Foodborne IllnessCâu 18 / 240
Clostridium botulinum is dangerous because it produces a toxin causing paralysis. Under which condition is it most likely to grow and produce toxin?
a.In anaerobic (oxygen-free) environments such as improperly canned foods, garlic-in-oil, or reduced-oxygen-packaged foods held warm
b.On dry crackers stored at room temperature
c.In highly acidic pickled foods below pH 4.6
d.On the surface of raw vegetables exposed to air
Giải thích
Clostridium botulinum thrives in anaerobic, low-acid, moist conditions such as improperly home-canned goods, untreated garlic-in-oil mixtures, and temperature-abused reduced-oxygen-packaged foods. Its toxin attacks the nervous system and can be fatal. Oxygen exposure, high acidity below pH 4.6, and dryness inhibit it, which is why proper canning and acidification matter.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
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