摘要
采用超声工艺提取建阳桔柚果皮色素,通过单因素和正交试验进行分析,最佳提取条件为:料液比1∶25,超声时间14min,浸提温度40℃。研究表明:建阳桔柚果皮色素的热稳定性差,温度越高越不利于色素稳定,适宜的温度是20~40℃;光照和氧气都可降低色素的稳定性;Na^+、K^+、Ca^(2+)对建阳桔柚果皮色素稳定性影响不大,而蔗糖、Mg^(2+)、Fe^(2+)影响色素稳定性,pH在8.0~9.0时,色素较稳定。
Extracting pigment from Jianyang tangelo peel by ultrasonic method was analyzed. The results of single-factor and orthogonal experiments showed that the optimal extraction conditions were following: material-liquid radio 1 ∶ 25, ultrasonic time 14 min, extracting temperature 40℃. Jianyang tangelo peel pigment was unstable to heat, and it was the stablest at temperature 20~40℃; and sunlight and oxygen could speed up its degradation. Sodium ion, potassium ion and calcium ion have no effect on the stability of pigment, but sucrose,magnesium ion, ferric ion have a negative effect on pigment stability, and it was the stablest at the pH8.0~9.0.
出处
《武夷学院学报》
2017年第9期6-12,共7页
Journal of Wuyi University
基金
福建省教育厅科技项目(2016JAT160736)
关键词
建阳桔柚果皮
色素
超声波提取法
稳定性
Jianyang Tangelo peel
pigment
ultrasonic extraction
stability
