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Extract from Oenothera biennis L. stalks efficiently inhibits Staphylococcus aureus activity by affecting cell permeability and respiratory metabolism

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Abstract Current studies on Oenothera biennis L. have focused on seeds rather than on stalks. Thus, information on the bioactive effects of O. biennis stalks is lacking. Therefore, this study… Click to show full abstract

Abstract Current studies on Oenothera biennis L. have focused on seeds rather than on stalks. Thus, information on the bioactive effects of O. biennis stalks is lacking. Therefore, this study investigated the antibacterial effect of O. biennis stalk extract (OBSE) and its underlying mechanisms against Staphylococcus aureus in terms of cell permeability and respiration metabolism to effectively utilize O. biennis stalks. Results showed that OBSE inhibited S. aureus growth. The diameter of the inhibitory zone reached 13.57 mm, and the minimum inhibitory concentration was 1 mg/mL. The activity of alkaline phosphatase and the levels of electronic conductivity, nucleic acid, and protein in S. aureus suspension were remarkably decreased (p

Keywords: oenothera biennis; biennis; biennis stalks; staphylococcus aureus; cell permeability

Journal Title: Industrial Crops and Products
Year Published: 2020

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