19%, while the glycitin, genistin
, dai dzein, glycitein and genistein was 31.
The scientists quantified several isoflavones: daidzin, genistin
, glycitein, and their respective acetyl, malonyl and aglycone derivatives using high-performance liquid chromatography-photodiode array (HPLC-PDA).
In comparison with other related and renowned plant species Pueraria lobata, although PM had a comparable amount of puerarin, daidzin, genistin
, genistein and lower amount of daidzein (Cherdshewasart et al.
Isolation of human intestinal bacteria metabolizing the natural isoflavone glycosides daidzin and genistin
Prevention of rat breast cancer by genistin
Sutovsky also draws attention to the fact that Solbar's products contain high levels of genistin
and genistein in a glycoside conjugate to aglycone ratio that matches the profile of isoflavones as they naturally occur in the soybean.
The study drug tablet contained 75 mg of soy isoflavones standardized to provide isoflavones 40 per cent (Genistein and Genistin
25%; Daidzein and Daidzin 15%) along with 200 mg elemental calcium, 100 mg elemental phosphorus, and 100 IU of vitamin D3.
In soybean itself and most soy products, genistein and its beta glycoside, genistin
, constitute around 50-55% of total isoflavone content compared with 40-45% for daidzein/daidzin and 5-10% for glycitein/ glycitin (Messina 2006).
Legend aside, there are modern scientific studies showing that the plant contains phytoestrogens such as miroestrol and deoxymiroesfrol, isoflavonoids such as daidzin and daidzein, and isoflavones like genistin
, genistein and puerarin.
Pueraria mirifica does contain the phytoestrogens daidzin, daidzein, genistein, coumestrol, and genistin
, but also the stronger estrogenic ingredients miroestrol and deoxymiroestrol.
Since it is a concentrated material, Novasoy provides a rich source of the two most abundant isoflavones present in soya beans, genistin
and daidzin, together with other ingredients that are naturally present in soya beans.
Describes levels of the phytoestrogens genistein and genistin