Exopolysaccharides from <i>Lactiplantibacillus plantarum</i> C7 Exhibited Antibacterial, Antioxidant, Anti-Enzymatic, and Prebiotic Activities

oleh: Taroub Bouzaiene, Mariem Mohamedhen Vall, Manel Ziadi, Ines Ben Rejeb, Islem Yangui, Abdelkarim Aydi, Imene Ouzari, Hamdi Moktar

Format: Article
Diterbitkan: MDPI AG 2024-06-01

Deskripsi

Previously, the exopolysaccharides produced by <i>Lactiplantibacillus plantarum</i> C7 isolated from the broiler intestine have been shown to possess probiotic potential. In this study, we highlighted the capacity of this strain to produce exopolysaccharide (EPS) endowed with several biological activities. The 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) free radical scavenging activities of EPS were found to be 30.4% and 68.165%, respectively, at 100 mg/mL. The ferrous reducing potential of EPS was measured to be 25.26%. Furthermore, EPS exhibited antibacterial effects against both Gram-negative and Gram-positive pathogens, including <i>Escherichia coli</i> ATCC 10536 and <i>Bacillus cereus</i> ATCC 11778, with inhibition zones of 22.5 ± 0.70 mm and 20 ± 1.41, respectively. On the other hand, the exopolysaccharide also exhibited excellent inhibitory activity against butyrylcholinesterase (BChE), achieving 70.99% inhibition at a concentration of 10 mg/mL. FTIR spectra were used to characterize functional groups in EPS. Our findings proved that EPS from <i>Lactiplantibacillus plantarum</i> C7 could be explored for various applications, particularly in the health and functional food sectors.