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Articles by N. Kaewseejan
Total Records ( 2 ) for N. Kaewseejan
  D. Puangpronpitag , S. Chaichanadee , W. Naowaratwattana , C. Sittiwet , K. Thammasarn , A. Luerang and N. Kaewseejan
  The present study determined nutritional value in various parameters such as moisture content, carbohydrate, protein, lipid as standard methods and evaluated the antioxidative properties of the medicinal plant Gynura procumbens Extract by hydroxyl scavenging activity, ferrous ion-chelating activity and inhibition of lipid peroxidation. The highest extraction yield was obtained from extraction with distilled water (84.51%). While, Ethanolic Gynura extract (EGE) exhibited the highest in the antioxidative properties in every assay, EC50 = 1.63 in hydroxyl scavenging test, EC50 = 2.17 in chelating activity test and EC50 = 2.75 in inhibition of lipid peroxidation test. Although, the content still low (186.25±0.00018 to 300.18±0.0003 μg GAE g-1 of extract). According determination the nutritional values was found that Gynura procumbens Extract were containing the contents of moisture was 7.08%, carbohydrate was 0.0537 to 0.1968 μg glucose equivalent/100 g dry weight at EGE 0.1 μg mL-1, protein was 4.51 g/100 g dry weight and lipid was 0.023 g/100 g dry weight. These results suggest that Gynura Extract is a good protein source and that they may have positive effects on free radical scavenging and iron chelating which may use as preliminary information and develop further to be commercially useful in food industry or health products as medicinal food.
  N. Kaewseejan , D. Puangpronpitag and M. Nakornriab
  Gynura procumbens is one of the important medicinal plants in Thailand and Southeast Asia. It is usually used as a traditional medicine for the treatment of inflammation, herpes simplex virus, rashes, fever, rheumatism, kidney disease, migraines, constipation, diabetes mellitus, cancer and hypertension. The present study was to screen phytochemical compositions of ethanol extract of Gynura procumbens leaves such as chlorophylls, carotenoids, alkaloids, saponins, anthraquinone glycosides, volatile oils as standard methods and to evaluate the antibacterial activity by using agar well diffusion method. Phytochemical analysis revealed the contents of chlorophyll-a, b and carotenoids in ethanolic Gynura extract were 365.20±0.049, 132.40±0.029 and 53.20±0.034 μg g-1 dry weight, respectively. Moreover, the ethanolic Gynura extract showed the presence of alkaloids and volatile oils, whereas saponins and anthraquinone glycosides were absent. According to determination the antibacterial activity was found that Gynura procumbens showed as negative effects in all bacteria’s tested. These results suggest that Gynura extract is a good natural source of bioactive compounds and that they may have beneficial health effects for consumption which may use as preliminary information and could be further studied for uses in food industry, health product, pharmaceutical and medicinal applications.
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