低共熔溶剂提取油茶籽壳中原花青素的工艺优化  

Optimization of extraction of procyanidins from oil-tea camellia seed shell with deep eutectic solvents

作　　者：侯黔灵 范丽美 HOU Qianling;FAN Limei(Qiandongnan Institute of Forestry,Kaili 556000,Guizhou,China;School of Economics Management,Kaili University,Kaili 556011,Guizhou,China)

机构地区：[1]黔东南州林业科学研究所,贵州凯里556000 [2]凯里学院经济与管理学院,贵州凯里556011

出　　处：《中国油脂》2023年第2期129-132,共4页China Oils and Fats

基　　金：贵州省林业局林业优秀青年人才培养专项资金(黔林科合J字[2020]11号)。

摘　　要：为促进油茶籽副产物的高值化利用,采用低共熔溶剂提取油茶籽壳中的原花青素,通过单因素试验考察了提取溶剂种类、摄取溶剂质量分数、料液比、提取温度和提取时间对原花青素得率的影响,并利用正交试验对油茶籽壳中原花青素提取的工艺条件进行优化。结果表明:低共熔溶剂提取油茶籽壳中原花青素的最优工艺条件为以氯化胆碱-柠檬酸(物质的量比1∶1)溶液为提取溶剂、氯化胆碱-柠檬酸溶液质量分数80%、料液比1∶25、提取温度80℃、提取时间40 min,在此条件下原花青素得率为5.26%。综上,低共熔溶剂可有效提取油茶籽壳中的原花青素。To promote the high value utilization of by-products from oil-tea camellia seed, procyanidins was extracted from oil-tea camellia seed shell with deep eutectic solvents, the effects of extraction solvent type, mass fraction of solvent, solid-liquid ratio, extraction temperature and extraction time on the yield of procyanidins were investigated by single factor experiment and process conditions for extraction of procyanidins from oil-tea camellia seed shell were optimized by orthogonal experiment. The results showed that the optimal extraction conditions were obtained as follows: with choline chloride-citric acid(molar ratio 1∶1) solution as extraction solvent, mass fraction of choline chloride-citric acid solution 80%, solid-liquid ratio 1∶25, extraction temperature 80℃, extraction time 40 min. Under these conditions, the yield of procyanidins was 5.26%.In conclusion, the procyanidins can be effectively extracted from oil-tea camellia seed shell with deep eutectic solvents.

关 键 词：低共熔溶剂 提取 油茶籽壳 原花青素 正交优化 

分 类 号：TQ413[化学工程] TS209[轻工技术与工程—食品科学]