湖北农业科学 ›› 2022, Vol. 61 ›› Issue (8): 115-119.doi: 10.14088/j.cnki.issn0439-8114.2022.08.023

• 贮藏·加工 • 上一篇    下一篇

山药多糖的氨取代修饰和保润性能研究

白家峰1, 熊亚妹2, 刘远上3, 孙懿岩2, 刘绍华1, 贾学伟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.河北中烟工业有限责任公司,石家庄 050000
  • 收稿日期:2021-02-07 出版日期:2022-04-25 发布日期:2022-05-12
  • 通讯作者: 许春平(1977-),男,河南焦作人,教授,主要从事生物化工与烟草工程研究,(电话)0371-86608679(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); 河南省科技创新团队计划(20IRTSTHN022)

Study on ammonia substitution modification and moisture retention properties of yam polysaccharides

BAI Jia-feng1, XIONG Ya-mei2, LIU Yuan-shang3, SUN Yi-yan2, LIU Shao-hua1, JIA Xue-wei2, 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. China Tobacco Hebei Industrial Co.,Ltd., Shijiazhuang 050000,China
  • Received:2021-02-07 Online:2022-04-25 Published:2022-05-12

摘要: 通过碱提法提取山药多糖,对其进行氨取代修饰,采用GC-MS、红外吸收光谱、光散射和核磁共振波谱分析其化学结构和分子构象,并对山药多糖、氨取代山药多糖与丙二醇的保润性能进行了对比。结果表明,①山药多糖是一种杂多糖,主要由葡萄糖(86.1%)、甘露糖(9.3%)、半乳糖(7.2%)组成。糖链残基组成主要有→4)-Glcp-(1→、→6)-Glcp-(1→、→6)-Galp-(1→、→3)-Manp-(1→、→2,3)-Manp-(1→和端基Glcp-(1→。②通过一维核磁分析出山药多糖为α-1,4-葡聚糖。③山药多糖的摩尔质量为1.747×105 g/mol,远大于氨取代山药多糖的摩尔质量1.115×104 g/mol,另外经过氨基化修饰后,多糖的多分散系数增加,摩尔质量分布变宽。④山药多糖和氨取代山药多糖都有一定的保润效果,且氨取代山药多糖的保润性能更好。

关键词: 山药多糖, 氨取代, 保润性能, 结构分析

Abstract: The yam polysaccharide was extracted by alkaline extraction and then subjected to ammonia substitution modification. The chemical structure and molecular conformations were analyzed by GC-MS analysis,fourier transform infrared spectroscopy, light scattering analysis and nuclear magnetic resonance spectroscopy. And the moisture retention properties of yam polysaccharides, ammonia-substituted yam polysaccharides and propylene glycol were compared. The results showed that yam polysaccharide was a heteropolysaccharide, mainly composed of glucose(86.1%), mannose(9.3%), galactose(7.2%). The chemical chain was mainly composed of→4)-Glcp-(1→、→6)-Glcp-(1→、→6)-Galp-(1→、→3)-Manp-(1→,→2,3)-Manp-(1→ and terminal Glcp-(1→. The yam polysaccharide could be analyzed as α-1, 4-glucan by 1-D NMR. The molecular weight of the yam polysaccharide was 1.747×105 g/mol, which was much larger than the molecular weight of ammonia-substituted yam polysaccharide 1.115×104 g/mol. In addition, after the aminogenization modification, the polydispersion coefficient of the polysaccharide increased and the molecular weight distribution widened. The yam polysaccharide and ammonia-substituted yam polysaccharide had a certain moisturizing effect, and the moisturizing performance of ammonia-substituted yam polysaccharide was better.

Key words: yam polysaccharide, ammonia substitution, moisture retention property, structural analysis

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