Abstract
To enhance the activity of Lactiplantibacillus plantarum FS4722 (L. plantarum FS4722) in reducing uric acid, this study optimized the culture medium components and fermentation conditions using response surface methodology. The results indicated that the optimal culture medium comprised glucose at 25.61g/L, yeast extract powder (YEP) at 26.86g/L, and nucleoside addition at 0.48g/L. The optimal fermentation conditions were: a fermentation time of 10h, an initial pH of 6.5, a fermentation temperature of 33 °C, and an inoculum size of 1.0%. Under these conditions, the nucleoside degradation ability of L. plantarum FS4722 increased by 41.9 times, enhancing its potential applications in reducing uric acid and developing anti-gout foods, health supplements, and pharmaceuticals.
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