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FERMENTATION
PRESENTED BY :- SUMIT BANSAL
FOOD TECH.
DEFINITION
Fermentation is a metabolic process in which
an organism converts a carbohydrate such as
starch or sugar into an alcohol or an acid for
e.g. Yeasts perform fermentation to obtain
energy by converting sugar into alcohol . the
science of fermentation is known as zymology
WHAT IS FERMENTATION
• Fermentation is derived from latin verb fevere
– to boil.
• Fermentation has different meaning to
biochemistry and industrial microbiologists.
• Also employed in preservation to create lactic
acid in sour food such as pickles, kimchi and
yogurt.
RANGE OF FERMENTATION PROCESS
THERE ARE FIVE MAJOR GROUP OF COMMERCIAL
IMPORTATNT FERMENTATION :-
→Those that produce microbial cell as the product.
→Those that produce microbial enzyme.
→Those that produce microbial metabolite.
→Those that produce recombinant product.
→The transformation process.
HISTORY OF FERMENTATION
• The history of industrial microbiology can be
divided into five phases :
PHASES TIME PERIOD
PHASE 1 UP TO 1900 ALCOHOL
FERMENTATION
PHASE 2 1900 – 1940 ANTIBIOTIC
PHASE 3 1940-1964 SINGLE CELL PROTEIN
PHASE 4 1964-1979 METABOLITE
PRODUCTION
PHASE5 1979 ONWARDS BIOTECHNOLOGY
FERMENTATION PRO’S AND CON’S
PRO’S CON’S
Extended shelf life of food Can be unpredictable
Easy digestion New (worse) Texture
New (better) Flavour
(Ex. Chocolate)
New (worse) flavour
(e.g. Mouldy bread taste terrible)
Aerobic respiration Anaerobic respiration
Release of energy from glucose or
another organic substrate in the presence
of oxygen
Release of energy from glucose or
another organic substrate in the absence
of Oxygen
PRODUCTS :- Co2 , H2O an energy
produced
PRODUCTS :- CO2 , energy and alcohol or
various organic acid.
TYPE OF FERMENTATION
• SOLID STATE FERMENTATION
• SUBMERGED FERMENTATION
• ANAEROBIC FERMENTATION
• AEROBIC FERMENTATION
• IMMOBILIZED CELL FERMENTATION
• IMMOBILIZED ENZYME BIOREACTORS
• SOLID STATE FERMENTATION:- In SSF
fermentation microbial growth and product
formation occur at the surface of the solid
substrate. For e.g. mushroom cultivation,
starter culture.
• SUBMERGED FERMENTATION:-It has four type
(a)Batch
(b)Fed Batch
(c)Semi continuous
(d)Continuous
• ANAEROBIC FERMENTATION :- In ANF usually
aeration is not needed but in some case initial
aeration is required for inoculum build up .
• AEROBIC PROCESS :- In Aerobic fermentation
adequate amount of fermentation is required .
In some case air is required about the 60
times of the volume of the medium . The
sterilize air is generally sprayed or sparged
into medium .
FERMENTATION CONDITION
• CARBON SOURCE
• NITROGEN SOURCE
• GROWTH FACTOR
• PH
• TEMPERATURE
• TIME
• YIELD
VARIOUS MICROBIAL FERMENTATION
• BACTERIAL FERMENTATION
• YEAST FERMENTATION
• MOULD AND ENZYME FERMENTATION
BACTERIAL FERMENTATION
# LACTIC ACID BACTERIA
(PICKLE OR SAURKERAUT)
# ACETIC ACID BACTERIA
(VINEGAR)
# CARBON DIOXIDE BACTERIA
(EDAM, GOUDA, SWISS)
# PROTEOLYTIC BACTERIA
(COCOA, CHOCOLATE)
YEAST FERMENTATION
• GLUCOSE -> ETHYL ALCOHOL + CO2
• BEST TEMPERATURE 27C
• OTHER SUGAR WILL FERMENT (MALTOSE ,
FRUCTOSE AND SUCROSE)
• TOO MUCH SALT RUINS THE PROCESS
MOULD AND ENZYME FERMENTATION
• ENZYME IN MOULD CAN BE USEFUL:-
- BREAKDOWN CELLULOSE THUS GRAINS
EASIER TO CHEW.
- ADD FLAVOUR AND TEXTURE TO CHEESE.
EXAMPLES OF FERMENTATION
• YOGURT
• WINE
• BEER
• BREAD
• IDLI
• SAURKERAUT
• KIMCHI
• KANJI
Lactose
Lactic acid Bacteria
------------------------->
Acid causes casein (milk
protein) to denature and
hold water into a
semi-solid gel = yogurt
(Milk sugar)
How Does Milk Turn Into Yogurt?
Lactic Acid
WINE
BEER
• MALTING(STEEPING & KILNING)
• MASHING
• BOILING WORTS WITH HOPS
• FERMENTATION
• AGEING AND MATURING
• FINISHING
THANK YOU 

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Fermentation / fermented food / type of fermented food / microbial action

  • 1. FERMENTATION PRESENTED BY :- SUMIT BANSAL FOOD TECH.
  • 2. DEFINITION Fermentation is a metabolic process in which an organism converts a carbohydrate such as starch or sugar into an alcohol or an acid for e.g. Yeasts perform fermentation to obtain energy by converting sugar into alcohol . the science of fermentation is known as zymology
  • 3. WHAT IS FERMENTATION • Fermentation is derived from latin verb fevere – to boil. • Fermentation has different meaning to biochemistry and industrial microbiologists. • Also employed in preservation to create lactic acid in sour food such as pickles, kimchi and yogurt.
  • 4. RANGE OF FERMENTATION PROCESS THERE ARE FIVE MAJOR GROUP OF COMMERCIAL IMPORTATNT FERMENTATION :- →Those that produce microbial cell as the product. →Those that produce microbial enzyme. →Those that produce microbial metabolite. →Those that produce recombinant product. →The transformation process.
  • 5. HISTORY OF FERMENTATION • The history of industrial microbiology can be divided into five phases : PHASES TIME PERIOD PHASE 1 UP TO 1900 ALCOHOL FERMENTATION PHASE 2 1900 – 1940 ANTIBIOTIC PHASE 3 1940-1964 SINGLE CELL PROTEIN PHASE 4 1964-1979 METABOLITE PRODUCTION PHASE5 1979 ONWARDS BIOTECHNOLOGY
  • 6. FERMENTATION PRO’S AND CON’S PRO’S CON’S Extended shelf life of food Can be unpredictable Easy digestion New (worse) Texture New (better) Flavour (Ex. Chocolate) New (worse) flavour (e.g. Mouldy bread taste terrible) Aerobic respiration Anaerobic respiration Release of energy from glucose or another organic substrate in the presence of oxygen Release of energy from glucose or another organic substrate in the absence of Oxygen PRODUCTS :- Co2 , H2O an energy produced PRODUCTS :- CO2 , energy and alcohol or various organic acid.
  • 7. TYPE OF FERMENTATION • SOLID STATE FERMENTATION • SUBMERGED FERMENTATION • ANAEROBIC FERMENTATION • AEROBIC FERMENTATION • IMMOBILIZED CELL FERMENTATION • IMMOBILIZED ENZYME BIOREACTORS
  • 8. • SOLID STATE FERMENTATION:- In SSF fermentation microbial growth and product formation occur at the surface of the solid substrate. For e.g. mushroom cultivation, starter culture. • SUBMERGED FERMENTATION:-It has four type (a)Batch (b)Fed Batch (c)Semi continuous (d)Continuous
  • 9. • ANAEROBIC FERMENTATION :- In ANF usually aeration is not needed but in some case initial aeration is required for inoculum build up . • AEROBIC PROCESS :- In Aerobic fermentation adequate amount of fermentation is required . In some case air is required about the 60 times of the volume of the medium . The sterilize air is generally sprayed or sparged into medium .
  • 10. FERMENTATION CONDITION • CARBON SOURCE • NITROGEN SOURCE • GROWTH FACTOR • PH • TEMPERATURE • TIME • YIELD
  • 11. VARIOUS MICROBIAL FERMENTATION • BACTERIAL FERMENTATION • YEAST FERMENTATION • MOULD AND ENZYME FERMENTATION
  • 12. BACTERIAL FERMENTATION # LACTIC ACID BACTERIA (PICKLE OR SAURKERAUT) # ACETIC ACID BACTERIA (VINEGAR) # CARBON DIOXIDE BACTERIA (EDAM, GOUDA, SWISS) # PROTEOLYTIC BACTERIA (COCOA, CHOCOLATE)
  • 13. YEAST FERMENTATION • GLUCOSE -> ETHYL ALCOHOL + CO2 • BEST TEMPERATURE 27C • OTHER SUGAR WILL FERMENT (MALTOSE , FRUCTOSE AND SUCROSE) • TOO MUCH SALT RUINS THE PROCESS
  • 14. MOULD AND ENZYME FERMENTATION • ENZYME IN MOULD CAN BE USEFUL:- - BREAKDOWN CELLULOSE THUS GRAINS EASIER TO CHEW. - ADD FLAVOUR AND TEXTURE TO CHEESE.
  • 15. EXAMPLES OF FERMENTATION • YOGURT • WINE • BEER • BREAD • IDLI • SAURKERAUT • KIMCHI • KANJI
  • 16. Lactose Lactic acid Bacteria -------------------------> Acid causes casein (milk protein) to denature and hold water into a semi-solid gel = yogurt (Milk sugar) How Does Milk Turn Into Yogurt? Lactic Acid
  • 17. WINE
  • 18. BEER • MALTING(STEEPING & KILNING) • MASHING • BOILING WORTS WITH HOPS • FERMENTATION • AGEING AND MATURING • FINISHING