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. 1967 Oct;105(1):73–77. doi: 10.1042/bj1050073

Studies on flavonoid metabolism. Biosynthesis of (+)-[14C]catechin by the plant Uncaria gambir Roxb

N P Das 1,2, L A Griffiths 1,2
PMCID: PMC1198275  PMID: 6060452

Abstract

1. The formation of (+)-[14C]catechin has been demonstrated in Uncaria gambir after the administration of 14CO2 and [1-14C]acetate. 2. By alkaline degradation to phloroglucinol and protocatechuic acid it has been shown that administration of 14CO2 resulted in equal labelling of the A and B rings of catechin, whereas [1-14C]-acetate gave rise to labelling largely in the A ring. 3. Incorporation of 14C from both 14CO2 and [1-14C]acetate into (+)-catechin was greater in young than in older leaves.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. COMTE P., VILLE A., ZWINGELSTEIN G., FAVRE-BONVIN J., MENTZER C. Biosynthèse des dérivés flavoniques chez Prunus avium. I. Incorporation du trans cinnamate de potassium 3-14-C. Bull Soc Chim Biol (Paris) 1958;40(7-8):1117–1131. [PubMed] [Google Scholar]
  2. GRIFFITHS L. A. Phenolic acids and flavonoids of Theobroma cacao L.; separation and identification by paper chromatography. Biochem J. 1958 Sep;70(1):120–125. doi: 10.1042/bj0700120. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Griffiths L. A. Studies on flavonoid metabolism. Identification of the metabolities of (+)-catechin in rat urine. Biochem J. 1964 Jul;92(1):173–179. doi: 10.1042/bj0920173. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. HATHWAY D. E., SEAKINS J. W. Enzymic oxidation of catechin to a polymer structurally related to some phlobatannins. Biochem J. 1957 Oct;67(2):239–245. doi: 10.1042/bj0670239. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. PATTERSON M. S., GREENE R. C. MEASUREMENT OF LOW ENERGY BETA-EMITTERS IN AQUEOUS SOLUTION BY LIQUID SCINTILLATION COUNTING OF EMULSIONS. Anal Chem. 1965 Jun;37:854–857. doi: 10.1021/ac60226a017. [DOI] [PubMed] [Google Scholar]
  6. UNDERHILL E. W., WATKIN J. E., NEISH A. C. Biosynthesis of quercetin in buckwheat. I. Can J Biochem Physiol. 1957 Mar;35(3):219–228. [PubMed] [Google Scholar]
  7. WATKIN J. E., UNDERHILL E. W., NEISH A. C. Biosynthesis of quercetin in buckwheat. II. Can J Biochem Physiol. 1957 Mar;35(3):229–237. [PubMed] [Google Scholar]
  8. ZAPROMETOV M. N. [On the mechanism of biosynthesis of catechols]. Biokhimiia. 1962 Mar-Apr;27:366–377. [PubMed] [Google Scholar]

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