fermentation selected slides - pgia.ac.lk ?· alcoholic fermentation alcoholic fermentation of...

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  • FERMENTATIONSelected slides

    FT 5105 Food Microbiology

  • FT 5105 Food Microbiology 2

  • FT 5105 Food Microbiology 3

  • Alcoholic Fermentation

    Alcoholic fermentation of glucose

    C6H12O6 2 C2H5OH + 2 CO2glucose ethanol carbon dioxide

    Glucose Glycolysis Pyruvic Acid

    AcetaldehydeEthyl Alcohol

    CO2

    ATPATP

    NADHNADH

    NAD+

    NAD+

  • Lactic Acid Fermentation

  • Fermenters

    FT 5105 Food Microbiology 6

  • FT 5105 Food Microbiology 7

  • FT 5105 Food Microbiology 8

  • Industrial Fermentation Process

    FT 5105 Food Microbiology 9

  • FT 5105 Food Microbiology 10

  • FT 5105 Food Microbiology 11

  • FT 5105 Food Microbiology 12

  • Culture Action Diary Product

    L. delbrueckii bulgaricus

    Acid and flavor Bulgarian butter milk

    L. Acidophilus Acid Acidophilus milk

    Leuconostoc cremoris

    Flavor Cultured buttermilk, sour cream, cottage cheese

    S. lactis diacetylactis

    Acid and flavor Sour cream, buttermilk

    L. lactis and bulgaricus and yeast

    Acid and alcohol Kefir & Kumiss

    S. faecalis Acid and flavor Swiss and Cheddar cheese

  • FT 5105 Food Microbiology 14Mashing vessels

  • FT 5105 Food Microbiology 15

    Lauter Tun

  • FT 5105 Food Microbiology 16

    Hops

  • FT 5105 Food Microbiology 17

    Fermentation tanks

  • FT 5105 Food Microbiology 18Beer production process flow diagram

  • FT 5105 Food Microbiology 19

    Beer production process

  • FT 5105 Food Microbiology 20

    A

    B

    C

    DE

    F

    A-B - Germicidal actionB-C - S. lactisC-D - LactobacillusD-E - molds (oxidize

    acids) + yeasts (produce NH3)

    E-F - Proteolytic spore former bac.

    Aci

    dit

    y %

    Time

    Sequence of changes in raw milk in relation to acid concentration

  • FT 5105 Food Microbiology 21

    Aci

    dit

    y %

    Time (days)

    Sequence of acid fermentation in sauerkraut production

    L. mesenteroides

    L.curcumeris

    L. Pentoaceticus & L. plantarum

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