Monday, August 20, 2012

STPM Biology - chapter 5 (old syllabus) chapter 5 (new syllabus): Revision essay question 4

4. State 5 uses of fermentation in the industry.

Answer

Organism
Product of fermentation
Importance
Bacteria (acetobacter)
Acetic acid
Production of vinegar
Bsacteria (lactobacillus)
Lactic acid
Coagulate milk production to form curd or yoghurt
Yeast (saccharomyces)
Ethanol
Production of wine and beer
Yeast(saccharomyces)
Carbon dioxide gas
Helps dough rise in bread making
Bacteria (propionibacterium)
Propionic acid and carbon dioxide
Produces the flavor and large holes in cheese.

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