沙棘叶中提取黄酮类化合物工艺影响因素研究
Study on Factors Affecting the Extraction Process of Flavonoids from Sea Buckthorn Leaves
何静 1杨英 1罗玲 1郭佳2
作者信息
- 1. 四川化工职业技术学院,四川 泸州 646000
- 2. 泸州老窖股份有限公司,四川 泸州 646000
- 折叠
摘要
本文以乙醇/水溶液作为提取剂对沙棘叶中的黄酮类化合物进行提取,考察了乙醇浓度、提取温度、提取时间对提取效率的影响,并对实验数据进行了化学动力学模型拟合.实验结果表明,脱脂沙棘叶粉末中黄酮类化合物提取的最佳条件为乙醇质量分数 60%,提取温度 65℃,提取时间 60 min,此条件下黄酮类化合物的提取效率最高为 4.12%(质量分数).化学动力学拟合结果表明,二级动力学模型与黄酮类化合物提取工艺数据的拟合度较高,平均相对偏差为±3%.本研究能为推动沙棘提取黄酮类化合物的产业化提供基础的数据支持.
Abstract
In this article,ethanol/water solution was used as the extraction agent to extract flavonoids from sea buckthorn leaves.The effects of ethanol concentration,extraction temperature and extraction time on the extraction efficiency were investigated,and a chemical kinetic model was fitted to the experimental data.The experimental results showed that the optimum conditions for the extraction of flavonoids from defatted seabuckthorn leaf powder were ethanol mass fraction of 60%,extraction temperature 65℃and extraction time 60 min.Under this condition,the extraction efficiency of flavonoids was 4.12%(mass fraction).The results of chemical kinetics fitting showed that the second-level kinetic model had a high degree of fitting with the extraction process data of flavonoids,and the mean relative deviation is±3%.This study can provide basic data support for promoting the industrialization of extracting flavonoids from sea buckthorn.
关键词
沙棘叶/黄酮类化合物/提取/工艺条件Key words
sea buckthorn leaves/flavonoids/extract/process conditions引用本文复制引用
出版年
2024
NETL
NSTL
万方数据