大家普遍认为,越新鲜的食物营养越好,但事实并非如此。鲜木耳就含有一种卟啉类光感物质,食用后若被太阳照射可引发皮肤瘙痒、水肿、严重的可致皮肤坏死。若水肿出现在咽喉黏膜,会出现呼吸困难。而干木耳是经曝晒处理的成品,在曝晒过程中大部分卟啉会分解,加上食用前经水浸泡,剩余毒素会溶于水中,就会使水发木耳无毒。因此,吃木耳时,切不可一味贪“鲜”。 It is generally agreed that the better fresh food nutrition, but not the case. Fresh fungus contains a kind of porphyrin photosensitive substances, if consumed by the sun after eating can cause skin itching, edema, severe skin necrosis can cause. If edema in the throat mucosa, there will be breathing difficulties. The dry fungus is the sunburn finished product, most of the porphyrin in the exposure process will be decomposed, with water soaked before eating, the remaining toxins will be dissolved in water, it will make water fungus non-toxic. Therefore, eat mushrooms, must not blindly greedy “fresh”.