fors. 211, 2000,393
395. (Impact Factor = 1.6)
56 2000
-Cyclodextrin mediated synthesis of sterically controlled styrene-acrylonitrile co-polymer. P. Ravi and S.Divakar
J. Inclusion Phenom and Macrocyclic Chemistry. 38, 2000. 323-336, (Impact Factor = 1.1)
57 2000
Optimisation of isoamyl acetate production using immobillsed lipase from Mucor miehei by Response Surface Methodology S. Harikrishna, B. Manohar, S.Divakar, S. G. Prafulla and N. G. Karanth. .
Enz. Microb. Tech. 26, 2000, 131- 136. (Impact Factor = 2.4)
58 2000
Response Surface Methodological study of esterification of lactic acid with palmitic acid catalysed by immobilisqd lipases from Mucor miehei and porcine pancreas. Kiran, K. R., Manohar, B., Karanth, N. G. and Divakar, S.
Z. Lebm. Unt. Fors. 211, 2000,130-135. (Impact Factor = 1.6)
14
59 2000
An esterification method fordetermination of lipase activity.Kiran, K. R., Harikrishna, H. SureshBabu, C. V., Karanth, N. G. AndDivakar, S.
Biotechnology Letters, 22(19),2000, 1511 -1514. (ImpactFactor =1.6)
60 2001
Stereoselective Hydrogenation of Thymol Over Rh/Alumina in the Presence of Cyclodextrin and its derivatives. P. Ravi and S.Divakar.
J. Incln Phenom., 2001, 39, 27-32. (Impact Factor =1.1)
61 2001
Selection of alcohols throughPlakett-Burman design in lipasecatalyzed syntheses of anthranilicacid. C.V. Suresh Babu andS.Divakar,
J. Am. Oil Chem. Soc., 78(1),2001, 49 – 52. (Impact Factor
=1.0)
62 2001
Enzymatic synthesis of isoamyl acetate using immobilised lipase from Rhizomucor meihei. S. Harikrishna, S.Divakar, S.G. Prapulla and N.G. Karanth,
J. Biotechnology, 87(3), 2001, 193-201. (Impact Factor = 2.7)
63 2001
Lipase catalysed esterification of - terpineol with various organic acids Application of the Plakett- Burman design. Pramila Rao and S.Divakar,
Process Biochemistry, 36,2001,1125 - 1128. Impact
Factor – 2.4
64 2001
Lipase catalysed synthesis oforganic ester of lactic acid in nonaqueous media. K. R. Kiran and S.Divakar.
J. Biotechnology., 87, 2001, 109121. (Impact Factor = 2.7)
65 2001
Thermostability of porcine pancreas
lipase in non - aqueous media.Kiran, K. R., Suresh Babu, C. V.
AndDivakar, S.
Process Biochemistry, 36, 2001, 885 – 892. Impact Factor – 2.4
66 2001
Response surface methodological approach for the synthesis of isobutyl butyrate. D.R. Hamsaveni, S. G. Prapulla, and S. Divakar.
Process Biochemistry, 36(11), 2001, 1103 – 1109. (Impact Factor – 2.4)
67 2001
A central composite rotatabledesign analysis of lipase catalysedsynthesis of lauroyl lactic acid atbench-scale level. Kiran, K. R.,Manohar, B. and Divakar, S.
Enz. Microbial Technology,29, 2001, 122-128. (ImpactFactor = 2.4)
15
68 2001
Response surface methodology for optimisation of growth parameters for the production of carotenoids by a mutant strain of Rhodotorula gracilis. G. Vijayalakshmi, B. Shobha, V. Vanajakshi, S.Divakar and B. Manohar.
Z. Lebs. Unt. Fors. 213, 2001, 234-239. (Impact Factor = 1.6)
69 2001
New metabolic pathway for o-cresol degradation by Pseudomonas CP4 as evidenced by 'H NMR spectroscopic studies. P. Y. Aneez Ahamad, A. A. M. Kunhi and S. Divakar.
World J Microbiol. Biotechnol, 17, 2001, 371-377. (Impact Factor = 0.9)
70 2001
Physico-Chemical properties ofpolystyrene prepared by inclusionpolymerisation. P.Ravi,
S.Divakar,Siddaramaiah and R. Somashekar.
J. Polymer Materials, 19, 2001,127-134. (Impact Factor =0.3)
71 2001
Regioselectivity in the preparation of2-hydroxy-4-ethoxybenzaldehyde from resorcenol in presence of - cyclodextrin and its derivatives. H. H. Pattekhan and S.Divakar.
J. Mol. Catal A:Chemical, 169,2001, 185-191. (Impact Factor
=2.8)
72 2001
14-(2’,3’,5’-trihydroxyphenyl)tetradecane-2-ol, A novelacetylcholinesterase inhibitor
fromChrysosporium sp. K.C. Sekhar
Rao,S. Divakar, N. G. Karanth and
A.P.Sattur.
The Journal of Antibiotics.54(10), 2001, 848-849. (ImpactFactor = 1.3)
73 2001
Scanning electron microscopicstudies of lipase catalysedesterification catalysis for tesynthesis of steroyl lactate and pcresyl lactate. Suresh Babu, C. V.,Kiran, K, R. and Divakar, S.
World J. Micro. Biotech. 17,2001, 659 – 665. (Impact
Factor = 0.9)
16
74 2002
Regioselective acetylation of 4-tbutylcyclohexanol in the presence
of-cyclodextrin and its derivatives
H.H. Pattekhan and S.Divakar.
J. Mol. Catal A:Chemical, 184,2002, 79-83. (Impact Factor =2.8)
75 2002
A lipoxygenase inhibitor fromAspergillus niger. K.C. Sekhar Rao,
S.Divakar, A. G. Appu Rao, N. G.Karanth and A.P. Sattur.
Appl. Microbiol. Biotech. 58,2002, 539-542. (Impact Factor = 2.6)
76 2002
MModelling on isoamyl isovaleratesynthesis from Rhizomucor miehei
lipasein organic media: Optimisation
studies. Chowdary, G.V., Divakar, S. AndPrapulla, S. G.
World Journal of Microbiologyand Biotechnology, 18, 2002, 179-185. (Impact Factor =0.9)
77 2002
Response surface methodologicalapproach for Rhizomucor mieheilipase-mediated esterification of
-terpineol with propionic acid andacetic anhydride. Pramila Rao andDivakar, S.
World Journal of Microbiologyand Biotechnology, 18, 2002,341 - 345. (Impact Factor =0.9)
78 2002
Lipase catalysed esterification offree hydroxyl groups -
cyclodextrinand its derivatives. H. H. Pattekhan and S.Divakar.
Indian Journal of Chemistry,41B, 1025-1027. (Impact
Factor = 0.5).
79 2002
Lipase catalysed esterification of cresols. Suresh Babu, C. V., Karanth, N. G. and S. Divakar,
Indian Journal of Chemistry,41B, 1068-1071. (Impact
Factor = 0.5).80 200
2NMR and HPLC characterisation of O – alkanoyl lactates prepared by lipase catalysis. K. R. Kiran and S. Divakar.
Indian Journal of Chemistry,41B, 1686 – 1693. (Impact
Factor = 0.5).
81 2002
Preparation of O-palmitoyl alkyl lactates through lipase catalysis. K. R. Kiran and S. Divakar
World Journal of Microbiologyand Biotechnology, 18(2), 121124. (Impact Factor =0.9)
17
82 2002
Hydrogen ions in microaqueous phase during lipase catalysed esterification in non-aqueous media. K. R. Kiran, N.G. Karanth and S.Divakar.
Indian Journal of Biochemistry and Biophysics, 39, 101 – 105. (Impact Factor = 0.6).
83 2002
Lipoxygenase inhibitor fromLactobacillus casei. . K.C. Sekhar
Rao,S. Divakar, A. G. Appu Rao, N.
G.Karanth and A.P. Sattur.
Biotechnology Letters, 24(7),511-513. (Impact Factor =
1.6).
84 2002
Plakett-Burman design for determining the preference of Rhizomucor miehei lipase for fatty acid in acidolysis reactions with coconut oil. Reena Rao, S. Divakar and B. R. Lokesh.
Journal of American Oil Chemists’ Society, 79, 555 –560. (Impact Factor = 1.0).
85 2002
Enzyme inhibition by p-cresol and lactic acid in lipase mediated syntheses of p-cresyl acetate and stearoyl lactic acid: A kinetic study. Kiran, K. R. and Divakar, S..
World Journal of Microbiologyand Biotechnology, 18, 707 –712. (Impact Factor =0.9)
86 2002
Structure - Function correlation in lipase catalysed esterification reactions of short and medium carbon chain length alcohols and acids. S. Divakar.
Indian Journal of Chemistry,Section B, 41B, 1919 – 1922.
(Impact Factor = 0.5).
87 2002
Application of central composite rotatable design to lipase catalyzed syntheses of m-cresyl acetate. Manohar, B. and Divakar, S.
World Journal of Microbiologyand Biotechnology, 18(8), 745751. (Impact Factor =0.9)
88 2002
Asperenone – An inhibition of 15-lipoxygenase and of human platelet aggregation from Aspergillus niger. K.C. Sekhar Rao, S. Divakar, A. G. Appu Rao, N. G. Karanth, W.J. Suneetha, T.P. Krishna Kantha and A.P. Sattur.
Biotechnology Letters, 24,1967-1970. (Impact Factor =
1.6).
18
89 2002
Nigerloxin - A novel inhibitor of Aldose reductase and lipoxygenase from Aspergillus niger CFR W-105 K.C. Sekhar Rao, S. Divakar, K. Naveen Babu, A.G. Appu Rao, N. G. Karanth and A.P. Sattur.
Journal of Antibiotics, 55 (9),789-793. (Impact Factor =
1.3).
90 2003
Sodium dithionite reduction of2S,5R-(-)-menthone and R-(+)pulegone in the presence of – cyclodextrin and hydroxypropyl-cyclodextrin. P. Ravi and S.Divakar.
Journal of InclusionPhenomena and MacrocyclicChemistry, 45, 2003, 191-194.
(Impact Factor = 1.1).
91 2003
Copper (II)-–cyclodextrin aidedoxidation of eugenol. H.H.Pattekhan and S. Divakar.
Indian Journal of Chemistry,42B, 2003, 369-371. (Impact
Factor = 0.5).
92 2003
Lipase catalysed regioselective esterification of protocatechuic aldehyde. S. Divakar,
Indian Journal of Chemistry,Section B, 42B, 1119-1122.
(Impact Factor = 0.5).93 200
3Porcine pancreas lipase catalysed preparation of oligomers of p-hydroxybenzoic acid and p-aminobenzoic acid. S. Divakar.
Indian Journal of Chemistry,Section B, 42B, 1467–1470.
(Impact Factor = 0.5).
94 2003
Asperaldin - A new aldose reductase inhibitor from Aspergillus niger CFR 1046. K.C. Shekar Rao, S. Divakar, K. Naveen Babu, N.G.Karanth and A.P. Sattur. .
The Journal of Antibiotics, 56,173 – 176. (Impact Factor =
1.3).
95 2003
Lipase catalysed polymerisation of lactic acid. K.R. Kiran and S. Divakar.
World Journal of Microbiologyand Biotechnology, 19, 859-865 .
(Impact Factor =0.9)96 200
4Application of surface plots and statistical designs to selected lipase catalysed esterification reactions. B. Manohar and S. Divakar,.
Process Biochemistry, 39 (7), 2004, 847 – 851. (Impact Factor = 2.4).
97 2004
Porcine pancreas lipase catalysed ring-opening polymerisation of - caprolactone. S. Divakar,
Journal of Macromolecular Science A – Pure and Applied Chemistry, A41(5), 2004, 537-546. (Impact Factor = 0.7).
19
98 2004
Isolation and identification of a radical scavenging antioxidant – punicalagin from pith and carpellary membrane of pomegranate fruit (Punica granatum). Kulkarni, A.P., Aradhya, S.M. and Divakar, S.
Food Chemistry, 87, 551-557. (Impact Factor = 2.7).
99 2004
Lipase catalysed synthesis of L-alanyl, L-Leucyl and L-phenylalanyl esters of D-glucose using unprotected amino acids. G.R. Vijayakumar, K. Lohith, B.R. Somashekar and S. Divakar.
Biotechnol. Letters 26, 2004, 1323-1328. (Impact Factor = 1.6).
100 2004
Porcine pancreas lipase catalysed acetylation of –cyclodextrin anchored 4-t-butylcyclohexanol. B. Manohar and S. Divakar.
Indian Journal of Chemistry,Section B, 43B, 2004, 2661-
2665. (Impact Factor = 0.5).
101 2005
Amyloglucosidase catalyzed synthesis of n-octyl–D-glucoside – Analysis using response surface methodology. G.R. Vijayakumar, B. Manohar and S. Divakar.
European Food Research and Technology, 220, 2005, 272-277. (Impact Factor = 1.6).
102 2005
Isolation of a free radical scavenging antioxidant from water spinach (Ipomea aquatica Forsk). Nagendra Prasad, S. Divakar, G.R. Shivamurthy and S.M. Aradhya,
Journal of the Science of Foodand Agriculture, 85, 1461-1468.
(Impact Factor = 1.3).
103 2005
Lipase catalysed synthesis of L-phenylalanine-D-glucose. K. Lohith and S. Divakar.
Journal of Biotechnology, 117, 2005, 49-56. (Impact Factor = 2.7).
104 2005
An artificial neural network analysis of porcine pancreas lipase catalyzed esterification of anthralic acid with methanol. B. Manohar and S. Divakar.
Process Biochemistry, 40, 2005, 3372-3376. Impact Factor – 2.4
20
105 2005
Synthesis of guaiacol--glucoside and curcumin-bis--D-glucoside by an amyloglucosidase from Rhizopus. G.R. Vijayakumar and S. Divakar..
Biotechnology Letters,27(18),2005, 1411-1415.
(Impact Factor = 1.6).
106 2005
Isolation of antioxidant compounds from the methanolic extract of the roots of Decalepis hamiltonii. (Wight and Ani.) R. Harish, S. Divakar, Anoop Srivastava and T. Shivanandappa.
Journal of Agricultural andFood Chemistry, 53(20), 77097714. (Impact Factor = 2.6).
107 2006
Glycosylation of vanillin by amyloglucosidase in organic media. R. Sivakumar and S. Divakar.
Tetrahedron Letters. 47, 2006, 695-699. (Impact Factor = 2.5).
108 2006
Amyloglucosidase catalysed synthesis of curcumin-bis--glucoside – A response surface methodological study. G.R.Vijayakumar, B.Manohar and S. Divakar.
European Food Research andTechnology. 223, 2006, 725-730.
(Impact Factor = 1.6).
109 2006
Angiotensin Converting Enzyme inhibitory activity of amino acid esters of carbohydrates. Vasudeva Kamath,, Rajini P.S, Lohith K, Somashekar B.R and Divakar S.
International Journal of Biological Macromolecules. 38, 2006, 89-93. (Impact Factor = 1.9).
110 2006
Competitive substrate inhibition of amyloglucosidase from Rhizopus sp. by vanillin and curcumin. R. Sivakumar, G.R. Vijayakumar, B. Manohar and S. Divakar
Biocatalysis and Biotransformations, 24, 2006, 299-305. (Impact Factor = 1.2).
111 2006
Influence of buffer and L-phenylalanine concentration in the Rhizomucor miehei lipase catalysed synthesis of L-phenylalanyl-D-glucose ester investigated through response surface methodology. K. Lohith, B. Manohar and S. Divakar.
European Food Research and Technology. 224(2), 2006, 219-224. (Impact Factor = 1.6).
21
112 2006
Glycosides and amino acyl esters of carbohydrates as potent inhibitors of Angiotensin Converting Enzyme. K. Lohith, G. R. Vijayakumar, B. R. Somashekar, R. Sivakumar, S.Divakar
European Journal of Medicinal Chemistry 41, 2006, 1059-1072. (Impact Factor = 2.9).
113 2007
Lipase catalyzed synthesis of L-alanyl esters of carbohydrates. B.
R.Somashekar and S. Divakar.
Enzyme and MicrobialTechnology, 40, 2006, 299-309.
(Impact Factor = 2.4).
114 2007
Nuclear magnetic resonance spectroscopic studies on the microbial degradation of mononitrophenol isomers. Shabana basheer, A. A. M. Kunhi, M. C. Varadaraj and S. Divakar.
World Journal of Microbiologyand Biotechnology, 23(1), 49-
63 . (Impact Factor = 0.9)
115 2007
Isolation and characterization of dihydromonacolin-MV from Monascus purpureus for antioxidant properties. Mohan A. Dhale, S. Divakar, S. Umesh Kumar, and G.Vijayalakshmi.
Journal ofAppliedMicrobiology andBiotechnology, 73, 11971202. (Impact Factor =
2.0). 116 200
7Synthesis of n-alkyl glucosides by amyloglucosidase. G.R. Vijayakumar, Charles George and S. Divakar.
Indian Journal of Chemistry.46B, 2007, 314-319. (Impactfactor-0.5)
117 2007
Identification of difurocumenonal, a new antimicrobial compound from mango ginger Curcuma amada. R.S. Police Gowda, S. Divakar and S.M. Aradhya.
Journal of AppliedMicrobiology.102, 2007, 15941602. Impact Factor-2.0.
118 2007
Inhibition of Rhizomucor miehei and Candida rugosa lipases by D-glucose in esterification between L-alanine and D-glucose. B.R. Somashekar, K. Lohith, B. Manohar and S. Divakar.
Journal of Bioscience and Bioengineering, 103(2), 2007, 122-128. Impact factor- 1.7
22
119 2007
Competitive inhibition by substrates
of the esterification reactionbetween L-phenylalaninine and Dglucose catalysed by the lipases
ofRhizomucor miehei and Candidarugosa. K. Lohith, B. Manohar and
S.Divakar.
World Journal of Microbiologyand Biotechnology, 23,2007,955-964. Impact factor-0.9
120 2007
Candida rugosa lipase catalysedpreparation of L-prolyl, Lphenylalanyl, L-tryptophanyl andL-histidyl esters of carbohydrates.K.Lohith and S. Divakar 2006.
Biochemical EngineeringJournal. 34, 2007, 28-43.
(Impact Factor = 1.9).
121 2007
Synthesis of vanillyl-maltosideusing glucosidases by responsesurface methodology. R.
Sivakumar,B. Manohar and S. Divakar.
European Journal of FoodResearch and Technology,226, 2007, 255-263. Impactfactor- 1.6
122 2007
Amyloglucosidase catalyzedsynthesis of eugenyl andcurcuminyl glycosidesG.R.Vijayakumar and S.
Divakar..
Biotechnology Letters, 29,2007,575-584. Impact factor-1.6
123 2007
Isolation and characterization ofdihydromonacolin-MV2 fromMonascus purpureus for
antioxidantproperties. Mohan A. Dhale, S.Divakar, S. Umesh Kumar, andG.Vijayalakshmi.
Journal of AppliedMicrobiology, 102 (6), 11941203. (Impact Factor = 2.0).
124 2007
Synthesis of N-vanillyl-nonanamide
glycosides using amyloglucosidase
glucosidase for Rhizopus and glucosidase from sweet almond.
R.Sivakumar and S. Divakar.
Biotechnology Letters, 29,2007, 1537-1548. Impact
factor1.6
125 2007
Enzymatic synthesis of L-valyl, Lleucyl and L-isoleucyl esters ofcarbohydratesusing Candida
rugosalipase . B.R. Somashekar and S.Divakar.
Indian Journal of Chemistry,section B, 46B, 2007, 2026-
2044.Impact factor-0.5
23
126 2008
Synthesis of -tocopherl glycosides
T. Ponrasu, R.E. Charles, R.Sivakumar and S.Divakar.
Biotechnology Letters, 2008,30, 1431-1439 Impact factor1.6
127 2008
Possibledegradation/biotransformat
on of lutein in vitro and in vivo –Isolation and structural elucidationOf lutein metabolites by HPLC
and LC MS (APCI). R. aksminarayana,
G. Aruna, R.K. Sangeetha, N.
Bhaskar, S.Divakar and V. Baskaran
Free Radicals in Biology andMedicine. 2008,45, 982-993.Impact Factor – 4.813
128 2009
Angiotensin converting enzyme inhibitory and antioxidant activities of enzymatically synthesized phenolic and vitamin glycosides R.E. Charles , T. Ponrasu, R. Sivakumar and S.Divakar
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY. 2009, 52, 177-184., (Impact Factor – 1.269 )
129 2009
Syntheses of dopa glycosides using
glucosidases. R. Sivakumar, T.Ponrasu and S. Divakar.
Glycoconjugate Journal. 2009, 26, 199-209.
Impact Factor – 1.7
130 2009
Enzymatic syntheses of dopamine glycosides. R. Sivakumar and S.Divakar
Enzyme and Microbial Technology, 2009, 44, 33-49. Impact Factor – 2.4
131 2009
-glucosidase catalysed syntheses of Pyridoxine glycosides. R.E. Charles and S.Divakar
Bioscience, Biotechnology and Biochemistry 2009, 73, 233-236. Impact Factor – 1.247
132 2009
A response surface Methodological
study on prediction of glucosylation
yields of thiamin using immobilized
-glucosidase T. Ponrasu , B. Manohar and S.Divakar
Process Biochemistry, 2009, 44, 251-255 . Impact Factor – 2.4
24
133 2009
Syntheses of retinol glycosides using -glucosidase in SCCO2
media. R.E. Charles , T. Ponrasu, K. dayashankar and S.Divakar
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY. 2009, 159, 199-207. Impact Factor - 1.643
134 2009
Amyloglucosidase catalyzed syntheses of Bakuchiol glycosides in SCCO2. B. Manohar , S.Divakar, K. Udaya Sankar
Bulletin of Korean Chemical Society. 2009, 30, 1760- 1766. Impact Factor - 1.043
135 2009
Amyloglucosidase from Rhizopus mold and -glucosidase from
sweet almond catalyzed synthesis of riboflavinyl glycosides R.
Sivakumar and S.Divakar
Indian Journal of Biotechnology. 2009, 8, 400-407. (Impact Factor = ).
136 2010
Bioavailability and metabolismof fucoxanthin in rats: structural characterization of metabolites by LC-MS (APCI). R.K. Sangeetha, N. Bhaskar, S. Divakar and V. Baskaran.
Molecular and Cellular Biochemistry. 2010, 333, 299-310Impact Factor - 1.643
137 2009
Evaluation of phophoglyco lipid elimination from rice bran oil by a non-porus membrane using NMR spectroscopy Manjula S, Divakar S, Subramanian R
European Journal of Food Science and Technology , 111 (10),1020-1026 Oct 2009. (Impact Factor = ).
138 2010
Enzymatic synthesis of Cholecalciferol glycosides. B. Manohar and S.Divakar
Journal of Food Science and Technology, 2010, 46(5), 469-475 Impact Factor - 0.2
139 2010
Chemical composition of Nigella sativaL. Seed extracts obtained by SCCO2, TV Suresh Kumar, HH Pattekhan, K.Udayasankar and S. Divakar
Journal of Food Science and Technology, 2010, Volume 47 (6), p.598. (Impact Factor = 0.2).
140 2010
Degumming rice bran oil by phospholipase A1, Manjula S, Divakar S, Subramanian R
European Journal of Lipid Science and Technlogy, 2010, 113, 658-664. (Impact Factor = ).
25
141 2011
Enzymatic Synthesis of serotonyl and epinephryl glycosides, G.Vadivelan and S. Divakar
International Journal of Fundamental and Applied Life Sciences, 2011, Vol 1(2), 15-21. (Impact Factor = ).
142 2011
Enzymatic synthesis of L-Dopa glycosides G. Vadivelan and Divakar S
Indian Journal of Chemistry, Section B, 50B, 1779-1785,2011. (Impact Factor = ).
143 2012
Prediction Of Yields In Glucosylation Of Ergocalciferol Through Response Surface Methodology and Artificial Neural Network Analysis
International Journal of Fundamental and Applied Life Sciences,2(4), 40-50
144 2013
Enzymatic Synthesis of thymol glycosides, TV Suresh Kumar, K.Udayasankar and S. Divakar
Journal of Food Science and Technology, 50(4), 803-808. (Impact Factor = ).
Papers Presented in Seminars and Symposia : 56Member
Association of Food Scientists and Technologists India
Society of Biological Chemists India
Nuclear Magnetic Resonance Society of India
Other Activities:
1. Recognized as a guide for students towards award of M. Phil and Ph.D degree in Chemistry, Biochemistry and Biotechnology in University of Mysore.
2. Recognized as a referee for Indian Journal of Chemistry, Section B, Process Biochemistry, Journal of Agriculture and Food Chemistry and Biotechnology Progress.
Information on Ph.D Students:
a) Number of students awarded Ph.D degree: Ten
26