Search Results - Polyphenol
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Polyphenols are a group of chemical substances found in plants, characterized by the presence of more than one phenol unit or building block per molecule. Polyphenols are generally divided into hydrolyzable tannins ( gallic acid esters of glucose and other sugars) and phenylpropanoids, such as lignins, flavonoids, and condensed tannins. The division of polyphenols into tannins, lignins, and flavonoids is derived from the variety of simple polyphenolic units derived from secondary plant metabolism of the shikimate pathway[1] as well as classical divisions based upon the relative importance of each base component to different fields of study. Tannin chemistry originated in the importance of tannic acid to the tanning industry; lignins to the chemistry of soil and plant structure; and flavonoids to the chemistry of plant secondary metabolites for plant defense, and flower color (e.g. from anthocyanins). The largest and best studied polyphenols are the flavonoids, which include several thousand compounds, among them the flavonols, flavones, catechins, flavanones, anthocyanidins, and isoflavonoids.[2] The most abundant polyphenols are the condensed tannins, found in virtually all families of plants, and comprising up to 50% of the dry weight of leaves. The convergent evolution of tannin-rich plant communities has occurred on nutrient-poor acidic soils throughout the world. Tannins were once believed to function as anti-herbivore defenses, but more and more ecologists now recognize them as important controllers of decomposition and nitrogen cycling processes. As concern grows about global warming, there is great interest to better understand the role of polyphenols as regulators of carbon cycling, particularly in northern boreal forests.
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Showing 1 to 7 of 7 Articles matching 'Polyphenol' in related articles. |
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1. The Super Fruit Handbook: Pomegranate - Mother Nature's Heart Health and Cholesterol Fruit
August 26, 2008
Pomegranates are now being featured as one of the hot "super foods" that both tastes good and is good for you. Nutritional research confirms that pomegranates contain minerals - potassium, iron and calcium and vital compounds known as phytonutrients, tannins, polyhenols, ellagic acid and anthocyanins that help the body protect against heart disease, diabetes, cholesterol rheumatoid arthritis and a whole of additional benefits. The Pomegranate: What is it? A pomegranate is a fruit the size of a large orange. The leathery reddish-pink skin shelters the membranous walls and bitter tissue... (read more)
Author: Russ Anderson
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2. Green Tea For Weight Loss
June 03, 2008
Green tea can aid your weight loss goals if you have any. What is good about green tea is that it has no side effects and brings you many health benefits not to mention disease prevention because of its antioxidant properties.
Among the different kinds of tea, green tea is favored for weight loss because of its polyphenol antioxidants and caffeine concentrations. Yes, in terms of weight loss, caffeine together with the antioxidant ingredients in green tea can be beneficial.
Before we begin our discussion on the way green tea can benefit in weight loss, we'll have to get a little unde... (read more)
Author: Jess Ba-ad
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3. Red Wine Antioxidant Fights Cancer and Activate a Longevity Gene
May 19, 2008
Resveratrol is a polyphenol found in high concentration in red grapes, red wine, peanuts, and pines. Resveratrol is thought to be the reason why French people can consume large quantities of fat in their diet and remain relatively unaffected by the diseases normally associated with a high fat diet. Resveratrol is a broad-spectrum agent that stops cancer in many diverse ways, from blocking estrogen and androgens to modulating genes. Resveratrol is now available in supplement form, so you can experience all of its health benefits—without the side effects of increased alcohol consumption. ... (read more)
Author: Paul Rodgers
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4. Green Tea Great For Fighting Colon Cancer
December 08, 2007
When you receive the Seal you begin to take care of your body, and nurse it back to health. One of the little things you can do for your health is switch from coffee to green tea, which recent studies show has even more health benefits.
The new research was unveiled at the Sixth Annual Conference on Frontiers in Cancer Prevention which was held by the American Association for Cancer Research.
The research shows that a polyphenol preparation made from green tea (called Polyphenon E) inhibits the growth of colorectal tumors in rats when they are also being treated with something... (read more)
Author: Jason Witt
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5. A complete multi-faceted approach to nutrition and disease
November 27, 2007
Many terms have come to define the complex symptom set and chronic disease inter-relationship that is generally recognized as the metabolic syndrome, a precursor to the modern scourge, adult- onset diabetes. Encompassing elevated lipids and glucose, high blood pressure, central adiposity and other signs and symptoms, this is the clinical manifestation of the American obesity epidemic. Nutrition texts refer to a toxic food environment.
Each quarter, I explain to students that this phrase has a dual meaning. We live in a predominantly couch-friendly, TV marketing environment that is toxic,... (read more)
Author: Michael Altman
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6. What You Should Know About Green Tea
August 22, 2006
There is much information about green tea that is important to know, especially in regards to your health and well-being. One of green tea’s positive benefits is that it contains antioxidants. Antioxidants are chemicals that greatly reduce the rate of particular oxidation reactions in the body. This oxidation process can sometimes be carcinogenic and can release free radicals within your body. Free radicals can cause damage to your body’s cells. Over time, this damage is irreversible and could lead to cancer.
Antioxidants are extremely important, and a diet containing polyphenol antioxida... (read more)
Author: Dan Lanicek
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7. Green Tea and Breast Cancer
August 17, 2006
Green tea provides numerous health benefits and while many have not been scientifically proven, some have been. Most recently, the claim that green tea helps fight and prevent breast cancer is being researched. Interestingly, the Chinese have been using green tea medicinally to treat disease for over 4000 years.
Green tea contains the polyphenol EGCG, that is an antioxidant that inhibits cancer cells from reproducing. Polyphenol is known to kill cancer cells while not harming healthy ones. Green tea is loaded with healthy minerals among others such as aluminum and fluoride and is rich in ... (read more)
Author: Elizabeth Radisson
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