Porous cornstarch was prepared by synergism of the α-amylase and gluamaylase and employed as a carrier to absorb tea polyphenol(TP), the factors affecting the adsorption were optimized by using the orthogonal experimental design. Studying on the adsorption thermodynamic characteristic and fitting the isotherms with Langmuir equation and Freundlich equation, it turned out that the adsorption isotherm was well represented by the Langmuir equation (R2>0.99). The different heat of adsorption according to the Langmuir adsorption isotherm conformed to the hydrogen bonding key range. Furthermore, the investigation on the antioxidative activity of the complex by measuring the scavenging capabilities on DPPH and ABTS free radicals showed that the complex possessed a good antioxidant activity rised with the concentration of TP, and the auto-oxidation rates of TP turned to a significant slower rate after TP was adsorbed on the porous starch.
LUO Huimin
,
NING Min
,
XU Yingbo
,
WANG Chenghui
,
DU Xianfeng
. Adsorption Properties of Porous Starch on Tea Polyphenols and Antioxidative Capacity of the Complex[J]. Journal of Tea Science, 2015
, 35(5)
: 473
-480
.
DOI: 10.13305/j.cnki.jts.2015.05.011
[1] 高永贵, 杨贤强, 周树红. 试论茶多酚清除生物自由基的高效性[J]. 天然产物研究与开发, 1999, 11(2): 82-86.
[2] 郑笑男. 茶多酚抗氧化功能及保护实验性肝损伤作用的研究进展[J]. 临床合理用药杂志, 2011, 29: 126-128.
[3] 刘寅. 酵母对茶多酚吸附性能的研究[D]. 无锡: 江南大学, 2010: 1-32.
[4] 朱兴一, 刘晓平. 竹叶纤维吸附法制备茶多酚的研究[J]. 浙江工业大学学报, 2013, 41(6): 605-609.
[5] 王兆丰, 张继. 酸性白土吸附茶多酚中咖啡因的工艺研究[J]. 中成药, 2013, 35(1): 193-197.
[6] 杨晓慧. 交联PVP凝胶吸附茶多酚的研究[J]. 西安文理学院学报: 自然科学版, 2005, 8(4): 43-46.
[7] 尹卓林. 多孔淀粉的制备及其吸附应用研究[D]. 济南: 齐鲁工业大学, 2013: 13-17.
[8] 中华人民共和国商业部. 茶多酚的测定[S]. 北京: 中国标准出版社, 2008: 1-5.
[9] 吴培龙, 张黎明, 杨鑫, 等. 玉米多孔淀粉对茶多酚的吸附性能研究[J]. 现代食品科技, 2010(9): 938-941.
[10] 傅献彩, 沈方霞, 姚天扬, 等. 物理化学:下册[M]. 4版. 北京: 高等教育出版社, 2005: 314-317.
[11] 王彩荣. 大孔交联酰胺类聚合物对苯酚氢键吸附机理的研究[J]. 化学通报, 2012, 75(2): 180-183.
[12] 许舒雯, 彭丽华, 陈龙胜, 等. 黄山贡菊水提液的抗氧化活性及与黄酮含量的量效关系研究[J]. 现代中药研究与实践, 2014(3): 23-26, 7.
[13] 王学江, 张全兴, 赵建夫, 等. 水杨酸生产废水的治理与资源化[J]. 环境污染治理技术与设备, 2005(1): 62-67.
[14] Wenchuan DING, Wenlong PENG.Effects of phosphorus concentration on Cr (VI) sorption onto phosphorus-rich sludge biochar[J]. 中国环境科学与工程前沿: 英文版, 2014(3): 379-385.
[15] Djelloul MENDIL, Hadj LAHMAR, Laifa BOUFENDI.Spatial Evolution Study of EEDFs and Plasma Parameters in RF Stochastic Regime by Langmuir Probe[J]. 等离子体科学与技术: 英文版, 2014(9): 837-842.
[16] 李家政, 孙江晓, 史作清. 氢键吸附及其展望[J]. 离子交换与吸附, 2001, 17(6): 561-566.
浙公网安备 33019902000101号 
