亚氯酸钠法高效提取桑黄多糖的机理  

Mechanism of high efficiency extraction of polysaccharides from Sanghuangporus vaninii by sodium chlorite system

作　　者：吕国英[1] 姚生良 张作法[1] LüGuoying;Yao Shengliang;Zhang Zuofa(Institute of Horticulture,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China;Haining Hongxin Agricultural Biotechnology Co.,Ltd.,Haining 314423,China)

机构地区：[1]浙江省农业科学院园艺研究所,浙江杭州310021 [2]海宁宏欣农业生物科技有限公司,浙江海宁314423

出　　处：《食药用菌》2022年第6期456-459,473,共5页Edible and Medicinal Mushrooms

基　　金：浙江省自然科学基金(LQY20C150001);海宁市科技计划农业项目(2022029)。

摘　　要：为考察亚氯酸钠氧化体系提取桑黄多糖得率高的原因,对提取多糖后的残渣,通过扫描电镜、红外光谱、固体核磁,测定其微观形态和结构的变化,并结合几种纤维素的变化,初步探明机理为:经过亚氯酸钠氧化体系处理后,桑黄残渣表面变粗糙,结构更松散,容易溶出可溶性多糖,提取多糖后的残渣中几种纤维素含量变化明显,且均具备甲壳素的结构特征。In order to investigate the reason for the high extraction rate of Sanghuangporus vaninii polysaccharide in the sodium chlorite oxidation system, the changes of its microscopic morphology and structure were determined by scanning electron microscopy(SEM), fourier transform infrared spectrum(FT-IR) and solid nuclear magnetic resonance(13C NMR) for the fungus residue after the extraction of polysaccharide. The changes of several cellulose contents were measured. The results showed that the surface of Sanghuangporus vaninii became rougher and its structure became more loose after the treatment of sodium chlorate oxidation system, which made the soluble polysaccharide more easily dissolved. The contents of several kinds of cellulose in the residue changed obviously,but they all had the structural characteristics of chitin.

关 键 词：杨树桑黄 亚氯酸钠 多糖提取 残渣 微结构 特征 

分 类 号：S646[农业科学—蔬菜学] R282[农业科学—园艺学]