食品工业科技2017，Vol.38Issue(21)：76-79,95,5.DOI:10.13386/j.issn1002-0306.2017.21.015
黄秋葵多糖提取及其絮凝性能
Extraction and flocculation properties of okra polysaccharide
摘要
Abstract
Three kinds of polysaccharide were extracted from okra fruit by ultrasonic technology using water,acid and alkali as soaking solvents.They were characterized by infrared spectroscopy and gel permeation chromatography.The results showed that three kinds of polysaccharide had almost the same composition and different molecular weight.Using kaolin suspensions as flocculating object,the flocculation properties of okra polysaccharide,ferric sulfate and ferric sulfate-okra polysaccharide composite flocculant were investigated.The results suggested that poor flocculation properties were exhibited by adding only okra polysaccharide as flocculant.Only the concentration of Fe3+ close to 0.1 mmol/L,ferric sulfate could reach flocculation rate of 90％.However,ferric sulfate-okra polysaccharide composite flocculant could reach flocculation rate of 90％ in a wide Fe3+ concentration range of 0.1～0.6 mmol/L,and the flocculation time was also short.The order of flocculation rate from high to low and flocculation time from short to long was okra polysaccharide extracted by alkaline,okra polysaccharide extracted by acid and okra polysaccharide extracted by water.关键词
黄秋葵多糖/硫酸铁/复合絮凝剂/絮凝率/絮凝时间Key words
okra polysaccharide/ferric sulfate/composite flocculant/flocculation rate/flocculation time分类
轻工纺织引用本文复制引用
王炜强,李本刚,罗振扬,周伟健,朱丽珺..黄秋葵多糖提取及其絮凝性能[J].食品工业科技,2017,38(21):76-79,95,5.基金项目
江苏省自然科学基金(BK20140967). （BK20140967）
