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环糊精
EntityQ40417805· pop 24· linked from 106 articles

Also known as cyclodextrines, cycloamyloses, cyclodextrins

thumb|upright=2.0|Chemical structure of the three main types of cyclodextrins. Cyclodextrins are a family of cyclic oligosaccharides, consisting of a macrocyclic ring of glucose subunits joined by α-1,4 glycosidic bonds. Cyclodextrins are produced from starch by enzymatic conversion. They are used in food, pharmaceutical, drug delivery, and chemical industries, as well as agriculture and environmental engineering.

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Wikidata facts

Subclass of
oligosaccharide
Has part
hydrogen
Show 1 more fact
Commons category
Cyclodextrins
Sources (2)

via Wikidata · CC0

Article · 中文

环糊精是由6个或更多的吡喃葡萄糖分子形成的环状低聚糖的总称,由作用于淀粉所产生。 * 常见的环糊精有α-环糊精,β-环糊精,γ-环糊精,δ-环糊精四种,组成它们的吡喃葡萄糖分子数为6,7,8,9。它们可用有机溶剂沉淀分离。环糊精在酸性条件下易水解。 * 环糊精的分子形状如同轮胎,各葡萄糖残基的C-2和C-3原子上的二级羟基位于环糊精圆环的分子一端,直径稍大,而C-6上的一级羟基位于另一端,直径稍小。环糊精分子内部为一个呈“V”字型的疏水性空穴,内径大小为0.5~1.0nm,可对苯环等进行包接形成复合物。 * 环糊精用于食品、香料、医药、等方面,也用于模拟酶研究。还可以用作核磁共振的等。

Abstract from DBpedia / Wikipedia · CC BY-SA

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