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如何去除蔬菜、水果中的残留农药?常用方法是清水浸泡洗涤,能去皮的尽量去皮,80%的表面残存农药都可洗去。怎样识别水产品中是否掺入了甲醛?水产品中如果掺入了甲醛,产品摸起来质地较硬、不柔软、弹性差。有些食品虽然超过保质期,但看起来没有变质能不能食用?不能。因为有些食品变质后感官性状变化不明显(如被变形杆菌污染的食物),看起来挺好,但实际上已经变质。到底需不需要补钙?全国居民营养膳食调查结果显示,我国居民钙的摄入量仅达到推荐量标准的50%左右,适量补钙是有必要的。
How to remove vegetables, fruits, pesticide residues? Common method is to soak in water washing, peeled as much as possible to peel, 80% of the surface of the remaining pesticides can be washed away. How to identify whether the incorporation of formaldehyde in aquatic products? If the incorporation of formaldehyde in aquatic products, the product feels hard texture, not soft, poor flexibility. Although some foods over the shelf life, but it looks no deterioration can not eat? Because some of the food metamorphosis sensory traits inconspicuous (such as Proteus contaminated food), looks good, but in fact has deteriorated. In the end need to do not need calcium? National residents dietary survey results show that China’s resident calcium intake reached the recommended level of only about 50%, appropriate calcium is necessary.