Welcome to Chemistry and Industry of Forest Products,

›› 2013, Vol. 33 ›› Issue (4): 117-120.doi: 10.3969/j.issn.0253-2417.2013.04.022

• 1研究报告 • Previous Articles     Next Articles

LC-ESI-MS Analysis of Fragmentive Products of Pine Bark Proanthocyanidins

JIANG Yong-xin1, ZHU Hong-tao2, WANG Jun-min1, ZHANG Ying-jun2, ZHANG Jia-yan3, HUA Yan1, ZHAO Ping1   

  1. 1. Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China;2. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;3. College of Material Engineering, Southwest Forestry University, Kunming 650224, China
  • Received:2012-07-04 Revised:1900-01-01 Online:2013-08-30 Published:2013-08-30

Abstract: The fragmentive products of pine bark proanthocyanidins were analyzed by LC-ESI-MS technique. Three new products were formed from the fragmentive reaction with tea polyphenols as a nucleophile. Their structures were deduced as (epi)catechin-(4β-8)-(-)-epigallocatechin-3-O-gallate (2), (epi)catechin-(4β-8)-(-)-epicatechin-3-O-gallate (1), and (epi)catechin-(4β-8)-(+)-gallocatechin-3-O-gallate (3).

Key words: pine bark proanthocyanidins, fragmentive products, LC-ESI-MS

CLC Number: