Soybean phytoestrogens

Clarkson TB, Anthony MS, Williams JK, Honore EK, Cline JM. The potential of soybean phytoestrogens for postmenopausal hormone replacement therapy. Proc. Soc. Exp. Biol Med. 217, 365-368, 1998. 

Tikkanen MJ, Wahala K, Ojala S, Vihma V, Adlercreutz H. Effect of soybean phytoestrogen intake on low density lipoprotein oxidation resistance. Proc. Natl Acad. ScL USA 95, 3106-3110, 1998. 

Hetman, C. T. Adiercreutz B.R. Goldin S.L. Gorbach K.A.V. Hbekerstedt. Soybean phytoestrogen intake and cancer risk./. Nutr. 1995, 125, 757S. 

Adlercreutz CH, Goldin BR, Gorbach SL, Hockerstedt KA, Watanabe S, Hamalainen EK, Markkanen MH, Makela TH, Whala KT, Hase TA, Fotsis T. Soybean phytoestrogen intake and cancer risk. J Nutr 1995 125(suppl) 757S-770S. 

Some simple foods can be preservatives in their own right. Honey, salt, sugar, lactic acid, and vinegar are all examples of foods that inhibit microbial action. Some health professionals recommend consuming phytoestrogens from foods such as soybeans to achieve various health benefits. The phytoestrogens in the paraben family, found in blueberries, kill molds and fungi and are often added to food as preservatives. 

The three main classes of phytoestrogens (and common food sources) are isoflavones (soybeans), lignans (cereals and oilseeds such as flaxseed), and coumestans (alfalfa sprouts). The biologic potency of phytoestrogens varies and is less than that of synthetic estrogen. 

The phytoestrogens (isoflavones) contain a flavone nucleus. Examples of isoflavones are genistein, formononetin and coumestrol, all with potent estrogenic activity. Soybean isoflavones are a concern in human nutrition because of their estrogenic benefits. 

Soybeans (Glycine max) are protein-rich legumes widely grown around the world as a food crop. They are the major dietary source of isoflavones, which are broken down in the intestine into the phytoestrogens genis-... 

Glycine max (L.) Merrill G. soja Sieb. Zucc. Da Dou Ye Da Dou (Soybean) (seed) Protein, isoflavone derivatives, genisteine, daidzein, riboflavin, thiamine, niacin, pantothenic acid, choline.33,67 Phytoestrogenic, elevate the vasomotor system, prevent cancer, a potent inhibitor of protein tyrosine kinase. 

Wang G, Kuan SS, Francis OJ, Ware GM, Carman AS. 1990. A simplified HPLC method for the determination of phytoestrogen in soybean and its processed products. J Agric Food Chem 38 185-190. 

Phytoestrogens. Several natural plant substances that have general structural features similar to those of DBS and estradiol also have estrogenic effects and have been termed phyioestrogetLs. These include genistein. from soybeans and a species of clover, daidzein. from. soybeans and coume-strol, found in certain legumes. Genistein and daidzein are... 

Structures of phytoestrogens. These are diphenolic compounds found in plants, such as soybeans, sprouts of cloves, and alfalfa. 

Increased intake of phytoestrogen-rich foods (soybean products) and tryptophan-containing foods (fish, poultry, and dairy products)... 

Considerable research has identified several potential health benefits associated with increased soy consumption, and soybeans, which contain trypsin inhibitors such as phytic acid, saponins, and phytoestrogens, are now looked upon for potential health benefits. 

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