憎水性栀子蓝色素制备的研究  

RESEARCH ON THE PREPARATION OF HYDROPHOBIC GARDENIA BLUE PIGMENT

作　　者：杨志[1] 张芳[1] 林欣[1] 蔡艺云[1] 甘纯玑[2] 

机构地区：[1]福建农林大学食品科学学院,福建福州350002 [2]福建农林大学生命科学学院,福建福州350002

出　　处：《河南工业大学学报（自然科学版）》2008年第4期24-27,共4页Journal of Henan University of Technology：Natural Science Edition

摘　　要：以浓盐酸为催化剂,采用乙酸酐酯化处理水溶性栀子蓝色素,制备了憎水性栀子蓝色素.探讨了栀子蓝色素与乙酸酐料液比、反应时间和反应温度等因素对憎水性栀子蓝色素色价的影响.结果表明:采用料液比1∶20,在常温下反应4 h,为制备憎水性栀子蓝色素的最优条件.同时,通过红外光谱、可见吸收光谱及溶解性对栀子蓝色素的酯化改性进行了初步的探讨.The hydrophobic gardenia blue pigment was prepared with the water-soluble gardenia blue pigment esterified by acetic anhydride, and catalyzed by hydrochloric acid. The effects of reaction time, water bath temperature and the solid-liquid ratio of water-soluble gardenia blue pigment to acetic anhydride on the color value were studied. The results showed that the optimal condition was achieved when the ratio of water-soluble gardenia blue pigment to acetic anhydride was 1 ： 20 and reaction time 4 h at room temperature. And the esterifieation of gardenia blue pigment was analyzed by infrared spectrum, visible spectrum, and it＇ s solubility was discussed as well.

关 键 词：水溶性栀子蓝色素 乙酸酐 憎水性栀子蓝色素 酯化 

分 类 号：TS201.2[轻工技术与工程—食品科学]