State the role of each of the following in relation to the processing of cheese - Leaving Cert Home Economics - Question 5 - 2010
Question 5
State the role of each of the following in relation to the processing of cheese.
(i) lactic acid bacteria
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Worked Solution & Example Answer:State the role of each of the following in relation to the processing of cheese - Leaving Cert Home Economics - Question 5 - 2010
Step 1
lactic acid bacteria
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Answer
Lactic acid bacteria serve as a starter culture in cheese processing. They convert lactose, the sugar found in milk, into lactic acid. This fermentation process helps to lower the pH of the milk, which aids in flavor development and acts as a preservative by inhibiting the growth of spoilage microorganisms.
Step 2
rennet
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Answer
Rennet contains the enzyme rennin (or chymosin), which plays a crucial role in curd formation. This enzyme coagulates the milk protein caseinogen into curds, allowing the separation of whey and solid curds, which is essential for cheese production.
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