中国食品学报2017，Vol.17Issue(12)：50-57,8.DOI:10.16429/j.1009-7848.2017.12.007
辐射接枝共聚物XG-g-NVP对葡萄籽原花青素的吸附和解吸性能
Adsorption and Desorption Performance on Grape Seed Proanthocyanidins of Xanthan Gum-g-N-vinylpyrrolidone Prepared by Irradiation
摘要
Abstract
Xanthan gum-g-N-vinylpyrrolidone graft copolymer (XG-g-NVP)was prepared by,irradiation,then to study the different factors of proanthocyanidins solution on the adsorption and desorption performance.The results showed that the copolymer had the better proanthocyanidins adsorption capacity when the grafting ratio was 557％,the adsorption time of 60 min,adsorbent amount of 100 mg and the pH of solution was acidic.The adsorption process was spontaneously occurred,and the adsorption behavior was consistent with both the second orderrate equation and Freundlich isotherm.The molecular structure and morphology before and after adsorption were analyzed and confirmed by IR and ESM.The proanthocyanidins had the better desorption capacity when desorption time and ethanol concentrations were 40 min and 65％.The results suggested that XG-g-NVP copolymer could be used as a highly effective adsorbent for grape seed proanthocyanidins.关键词
XG-g-NVP/原花青素/吸附/解吸Key words
XG-g-NVP/proanthocyanidins/adsorption/desorption引用本文复制引用
丁文博,李彦杰,哈益明,包亚莉,刘培玲..辐射接枝共聚物XG-g-NVP对葡萄籽原花青素的吸附和解吸性能[J].中国食品学报,2017,17(12):50-57,8.基金项目
国家自然科学基金项目(31260370) （31260370）
内蒙古自然科学基金项目(2012MS1202) （2012MS1202）
