Antimicrobial Effects of Natural Flavonoids and a Novel Flavonoid, 7-O-Butyl Naringenin, on Growth of Meat-borne Staphylococcus aureus Strains

• 발행기관: 한국축산식품학회
• 저자명: Sun Hee Moon Kyoung Ah Lee Keun Kyu Park Kee Tae Kim Yong Sun Park Seung Yeal Nah Aubrey F. Mendonca
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제31권 제3호, 413~419쪽, 전체 7쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2011.06.30

영문 초록

The antimicrobial effects of the natural flavonoids kaempferol, quercetin, apigenin, and naringenin as well as a novel flavonoid 7-O-butyl naringenin against the growth of four meat-born Staphylococcus aureus strains were evaluated. First, the flavonoids were screened for inhibitory effects against the growth of each strain using the paper disc diffusion method. Second, the growth inhibitory effects of flavonoids that showed antimicrobial activity were measured using the microplate method. Third, the bactericidal effects of flavonoids were evaluated in a 0.8% (w/v) NaCl solution. All flavonoids showed bacteriostatic effects at >20 mM. Among the flavonoids studied, quercetin was more effective than the others tested. However, the inhibitory effect of 7-O-butyl naringenin on growth of S. aureus KCCM 32395 was greater than that of quercetin at the same concentration. Additionally, 7-O-butyl naringenin exhibited significant bactericidal effects at >25 μM. When bacterial cells were examined using scanning electron microscopy, it appeared that the S. aureus membranes were damaged or morphologically changed when treated with quercetin and 7-O-butyl naringenin at 200 μM.

키워드

flavonoid 7-O-butyl naringenin Staphylococcus aureus antimicrobial effect