Extraction, purification, and antioxidant activity of exopolysaccharides produced by Lactobacillus kimchi SR8 from sour meat in vitro and in vivo

Autor: Yulong Zhang, Xueying Chen, Ping Hu, Qianwei Liao, Yong Luo, Juan Li, Dandan Feng, Jun Zhang, Zhaoqing Wu, Haoxiang Xu
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2021
Předmět:
Zdroj: CyTA - Journal of Food, Vol 19, Iss 1, Pp 228-237 (2021)
Druh dokumentu: article
ISSN: 1947-6337
1947-6345
19476337
DOI: 10.1080/19476337.2021.1883117
Popis: The aim of this study was to evaluate the antioxidant activity of exopolysaccharides (EPS) from Lactobacillus kimchi SR8. The EPS exhibited strong scavenging activities for 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radicals. Two EPS fractions (EPS-1 and EPS-3) exhibited higher antioxidant activities than EPS-2. Low-dose CEPS could significantly increase the activities of catalase (CAT) and glutathione peroxidase (GSH-Px) in the serum and the activities of CAT, GSH-Px and superoxide dismutase (SOD) and total antioxidant activity in the liver. Medium- and high-dose CEPS could significantly increase the activities of CAT and GSH-Px and total antioxidant activity in the serum and the activities of CAT, GSH-Px, and SOD and total antioxidant activity in the liver. High-dose CEPS significantly increased the liver index of mice and the activity of SOD in the serum. CEPS could inhibit the formation of malondialdehyde (MDA) in the serum and liver. This suggests that EPS from Lactobacillus kimchi SR8 possesses potential antioxidant activities.
Databáze: Directory of Open Access Journals
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