Antioxidant Activities of Various Extracts of Lotus (Nelumbo Nuficera Gaertn) Rhizome

Lotus rhizome powder was extracted with solvents of different polarities. Antioxidant activities of the extracts were evaluated by a 2, 2'-diphenylpicrylhydrazyl (DPPH) assay and a β-carotene bleaching assay, and compared with that of butylated hydroxyanisole (BHA) and ascorbic acid. Methanol showed the highest extract yield among all of solvents. Although acetone extract had the highest total phenolics content, methanol extract had the highest total phenolics recovery from lotus powder (20.1 mg catechin equivalents/100g lotus powder). Extract of either methanol or acetone demonstrated the highest DPPH scavenging activity at both 66.7 mg/L and 133.3 mg/L. All extracts exhibited higher antioxidant activity coefficient (AAC) than that of ascorbic acid, furthermore, dichloromethane and petroleum extracts had comparable AAC with BHA by the β-carotene bleaching assay. The properties of the extracting solvents significantly affected the yield, total phenolics content and antioxidant activity of lotus rhizome extracts.

並列關鍵字

lotus rhizome extracts ； total phenolics content ； antioxidant activity ； solvent polarity

被引用紀錄

彭日新（2010）。第一部分：桑葚萃取物降低四氯化碳、STZ、脂多醣體引起大鼠肝損傷之研究第二部分：探討N-去甲荷葉鹼致人類乳癌細胞 MCF-7 凋亡之作用〔碩士論文，中山醫學大學〕。華藝線上圖書館。https://doi.org/10.6834/CSMU.2010.00133

童慧珊（2008）。不同食材萃出物和類黃酮對大鼠初代肝細胞中pi屬麩胱甘肽硫轉移酶表現之探討〔碩士論文，中山醫學大學〕。華藝線上圖書館。https://doi.org/10.6834/CSMU.2008.00108

國際替代計量

Antioxidant Activities of Various Extracts of Lotus (Nelumbo Nuficera Gaertn) Rhizome

全文下載

主題瀏覽