食品科学 ›› 2010, Vol. 31 ›› Issue (20): 226-229.doi: 10.7506/spkx1002-6630-201020045

• 工艺技术 • 上一篇    下一篇

木瓜蛋白酶提取刺参消化道多糖

陈 涛1,2,张 健2,王茂剑2,*   

  1. 1.上海海洋大学食品学院
    2.山东省海洋水产研究所
  • 收稿日期:2010-06-30 修回日期:2010-09-21 出版日期:2010-10-25 发布日期:2010-12-29
  • 通讯作者: 王茂剑 E-mail:wangmaojian@126.com
  • 基金资助:

    国家海洋局海洋公益性行业重大科研专项(200805031);
    国家海洋局海洋经济规划科技推进平台与运作项目(国海科字([2007]219))

Papain Hydrolysis for the Extraction of Polysaccharides from Apostichopus japonicus Alimental

CHEN Tao1,2,ZHANG Jian2,WANG Mao-jian2,*   

  1. 1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 200000, China;
    2. Marine Fisheries Research Institute of Shandong Province, Yantai 264006, China
  • Received:2010-06-30 Revised:2010-09-21 Online:2010-10-25 Published:2010-12-29
  • Contact: WANG Mao-jian2 E-mail:wangmaojian@126.com

摘要:

采用酶解法提取仿刺参消化道多糖并进行初步性质测定。方法:通过木瓜蛋白酶酶解获得粗多糖,并综合考虑酶解时间、温度、加酶量的影响,获得优化的酶解条件;采用三氯醋酸法除蛋白,Sephacryl S-400 凝胶柱层析进行纯化,并测定其相对分子质量和硫酸基含量。结果:酶解最佳条件为加酶量10400U/g,酶解温度55℃,酶解时间6h,多糖得率8.11‰;纯化多糖为组分单一的酸性多糖,分子质量约25kD,硫酸基含量约为9.29%。

关键词: 仿刺参消化道多糖, 分离, 纯化

Abstract:

The enzymatic hydrolysis of Apostichopus japonicus alimental tract with papain was carried out for polysaccharide extraction, and the obtained polysaccharides were preliminarily characterized. Three hydrolysis parameters including hydrolysis time and temperature as well as enzyme amount were optimized. The relative molecular mass and sulfate group content of the purified product of the crude extract obtained after deproteinization by Sevag method and subsequent Sephacryl S-400 gel filtration chromatography were measured. Enzyme amount of 10400 U/g, hydrolysis temperature of 55 ℃and hydrolysis time of 6 h were found optimal, and the polysaccharide yield was 8.1‰ under these hydrolysis conditions. After Sephacryl S-400 column purification, an acidic polysaccharide with single composition was obtained, and its relative molecular mass might be 25 kD and its sulfate group content was approximately 9.29%.

Key words: Apostichopus japonicus alimental tract polysaccharide, extraction, purification

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