食品科学
粪肠球菌
化学
益生菌
阿布茨
DPPH
流变学
剪切减薄
多糖
抗氧化剂
细菌
生物化学
材料科学
生物
大肠杆菌
遗传学
复合材料
基因
作者
Abdelmoneim H. Ali,Gafar Babatunde Bamigbade,Mohammad Tarique,Gennaro Esposito,Reyad Shaker Obaid,Basim Abu-Jdayil,Mutamed Ayyash
标识
DOI:10.1016/j.ijbiomac.2023.124425
摘要
Exopolysaccharides (EPS) have attracted a great interest due to their potential health-promoting properties and industrial applications. This study aimed to investigate the physicochemical, rheological, and biological properties of an EPS produced by a potential probiotic strain Enterococcus faecalis 84B. The results show that the extracted EPS, designated EPS-84B, had an average molecular weight of 604.8 kDa, particles size diameter of 322.0 nm, and mainly composed of arabinose and glucose with a molar ratio of 1:2. Furthermore, EPS-84B exhibited a shear-thinning behavior and had a high melting point. The rheological properties of EPS-84B were strongly influenced by the type of salt than by the pH value. EPS-84B displayed ideal viscoelastic properties, with both viscous and storage moduli increasing with frequency. The antioxidant activity of EPS-84B at a concentration of 5 mg/mL was 81.1 % against DPPH and 35.2 % against ABTS. At 5 mg/mL, the antitumor activity of EPS-84B against Caco-2 and MCF-7 cell lines was 74.6 and 38.6 %, respectively. In addition, the antidiabetic activity of EPS-84B towards α-amylase and α-glucosidase was 89.6 and 90.0 %, respectively at 100 μg/mL. The inhibition of foodborne pathogens by EPS-84B was up to 32.6 %. Overall, EPS-84B has promising properties that could be utilized in food and pharmaceutical industries.
科研通智能强力驱动
Strongly Powered by AbleSci AI