horny substance 中文意思是什麼
horny substance
解釋
角質-
Chitosan is the product of partial deacetylation of chitin they are the second most abundant polysaccharides in nature, comprising the horny substance in the exoskeletons of crabs, shrimp, and insects as well as fungi
背景和目的幾丁質是由n -乙酰葡萄糖胺組成的多糖,它是世界上除纖維素之外含量最豐富的天然多聚物。
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