title: Major isoflavonoid contents of the phytoestrogen rich-herb Pueraria mirifica in comparison with Pueraria lobata.
abstract: Pueraria mirifica tubers collected from 28 out of 76 provinces of Thailand and Pueraria lobata tubers collected from Guangzhou province, China were submitted to HPLC analysis with the established gradient system comprising 1.5% acetic acid and acetonitrile. Five major isoflavonoids, including puerarin, daidzin, genistin, daidzein and genistein, were adopted as authentic standards. P. mirifica tubers showed intra- as well as inter-provincial differences in isoflavonoid and total isoflavonoid contents. The difference in both cases should be mostly influenced by genetic and environmental factors. In comparison with P. lobata, P. mirifica population exhibited differences only with a lower amount of daidzein.
authors.affiliation: Department of Biology, Faculty of Science, Chulalongkorn University, Phyathai Road, Patumwan, Bangkok 10330, Thailand. cwichai@sc.chula.ac.th
authors.forename: Wichai
authors.initials: W
authors.lastname: Cherdshewasart
authors.forename: Subongkoj
authors.initials: S
authors.lastname: Subtang
authors.forename: Winai
authors.initials: W
authors.lastname: Dahlan
mesh_terms: D002138:Calibration; D002681:China; D002851:Chromatography, High Pressure Liquid / Q000379:methods / Q000592:standards; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000592:standards; D019833:Genistein / Q000032:analysis; D007529:Isoflavones / Q000032:analysis*; D015394:Molecular Structure; D048789:Phytoestrogens / Q000032:analysis*; D035281:Plant Tubers; D029908:Pueraria / Q000737:chemistry*; D011786:Quality Control; D012621:Seasons; D013785:Thailand
chemical_list: D004365:Drugs, Chinese Herbal; D007529:Isoflavones; D048789:Phytoestrogens; C040641:genistin; C013908:daidzin; C004742:daidzein; D019833:Genistein; C033607:puerarin