Evaluation of Antioxidant and Antibacterial Activities of Aqueous, Methanolic and Alkaloid Extracts from Mitragyna Speciosa (Rubiaceae Family) Leaves
作者: Suhanya ParthasarathyJuzaili Bin AziziSurash RamanathanSabariah IsmailSreenivasan SasidharanMohd I. Mohd. SaidSharif Mahsufi Mansor
刊名: Molecules, 2009, Vol.14 (10), pp.3964
来源数据库: Directory of Open Access Journals
关键词: Mitragyna speciosaantioxidantantibacterial
原始语种摘要: Studies on the antioxidant and antimicrobial activities of Mitragyna speciosa leaf extracts are lacking. In this study the antioxidant properties of water, methanolic and alkaloid M. speciosa leaf extracts were evaluated using the DPPH (2,2-diphenyl-1- picrylhydrazyl) radical scavenging method. The amount of total phenolics and flavanoid contents were also estimated. The DPPH IC50 values of the aqueous, alkaloid and methanolic extracts were 213.4, 104.81 and 37.08 μg/mL, respectively. The total phenolic content of the aqueous, alkaloid and methanolic extracts were 66.0 mg, 88.4, 105.6 mg GAE/g, respectively, while the total flavanoid were 28.2, 20.0 and 91.1 mg CAE/g respectively. The antioxidant activities were correlated with the total phenolic content. This result suggests that the...
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影响因子:2.428 (2012)

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关键词翻译
关键词翻译
  • extracts 摘记
  • alkaloid 生物碱
  • flavanoid 黄烷类
  • antioxidant 抗氧化剂
  • phenolic 苯酚的
  • antimicrobial 杀菌剂
  • scavenging 扫气
  • radical 
  • aqueous 水的
  • total 总和