Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/61882
標題: Antibacterial activity of Melastoma candidum D. Don
作者: Wang, Y.C.
王苑春
Hsu, H.W.
Liao, W.L.
關鍵字: Melastoma candidum D. Don
Bactericidal activity
Thermal stability
antimicrobial activity
extracts
flavonoids
protamine
leaves
期刊/報告no:: Lwt-Food Science and Technology, Volume 41, Issue 10, Page(s) 1793-1798.
摘要: Melastoma candidum D. Don is a plant of the Melastomataceae family that has been used as folk medicine in Taiwan. In this study, the antibacterial activity of M. candidum extracts was investigated. Water, acetone, ethanol (95 ml/100 ml), and ethyl acetate extracts of M. candidum exhibited antibacterial activity, especially the acetone and ethanol (95 ml/100 ml) extracts. Over one-third of MICs for those two extracts were close to or equal to that of amoxicillin. MICs and minimum bactericidal concentrations (MBCs) for the acetone extract were 0.02-0.64 mg/ml and 0.08-2.56 mg/ml, respectively; while for the ethanol (95 ml/100 ml) extract, corresponding values were 0.04-1.28 mg/ml and 0.16-5.12 mg/ml, respectively. The acetone M. candidum extract exhibited good thermal stability subsequent to heating from 70 to 121 degrees C for 15-60 min; further, no dramatic changes in the MICs in a range of pH 5-8 were noted. Overall, M. candidum acetone extract revealed a good bactericidal effect, good thermal stability (heating at 121 degrees C for 15 min), and broad antibacterial activity in the pH range of 5-8. (C) 2008 Published by Elsevier Ltd on behalf of Swiss Society of Food Science and Technology.
URI: http://hdl.handle.net/11455/61882
ISSN: 0023-6438
文章連結: http://dx.doi.org/10.1016/j.lwt.2008.02.005
Appears in Collections:食品暨應用生物科技學系

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