Enzymatic preparation of kaempferol from green tea seed and its antioxidant activity.

@article{Park2006EnzymaticPO,
  title={Enzymatic preparation of kaempferol from green tea seed and its antioxidant activity.},
  author={Jun Seong Park and Ho Sik Rho and Duck-Hee Kim and Ih-seop Chang},
  journal={Journal of agricultural and food chemistry},
  year={2006},
  volume={54 8},
  pages={
          2951-6
        }
}
  • J. Park, H. Rho, +1 author I. Chang
  • Published 24 March 2006
  • Medicine, Chemistry
  • Journal of agricultural and food chemistry
Among the flavonols in green tea, kaempferol has many biological activities but kaempferol of plant origin is too expensive to be used in commercial products. Recently, we confirmed that green tea seed (GTS) contained a reasonable amount of kaempferol glycoside. After conducting structure analysis, two kaempferol glycosides were identified, kaempferol-3-O-[2-O-beta-D-galactopyranosyl-6-O-alpha-L-rhamnopyranosyl]-beta-D-glucopyranoside (compound 1) and kaempferol-3-O-[2-O-beta-D-xylopyranosyl-6… 
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Cytotoxic as well as antioxidant activities of the isolated metabolites were determined and transformation of kaempferol to the new compound ka Kempferol 7-O-beta-D-4- O-methylglucopyranoside was observed after fermentation with Beauveria bassiana.
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This is the first study to address the synthesis of pure leucoside from a natural source by enzymatic partial hydrolysis of TSE.
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The yield and the antioxidant activities of the extracts from MCAE with water as solvent were higher and stronger than the heat reflux extraction (HRE) method.
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It was concluded that pure AS can be prepared by enzymatic partial hydrolysis of TSE and employed as an anti-inflammatory material.
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The combination of the use of Gal and Pec in the enzymatic hydrolysis of TSE afforded NF with high specificity, and the chemical structure of NF was confirmed by (1)H and (13)C NMR analyses.
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Screening for high Kaempferol content in different species of Malaysian medicinal plants
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The findings suggest that kaempferol content depends on plant species and physiological state of the plant organs, and suggests that T. semidecandra could be an alternative source of ka Kempferol.
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References

SHOWING 1-10 OF 15 REFERENCES
Antioxidant and free radical scavenging activity of flavonol glycosides from different Aconitum species.
Two flavonol glycosides from seeds of Camellia sinensis.
Inhibition of nitric oxide synthase expression by a methanolic extract of Crescentia alata and its derived flavonols.
Inhibition of human low density lipoprotein oxidation by flavonols and their glycosides.
Antioxidant efficacy of phytoestrogens in chemical and biological model systems.
TLDR
The only estrogenic compound with significant antioxidant activity was kaempferol, better known as a dietary antioxidant than a phytoestrogen, which may indicate little significance as antioxidants in vivo.
Antioxidant activity of Centaurium erythraea infusion evidenced by its superoxide radical scavenging and xanthine oxidase inhibitory activity.
TLDR
Evidence is provided that C. erythraea exhibits interesting antioxidant properties, expressed either by the capacity to scavenge superoxide radical or to noncompetitively inhibit xanthine oxidase.
Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships.
Pharmacognosy of Mimosa tenuiflora (Willd.) Poiret.
Structure-activity relationship and classification of flavonoids as inhibitors of xanthine oxidase and superoxide scavengers.
TLDR
The structure-activity relationship of flavonoids as inhibitors of xanthine oxidase and as scavengers of the superoxide radical, produced by the action of the enzyme xanthines oxidase, was investigated and showed slightly higher inhibitory activity than flavonols.
Review of the biology of Quercetin and related bioflavonoids.
  • J. Formica, W. Regelson
  • Biology
    Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
  • 1995
...
1
2
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