Intro. to Food lab - shaunab.infoshaunab.info/Biology/Biology_Labs/chap 4/Intro. to Food lab.pdf ·...

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Transcript of Intro. to Food lab - shaunab.infoshaunab.info/Biology/Biology_Labs/chap 4/Intro. to Food lab.pdf ·...

  • Intro to Identifying Biological Molecules

    in Food Lab Pleaseexcusethecorninmyteeth.

  • MoreInformationonReducingsugars:

  • ComplexCarbohydratesstarches

  • Lugols(Iodine)TestsforStarchDont forget to tap the test tubes!

  • LipidsTriglycerides

  • SudanIVTestforLipids

  • Positive

    Dont forget to tap the test tubes!

  • BrownPaperBagTestforLipids

    Intheprocessofdrying

    Afterdrying

  • Dont forget to tap the test tubes!

  • ProteinsPolypeptidesarechainsofaminoacidsheldtogetherbypeptidebonds

  • Positive

    PURPLECOLORCHANGE

  • BiuretTestsforProteinsDont forget to tap the test tubes!