机构地区: 南京农业大学食品科技学院农业部农畜产品加工与质量控制重点开放实验室
出 处: 《食品科学》 2013年第17期1-4,共4页
摘 要: 以宜兴百合为原料,采用超声辅助热水法提取百合多糖。百合粗多糖经Sevag脱蛋白,透析后用DEAESepharose Fast Flow及Sephadex G-100色谱柱纯化,得到百合多糖组分LLPS-1、LLPS-2和LLPS-3。经考马斯亮蓝、紫外光谱及高效凝胶过滤色谱(HPGFC)检测,3种百合多糖不含蛋白及核酸,具有较高纯度。经HPGFC测定,3种百合多糖的重均分子质量分别是350.5、403.3kD和146.2kD。 Microwave-assisted hot-water extraction method was used to extract lily polysaccharides. Fractions LLPS-1, LLPS-2 and LLPS-3 were isolated from the aqueous polysaccharide extract and purified through deproteinizaiton by Sevag’s method, dialysis, DEAE-Sepharose Fast Flow chromatography and Sephadex G-100 column chromatography. Results from coomassie blue staining, UV and high-performance gel permeation chromatography (HPGPC) showed that the purified product contained neither protein or nucleic acid. The molecular weights of LLPS-1, LLPS-2 and LLPS-3 were 350.5, 403.3 kD and 146.2 kD, respectively.