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논문 기본 정보

자료유형
학술저널
저자정보
Kong Haram (Department of Food Science and Biotechnology Kyonggi University Suwon 16227 Republic of Korea) 정도원 (동덕여자대학교) Kim Namwon (Department of Food Science and Biotechnology Kyonggi University Suwon 16227 Republic of Korea) Lee Sugyeong (Department of Food Science and Biotechnology Kyonggi University Suwon 16227 Republic of Korea) Sul Sooyoung (Division of Sports Science Kyonggi University Suwon 16227 Republic of Korea) 이종훈 (경기대학교)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제32권 제4호
발행연도
2022.4
수록면
458 - 463 (6page)
DOI
10.4014/jmb.2111.11040

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We evaluated the antibiotic susceptibilities, hemolytic activities, and technological properties of 36 Staphylococcus xylosus strains and 49 S. pseudoxylosus strains predominantly isolated from fermented soybean foods from Korea. Most of the strains were sensitive to chloramphenicol, erythromycin, gentamycin, kanamycin, lincomycin, oxacillin, tetracycline, and trimethoprim. However, 23 strains exhibited potential phenotypic acquired resistance to erythromycin, lincomycin, and tetracycline. Based on breakpoint values for staphylococci from the Clinical and Laboratory Standards Institute, >30% of the isolates were resistant to ampicillin and penicillin G, but the population distributions in minimum inhibitory concentration tests were clearly different from those expected for acquired resistance. None of the strains exhibited clear α- or β-hemolytic activity. S. xylosus and S. pseudoxylosus exhibited salt tolerance on agar medium containing 20% and 22% (w/v) NaCl, respectively. S. xylosus and S. pseudoxylosus strains possessed protease and lipase activities, which were affected by the NaCl concentration. Protease activity of S. pseudoxylosus was strain-specific, but lipase activity might be a characteristic of both species. This study confirms the potential of both species for use in high-salt soybean fermentation, but the safety and technological properties of strains must be determined to select suitable starter candidates.

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