The objective of this study was to evaluate the functional properties of Weissella cibaria JW15 (JW15) by investigating its antagonistic and antioxidant activities. Lactobacillus rhamnosus GG (LGG) was used for comparison as a reference strain. JW15 inhibited the growth of pathogenic bacteria (Listeria monocytogenes, Salmonella Typhimurium, S. Enteritidis, and Escherichia coli). Compared to LGG, JW15 showed rapid organic acid production, with the amounts of lactic and acetic acids being lower and higher, respectively. In addition, JW15 significantly inhibited intestinal epithelial adherence in the tested pathogens. JW15 exhibited antioxidant effects by scavenging radicals including DPPH, ABTS, and hydroxyl radicals, and inhibiting lipid peroxidation. JW15 exhibited significant antagonistic and antioxidant activities compared to LGG in the tested assay (p < 0.05). The results suggested that JW15 might possess a potential for amelioration of disorders induced by pathogenic bacteria or oxidative stress.

中文翻译：

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益生菌Weissella cibaria JW15的拮抗和抗氧化作用。

这项研究的目的是通过研究其Weissella cibaria JW15（JW15）的拮抗和抗氧化活性来评估其功能特性。将鼠李糖乳杆菌GG（LGG）用作参考菌株进行比较。JW15抑制病原细菌（单核细胞增生李斯特菌，鼠伤寒沙门氏菌，肠炎沙门氏菌和大肠杆菌）的生长。与LGG相比，JW15显示出快速的有机酸生成，其中乳酸和乙酸的量分别较低和较高。此外，JW15显着抑制了受测病原体的肠上皮粘附。JW15通过清除包括DPPH，ABTS和羟基在内的自由基并抑制脂质过氧化而表现出抗氧化作用。与LGG相比，JW15在测试的测定中显示出显着的拮抗和抗氧化活性（p <0.05）。结果表明，JW15可能具有改善由病原菌或氧化应激引起的疾病的潜力。