made from plants‚ which means it contains many of the health benefits of dark vegetables. These benefits are from flavonoids‚ which act as antioxidants. Antioxidants protect the body from aging caused by free radicals‚ which can cause damage that leads to heart disease. Dark chocolate contains a large number of antioxidants (nearly 8 times the number found in strawberries). Flavonoids also help relieve high blood pressure through the production of nitric oxide‚ and balance certain hormones in the
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THE PROBLEM AND REVIEW OF RELATED LITERATURE AND STUDIES Introduction Everyone is naturally pre-determined to have an offspring. This would just exist in a relationship of a man and woman. It is not always true in a relationship if there is a new life that will be formed. Several factors may contribute to the hindrances in the formation of new life especially to man because male (sperm) gamete is the one responsible to initiate fertilization‚ the union of male (sperm) and female (ovum) gametes
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nitric oxide assay method has been performed at different doses (100-500 mg). The total phenolic contents and total flavonoid contents have also been determined. The results of the present study shows that the aqueous extract of TBB possess antioxidant activity through the DPPH free radical scavenging activity. The preliminary phytochemical investigation indicates the presence of flavonoids and polyphenols. The results are found to be significant when compared with the standard ascorbic acid. Further
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These extracts have shown dose and time dependent superoxide scavenging activity. Flavonoidal content was also found to be high in both of these extracts. Flavonoids are well known for antioxidant activity. This suggests that any drug/extract containing estrogenic property with flavonoids (non-steroidal phytoestrogen) might be better anti-fertile. Ethanolic extract with higher flavonoidal content was found to be more potent then aqueous extract. As well the activity is
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acetate. 8 % of methanol and 92 % of ethyl acetate concentration was found to be the best concentration and after concentrating all fractions of these concentrations‚ approximately 7 to 8 mg of quercetin was obtained. 4.2 Thin layer chromatography TLC profiles were carried out for the fractions‚ performed using the solvent mixture of toluene: ethyl acetate: methanol in the ratio of 5:3:2 (v/v/v) and this mobile phase enabled excellent separation of the bioactive compound. The results showed that
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CHAPTER 1: INTRODUCTION 1. Background of the Study Apples are an excellent source of phytonutrients. These phytonutrients include phenolic acid and flavonoids. These nutrients protect the apple against bacteria‚ viruses and fungi. These benefits can be transferred into the human body when consumed. They provide antioxidants which protect against cancer and help to repair cell damage. Other benefits gleaned from the consumption of apples are the reduction in the risk of heart disease‚ diabetes
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antimicrobial activity of alkaloids‚ tannins‚ saponins‚ flavonoids‚ phenol and cardic glycoside present in the various parts of Chrysophyllum albidium plant were investigated. These phytochemical were determined quantitatively and tested against staphylococcus aureus‚ B. subtilis‚ pseudomonas aeruginosa‚ E. coli‚ C. tetani‚ and the fungus; candida albicans. Most the plant parts were found to contain alkaloids‚ tannins‚ phenols and flavonoids except for the absence of cardic glycosides in the root
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CH 223 - Organic Chemistry Laboratory I Experiment #6 - Column and Thin-Layer Chromatography (TLC) of a Spinach Extract Pre-Lab Assignment (1) List 5 ways that TLC can be used in an organic chemistry lab experiment. To identify an unknown‚ to monitor the course of a reaction and assess the purity of its product‚ to determine the best solvent for a column chromatography separation‚ to determine the somposition of each fraction from a column chromatography separation‚ and to determine whether
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1997; Hobert and Tietze‚ 1998). Guava is rich in tannins‚ phenols‚ triterpenes‚ flavonoids‚ essential oils‚ saponins‚ carotenoids‚ lectins‚ vitamins‚ fiber and fatty acids. Guava fruit is higher in vitamin C than citrus (80 mg of vitamin C in 100 g of fruit) and contains appreciable amounts of vitamin A as well. Guava fruits are also a good source of pectin - a dietary fiber. The leaves of guava are rich in flavonoids‚ in particular‚ quercetin. Much of guava’s therapeutic activity is attributed to
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cultivated in tropical and subtropical areas. It contains many fractions characterized by their bioactivity and efficacy to enhance biological activities. The aim of the present study was to fingerprinting the Cajanus cajan plant ‚ then extract the flavonoids fraction (FFCC) with methanol extract‚ and assess the antimutagenic efficacy of the fraction extract to reduce genotoxicity induced by cyclophosphamide (CP) using chromosome aberrations‚ in mice bone-marrow cells and spermatocytes‚ and DNA damage
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