FOOD CHEMISTRY
FOOD ADDITIVES AND PRESERVATIVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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salt
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sugar
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onion
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garlic
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Detailed explanation-1: -Sugar and salt are known as class I preservatives, which are also known as natural preservatives. When used in high concentrations, it binds water and makes its availability low for microorganisms.
Detailed explanation-2: -Natural preservatives include rosemary and oregano extract, hops, salt, sugar, vinegar, alcohol, diatomaceous earth and castor oil.
Detailed explanation-3: -Sugar helps preserve the color, texture and flavor of the food. The sugar in jams and jellies helps the gel to form, and increases the flavor. When large amounts of sugar are used in a recipe, the sugar also acts as a preservative by inhibiting microbial activity; thus, recipes should not be modified or adapted.
Detailed explanation-4: -Nisin and natamycin are preservatives produced by microorganisms. Nisin inhibits the growth of some bacteria, while natamycin is active against molds and yeasts.