Old ancient soybean,Soy and the dissemination,cultivation.

Contents

• Basic Botanical Data of Soy.Glycine max.
• Cultivation and plant history of Soy:Soy and the dissemination.
• Nutrients and Phytochemicals of Soy.
• Soybeans are used in a variety of ways in Asia.
• Soy Active Compounds.
• History of Soy.
• Health and Functionality of Soy:1).Soy and Reduction in Cholesterol.
• Health and Functionality of Soy:2).Soy Improves Digestion.
• Health and Functionality of Soy:3).Soy Treat heart disease.
• Health and Functionality of Soy:4).Soy reduce certain cancers.
• Health and Functionality of Soy:5).Soy is also being studied for possible effectiveness in numerous other conditions.
• Health and Functionality of Soy:6).Soy as Bowman-Birk inhibitor(BBI).
• Health and Functionality of Soy:7).Phytoestrogens and Soy Extract.
• Health and Functionality of Soy:8).Dietary Soybean:A Source of Functional Food Ingredients, Soy proteins,Soy carbohydrates,Soy lipids and phytosterols,Soy phytoestrogens,Soy saponins,Soy Isoflavones.
• Soy Components:8.1).Soy proteins.
• Soy Components:8.2).Soy carbohydrates.
• Soy Components:8.3).Soy lipids and phytosterols.
• Soy Components:8.4).Soy phytoestrogens.
• Soy Components:8.5).What are phytoestrogens?.
• Soy Components:8.6).Soy saponins.
• Soy Components:8.7).Soy Isoflavones.
• Research Update and latest findings of Soy Isoflavones.Daidzein.Daidzin.Genistein.Genistin related.

Soy Components:8.5).What are phytoestrogens?:

Phytoestrogens are plant compounds that can have a variety of biological effects in humans, including oestrogenic effects under certain circumstances.

 The hormonal effects of phytoestrogens are due to a degree of structural similarity between these compounds and the human oestrogen, 17b-oestradiol.

 Phytoestrogens are not identical to human hormones, nor are they converted to human hormones in the body. The structural requirements for oestrogenic activity of phytoestrogens include a hydroxyl group in the same position as the hydroxyl group on the benzene ring in oestradiol.

 Oestrogen binding activity is further facilitated by the presence of a second hydroxyl group in the opposite end of the molecule.


 Oestrogenic and anti-oestrogenic activity:

 The generation of oestrogenic effect depends on the activation of specific receptors, subsequently leading to gene expression and modifications in cellular response.

 Phytoestrogens have an affinity for oestrogen receptors and have been shown to stimulate transcription activity of human oestrogen receptors.

 Compared with the human hormone oestradiol, phytoestrogens have very weak oestrogenic effects, typically ranging from 1/500 to 1/1000 of the activity of 17b-oestradiol.

 Soy and osteoporosis:

 The incidence of osteoporosis in this country is increasing as the population ages, leading to more hip fractures, pain, disability and death. One commonly recommended treatment is hormone replacement therapy for women at menopause. However, many women choose not to use hormone replacement because of the potential for side effects such as increased risk for breast cancer and leg thrombosis. Asian populations with a high soy intake have a substantially lower incidence of osteoporosis, suggesting that increasing our soy intake may be a beneficial alternative to hormone replacement therapy. Soy isoflavones are phyto-estrogens and may bind to estrogen receptors to maintain bone integrity after menopause without the detrimental side effects seen with hormone replacement treatments. Ovariectomized rats are being used as a model for postmenopausal women to study the potential of soy protein for maintaining bone mineral.


 Several studies in the LSU AgCenter's School of Human Ecology have confirmed that soy protein containing natural soy isoflavones can reduce the vertebral bone loss that normally occurs in ovariectomized rats. This research has shown that the protective effect of soy is dose responsive to the level of soy protein in the diet and is most beneficial when soy is part of a low-fat diet. In the most recent soy study, ovariectomized rats were fed a low-fat diet with 5 percent, 10 percent or 15 percent soy protein and compared to casein-fed rats with and without ovariectomy. The density of the vertebrae was measured at the end of the study. The benefits of soy protein on vertebral bone density were clearly seen in 10 percent and 15 percent soy fed rats. As the level of soy protein increased in the diets from 5 percent to 10 percent to 15 percent, the vertebral bone mineral density increased by 3 percent, 15 percent and 18 percent respectively, when compared to the ovariectomized control rats. This confirms the benefits of soy in reducing bone loss and osteoporosis.

Reference:

• 1.Old ancient soybean,Soy and the dissemination,cultivation.

This article written and edited via herbalist of MDidea Extracts Professional. They run a range of online descriptions about this herb,including general information related and summarized updating discoveries from findings of professional scientisits this field related.Describe style aimed to form a useful detecting literature space where the intertwined threshold and related questions raise out and visualize themselves.

♣ last edit date:15th,Oct.2010.