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投稿时间：2021-07-06
投稿时间：2021-07-06
中文摘要: 为研究超声辅助低共熔溶剂提取红枣多糖的最优工艺，以红枣多糖提取率作为评价指标选择最佳的低共熔溶剂体系，对红枣多糖提取所需的超声温度、超声时间、料液比、含水量进行单因素和响应面试验分析。结果表明：提取红枣多糖的低共熔溶剂体系和摩尔比的最优条件为氯化胆碱∶尿素=1∶2，最优提取工艺为超声温度40℃，超声时间30 min，料液比 1∶10（g/mL），含水量 20%，在此条件下，红枣多糖提取率为（8.33±0.26）%。
Abstract:This study was conducted to elucidate optimal conditions for the extraction of polysaccharides from jujube with ultrasound-assisted deep eutectic solvent extraction.The best deep eutectic solvent system was selected with the extraction rate of jujube polysaccharides as an evaluation index.Additionally，response surface methodology was used to optimize ultrasonic temperature，ultrasonic treatment time，solid-liquid ratio，and water content；this was done solely with the aim of having the highest polysaccharide extraction rate.The results showed that the optimal eutectic agent system for extracting jujube polysaccharides consisted of choline chloride and urea，at a molar ratio of 1∶2.The optimal extraction process was characterized by the following conditions:an ultrasonic temperature of 40 ℃，ultrasonic treatment time of 30 min，and a solid to solvent ratio of 1∶10（g/mL），with water content at 20%.Under these conditions，the extraction rate of jujube polysaccharide was（8.33±0.26）%.
文章编号：202218017 中图分类号： 文献标志码：
基金项目:塔里木大学校长基金项目（TDZKSS201908）
| 作者 | 单位 |
| 白冰瑶1,2，李泉岑1，马欣悦1，吴一凡1，乔婉怡1，王馥叶1，张春兰1,2* | 1.塔里木大学食品科学与工程学院，新疆 阿拉尔 843300；2.南疆特色农产品深加工兵团重点实验室，新疆 阿拉尔 843300 |
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