Extraction, Physiochemical Properties and Antibac- terial Activities of Polysaccharides from Auricularia auricular

• 作者: DENG Qinghua ZHANG Zhongzhen ZHAO Zhiyu
• 来源期刊: 中国食品科学：英文版
• 学科: 工学
• 关键词: 黑木耳多糖 理化性质 多糖提取 材料 最佳条件 抗菌活性 提取条件 正交试验
• 年，卷（期）: 2012,（1）
• 页码范围: 37-39
• 页数: 3页
• 分类号: TS251.65

摘要

[Objective] To explore the optimal conditions for extracting polysaccharide from Auricularia auricular,and to study its physiochemical properties and antibacterial activities.[Method] The extraction conditions for Auricularia auricular polysaccharides were optimized by orthogonal test,and its physiochemical characteristics and antagonistic activities on bacteria and molds were tested.[Result] The optimized condition was with sample to liquid ratio of 1:50,temperature of 90 ℃ and extraction time of 2.5 h.Under the optimized condition,the yield of polysaccharide was 7.3%,with polysaccharide content of 77.81 %.Containing aldose and amylase,the polysaccharides of Auricularia auricular was soluble in water.The inhibitory effect on bacteria was significantly stronger than on molds that the minimum diameter of inhibition zone for bacteria is 12.7 mm,while 7.9 mm for the molds.[Conclusion] This study provides scientific basis for the development and utilization of Auricularia auricular polysaccharides.