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作 者:Pimporn Leelapompisid Dammrong Santlawom Suchart Punjaisri Tanya Sonthikun
机构地区:[1]Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand [2]Division of Microbiology, Faculty of Associated Medical Science, Chiang Mai University, Chiang Mai 50200, Thailand
出 处:《Journal of Chemistry and Chemical Engineering》2012年第4期307-312,共6页化学与化工(英文版)
摘 要:This study aimed to determine the antimicrobial activity of beehive extract and developed topical antimicrobial gel. The beehives were extracted with three different solvents: distilled water, 50% ethanol and 95% ethanol, then each filtrate was evaporated by vacuum rotary evaporator to obtain crude extracts: water extract (W), water-ethanol extract (WE) and ethanol extract (E). These extracts were tested for their antimicrobial activity against five bacterial strains: Escherichia coli (ATCC 25922), Psuedomonas aeuruginosa (ATCC 27853), Staphylococcus aureus (ATCC 25923), Methicillin Resistance Staphylococcus aureus (MRSA) and β-hemolytic Streptococcus group A (GAS), then they were evaluated for their MIC and MBC values. The results revealed that the yield of the W, WE and E extracts amounted to 16.25%, 14.42% and 6.67%, respectively. Whereas, all of the samples were found to be effective against P. aeuruginosa, S. aureus, MRSA and GAS, but they were ineffective against E. coli. The W extract exhibited the highest antimicrobial activity with MIC values of 31.25-62.50 mg/mL and MBC values of 62.50 mg/mL. Then the gel bases using different gelling agents such as carbopol, hydroxyethylcellulose (HEC) and hydroxypropyl methylcellulose (HPMC) were formulated and evaluated for their physical properties: appearance, texture, pH, spread ability and stability. The formula which contained HEC was selected to incorporate with the W extract due to its smooth texture, good spreadability on the skin and good stability. The W gel exhibited a promising antimicrobial activity in both before and after stability test and also expressed no skin irritation.
关 键 词:Beehive extract antibacterial activity agar diffusion method broth dilution method antimicrobial gel.
分 类 号:TS202.3[轻工技术与工程—食品科学] S859.796[轻工技术与工程—食品科学与工程]
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