香菇多糖反渗透浓缩工艺的研究  

Research on Reverse Osmosis Ultrafiltration of Lentinus Polysaccharides

作　　者：孔静[1] 游丽君[1] 彭川丛 赵谋明[1] 马方励 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640 [2]无限极(中国)有限公司,广东广州510665

出　　处：《现代食品科技》2011年第7期791-794,共4页Modern Food Science and Technology

基　　金：广东省产学研合作项目(2010A090200041);企业横向项目"多糖的提取;浓缩及新工艺研究"资助

摘　　要：采用反渗透膜浓缩工艺对香菇多糖提取液进行浓缩,分析进膜压力、料液浓度和进膜温度对浓缩工艺的影响,并比较了反渗透浓缩和真空浓缩两种方法的差异。结果表明,在进膜压力20 MPa、多糖浓度6.48 mg/mL、进膜温度30℃时能取得较好的浓缩效果。反渗透膜浓缩粗多糖得率较真空浓缩高,且DPPH自由基清除能力优于真空浓缩的产品。Reverse osmosis ultrafiltration process was used in this paper to concentrate the lentinus extraction.Effects of pressure,concentration and temperature on the speed of reverse osmosis were studied.Results showed that the highest lentinus polysaccharides concentration of 6.48mg/mL can be obtained by using reverse osmosis under the conditions of 20MPa and 30℃.Compared with vacuum concentration methods,the reverse osmosis methods showed both higher yield of polysaccharide and DPPH radical scavenging activity.

关 键 词：香菇多糖 反渗透 膜浓缩 真空浓缩 抗氧化活性 

分 类 号：TQ461[化学工程—制药化工]