HE Xi-zhen,NIU Yan-ning,JIN Ming-fei,et al.Characterization and Antioxidation Study of Different Molecular Weight of Soluble Soybean Polysaccharides[J].Soybean Science,2016,35(05):805-809.[doi:10.11861/j.issn.1000-9841.2016.05.0805]
不同分子量大豆多糖的表征和抗氧化研究
- Title:
- Characterization and Antioxidation Study of Different Molecular Weight of Soluble Soybean Polysaccharides
- 文献标志码:
- A
- 摘要:
- 以酸提大豆多糖为原料,通过控制降解条件得到4种不同分子量的大豆多糖样品,分子量分别为550,347,285和21 kDa。对4种多糖进行了傅里叶红外(FT-IR)分析和X射线衍射(XRD)分析,并分别测定了4种多糖对DPPH自由基、羟基自由基的清除能力以及还原能力的大小,结果表明:4种大豆多糖都有一定的抗氧化活性,但抗氧化活性高低有所不同,分子量为285 kDa的大豆多糖对自由基的清除能力最强,还原能力最强,分子量为21 kDa的大豆多糖对自由基的清除能力最弱,还原能力最弱。
- Abstract:
- Four different molecular-weight soluble soybean polysaccharides were prepared by controlling the degration condition, with the molecular weights 550, 347, 285 and 21 kDa, respectively. The structures of them were identified by Fourier transform infrared spectrometer (FTIR) and X.Ray Diffraction (XRD) Antioxidant activities of four SSPS were evaluated in vitro by DPPH free radical scavenging capacity, hydroxyl free radical scavenging and total reducing power. The results showed that all of them had antioxidant activities. The SSPS-H with molecular weight of 285 kDa had the strongest antioxidant activities in all antioxidant systems, while the SSPS-CH with molecular weight of 21 kDa performed the worst.
参考文献/References:
[1]Furuta H, Takahashi T, Tobe J, et al. Extraction of water-soluble soybean polysaccharides under acidic conditions[J]. Bioscience Biotechnology and Biochemistry, 1998, 62(12): 2300-2305.
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备注/Memo
基金项目:国家自然科学基金(31170920)。第一作者简介:何喜珍(1989-),女,硕士,主要从事天然多糖应用研究。E.mail: hexizhen2010@163.com。通讯作者:高红亮(1972-),男,博士,副教授,主要从事食品生物技术研究。E-mail: hlgao@bio.ecnu.edu.cn。