食品科学
• 工艺技术 • 上一篇 下一篇
欧阳玉祝,李雪峰,姚懿桓
出版日期:
发布日期:
基金资助:
吉首大学植物资源保护与利用湖南省高校重点实验室开放基金项目(13jdzb094); 湖南湘西自治州科技计划项目(州财企函[2013]7号)
OUYANG Yu-zhu, LI Xue-feng, YAO Yi-huan
Online:
Published:
摘要:
以八月瓜果皮干粉为原料分离总多酚,在单因素试验基础上,采用响应面法优化钙沉淀分离总多酚的工艺条件,考察沉淀剂用量、沉淀温度和时间对总多酚提取率的影响。结果表明,钙沉淀分离总多酚的最佳工艺条件为:在50 mL提取液中,添加90 mL饱和石灰水,70 ℃沉淀38 min。总多酚提取率为5.103 7%。试验模型的预测值与组合实验结果吻合,分离产品总多酚纯度为84.417 4%。
关键词: 八月瓜, 总多酚, 响应面法, 钙沉淀
Abstract:
A calcium precipitation method to separate total polyphenols from a 70% ethanol extract of dried powdered Akebia trifoliate peel was proposed and optimized by response surface methodology. The yield of total polyphenols was investigated as a function of precipitator dosage, precipitation temperature and time. The results showed that the optimum precipitation conditions that provided maximum total polyphenol yield of 5.103 7% were obtained when 50 mL of the extract was precipitated by adding 90 mL of clear saturated limewater at 70 ℃ for 38 min. There was a good agreement between the predicted and experimental data for total polyphenol yield. The separated precipitate contained 84.417 4% total polyphenols.
Key words: Akebia trifoliate, total polyphenols, response surface methodology, calcium precipitation
中图分类号:
TQ351.5
欧阳玉祝,李雪峰,姚懿桓. 离子沉淀法分离八月瓜果皮中的总多酚[J]. 食品科学, doi: 10.7506/spkx1002-6630-201416014.
OUYANG Yu-zhu, LI Xue-feng, YAO Yi-huan. Separation of Total Polyphenols from Akebia trifoliate Peel by Calcium Precipitation Method[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201416014.
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链接本文: https://www.spkx.net.cn/CN/10.7506/spkx1002-6630-201416014
https://www.spkx.net.cn/CN/Y2014/V35/I16/76