Chitosan, a linear polysaccharide, is obtained by chitin N deacetylation. Its β( 1 4) glucosidic bond is not stable and breaks easily in acid condition. In this study, chitosan of different molecular weights ( MW) was prepared by acetic acid degradation. 几丁聚糖是由几丁质脱乙酰而来的一种线性高分子多糖,其β-1,4糖苷键在酸性条件下不稳定,易发生长链的水解。
Anthocyanin, a kind of important soluble flavonoid compound including glycosylation derivates of anthocyanidin through combining different monosaccharide with glucosidic bond, can be produced by a wide range of flowering plants. 花色素苷(anthocyanin)广泛存在于开花植物中,是一类重要的水溶性的类黄酮化合物,是花色素(anthocyanidin)与各种单糖通过糖苷键结合形成的糖基化衍生物的总称。