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Question
Which enzyme is responsible for oxidation of phenolic compounds causing enzymatic browning?
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Answer
C. Polyphenol oxidase (PPO)
Polyphenol oxidase (PPO) catalyzes the oxidation of phenolic compounds into quinones, which polymerize to form brown pig...
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Question
Which food additive is known to bleach anthocyanin pigments, resulting in loss of their red-purple color?
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Answer
B. Sulfur dioxide (SO₂)
Sulfur dioxide (SO₂) and sulfites (e.g., sodium sulfite, sodium metabisulfite, potassium metabisulfite) are commonly use...
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Question
Soybean is a rich source of which flavonoid class?
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Answer
B. Genistein, Daidzein, Glycitein
Soybean is the richest dietary source of isoflavones, a subclass of flavonoids. The major soybean isoflavones are:...
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