Posts Tagged “antioxidant”
By American Chemical Society
Jong-Sang Kim and colleagues note that people have used garlic for medicinal purposes for thousands of years. Today, people still celebrate its healthful benefits. Eating garlic or taking garlic supplements is touted as a natural way to reduce cholesterol levels, blood pressure and heart disease risk. It even may boost the immune system and help fight cancer. But those benefits are for fresh, raw garlic. Sprouted garlic has received much less attention.
When seedlings grow into green plants, they make many new compounds, including those that protect the young plant against pathogens. Kim’s group reasoned that the same thing might be happening when green shoots grow from old heads of garlic. Other studies have shown that sprouted beans and grains have increased antioxidant activity, so the team set out to see if the same is true for garlic.
They found that garlic sprouted for five days had higher antioxidant activity than fresher, younger bulbs, and it had different metabolites, suggesting that it also makes different substances. Extracts from this garlic even protected cells in a laboratory dish from certain types of damage. “Therefore, sprouting may be a useful way to improve the antioxidant potential of garlic,” they conclude.
The authors acknowledge funding from the IPET High Value-Added Food Technology Development Program.
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 161,000 members, ACS is the world’s largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.
There has long been research — both anecdotal and data-based — suggesting a positive link between the eating of fruits and vegetables and healthy outcomes, including disease prevention.
The National Mango Board is working to pursue the connection, specifically with mangos, and has some research on its side. The board is publicizing early results of some studies and refining the nutrition message as it promotes mango and green papaya salad.
New mango nutrition research on obesity and cancer are the subjects recently presented at the Federation of American Societies for Experimental Biology in Boston. The research identifies important findings that merit further investigation to determine whether mangos can potentially have a positive effect on blood sugar in obese individuals and help to limit inflammation.
An Oklahoma State University study examined the effects of daily mango consumption on the obese. Twenty adults participated in the study, consuming significant amounts of mangos in a dried form for 12 weeks. Blood sugar levels at the conclusion of the study were significantly lower than the baseline in both male and female subjects, but there were no significant changes in body composition for either gender.
Texas A&M had another study on the effects of polyphenols found in fresh mangos on cancerous and non-cancerous breast cells, which were examined. This study suggests that mango polyphenols might limit inflammatory response in both cancerous and non-cancerous breast cells. Because this was an in vitro study, more research is needed to determine whether mango polyphenols can have the same effect in humans.
The National Mango Board is actively marketing the nutrition message, which claims that mangos are a nutrient-rich fruit containing more than 20 different vitamins and minerals. The NMB states that mangos are an excellent source of the antioxidant vitamins C and A. Vitamin C is important for wound healing and immune function; and vitamin A is critical for vision and helps maintain healthy skin.