首页    期刊浏览 2024年11月07日 星期四
登录注册

文章基本信息

  • 标题:Contents of extractable and non-extractable polyphenols in the leaves of blueberry
  • 作者:Cheng A. ; Chen X. ; Wang W.
  • 期刊名称:Czech Journal of Food Sciences
  • 印刷版ISSN:1212-1800
  • 电子版ISSN:1805-9317
  • 出版年度:2013
  • 卷号:31
  • 期号:3
  • 页码:275-282
  • DOI:10.17221/272/2012-CJFS
  • 出版社:Czech Academy of Agricultural Sciences
  • 摘要:The contents of extractable polyphenols (EPP), non-extractable polyphenols (NEPP), extractable proanthocyanidins (EPAC), non-extractable proanthocyanidins (NEPAC) and extractable anthocyanidins (EAC) in blueberry leaves were investigated. An experiment was conducted to analyse the effect of solvent types (methanol and ethanol), concentration (50 and 70%) and pH (2 and 6) on the extraction of bioactive compounds. Total extractable polyphenols (TEPP), total extractable proanthocyanidins (TEPAC), and total extractable anthocyanidins (TEAC) were analysed in methanol/ethanol/water extracts, NEPP were determined in acidic hydrolysates and NEPAC were quantified by depolymerisation in HCl/butanol. The results showed that ethanol and methanol did not affect the extraction of TEPP, while methanol was better for TEPAC and TEAC. The contents of TEPP and TEAC in 50% solvent were higher than those in 70% solvent. When solvent pH dropped to 2, the contents of EPP and EPAC were increased, while the EAC content was decreased.
  • 关键词:leaves of blueberry; extractable polyphenols; non-extractable polyphenols; proanthocyanidins; anthocyanidins
Loading...
联系我们|关于我们|网站声明
国家哲学社会科学文献中心版权所有