Antioxidants and the ORAC Tests
Posted by Susan Lutfallah on June 7, 2009
Briefly, ORAC, short for Oxygen Radical Absorbance Capacity, is a testing method developed by the U.S.D.A. and Tufts University to quantitatively measure the potency of antioxidants found in foods and beverages – generally speaking, foods that score high in the ORAC antioxidant assay may protect cells and their components from damage by oxygen radicals. Free radicals are nasty chemicals and metabolic by-products that go around wreaking havoc on your body by damaging DNA, structural proteins (e.g. muscle, skin), bones, and they can even accelerating aging! Antioxidants can ‘scavenge’ the free-radicals and render them harmless – that is, they neutralize them.
Recently, an ORAC test was conducted by Brunswick Laboratories on ‘muzi’ matcha green tea, and the results demonstrated that the antioxidant complement of matcha tea is exponentially greater than all hitherto known foods and beverages – staggeringly, ‘muzi’ matcha tea scored a whopping 1348 ORAC units per gram, and thus surpassed all antioxidant rich foods identified by the USDA by a magnitude of greater than 20! Again, when compared to other premium green teas, matcha contains approximately 10 to 15 times the antioxidants per serving.
Moreover, matcha contains a host of unique antioxidants – for example, EGCg, or epigallocatechin gallate, is a unique set of polyphenols that help to scavenge free radicals from the body, and they are currently the center of attention by many biochemical researchers and epidemiologists. In fact, a recent study conducted at the University of Colorado at Colorado Springs suggested that matcha green tea contained over 137 times the EGCg (epigallocatechin gallate) levels of popular tea bag green teas. Furthermore, matcha contains polyphenols EGC (epigallo catechins), ECG (epicatechin gallate), and EC (epicatechins) all of which have a significantly stronger antioxidant effect than EGCg alone when working in synergy.
Now that you’ve learned about the extensive array of potent antioxidants found in matcha tea, and here’s a list of all the wonderful things antioxidants do for your body:
– Helps inhibit growth of cancer cells
– Reduce high blood pressure.
– Protection against getting a stroke.
– Improved blood flow to the heart.
– Reduce cholesterol.
– Helps inhibit the formation of blood clots in artery walls.
– Maintains even blood sugar levels.
– Lowers the risk for osteoporosis.
– Enhances immune function and helps fight infections.
– Inhibits the growth of bacteria that can cause gum disease, cavities, and bad breath.