7187379870

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Response surface optimization of flavonoids extraction from two kinds of chinese tea and research on antioxidant effect

Author(s): Li Hui-Duan

Ethanol extraction of total flavonoids from two kinds of Chinese tea, named as Buckwheat tea and Sparrow mouth tea, were studied in this paper. Based single-factor experimental results, the extract processes were optimized by RSM and Box-Benhnken design. The optimum extract conditions were ethanol concentration of 44%, solid-liquid ratio of 40:0.5 mL·g-1, extraction temperature of 63! and time of 2.1h with responding extraction ratio were 21.64% for Buckwheat tea and 19.41% for Sparrow mouth tea. The experimental extraction ratios matched well with the theoretical values by solving the multiple regression equation. RSM have been proved to be an effective technique for optimization extraction process and the fitted quadratic model has a predictive effect on target extracts. The scavenging effect of tea extracts on hydroxyl radicals displayed a significant dose-effect relationship.


Share this       
Google Scholar citation report
Citations : 1106

Natural Products: An Indian Journal received 1106 citations as per Google Scholar report

Indexed In

  • CASS
  • Google Scholar
  • Open J Gate
  • China National Knowledge Infrastructure (CNKI)
  • Cosmos IF
  • Directory of Research Journal Indexing (DRJI)
  • Secret Search Engine Labs
  • Scholar Article Impact Factor (SAJI))
  • ICMJE

View More

Flyer