Quantification of the polyphenols in leaves of crataegus. pinnatifida bge. var. major ne br by HPLC

• In: SIG Natural Substances - Posters
• At: Beijing (China) (2007)
• Type: Poster
• Poster code: NS-P-107
• By: CUI, Tian-yuan (Hebei University, Baoding, China)
• Co-author(s): CUI, Tong (Agricultural University of Hebei, BAODING, China)
  HAN, Zhe (Quality and Technical Supervision, BAODING, China)
  KAYAHARA Hiroshi (Shinshu University, NAGANO, Japan)
  
• Abstract:

  OBJECTIVE The variation of the contents of flavonoids, procyanidins and chlorogenic acid in leaves of Chinese Hawthorn has been analyzed. The characteristics of leaves which have different subsequences on a branch have been compared, so are the phenols in Chinese Hawthorn and those in European Hawthorn. METHOD Samples are collected from May 20th

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