Analysis of Antioxidant Capacity of Eight Common Wild Vegetables in Taiwan Flatland

• Main Authors: Feng-Hsu Li, 李豐旭
• Other Authors: Yak Hwa Kwang
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/b792hw

碩士 === 中原大學 === 化學研究所 === 107 === The correlation between antioxidant power and disease prevention has been extensively studied, and the intake of sufficient antioxidants can reduce the incidence of diseases. Antioxidant ability has a lot of research on common vegetables, fruits, Chinese medicine, etc. However, there are not many related studies on wild vegetables and weeds that are strong in vitality. The research direction is expected to find materials of useful value in the neglected materials. The following eight common roadside wild vegetables are selected: Portulaca oleracea, Bidens pilosa L. var. radiate Sch., Amaranthus viridis Linn, Mulberry Leaf, Ixeris chinensis Nakai, Hibiscus tiliaceus, Plantago asiatica. The purpose of this experiment is to compare test results in the same environment, reduce external factors such as seasonal and location disturbances, and achieve a more objective comparison. The results of the total combination test showed that the mulberry leaf extract obtained by stirring extraction had the best performance in DPPH, FRAP antioxidant capacity, total polyphenols, total flavonoids, condensed tannins and hydrolyzed tannins. The detection values of eight wild vegetables in the natural state of water , the DPPH ability was 7 mg/g, the FRAP antioxidant capacity was 103 mg/g, and the total polyphenol content was 8 mg. /g (Gallic acid), total polyphenol content of 1.0 mg / g (Quercetin), total condensed tannin content of 41 mg / g (Catechin), hydrolyzed tannin content of 10 mg / g (Tannic acid).