Nutrients · 2025
Antioxidant and Anti-Inflammatory Activities of Latilactobacillus curvatus and L. sakei Isolated from Green Tripe.
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Lee Ga Hun, Choi Sung Hyun, Lee Yong Hyun, Park Jae Kweon
Аннотация
BACKGROUND/OBJECTIVES: Green tripe (GRET) is rich in essential fatty acids, vitamins, calcium, phosphorus, and other nutrients and contains various beneficial microorganisms, including lactobacillus, along with feed components consumed by ruminants.
METHODS: In this study, Latilactobacillus sakei and L. curvatus were isolated from GRET and evaluated for their potential as probiotics, focusing on their anti-inflammatory properties and ability to modulate inflammatory responses.
RESULTS: When heat-killed L. sakei or L. curvatus (108 CFU/mL) and their metabolites (0.5 mg/mL) were applied to RAW 264.7 macrophages stimulated with LPS, nitric oxide (NO) production was reduced by approximately 10-35% and 2-11%, respectively. Furthermore, the expression levels of key anti-inflammatory cytokines, TNF-α and IL-6, were suppressed by more than 5%. These effects were not due to cytotoxicity but instead due to genuine anti-inflammatory activity. In addition, both strains exhibited antioxidant activity, as demonstrated by their performance in ABTS and FRAP assays.
CONCLUSIONS: These findings suggest that L. sakei and L. curvatus have significant antioxidant and anti-inflammatory properties, highlighting their potential as probiotics and prebiotics. Moreover, these newly isolated strains from GRET are expected to serve as valuable functional ingredients for developing health-promoting foods and dietary supplements.
METHODS: In this study, Latilactobacillus sakei and L. curvatus were isolated from GRET and evaluated for their potential as probiotics, focusing on their anti-inflammatory properties and ability to modulate inflammatory responses.
RESULTS: When heat-killed L. sakei or L. curvatus (108 CFU/mL) and their metabolites (0.5 mg/mL) were applied to RAW 264.7 macrophages stimulated with LPS, nitric oxide (NO) production was reduced by approximately 10-35% and 2-11%, respectively. Furthermore, the expression levels of key anti-inflammatory cytokines, TNF-α and IL-6, were suppressed by more than 5%. These effects were not due to cytotoxicity but instead due to genuine anti-inflammatory activity. In addition, both strains exhibited antioxidant activity, as demonstrated by their performance in ABTS and FRAP assays.
CONCLUSIONS: These findings suggest that L. sakei and L. curvatus have significant antioxidant and anti-inflammatory properties, highlighting their potential as probiotics and prebiotics. Moreover, these newly isolated strains from GRET are expected to serve as valuable functional ingredients for developing health-promoting foods and dietary supplements.