Preparation of Xanthan Gum-g-N-Vinylpyrrolidone by Radiation and adsorption property of phenol and polyphenol
文献类型: 外文期刊
第一作者: Li Yong-fu
作者: Li Yong-fu;Ha Yi-ming;Li Yan-jie;Wang Fang;Li Yong-fu;Tao Le-ren;Li Yan-jie
作者机构: Chinese Acad Agr Sci, Inst Agrofood Sci & Technol, Key Opening Lab Agr Prod Proc & Qual Control, Minist Agr, Beijing 100193, Peoples R China;Shanghai Univ Sci & Technol, Sch Med Instrument & Food Engn, Shanghai 200093, Peoples R China;Inner Mongolia Univ Technol, Chem & Engn Inst, Hohhot 010051, Peoples R China
关键词: Xanthan gum;N-Vinylpyrrolidone;Radiation;phenol;polyphenol
期刊名称:APPLICATION OF CHEMICAL ENGINEERING, PTS 1-3
ISSN: 1022-6680
年卷期: 2011 年 236-238 卷
收录情况: SCI
摘要: Simultaneous radiation grafting method (Co-60 gamma as radiation source) was used to prepare xanthan gum - graft - N-Vinypyrrolidone (XG-g-NVP). FT-IR spectra showed that grafting reaction occurred in NVP Vinyl part and lactam structure was retained. Thermo gravimetric analysis showed that, XG-g-NVP enhanced thermal stability of xanthan gum. XRD showed the crystallinity increased after grafting. At the grafting yield of 623%, XG-g-NVP had the maximum adsorption capacity of phenol and TP, the adsorption amount of which were 0.76 g/g and 2.85 g/g respectively. PH value had the different effects on the adsorption of phenol and tea polyphenols by XG-g-NVP.
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