baker's yeast - ankit sabharwal

BAKER’S YEAST:

BAKER’S YEAST ”...BREAD’ S BEST FRIEND..”

CONTENTS:

CONTENTS OVERVIEW PRODUCTION YEAST TESTING TYPES OF BAKER’S YEAST COMPANIES APPLICATIONS CURRENT RESEARCH REFERENCES

OVERVIEW:

OVERVIEW

PRODUCTION:

PRODUCTION

STAGES:

STAGES Stage 1 :- molasses and other raw material preparation Stage 2 :- culture or seed yeast preparartion Stage 3 :- fermentation and harvesting Stage 4 :- filtration and packaging

STAGE 1:

STAGE 1 Sugars- basic carbon and energy source Raw materials- beet and cane molasses, contains fermentable sugars , vitamins , salts, minerals. Supply of N 2 in form of NH 3 and phosphate in form of phosphoric acid.

STAGE 2 :

STAGE 2

STAGE 3:

STAGE 3

STAGE 4:

STAGE 4

YEAST TESTING:

YEAST TESTING Strain purity and trueness to type are carefully controlled Strict adherence to sanitary practices and GMP rules of the FDA are required Complete microbiological testing is conducted Tested for gassing activity - gassing a standardized dough formula at a constant-temperature in a precision gassing apparatus that measures the amount of carbon dioxide produced over a fixed amount of time.

TYPES OF BAKER’S YEAST:

TYPES OF BAKER’S YEAST Cream yeast :- Suspension of yeast cells in liquid, siphoned off from the growth medium. Used in industrial bakeries with special high-volume dispensing and mixing equipment. 2 . Compressed yeast :- Cream yeast with most of the liquid removed. Soft solid, beige in color. Highly perishable. More tolerant of low temperatures

3. Active dry yeast :- Choice for situations where long travel or uncontrolled storage conditions are likely. Consists of coarse oblong granules of yeast, with live yeast cells encapsulated in a thick jacket of dry, dead cells with some growth medium. More sensitive. 4. Instant yeast :- Similar to active dry yeast, but has smaller granules with substantially higher percentages of live cells. more perishable. Can usually be added directly to all but the driest doughs . Has a small amount of ascorbic acid added as a preservative. for example, LeSaffre's "SAF Instant Gold":

3 . Active dry yeast :- Choice for situations where long travel or uncontrolled storage conditions are likely. Consists of coarse oblong granules of yeast, with live yeast cells encapsulated in a thick jacket of dry, dead cells with some growth medium. More sensitive. 4. Instant yeast :- Similar to active dry yeast, but has smaller granules with substantially higher percentages of live cells. more perishable. Can usually be added directly to all but the driest doughs . Has a small amount of ascorbic acid added as a preservative. for example, LeSaffre's "SAF Instant Gold"

Slide 21:

ACTIVE DRY YEAST INSTANT YEAST

5. Rapid-rise yeast :- provide greater carbon dioxide output to allow faster rising at the expense of shortened fermentation times. reduces the flavor potential of the finished product. 6. Flake yeast :- dead yeast, sold primarily as a nutritional supplement. It has little to no leavening power.:

5. Rapid-rise yeast :- provide greater carbon dioxide output to allow faster rising at the expense of shortened fermentation times. reduces the flavor potential of the finished product. 6. Flake yeast :- dead yeast, sold primarily as a nutritional supplement. It has little to no leavening power.

Slide 23:

RAPID-RISE YEAST FLAKE YEAST

COMPANIES:

COMPANIES

1. Cm yeast ,UK 2. Crown yeast limited , UK 3. AB mauri , VIETNAM 4. Dalian xinghe yeast co Ltd. CHINA 5. Pakamaya , TURKEY 6. River mills bakeries Ltd. , NZ 7. Multi pack systems pvt. Ltd. , INDIA :

1. Cm yeast ,UK 2. Crown yeast limited , UK 3. AB mauri , VIETNAM 4. Dalian xinghe yeast co Ltd. CHINA 5. Pakamaya , TURKEY 6. River mills bakeries Ltd. , NZ 7. Multi pack systems pvt. Ltd. , INDIA

APPLICATIONS:

APPLICATIONS

CURRENT RESEARCH:

CURRENT RESEARCH Potential use of non-pathogenic baker's yeast as a promising, natural therapy for cancer. Baker's yeast the supplier of vitamin B . Huntington's disease research using baker's yeast. Baker's yeast may help to alleviate Parkinson's disease. Used to study mechanisms underlying disease pathology.

REFERNCES:

REFERNCES 1. DISCOVERY NEWS 2. OMICS GATEWAY 3. YEAST TIP PLANET 4. PURDUE UNIVERSITY 5. DAKOTA INDUSTRIES 6. COFALEC GA CORP. 7. LALLEMAND LTD. 8. DUBLIN CITY UNIVERSITY

ANY QUESTIONS ???:

ANY QUESTIONS ??? Made by :- ANKIT SABHARRWAL Roll no.- 0421601308