摘要
祁门红茶是中国历史名茶,其含有的多酚具有促进健康的作用。采用响应面法优化乙醇浸提祁门红茶多酚的工艺参数。主要考察了乙醇体积分数、浸取温度和浸取时间对祁门红茶多酚提取率的影响,结果表明以57.83%乙醇为提取液,在85.07℃下浸提65.33 min,在此条件下多酚类的提取率最高(130.554 mg/g)。该研究为今后祁门红茶中多酚的提取提供了参考。
Keemun black tea is a famous tea in Chinese history.It contains polyphenols,which can promote human health.In this paper,response surface methodology was used to optimize the process parameters of ethanol extraction of polyphenols from keemun black tea.The effects of ethanol volume fraction,extraction temperature and extraction time on the extraction rate of polyphenols from keemun black tea were mainly investigated.The results showed that the optimized conditions were as follows:using 57.83%ethanol as extract for 65.33 minutes at 85.07℃.Under these conditions,the highest extraction rate of polyphenols was 130.554 mg/g.The research results provided references for the subsequent extraction of polyphenols from keemun black tea.
作者
黄良芳
张振阳
潘乐
柯仲成
李长江
HUANG Liang-fang;ZHANG Zhen-yang;PAN Le(School of Chemistry and Chemical Engineering,Huang-shan University,Huangshan,Anhui 245041)
出处
《安徽农业科学》
CAS
2020年第12期186-189,223,共5页
Journal of Anhui Agricultural Sciences
基金
安徽省大学生创新创业训练计划项目(201710375046)
安徽省高校优秀青年人才支持计划重点项目(gxyqZD2018078)
安徽高校省级自然科学研究项目(KJ2012ZD11)。
关键词
祁门红茶
多酚
响应面法
优化
提取工艺
Keemun black tea
Polyphenols
Response surface methodology
Optimization
Extraction process
