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      Resveratrol in Peanuts

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      Journal: Critical Reviews in Food Science and Nutrition
      Publisher: Informa UK Limited

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          Abstract

          Peanuts are important dietary food source of resveratrol with potent antioxidant properties implicated in reducing risk of cancer, cardiovascular and Alzheimer's disease, and delaying aging. Resveratrol is a naturally occurring stilbene phytoalexin phenolic compound produced in response to a variety of biotic and abiotic stresses. This paper is a review of trans-resveratrol and related stilbenes from peanuts--their chemical structures, mechanisms for their biosynthesis, and concentrations in comparison with other major food sources. It will also discuss trans-resveratrol's absorption, bioavailability, and major health benefits; processes to enhance their biosynthesis in peanuts by biotic and abiotic stresses; process optimization for enhanced levels in peanuts and their potential food applications; and methods used for its extraction and analysis.

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          Plant foods and herbal sources of resveratrol.

          Jennifer N Burns, Takao Yokota, Hiroshi Ashihara … (2002)
          Stilbenes, in particular trans-resveratrol and its glucoside, are widely reported to be beneficial to health, having been shown to possess antioxidative, anticarcinogenic, and antitumor properties. Major dietary sources include grapes, wine, peanuts, and soy; however, they can also be introduced into the diet through Itadori tea, which has long been used in Japan and China as a traditional herbal remedy for heart disease and strokes. Analysis of grapes, peanuts, and Itadori tea shows that they contain mainly trans-resveratrol glucoside. In contrast, red wines are primarily a source of the aglycones cis- and trans-resveratrol. While peanuts and grapes contain low levels of the stilbenes, Itadori tea and red wine both supply relatively high concentrations of resveratrol. For people who do not consume alcohol, Itadori tea may be a suitable substitute for red wine. However, further study on the potential biological effects of other endogenous compounds in Itadori tea is required and there is also a need for more information on the absorption and in vivo biomedical actions of free and conjugated resveratrol.
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            Resveratrol promotes clearance of Alzheimer's disease amyloid-beta peptides.

            Philippe Marambaud, Haitian Zhao, Peter H. Davies (2005)
            Several epidemiological studies indicate that moderate consumption of wine is associated with a lower incidence of Alzheimer's disease. Wine is enriched in antioxidant compounds with potential neuroprotective activities. However, the exact molecular mechanisms involved in the beneficial effects of wine intake on the neurodegenerative process in Alzheimer's disease brain remain to be clearly defined. Here we show that resveratrol (trans-3,4',5-trihydroxystilbene), a naturally occurring polyphenol mainly found in grapes and red wine, markedly lowers the levels of secreted and intracellular amyloid-beta (Abeta) peptides produced from different cell lines. Resveratrol does not inhibit Abeta production, because it has no effect on the Abeta-producing enzymes beta- and gamma-secretases, but promotes instead intracellular degradation of Abeta via a mechanism that involves the proteasome. Indeed, the resveratrol-induced decrease of Abeta could be prevented by several selective proteasome inhibitors and by siRNA-directed silencing of the proteasome subunit beta5. These findings demonstrate a proteasome-dependent anti-amyloidogenic activity of resveratrol and suggest that this natural compound has a therapeutic potential in Alzheimer's disease.
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              Resveratrol as an anti-inflammatory and anti-aging agent: mechanisms and clinical implications.

              C. Lastra, Isabel Villegas (2005)
              Resveratrol is a phytoalexin polyphenolic compound found in various plants, including grapes, berries, and peanuts. Multiple lines of compelling evidence indicate its beneficial effects on neurological, hepatic, and cardiovascular systems. Also one of the most striking biological activities of resveratrol soundly investigated during the late years has been its cancer-chemopreventive potential. In fact, recently it has been demonstrated that this stilbene blocks the multistep process of carcinogenesis at various stages: tumor initiation, promotion, and progression. One of the possible mechanisms for its biological activities involves downregulation of the inflammatory response through inhibition of synthesis and release of pro-inflammatory mediators, modification of eicosanoid synthesis, inhibition of activated immune cells, or inhibiting such as inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) via its inhibitory effects on nuclear factor (kappa)B (NF-(kappa)B) or the activator protein-1 (AP-1). More recent data provide interesting insights into the effect of this compound on the lifespan of yeast and flies, implicating the potential of resveratrol as an anti-aging agent in treating age-related human diseases. It is worthy to note that the phenolic compound possesses a low bioavailability and rapid clearance from the plasma. As the positive effects of resveratrol on inflammatory response regulation may comprise relevant clinical implications, the purpose of this article is to review its strong anti-inflammatory activity and the plausible mechanisms of these effects. Also, this review is intended to provide the reader an up-date of the bioavailability and pharmacokinetics of resveratrol and its impact on lifespan.
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                Author and article information

                Journal
                Title: Critical Reviews in Food Science and Nutrition
                Abbreviated Title: Critical Reviews in Food Science and Nutrition
                Publisher: Informa UK Limited
                ISSN (Print): 1040-8398
                ISSN (Electronic): 1549-7852
                Publication date Created: December 17 2013
                Publication date Created: January 2014
                Publication date (Electronic): December 17 2013
                Publication date (Print): January 2014
                Volume: 54
                Issue: 6
                Pages: 734-770
                Article
                DOI: 10.1080/10408398.2011.606928
                PubMed ID: 24345046
                SO-VID: 84637165-f9a6-4e8b-8499-2ba9873a713f
                Copyright © © 2014
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