Topic content:
Food safety is related to people's health. The following practices are correct ()
A. Wash the moldy rice and eat it
B. Add excessive sodium nitrite to cooked meat products
C. Soak aquatic products with formaldehyde solution to extend the shelf life
D. Steaming steamed bread with baking soda can make it soft and delicious
Best answer:
A、 Mouldy rice contains toxic aflatoxin, which cannot be eaten even after cleaning; Therefore, this practice will endanger human health
B、 Sodium nitrite is a kind of commonly used preservative. Although it can keep meat delicious, excessive consumption will cause poisoning, so this practice will endanger human health
C、 Formaldehyde is toxic and can destroy the structure of human protein and denature it, so this practice will endanger human health
D、 The baking soda (sodium bicarbonate) added when making steamed bread can react with the acid produced by fermentation to produce carbon dioxide, which can be decomposed into carbon dioxide gas when heated, making the steamed bread loose and porous; Therefore, this practice will not endanger human health
Therefore, D
Answer analysis:
There is no explanation for this question
Test core:
Food safety refers to that the food is non-toxic and harmless, meets the proper nutritional requirements, and does not cause any acute, subacute or chronic harm to human health. According to the definition of the World Health Organization, food safety is a "public health problem of the impact of toxic and harmful substances in food on human health". Food safety is also an interdisciplinary field that specializes in ensuring food hygiene and food safety, reducing disease risks and preventing food poisoning in the process of food processing, storage and marketing.