摘要
研究了魔芋中硒的赋存形态、分布及含硒多糖的提取分离技术。用不同的浸提液和浸提方法(热水、稀酸、稀碱、超声波)提取魔芋中的多糖,用水作为提取剂提取魔芋中的蛋白质,并用原子吸收法测定它们各组分中含硒量。魔芋中的总硒含量为2.540μg/g,而多糖硒的含量为2.241μg/g,占了总硒的88.23%,说明魔芋中的多糖硒为硒的主要赋存形态。同时通过实验可知,魔芋多糖的最佳提取剂为稀碱。
The combined forms and distribution of selenium as well as polysaccharide extraction technology were studied in this paper, Different solvents and methods were used to extract polysaccharide and protein in A morphophallus konjac. Selenium contents were detected by atomic absorption spectrometer. The result showed that the total selenium in A morphallus konjac was 2.540 μg/g, and the selenium in polysaccharide （2.241 μg/g） was the main form storing in A morphophallus konjac, accounting for 88.23 % of total selenium. It was concluded that the best extract solvent of polysaccharide was dilute alkali.
出处
《安徽农业科学》
CAS
北大核心
2007年第11期3364-3364,3405,共2页
Journal of Anhui Agricultural Sciences
基金
湖北省教育厅重点项目(D200529005)
关键词
魔芋
硒蛋白
硒多糖
赋存形态
A morphophallus konjac
Selenoprotein
Selenium-polysaccharide
Combined form
