oxygen radical absorbance capacity


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oxygen radical absorbance capacity

An in vitro method of measuring the antioxidant capacities of biological samples (e.g., spices, berries and legumes). The in vivo validity of antioxidant measures is uncertain and may not be relevant to human diets or biology; it is illegal in the US and the EU to imply health benefits on package labels of products with high ORACs.

ORACs, most absorbant
28,000—Cocoa beans (raw, unprocessed), 100 g.
16,100—Chokeberry, 100 g.
13,700—Small red beans, ½ cup dried.
13,400—Wild blueberry, 1 cup.
13,300—Red kidney bean, ½ cup dried.
11,900—Pinto bean, ½ cup dried.
9000—Blueberry, 1 cup.
9000—Cranberry, 1 cup.
7900—Artichoke hearts, 1 cup.
7700—Blackberry, 1 cup.
References in periodicals archive ?
As shown in Table 3, malondialdehyde(MDA; lipid peroxidation marker) levels were elevated in the kidneys of diabetic control rats whereas oxygen radical absorbance capacity (ORAC) values were reduced compared to non-diabetic control.
This panel of assays has led to the term, Oxygen Radical Absorbance Capacity using Multiple Radicals (ORAC-MR), which is a sum of the antioxidant capacity against six of the most predominant reactive species found in the human body: ROS (peroxyl radical, hydroxyl radical, superoxide anion, singlet oxygen), RNS (peroxynitrite) and RCS (hypochlorite).
The standard index for determining the antioxidant value of various organic compounds is known as oxygen radical absorbance capacity, or ORAC.
Both hydrophilic and lipophilic oxygen radical absorbance capacity (ORAC) assays were carried out at Brunswick Laboratory (Wareham, MA) based on the modified [ORAC.
Measurement of oxygen radical absorbance capacity in biological samples.
Why did the USDA remove the Oxygen Radical Absorbance Capacity (ORAC) database last year?
The antioxidant potential of the extracts was determined using the oxygen radical absorbance capacity (ORAC) assay, which measures the antioxidant capacities of different foods.
ORAC -- short for Oxygen Radical Absorbance Capacity -- measures the ability of foods, blood plasma, and just about any substance to subdue oxygen free radicals in the test tube.
Bloomer and scientists from the University of Memphis showed Ambrotose AO capsules (four capsules/day for three weeks) significantly increased two measures of antioxidant capacity -- Oxygen Radical Absorbance Capacity (ORAC) and Trolox Equivalent Antioxidant Capacity (TEAC) -- in the blood of 25 healthy men and women at rest.
The teas carry Brunswick Lab's ORAC seal, attesting to their oxygen radical absorbance capacity, a testing method developed by the USDA and Tufts University to quantifiably measure the potency of antioxidants found in foods and beverages that protect cells and their components from damage by oxidative stress, a major factor in the progression of aging.
After these treatments were completed, the juice was clarified by centrifugation and analyzed for its vitamin C content using the 2,6-dicloroindophenol titration method; for its antioxidant capacity using the oxygen radical absorbance capacity technique; for its total soluble phenolics using the Folin assay; and for its turbidity and color L * a * b * values.
COPPELL, Texas -- Mannatech, Incorporated (NASDAQ: MTEX), a global pioneer in the development of high-quality health, weight and fitness, and skin care solutions based on nutritional science, announced the results of an independent human clinical study that demonstrated intake of its proprietary Ambrotose AO([R]) capsules raised antioxidant protection in serum oxygen radical absorbance capacity (ORAC) in healthy adults, further validating a previous human study.