| 低分子量κ-卡拉胶马来酰基化衍生物的制备及抗氧化活性的研究 |
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| 引用本文： | 孙涛,陶慧娜,卢克祥,周冬香,毛芳,姚倩.低分子量κ-卡拉胶马来酰基化衍生物的制备及抗氧化活性的研究[J].天然产物研究与开发,2009,21(6):1028-1031. |
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| 作者姓名： | 孙涛 陶慧娜 卢克祥 周冬香 毛芳 姚倩 |
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| 作者单位： | 上海海洋大学食品学院海,上海,201306 |
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| 基金项目： | 上海市教育委员会科研项目，上海市重点学科建设项目 |
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| 摘 要： | 对κ-卡拉胶进行氧化降解,得到分子量不同的两种卡拉胶低聚糖,并分别制成四丁基铵盐,进而与马来酸酐进行酰化,制得两种不同分子量的卡拉胶马来酰基化衍生物.对产物进行IR表征,并对产物的抗氧化性能进行测试.结果表明:κ-卡拉胶在马来酰基化以后对超氧阴离子自由基O_2以及过氧化氢的清除能力都大大增强了.
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| 关 键 词： | κ-卡拉胶 氧化降解 马来酰基 抗氧化活性 |
Preparation and Antioxidant Activity of Low-molecular-weight Carrageenans and Their Maleyol Derivatives |
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| SUN Tao,TAO Hui-na,LU Ke-xiang,ZHOU Dong-xiang,MAO Fang,YAO Qian.Preparation and Antioxidant Activity of Low-molecular-weight Carrageenans and Their Maleyol Derivatives[J].Natural Product Research and Development,2009,21(6):1028-1031. |
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| Authors: | SUN Tao TAO Hui-na LU Ke-xiang ZHOU Dong-xiang MAO Fang YAO Qian |
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| Abstract: | Two low-molecular-weight(LMW)κ-carrageenans were prepared by oxidative degradation of κ-carrageenans involving hydrogen peroxide.The tetrabutylammonium salts(TBA)were prepared by tetrabutylammonium,then aeylated with maleic anhydride to abtain maleoyl derivatives of LMW κ-carrageenans.The products were characterized by FI-IR.The antioxidant activities of LMW-KC and its derivative were studied.The results showed that the scavenging activities of acylated derivatives for superoxide anion and H_2O_2 were increased apparently. |
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| Keywords: | K-carrageenan oxidation degradation maleyol antioxidant activity |
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