Novel technology for the preparation of self-assembled Catechin/Gelatin nanoparticles and their characterization

Yu Chi Chen, Shu Huei Yu, Guo Jane Tsai, Deh Wei Tang, Fwu Long Mi, Yu Ping Peng

研究成果: 雜誌貢獻文章同行評審

70 引文 斯高帕斯(Scopus)

摘要

In this study, self-assembled tea catechin/gelatin nanoparticles were prepared by directly mixing the catechins and gelatin solutions. The mean particle sizes were almost less than 200 nm, and the zeta potential values were negatively charged. FT-IR spectral analysis indicated that hydrogen bonding between aliphatic and aromatic hydroxyl groups, repectively, on gelatin and catechins is responsible for the self-assembly of nanoparticles. Free radical (DPPH• and ABTS•+) scavenging assays showed that tea catechins could be protected by the nanoparticles and that the antioxidant activity of tea catechins was almost retained after three weeks of storage. The tea catechin/gelatin nanoparticles exhibited 28-41% inhibition to trypsin against the degradation of gelatin. This result suggested that the tea catechin/gelatin nanoparticles might be a useful antioxidant carrier because catechins and gelatin were, respectively, protected from oxidation and enzymatic digestion.

原文英語
頁(從 - 到)6728-6734
頁數7
期刊Journal of Agricultural and Food Chemistry
58
發行號11
DOIs
出版狀態已發佈 - 六月 9 2010
對外發佈Yes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Chemistry(all)

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