알킬갈레이트 유도체의 어병세균 Edwardsiella tarda와 Vibrio anguilarum에 대한 항균활성 및 항생제와의 병용효과
Antimicrobial Activities of Alkyl Gallates Alone and in Combination with Antibiotics Against the Fish Pathogenic Bacteria Edwardsiella tarda and Vibrio anguillarum
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초록
Methyl gallate isolated from bark of the tree Rhus verniciflua Stokes has significant antimicrobial activity against the fish pathogenic bacteria Edwardsiella tarda and Vibrio anguillarum. To evaluate the antimicrobial activity of gallate derivatives, eight alkyl gallates were tested. Ethyl gallate and propyl gallate had the highest activities, with MICs of 15.6-31.3μg/mL against E. tarda. For V. anguillarum, propyl gallate and butyl gallate were highly effective, with MICs of 7.81-31.3μg/mL. When used in combination with antibiotics, methyl gallate exhibited synergistic effects with oxytetracycline against E. tarda and with norfloxacin against V. anguillarum. These results suggest that short-chain alkyl gallates can be used as alternatives to antibiotics against the fish pathogenic bacteria.
Abstract
Methyl gallate isolated from bark of the tree Rhus verniciflua Stokes has significant antimicrobial activity against the fish pathogenic bacteria Edwardsiella tarda and Vibrio anguillarum. To evaluate the antimicrobial activity of gallate derivatives, eight alkyl gallates were tested. Ethyl gallate and propyl gallate had the highest activities, with MICs of 15.6-31.3μg/mL against E. tarda. For V. anguillarum, propyl gallate and butyl gallate were highly effective, with MICs of 7.81-31.3μg/mL. When used in combination with antibiotics, methyl gallate exhibited synergistic effects with oxytetracycline against E. tarda and with norfloxacin against V. anguillarum. These results suggest that short-chain alkyl gallates can be used as alternatives to antibiotics against the fish pathogenic bacteria.
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