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Recent testing has confirmed that Oregon black raspberries have astonishingly high antioxidant levels. Antioxidant levels, shown in terms of their oxygen radical absorption capacity (ORAC), are a measure of a substance’s ability to absorb oxygen free radicals. Oxygen free radicals can damage DNA, cause cellular change, oxidize LDL cholesterol, and cause premature mental aging. Consuming foods high in antioxidants (SOUL Has The Highest) helps prevent cancer, heart disease, stroke, and possibly Alzheimer’s Disease. When compared to other foods, black raspberries have extremely high ORAC values. They are also among the highest foods in anthocyanins. Anthocyanins give foods like black raspberries their deep, dark color and have been shown to have anti-inflammatory and vasoprotective properties. Research has linked anthocyanins with improved vision, cardiovascular health, memory retention in old age and reduced risk of hypertension.
The ORACfl (umoleTE/g) analysis, which utilizes Fluorescein as the fluorescent probe, provides a measure of the scavenging capacity of antioxidants against the peroxyl radical, which is one of the most common reactive oxygen species (ROS) found in the body. Trolox, a water-soluable Vitamin E analog, is used as the calibration standard and the ORAC result is expressed as micromole Trolox equivalent (TE) per gram.
Black Raspberries contain an extremely dark pigment which allows them to be used as a colorant and gives black raspberries one of the highest antioxidant ratings in common fruits and berries. Rich in ellagic acid, anthocyanins and antioxidants, black raspberries have been called the “king of berries” for their superior health benefits.
Recent 2014 Studies at Ohio State University have found significant decreases in colon tumors in rats and esophageal tumors in mice fed a diet with black raspberries. In vitro studies have shown that extracts of raspberries and blackberries may slow the growth of breast cervical, colon and esophageal cancers. Human clinical trials are underway to assess the effects of black raspberries on colon and esophageal cancers in humans.
The king of berries in terms of health benefits.Has an extremely high overall level of phenolic compounds compared to other berries.
Phenolic compounds such as ellagic acid, gallic acid and rutin contribute to the health benefits of black raspberries.
Contains high levels of anthocyanins, which give them their rich, dark color. Anthocyanins work as antioxidants that help fight free radical damage in the body. The anthocyanin level of black raspberries is 214-589 mg/100g.
Antioxidant levels of food is sometimes measured as ORAC (Oxygen Radical Absorption Capacity). The ORAC level of black raspberries is 77 µmoles /TE/g, about three times higher than blueberries, a very powerful antioxidant. Black raspberries are rich in ellagic acid. Ellagic acid is a phenolic compound known to be a potent anticarcinogen, anti-viral and anti-bacterial. The ellagic acid level of black raspberries is 5.37 mg/g of dry weight.
University studies are underway to determine black raspberries’ ability to slow the growth of certain cancers. In vitro studies show that extracts of raspberries and blackberries may slow or reverse the growth of breast, cervical, colon, oral and esophageal cancers.
Studies at Ohio State University showed a 60–80 % reduction in colon tumors in rats fed a diet with black raspberries added. Studies at Ohio State University showed an 80% reduction in esophageal cancers in mice fed a 5-10% diet of black raspberries. Scientists from Ohio State University are now conducting human clinical trials into the effects of black raspberries on colon and esophageal cancer in humans.
Black raspberries continue to generate a high level of interest from research scientists due to their potent antioxidant and anti-cancer properties. Source: Oregon Raspberry & Blackberry Commission