Seoul National University · Environmental Science
Professor Sib Sankar Giri's research lab specializes in aquatic animal health, focusing on the development and application of probiotics, plant-based feed additives, and bioactive compounds to enhance growth, immunity, and stress resilience in freshwater fish. The lab investigates microbial and phytochemical interventions—such as *Lactobacillus* spp., banana peel flour, and curcumin—to mitigate environmental toxicants like lead and improve sustainable aquaculture practices. A key focus is on understanding the immunomodulatory and antioxidant mechanisms underlying these protective effects through in vivo and in vitro studies.
Figures are computed from collected data and may differ slightly.
Labeo rohita fingerlings were fed for 60 days with basal diet (BD) or one of the following experimental diets: DI (BD + B. subtilis); DII (BD + B. subtilis + L. plantarum); DIII (BD + B. subtilis + P. aeruginosa) and DIV (BD + B. subtilis + P. aeruginosa + L. plantarum). Various growth and immune parameters were examined at 30 and 60 days postfeeding. The fish group fed DIV diet had better improvement (P < 0.05) in weight gain, specific growth rate (SGR) and feed conversion ratio (FCR) than the
Harmful effects of heavy metals are myriad. Lead (Pb) from soil and atmosphere contaminates water bodies and affects the aquatic animals. Our previous study confirmed the <i>in vitro</i> probiotic potential of <i>Lactobacillus reuteri</i> against Pb toxicity, but further investigation is necessary for gaining insights into the related protection mode. Therefore, in this study, we investigated the protective effects of the potential probiotic <i>L. reuteri</i> P16 against waterborne Pb exposure-i
This study aimed to isolate potential probiotic lactic acid bacteria from a traditional rice-based fermented beverage "bhaati jaanr" and to evaluate their role during preparation of the beverage. Among various isolates, <i>Lactobacillus plantarum</i> strain L7 exhibited satisfactory <i>in vitro</i> probiotic characteristics such as acid resistance and bile tolerance, cell surface hydrophobicity, auto-aggregation, antibiotic susceptibility, and antimicrobial activities. Therefore, performance of
To explore the feasibility of Musa acuminata (banana) peels as a feed additive, effects of banana peel flour (BPF) on the growth and immune functions of Labeo rohita were evaluated. Diets containing five different concentrations of BPF (0% [basal diet], 1% [B1], 3% [B3], 5% [B5], and 7% [B7]) were fed to the fish (average weight: 15.3 g) for 60 days. The final weight gain and specific growth rate were higher (P < 0.05) in the B5 group. The most significant improvements in immune parameters such
Multifarious applications of <i>Bacillus licheniformis</i> VS16-derived biosurfactant were explored. <i>Labeo rohita</i> fingerlings were injected intraperitoneally with 0.1 mL of phosphate-buffered saline (PBS) containing purified biosurfactant at 0 (control), 55 (S55), 110 (S110), 220 (S220), or 330 (S330) μg mL<sup>-1</sup> concentrations. Various immunological parameters and the expression of immune-related genes were measured at 7, 14, and 21 days post-administration (dpa). At 21 dpa, fish
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