Journal
ANNALS OF MICROBIOLOGY
Volume 69, Issue 13, Pages 1507-1515Publisher
SPRINGER
DOI: 10.1007/s13213-019-01534-y
Keywords
Fermented soybean meal; Lactobacillus plantarum; Antioxidant activity; Inflammation
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Context Fermented soybean products have been used in various ways, and more research is being conducted on them to reveal their benefit. Objective The objective of this study was to evaluate the antioxidative activity of fermented soybean meal extract by Lactobacillus plantarum in vitro and in vivo tests. Materials and methods A Lactobacillus plantarum strain RM10 was selected through plate and fermentation experiment, which increased the degree of protein hydrolysis (1.015 mu g/mL) and antioxidant activity in soybean meal fermented by selected bacteria (FSBM). In vivo study was done on septic rats as an inflammation/infection model, and then the trial groups were treated with different concentrations of fermented soybean meal extracts (FSBM, 5, 10, and 20%). Results DPPH radical-scavenging and ferrozine ion-chelating activity enhanced (P < 0.05) after fermentation of soybean meal compared to control group. Reduced (P < 0.05) expression of inflammatory genes and enzymes was detected in the lungs of rats treated with fermented soybean meal extract. Discussion and conclusions These results demonstrated that a diet containing fermented soybean meal extract improved extreme inflammatory response in an infectious disease like sepsis by reducing inflammatory factors.
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