摘要
[目的]为葡萄皮色素的开发提供有价值的试验数据。[方法]以葡萄皮为原料,通过单因素试验及正交试验优化葡萄皮色素的提取工艺。[结果]乙醇浓度为50%~90%时,葡萄皮色素的提取效果呈上升趋势。提取温度50~80℃、料液比由14:增加到15:时,葡萄皮色素的吸光度增加明显。提取时间为2 h时,葡萄皮色素的吸光度值最大。各因素对葡萄皮色素提取效果的影响主次顺序为:提取溶剂浓度>料液比>提取温度,最优提取工艺为提取溶剂80%乙醇,料液比17:,提取温度80℃,提取时间2 h。[结论]该提取工艺以乙醇为提取溶剂,成本低廉,且操作简单,安全性高,适于工业化生产。
[Objective] The aim was to provide valuable experiment data for the development of grape peel pigment. [Method] With the grape peel as raw material, the extraction technology for pigment from grape peel was optimized through the single factor test and orthogonal test. [Results] The extraction effect on the grape peel pigment showed a rising trend when the ethanol concn, was 50%-90%. The absorbance of grape peel pigment was increased evidently when the extraction temperature was 50-80 ℃. and solid -liquid ratio was increased from 1:4 to 1:5. The absorbance value of grape peel pigment was the largest when the extraction time was 2 h. The influence of different factors for the extraction effect on grape peel pigment in order was: extraction solvent concn.〉 solid-liquid ratio 〉 extraction temperature. The best extraction technology was extracted solution of 80% ethanol, the solid-liquid ratio of 1:7, extracting temperature of 80℃ , and the extracting time of 2 h. [Conclusion] This extraction technology, taking the ethanol as the extraction solvent, had features of with low cost. easy operation and high safety, and was suitable for industrialized production.
出处
《安徽农业科学》
CAS
北大核心
2008年第14期5703-5704,5741,共3页
Journal of Anhui Agricultural Sciences
关键词
葡萄皮色素
提取溶剂
提取工艺
Grape peel pigment
Extraction solvent
Extraction technology