正交法优化超声波辅助枣皮红色素提取工艺研究  

Study on Optimization of Ultrasonic-Assisted Extraction Process of Red Pigment from Jujube Peel by Orthogonal Test Design

作　　者：王钊 李长滨[1] 李玉江[2] 许俊亚 李青静 张本尚[2] 邹建[1] WANG Zhao;LI Chang-bin;LI Yu-jiang;XU Jun-ya;LI Qing-jing;ZHANG Ben-shang;ZOU Jian(College of Food and Biological Engineering,Henan University of Animal Husbandry and Economy,Zhengzhou 450046,China;High&New Technology Research Center of Henan Academy of Sciences,Zhengzhou 450002,China)

机构地区：[1]河南牧业经济学院食品与生物工程学院,郑州450046 [2]河南省科学院高新技术研究中心,郑州450002

出　　处：《中国调味品》2021年第11期161-165,共5页China Condiment

基　　金：河南牧业经济学院科研创新团队项目(2018KYTD17);河南省重点研发与推广专项(科技攻关)(212102110192)。

摘　　要：以经过预处理的红枣皮为起始原料,由低温烘干制得枣皮粉,经过筛选,以氢氧化钾水溶液为提取溶剂。在此基础上,通过单因素试验考察了氢氧化钾浓度、料液比、提取温度、提取时间和超声波辅助提取时间等工艺条件变化对枣皮红色素提取效果的影响。在较优单因素条件的基础上,通过四因素三水平正交试验对提取工艺进行了优化。由正交试验结果可知,该研究对枣皮红色素的最优提取方案为:氢氧化钾浓度0.6 mol/L、料液比1∶20、提取温度80℃、提取时间4 h、超声时间20 min,经3次重复验证试验确认了这一最优工艺条件。Jujube peel powder is prepared from pretreated jujube peel by low temperature drying.After screening,potassium hydroxide aqueous solution is used as the extraction solvent.On this basis,the single factor test is carried out to investigate the effects of potassium hydroxide concentration,solid-liquid ratio,extraction temperature,extraction time and ultrasonic-assisted extraction time on the extraction effect of red pigment from jujube peel.Based on the optimal single factor conditions,the extraction process is optimized by four factors and three levels orthogonal test.According to the orthogonal test results,the optimal extraction scheme of red pigment from jujube peel in this study is as follows:potassium hydroxide concentration is 0.6 mol/L,solid-liquid ratio is 1∶20,extraction temperature is 80℃,extraction time is 4 h,ultrasonic time is 20 min.The optimal extraction conditions are confirmed by three repeated verification tests.

关 键 词：枣皮 提取工艺 正交试验设计 超声波 氢氧化钾 

分 类 号：TS201.1[轻工技术与工程—食品科学]