Antioxidants polyphenolics

Cerda B, Llorach R, Ceron JJ, Espin JC and Tomas-Barberan FA. 2003b. Evaluation of the bioavailability and metabolism in the rat of punicalagin, an antioxidant polyphenol from pomegranate juice. Eur J Nutr 42(1) 18—28. 

DF and antioxidants are generally addressed separately as groups of food constituents in both chemical and nutritional studies. However, it is a little-known fact that a substantial proportion of the antioxidant polyphenols and carotenoids contained in fruit and vegetables are linked to DF (Saura-Calixto and others 2007), and some of the postulated benefits of fiber intake can be attributed to these associated compounds. These compounds are not bioaccessible in the human small intestine, but they... 

Because part of the total content of antioxidant polyphenols and carotenoids is linked to DF as noted previously, an appreciable proportion of the total antioxidant capacity in fruits and vegetables is associated with DF. 

Apart from vitamins, polyphenols and carotenoids are the main antioxidants. Polyphenols are the main contributors to TDAC (90%). Vitamins and carotenoids account for 10%. 

Carluccio, M.A., Siculella, L., Ancora, M.A., Massaro, M., Scoditti, E., Storelli, C., Visioli, F., Distante, A., and De Caterina, R., Olive oil and red wine antioxidant polyphenols inhibit endothelial activation antiatherogenic properties of mediterranean diet phytochemicals, Arterioscler. Thromb. Vase. Biol, 23, 622, 2003. 

Wang, H. et al., Antioxidant polyphenols from tart cherries (Prunus cerasus), J. Agric. Food Chem., 47, 840, 1999. 

POLYPHENOLS AS ANTIOXIDANTS Polyphenols as Chain-Breaking Antioxidants... 

White tea is especially potent in that it is has three times as much antioxidant polyphenols as green or black tea and has been shown to be 100% more effective in mopping up free radicals that cause skin to sag. Some of the world s top cosmetic companies are becoming very interested in white tea for skin creams, and the result is that high-grade white tea is becoming even more rare than before. 

The demand for healthy foods has led to the development of several entirely new healthy ingredient and additive categories (Heasman and Mellentin 2001 Sloan 2004). An entirely new sector of functional food ingredients has developed, including products such as omega-3 fatty acids and phytosterols for cardiovascular health, prebiotics and probiotics for gut health, antioxidants, polyphenols and phytochemicals, and bioactive peptides. The established vitamins and minerals sector has also benefited from this functional food trend, with more and more products being fortified with beneficial vitamins and minerals. 

Fukuda, T. Ito, H. Yoshia, T. 2003. Antioxidative polyphenols from walnuts (Juglans regia L.). Phytochem. 63 795-801. 

Lee, J.H. Talcott, S.T. 2004. Fruit maturity and juice extraction influences ellagic acid derivatives and other antioxidant polyphenolics in muscadine grapes J. Agric. Food Chem. 52 361-366. 

Even people who have been taking blood pressure-lowering drugs will benefit from this natural choice. And individuals who are determined to get their blood pressure down without drugs will benefit enormously. Tomato extract, which is rich in the antioxidant polyphenols lycopene, phytoene, and phytofluene, has been shown to reduce blood pressure for treated but not completely controlled hypertensive individuals, as well as for never-treated men and women in the category of prehypertension. Two studies have been done at the University of the Negev in Beer Sheva, Israel, by Dr. Esther Paran and her colleagues. 

C. Sanbongi, N. Osakabe, M. Natsume, et al. Antioxidative polyphenols isolated from theobroma cacao. Journal of Agricultural and Food Chemistry 46 (1998) 454-457. 

Camellia sinensis (green tea) contains caffeine and antioxidant polyphenols. It has been touted as being useful in a wide variety of conditions, including cancer prevention, mostly on relatively slim epidemiological evidence (1), cardiovascular disorders, and AIDS. 

Second, plant compounds called phytochemicals are nonnutrient components of plant foods that may impart health benefits, similar to the pigment antioxidant polyphenols, on the basis of which nearly all superfruit juices are promoted with eye-catching advertisements. Because these phytochemicals await final scientific proof of what they really do in the human body, they are regarded neither as nutrients nor as essential to health. 

The amounts of polyphenols increased during the years of study for both Lemongrass, from 3 to 5%, and Lippia, which increased from 3 to 6%. Germplasm selection and processing techniques (e.g. improved drying) produced an increment of antioxidant polyphenols in Lippia for 2006 (4). 

Green tea contains antioxidant polyphenols which can reduce the risk of a number of diseases... 

Antioxidant plant polyphenols have received increasing attention of late owing to their multifunctional properties, which have been shown to be beneficial to human health. Antioxidant polyphenols are believed to reduce the risk of chronic diseases such as cancer, diabetes, and coronary heart disease. As each of these diseases is associated with long-term accumulation of cellular damage due to oxidative stress, the antioxidant and free radical scavenging activities of polyphenols are believed to underlie the beneficial actions of these substances in humans. 

FUKUDA, T., ITO, H., YOSHIDA, T., Antioxidative polyphenols from walnuts Juglans regia L.), Phytochemistry, 2003, 63, 795-801. 

---