湖北农业科学 ›› 2021, Vol. 60 ›› Issue (15): 107-111.doi: 10.14088/j.cnki.issn0439-8114.2021.15.021

• 贮藏·加工 • 上一篇    下一篇

罗汉果多糖的羧甲基化修饰及抗氧化性能影响研究

白家峰1, 姚延超2, 郑毅3, 刘绍华1, 刘启斌1, 周奕1, 邢雨晴2, 杨雯静2, 许春平2   

  1. 1.广西中烟工业有限责任公司技术中心,南宁 530001;
    2.郑州轻工业大学食品与生物工程学院,郑州 450002;
    3.广西真龙实业有限责任公司技术中心,广西 贺州 542600
  • 收稿日期:2020-12-07 出版日期:2021-08-10 发布日期:2021-08-18
  • 通讯作者: 刘绍华(1962-),研究员,博士,主要从事烟草化学研究,(电子信箱)lshaohua18@163.com;许春平(1977-),教授,主要从事生物化工与烟草工程研究,(电子信箱)xuchunping05@163.com。
  • 作者简介:白家峰(1977-),男,广西宾阳人,高级工程师,主要从事烟草增香保润研究,(电话)0771-8098556(电子信箱)baijiafeng10@163.com。
  • 基金资助:
    国家自然科学基金联合项目(U1604176); 广西中烟合作项目(GXZYZZ2020C004)

Study on the effect of carboxymethylation of Siraitia grosvenorii polysaccharide on its antioxidant

BAI Jia-feng1, YAO Yan-chao2, ZHENG Yi3, LIU Shao-hua1, LIU Qi-bin1, ZHOU Yi1, XING Yu-qing2, YANG Wen-jing2, XU Chun-ping2   

  1. 1. Technical Center of China Tobacco Guangxi Industrial Co. Ltd.,Nanning 530001,China;
    2. College of Food and Biology Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China;
    3. Technical Center of Guangxi Zhenlong Industrial Co. Ltd.,Hezhou 542600,Guangxi,China
  • Received:2020-12-07 Online:2021-08-10 Published:2021-08-18

摘要: 为了研究罗汉果(Siraitia grosvenorii)多糖及其羧甲基化产物的结构和抗氧化性能,使用酶解法从罗汉果中提取了罗汉果多糖,并进行了羧甲基化修饰,然后对罗汉果多糖进行了GC-MS单糖分析和傅里叶红外光谱分析,并研究罗汉果多糖及其羧甲基化产物对1,1-二苯基-2-三硝基苯肼(DPPH)和羟基自由基(·OH)的清除能力。结果表明,罗汉果多糖提取率为3.64%,羧甲基化取代度为0.41。应用 GC/MS 技术对罗汉果多糖进行单糖组分分析,结合面积归一法得出罗汉果多糖由呋喃糖(3.53%)、阿拉伯糖(7.22%)、甘露糖(20.60%)、葡萄糖(38.03%)、木糖(0.73%)、半乳糖(28.65%)、半乳糖醛酸(0.51%)、葡萄糖醛酸(0.74%)组成。经过抗氧化活性测试可知,与修饰前比较,羧甲基化修饰后的罗汉果多糖具有更强的抗氧化性能。

关键词: 罗汉果(Siraitia grosvenorii), 多糖, 羧甲基化, 抗氧化性

Abstract: In order to study the structure and antioxidant properties of Siraitia grosvenorii polysaccharide and its carboxymethylated products, Siraitia grosvenorii polysaccharide was extracted from Siraitia grosvenorii using enzymatic hydrolysis method and modified by carboxymethylation. GC-MS monosaccharide analysis was carried out and Fourier Infrared Spectroscopy. The scavenging ability of polysaccharides of Siraitia grosvenorii and its carboxymethylation products on 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) and hydroxyl radical (·OH) was also studied. The results showed that the extraction rate of Siraitia grosvenorii polysaccharide was 3.64, and the degree of carboxymethylation substitution was 0.41. GC/MS technology was used to analyze the monosaccharide composition of Siraitia grosvenorii polysaccharides. Combined with the area normalization method, Siraitia grosvenorii polysaccharides were obtained from furanose (3.53%), arabinose (7.22%), mannose (20.60%), glucose (38.03%), xylose (0.73%), galactose (28.65%), galacturonic acid (0.51%), glucuronic acid (0.74%). Compared with that before modification, the polysaccharides modified by carboxymethylation had stronger antioxidant properties.

Key words: Siraitia grosvenorii, polysaccharide, carboxymethylation, antioxidant

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