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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제29권 제8호
- 발행연도
- 2019.1
- 수록면
- 1,177 - 1,183 (7page)
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Grapefruit seed extract (GSE) is a safe and effective preservative that is used widely in the food industry. However, there are few studies addressing the anti-biofilm effect of GSE. In this study, the anti-biofilm effect of GSE was investigated against biofilm-forming strains of Staphylococcus aureus and Escherichia coli. The GSE minimum inhibitory concentration (MIC) for S. aureus and E. coli were 25 μg/ml and 250 μg/ml, respectively. To investigate biofilm inhibition and degradation effect, crystal violet assay and stainless steel were used. Biofilm formation rates of four strains (S. aureus 7, S. aureus 8, E. coli ATCC 25922, and E. coli O157:H4 FRIK 125) were 55.8%, 70.2%, 55.4%, and 20.6% at 1/2 × MIC of GSE, respectively. The degradation effect of GSE on biofilms attached to stainless steel coupons was observed (≥ 1 log CFU/coupon) after exposure to concentrations above the MIC for all strains and 1/2 × MIC for S. aureus 7. In addition, the specific mechanisms of this anti-biofilm effect were investigated by evaluating hydrophobicity, auto-aggregation, exopolysaccharide (EPS) production rate, and motility. Significant changes in EPS production rate and motility were observed in both S. aureus and E. coli in the presence of GSE, while changes in hydrophobicity were observed only in E. coli. No relationship was seen between auto-aggregation and biofilm formation. Therefore, our results suggest that GSE might be used as an anti-biofilm agent that is effective against S. aureus and E. coli.
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참고문헌 (30)
참고문헌 신청
World Health Organization (WHO). / Fact sheets
Scallan E / 2011 / Foodborne illness acquired in the United States-major pathogens / Emerg. Infect. Dis 17:7~15
Bazargani MM / 2016 / Antibiofilm activity of essential oils and plant extracts against Staphylococcus aureus and Escherichia coli biofilms / Food Control 61:156~164
Srey S / 2013 / Biofilm formation in food industries : a food safety concern / Food Control 31:572~585
Bridier A / 2015 / Biofilm-associated persistence of foodborne pathogens / Food Microbiol 45:167~178
Scallan E / 2011 / Foodborne illness acquired in the United States-major pathogens / Emerg. Infect. Dis 17:7~15
Bazargani MM / 2016 / Antibiofilm activity of essential oils and plant extracts against Staphylococcus aureus and Escherichia coli biofilms / Food Control 61:156~164
Srey S / 2013 / Biofilm formation in food industries : a food safety concern / Food Control 31:572~585
Bridier A / 2015 / Biofilm-associated persistence of foodborne pathogens / Food Microbiol 45:167~178
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