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CHEMIC L

SPECTS

O

RICE GR IN

QU LITY

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PROCEEDINGS

OF

THE

WORKSHOP

ON

CHEMIC L

SPECTS

OF

RICE GR IN

QU LITY

979

JNfERNATIONAL RICE RESEARCH INSTITUTE

· L< S BANOS LAGUNA PHILIPPINES

· P.O. BOX 933

MANILA

PHILIPPINES

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Correct citation International Rice Research Institute.

1979. Proceedings

o

the Workshop on Chemical Aspects

o

Rice Grain Quality. Los Bafios, Laguna, Philippines.

The International Rice Research Institute receives supper

from a number o donors including the Ford Foundation,

the Rockefeller Foundation, the European Economic

Community, the United Nations Development Programme,

the United Nations Environment Programme, the Asian

Development Bank, the International Development

Research Centre, the

World

Bank, and the international

aid agencies o the following governments: United States,

Canada, Japan, United Kingdom, Netherlands, Australia,

Federal Republic

o

Germany, Iran, Saudi Arabia,

ew Zealand, Belgium, Denmark, and Sweden.

The responsibility for all aspects

o

this publication rests

with the International Rice Research Institute.

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  ontents

Foreword

Opening remarks

v

RICE

GR IN

RESE RCH

The Genetic Evaluation and Utilization program o the International Rice

Research Institute 7

M.D. PATHAK

Rice

grain quality evaluation and improvement at IRRI 21

G

S KHUSH C M. PAULE and

N

M. DE LA CRUZ

IRRI s efforts to improve the protein content o rice 33

J.

S

NANDA

and W

R

COFFMAN

Genetic studies on the grain quality o rice 49

T. T.

C1:1ANG

and B. SOMRITH

Effect o environment on protein and amylose content o rice 59

K A.

GOMEZ

The chemical basis o rice grain quality 69

B

0.

JULIANO

The nutritional value o rice in comparison with other cereals 91

B.

0.

EGGUM

COUNTRY

REPORTS

Rice grain quality evaluation in Australia 115

A. B BLAKENEY

Studies on quality o rice in Bangladesh 123

N.H. CHOUDHURY

Rice breeding for grain quality in France 129

P FElL

LET and

R

MARIE

Status o rice breeding for grain quality in India

13

5

K.R.BHATTACHARYA

Rice grain quality evaluation in Japan 149

H

SUZUKI

H.IKEHASHI

and

K

KUSHIBUCHI

Rice grain quality evaluation in the Philippines 161

F

E

MERCA T. M. MASAJO and A. D BUSTRILLOS

Rice grain quality evaluation in Spain 167

S BARBER and

E

TORTOSA

Rice grain evaluation in

Sri

Lanka 175

C

BRECKENRIDGE

Physicochemical properties o Thai rice varieties and methodology used

in quality improvement 183

N.KONGSEREE

Components o rice quality: their identification, methodology, and stage

o application in United States breeding programs 191

B. D. WEBB C. N.

BOLLICH

T. H. JOHNSTON.

and W. 0.

MCILRAIH

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REVIEW OF

METHO OLOGY

Outlook for rice milling quality evaluation systems 209

S BARBER

and

C BENEDITO DE BARBER

Methodology o assessing appearance o the rice grain, including

chalkiness and whiteness 223

H. I KEHASHI and G S KHUSH

Gelatinization temperature o rice starch and its determination 231

K R BHATTACHARYA

Amylose analysis in rice - a review 251

B

0 JULIANO

Amy1ography and alkali viscography o rice

26

H

SUZUKI

Assessing parboil-canning stability o rice in varietal improvement

programs. 283

B

D

WEBB

Gel

consistency and viscosity o rice 293

C M. PEREZ

Quality tests for waxy glutinous) rice 303

N.KONGSEREE

Sensory assessment o cooked milled rice 313

A M. DEL MUNDO

Use

o the Texturometer for measuring the texture o cooked rice

32

7

H. SUZUKI

lnstron measurement o cooked-rice texture 343

A

B

BLAKENEY

Use o the Viscoelastograph for measuring the texture o cooked rice

35

5

B

LAIGNELET

and P FEILLET

Tests for parboiled rice 363

K R BHATTACHARYA

WORKSHOP

REPORTS

Priority research problem areas for assessment o grain quality in

rice-breeding programs - workshop committee report

Collaborative testing - report o the workshop chairmen

B

D.

WEBB and

A.

B BLAKENEY

Appendix A - Participants and authors

Appendix

B -

Abbreviations

377

381

385

390