中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 酸降解水溶性银耳多糖及抗氧化作用研究 食品科学 2009,30 (13) 93-96
Position: Home > Articles > Antioxidations of Acid-degrade Water-soluble Polysaccharides from Tremella fuciformis FOOD SCIENCE 2009,30 (13) 93-96

酸降解水溶性银耳多糖及抗氧化作用研究

作  者：
吴琼;代永刚;高长城;宁正祥
单  位：
长春大学农产品加工重点实验室;华南理工大学轻工与食品学院;吉林省农业科学院农产品加工研究中心
关键词：
银耳多糖;降解;抗氧化
摘  要：
采用盐酸降解法对水溶性银耳多糖进行降解,得到低分子水溶性银耳多糖。通过对DPPH自由基清除作用,表征低分子水溶性银耳多糖抗氧化活性的变化。当溶液黏度为16.5～9.8mPa·s时,低分子银耳多糖的平均相对分子质量在2～10kD范围内,抗氧化活性高于水溶性银耳多糖。而当平均相对分子质量>10kD或平均相对分子质量<2kD时,抗氧化活性较低。
译  名：
Antioxidations of Acid-degrade Water-soluble Polysaccharides from Tremella fuciformis
作  者：
WU Qiong1,DAI Yong-gang2,GAO Chang-cheng1,NING Zheng-xiang3 (1. Key Laboratory of Agricultural Products Processing, Changchun University, Changchun 130022, China; 2. Research Center of Agricultural Products Processing, Jilin Academy of Agricultural Sciences, Changchun 130033, China ; 3. College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China)
关键词：
Tremella polysaccharide;degradation;antioxidation
摘  要：
The water-soluble polysaccharides extracted from Tremella fuciformis were degraded into low-molecular-weight polysaccharides using hydrochloric acid under different conditions. Then the antioxidant effects of the low-molecular-weight Tremella fuciformis polysaccharides (LTPs) obtained were investigated via the determination of DPPH radical scavenging activity in vitro. The results indicated that after the degradation in 0.1 mol/L hydrochloric acid solution at 50 ℃ for 0.5-3 h, the viscosity of the initial polysaccharides solution declined gradually from 17.8 mPa · s to 16.5-9.8 mPa · s, and the average molecular weights (MWs) of the LTPs were within the range of 2-10 kD and their antioxidant activity was higher than that of the undegraded water-soluble Tremella fuciformis polysaccharides . However, the LTPs with the average MW of higher than 10 kD or less than 2 kD, had weak antioxidant activity.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46