Science Current Events | Science News | Brightsurf.com
 
Email a Friend Send to a friend
Printer Friendly Print Mushrooms as good an antioxidant source as more colorful veggies
Slashdot It! Slashdot Mushrooms as good an antioxidant source as more colorful veggies
Submit to Reddit Submit Mushrooms as good an antioxidant source as more colorful veggies to Reddit
Reading: Mushrooms as good an antioxidant source as more colorful veggiesTwitter This Reading: Mushrooms as good an antioxidant source as more colorful veggiesTwitter Mushrooms as good an antioxidant source as more colorful veggies
Add to Facebook Add Mushrooms as good an antioxidant source as more colorful veggies to Facebook

Mushrooms as good an antioxidant source as more colorful veggies

June 27, 2006

Portabella and crimini mushrooms rank with carrots, green beans, red peppers and broccoli as good sources of dietary antioxidants, Penn State researchers say.

Dr. N. Joy Dubost, who recently earned her doctorate in food science at Penn State, measured the activity of two antioxidants, polyphenols and ergothioneine, present in mushrooms, using the ORAC assay and HPLC instrumentation, as part of her dissertation research. She found that portabella mushrooms had an ORAC value of 9.7 micromoles of trolox equivalents per gram and criminis had an ORAC value of 9.5. Data available from other researchers shows carrots and green beans have an ORAC value of 5; red pepper 10; and broccoli 12.




The ORAC assay, the most well known test of antioxidant capacity, focuses on the peroxyl radical, the most predominate in the human body. Free radicals, such as the peroxyl radical, are thought to play a role in the aging process and in many diseases, including cancer, Alzheimer's and atherosclerosis. Epidemiological studies have shown that those who eat the most fruits and vegetables rich in antioxidants have lower incidence of these diseases.

Dubost detailed her results in a paper, Quantification of Polyphenols and Ergothioneine in Cultivated Mushrooms and Correlation to Total Antioxidant Capacity Using the ORAC and HORAC Assays, presented Monday, June 26, at the Institute of Food Technologists meeting in Orlando, Fl. Her co-author is her dissertation adviser, Dr. Robert Beelman, professor of food science.

Dubost explains that assays are a first step toward determining how effective a food is in providing protection against oxidative damage. Anti-oxidants inhibit increased rates of oxidation, which can damage proteins, lipids carbohydrates and DNA.

She adds, "The ORAC assay does not tell what happens in the human body but this assay is currently under investigation as to how it can predict physiological activity."

The Penn State study showed that the anti-oxidant effect of mushrooms is due primarily to the presence of polyphenols. Dubost and Beelman had earlier identified mushrooms as an abundant source of the anti-oxidant, ergothionene.

Dubost notes, "Evidence suggests that erogothioneine is biologically very important and, even though the assay used does not show it contributes to total antioxidant activity in the mushrooms, it may significantly contribute antioxidant activity in the body."

The ORAC values found in the latest study indicate that mushrooms are potent anti-oxidant sources. The research revealed that, of the mushrooms tested, portabella mushrooms and crimini mushrooms have the highest ORAC values. Criminis, which are brown, are otherwise similar to the popular white button mushroom, the one mostly commonly consumed in the U.S. The white button mushroom has an ORAC value of 6.9, above tomato, green pepper, pumpkin, zucchini, carrot, and green beans.

Dubost says, "You don't have to eat only the vegetables with the highest anti-oxidant capacity to benefit. If you eat a variety of mushrooms along with a variety of other vegetables, you'll be getting a variety of antioxidants."

Penn State





Science News and Science Current Events Tag Cloud
This tag cloud is a visual representation of term frequencies of random science news topics with common terms grouped together and emphasized by their display size.
Chromosomes   Bad Breath   Stroke   Pulsar   Mitochondrial Dna   Graphene   Learning   HPV   Oxytocin   Taste   Phytoplankton   Lithium   Rem Sleep   Chronic Pain   Sturgeon   Chronic Fatigue Syndrome   Lupus   Chemistry   Mangrove   Acetaminophen   Invisibility Cloak   Mosquitoes   Brain Disease   Childhood Obesity   Axons  
Related Antioxidant Current Events and Antioxidant News Articles Antioxidant Current Events and Antioxidant News RSS Antioxidant Current Events and Antioxidant News RSS
New supplement may help slow sight loss in elderly
Queen's University Belfast academics have helped develop an antioxidant supplement which may slow down sight loss in elderly people.

Omega-3 fatty acids appear to impact AMD progression
Omega-3 fatty acids found in fatty fish such as tuna and salmon may protect against progression of age-related macular degeneration (AMD), but the benefits appear to depend on the stage of disease and whether certain supplements are taken.

What is the role of reactive oxygen species in ethanol-mediated cell death of polarized hepatic cells?
Liver disease that results as a consequence of alcohol abuse is a major medical problem worldwide. Ethanol consumption leads to a variety of liver alterations including the accumulation of fat, inflammation of the liver, as well as the presence of scar tissue.

Many breast cancer patients take high doses of antioxidants despite possible consequences
A new study finds that many women with breast cancer take antioxidant supplements while undergoing cancer treatment, even though the consequences of doing so are unknown.

Many breast cancer patients take high doses of antioxidants despite possible consequences
A new study finds that many women with breast cancer take antioxidant supplements while undergoing cancer treatment, even though the consequences of doing so are unknown.

Is cherry juice a new 'sports drink?'
Drinking cherry juice could help ease the pain for people who run, according to new research from Oregon Health & Science University presented at the American College of Sports Medicine Conference in Seattle, Wash.

Caffeic acid inhibits colitis in a mouse model -- is a drug-metabolizing gene crucial?
Researchers at Iowa State University have found that increased expression of a form of cytochrome P-450 (CYP4B1) is a key marker of inhibition of colitis in mice by caffeic acid, an anti-inflammatory antioxidant compound widely distributed in foods.

Unusually large family of green fluorescent proteins discovered in marine creature
Researchers at Scripps Institution of Oceanography at UC San Diego and the Salk Institute for Biological Studies have discovered a family of green fluorescent proteins (GFPs) in a primitive sea animal, along with new clues about the role of the proteins that has nothing to do with their famous glow.

TB vaccine gets its groove back
A team of Vanderbilt University Medical Center investigators has cracked one of clinical medicine's enduring mysteries - what happened to the tuberculosis vaccine.

A potential anti-ulcer herb medicine: Rocket 'Eruca sativa'
Gastric ulcer is an illness that affects a considerable number of people worldwide. Although the introduction of proton-pump inhibitors to the classic anti-ulcer therapy has revolutionized treatment of peptic ulcers and other gastrointestinal disorders, there is still no complete cure for this disease.
More Antioxidant Current Events and Antioxidant News Articles
Nature Made Antioxidant Formula Softgels, 60-Count Bottles (Pack of 3)

Nature Made Antioxidant Formula Softgels, 60-Count Bottles (Pack of 3)
by Nature Made

Nature Made Antioxidant Formula 3-pack/60-count

The Antioxidant Miracle: Put Lipoic Acid, Pycnogenol, and Vitamins E and C to Work for You

The Antioxidant Miracle: Put Lipoic Acid, Pycnogenol, and Vitamins E and C to Work for You
by Lester Packer (Author), Carol Colman (Author)

Imagine there was an easy way you could keep your heart strong, your mind sharp, and your body youthful. Imagine this program could keep you young, improve your sex life, prevent cancer and heart disease, and keep your skin supple and wrinkle-free. And perhaps best of all, imagine this was something readily available at your local drugstore or natural food store. These and other benefits are the miraculous results of antioxidants. Lester Packer is the world's foremost authority on these natural healers. In The Antioxidant Miracle, he explains for the first time exactly how you can design a practical, personalized antioxidant program for disease prevention and optimal wellness.

The Antioxidant Miracle is the first popular book to reveal the full range of healing benefits of lipoic...

Weil Nutritional Daily Antioxidant for Optimum Health, Vegi-Caps, 60-Count Bottle

Weil Nutritional Daily Antioxidant for Optimum Health, Vegi-Caps, 60-Count Bottle
by Weil Nutritionals

Daily Antioxidant for Optimum Health by Weil Nutritional - 60 Vegetarian Capsules

Acai Berry Fruit Capsules- Easy to Swallow- Amazon Gold-now with 1200 Mg Per Serving-60 Capsules- Powerful Antioxidant- Great for Diet & Weight Loss

Acai Berry Fruit Capsules- Easy to Swallow- Amazon Gold-now with 1200 Mg Per Serving-60 Capsules- Powerful Antioxidant- Great for Diet & Weight Loss
by Amazon Gold

Powerful Antioxidant* Rainforest Grown. Acai is a dark purple berry indigenous to the Amazon rainforest, is a nutritious and powerful fruit, valued for its rich nutrients, including anthocyanins. Anthocyanins are naturally occurring plant compounds that give the berry its rich, dark color as well as provide antioxidant protection. With a high ORAC (oxygen-radical absorbance capacity) value - twice that of blueberries - Acai could be considered the berry of choice for good health.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent disease. No yeast, wheat, egg, soy, glutens, artificial colors, flavors, added sugar, preservatives

The Super Antioxidant Diet and Nutrition Guide: A Health Plan for the Body, Mind, and Spirit

The Super Antioxidant Diet and Nutrition Guide: A Health Plan for the Body, Mind, and Spirit
by Robin Jeep (Author), Sherie Pitman Ellington (Author), Richard Couey PhD (Author)

A diet rich in antioxidants helps prevent cancer, diabetes, arthritis, excessive weight gain, and premature aging. The Super Anti-oxidant Diet and Nutrition Guide is a total health plan that helps readers adopt and live a lifestyle that unlocks the natural power of antioxidants for superior health.

Gourmet chef and former marketing director for Whole Foods Market, Robin Jeep offers a plan that is reasonable, easy to follow and acknowledges that eating for whole health can include some meats, poultry, and fish. In addition to 171 Vibrant Cuisine recipes, the book also includes: Three weeks of high antioxidant, simple, easy-to-follow menus, including menus for people in need of an anti-inflammatory regime; a seven-fold plan that helps readers follow a super antioxidant diet for...

The Super Antioxidant Diet and Nutrition Guide: A Health Plan for the Body, Mind, and Spirit

The Super Antioxidant Diet and Nutrition Guide: A Health Plan for the Body, Mind, and Spirit
by Hampton Roads Pub Co

A diet rich in antioxidants helps prevent cancer, diabetes, arthritis, excessive weight gain, and premature aging. The Super Anti-oxidant Diet and Nutrition Guide is a total health plan that helps readers adopt and live a lifestyle that unlocks the natural power of antioxidants for superior health.

Gourmet chef and former marketing director for Whole Foods Market, Robin Jeep offers a plan that is reasonable, easy to follow and acknowledges that eating for whole health can include some meats, poultry, and fish. In addition to 171 Vibrant Cuisine recipes, the book also includes: Three weeks of high antioxidant, simple, easy-to-follow menus, including menus for people in need of an anti-inflammatory regime; a seven-fold plan that helps readers follow a super antioxidant diet for...

Protegra Antioxidant Formula Vitamin and Mineral Supplement Softgels, 60-Count Packages (Pack of 2)

Protegra Antioxidant Formula Vitamin and Mineral Supplement Softgels, 60-Count Packages (Pack of 2)
by Protegra

Vitamin & Mineral Supplement. Helps protect against cell damage and premature aging. With super-antioxidant Grape Seed Extract and Natural Vitamin E. SmartCare - Nutrition above and beyond the minimum. Vitamin E, C and A - Work together to help neutralize

Amazon Thunder-Organic Acai Berry Formula 500mg, 60ct

Amazon Thunder-Organic Acai Berry Formula 500mg, 60ct
by Amazon Thunder Inc.

Product Description "The ultimate solution for detoxing! Amazon Thunder Acai formulas are incredibly alkaline, perfect for detoxing and maintaining optimum health in balancing ph. Proud to be called the purest Organic & Kosher Acai in the world!Whole pulp pure concentrate and 100% pure Acai powder products, not reconstituted but 100% pure, 100% organic and 100% natural with NO PRESERVATIVES! Guarana free, caffeine free & water free, no added sugar & zero fillers! More health benefits than mangosteen, goji or noni! 2x the orac of blueberries, 30x that of red wine, 100x more potent than 4:1 powder Pure Acai pulp as advised by Dr Perricone! Why is Amazon Thunder Acai pulp a cut above the rest?Know the facts before you buy any Acai! Acai the way it's supposed to be, unrefined, 100% pure, 100%...

The Super Anti-Oxidants: Why They Will Change the Face of Healthcare in the 21st Century

The Super Anti-Oxidants: Why They Will Change the Face of Healthcare in the 21st Century
by James F. Balch (Author)

This book provides detailed information about various illnesses and how they can be prevented or cured through the use of anti-oxidants.

H2O Plus Green Tea Antioxidant Face Complex

H2O Plus Green Tea Antioxidant Face Complex
by H2O Plus

A powerfully hydrating, antioxidant complex that helps protect and calm sensitive skin from free radical damage, environmental exposure and dehydration. (#385) This moisturizer is the answer to those who have super sensitive skin as it combines Japanese green tea, Paraguay tea and algae extracts to help combat the signs of aging while calming irritated skin. Enriched with vitamin C, E and Provitamin B to help repair while providing soothing antioxidant protection for the skin.


Read what bloggers are saying about this product!

Benefits:This moisturizer is the answer to those who have super sensitive skin as it combines Japanese green tea, Paraguay tea and algae extracts to help combat the signs of aging while calming irritated skin. Enriched with vitamin C, E and...

© 2009 BrightSurf.com