- 期刊
樹番茄抗氧化活性之探討
Study on Antioxidative Activity of Cyphomandra betacea
摘要
樹蕃茄（Cyphomandra betacea）果實呈卵形，果皮為紅色，果肉橙黃色，較一般蕃茄稍硬，風味甜中帶酸。曾有文獻證實，常食用蕃茄與其相關產品能有效預防癌症與心血管疾病。因此，本研究以嘉義縣阿里山鄉所產之樹蕃茄為材料，探討其各溶劑萃取物（水及95%乙醇）之抗氧化活性。兩者萃取率分別為52%及28%。於5mg/mL劑量下，乙醇萃取物清除DPPH自由基能力高達94%，總抗氧化能力可展現94%以上之活性，皆優於水萃取物。機能性成分含量亦以乙醇萃取物較高，其花青素、總酚及類黃酮化合物含量分別為74.7mg/100g、20.2mg/g及5.9mg/g。統計分析顯示，乙醇萃取物之總酚及類黃酮化合物與其抗氧化能力呈高度相關性（p＜0.05）。綜合以上，樹蕃茄為一具有高抗氧化能力之食品原料。
並列摘要
Cyphomandra betacea, which has oval fruits, red peels and orange pulps, is harder than tomato slightly. It tastes not only sweet but also sour. According to records, people who ingesting tomato fruits or its correlative products frequently could prevent cancer and cardiovascular disease. For this reason, this study is aimed to evaluate the antioxidative activity of Cyphomandra betacea which applied in this research is from Alishan township, Chiayi country. The extract solvents are water and 95 % ethanol. The result indicated that the DPPH free radical scavenging ability from ethanol extract was up to 94 % while its concentration is 5 mg/mL, scavenging ability o f ABTS+ free fadical could reaches above 94 % , both were better than water extracts. With regard to antioxidant constituent assay, the anthocyanin, total phenolic and flavonoids contents o f ethanol extract presents higher than water extract that are 74.7 mg/100g, 20.2 mg/g and 5.9 mg/g, respectively. Statistical analysis showed that the ethanoi extracts phenolic and flavonoids contents has high correlation with its antioxidative ability (p ＜0.05). The study results provide that Cyphomandra betacea is a food material which has good antioxidative ability.