光度法研究八元瓜环与食用色素-日落黄和靛蓝的相互作用  

Study on the self-assembled inclusion complexes about cucurbit[8]uril with sunset yellow and indigo dye

作　　者：郑利梅[1] 王秋丽[2] 豆超群[1] 展海军[1] 陶朱[3] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001 [2]郑州大学,河南郑州450001 [3]贵州大学应用化学研究所,贵州贵阳550025

出　　处：《食品工业科技》2011年第11期114-116,共3页Science and Technology of Food Industry

基　　金：国家自然科学基金资助项目(20961002);河南工业大学校基金(10XZR017)

摘　　要：利用紫外可见吸收光谱法研究了八元瓜环(Q[8])与食用色素靛蓝(g2)和日落黄(g3)的相互作用情况。考察了溶液的酸度对作用体系的影响。计算了稳定常数,测定了作用体系的校正曲线。结果表明,八元瓜环与客体的相互作用随客体及溶液pH的不同而有所改变。pH>5.3,Q[8]与日落黄(g3)能够发生明显的相互作用,形成作用比为2∶1的稳定配合物,而Q[8]与靛蓝(g2)则在pH<10.8时,才能形成配比为1∶2的稳定配合物。这对于研究瓜环与食用色素的包结和缓释等在食品添加剂的开发和应用方面具有重要的研究价值。Interaction between Q[8]with sunset yellow and indigo dye have been investigated by using ultraviolet-visible absorption spectrophotometry.The influence of pH on the interaction was studied in details.The results showed that the stability of the inclusion complexes was related to the guests and the pH of solution：Q[8]can interact with guest of g3 completely with a ratio of 2∶ 1 at pH5.3.However,the inclusion complexes of Q[8]and g2 completely with a ratio of 1∶ 2 at pH10.8.Inclusion and release about cucurbit[n]uril and food dye had been researched and this maybe have important values in development and application of food additives.

关 键 词：分光光度法 八元瓜环 日落黄 靛蓝 相互作用 

分 类 号：TS201.2[轻工技术与工程—食品科学]