桔青霉
抗氧化剂
化学
体外
紫色红曲霉
真菌
食品科学
植物
丝状真菌
细胞壁
糖
生物
生物化学
微生物学
红曲霉
基因
发酵
作者
Tao Xin,Xianxiang Chen,Ruihong Dong,Gang Wang,Xiaoxin Xu,Qiang Yu,Yi Chen,Xufeng Wang,Jianhua Xie
标识
DOI:10.1016/j.ijbiomac.2024.132110
摘要
In recent years, the considerable potential of endophytic bacteria and fungi as prolific producers of exopolysaccharides (EPSs) have attracted interest. In this study, 56 endophytes were isolated from Cyclocarya paliurus, and the secondary metabolites of EPSs were extracted from Monascus purpureus, Penicillium citrinum and Aspergillus versicolor, screened, and named MPE, PCE and AVE, respectively. In this work, the physicochemical properties and antioxidant activities of three EPSs, their cell proliferation activity on IEC-6 and RAW264.7 were investigated. The three EPSs were mainly composed of neutral sugar and differ in microstructure. However, MPE had a loose structure, and PCE exhibited a dense and sheet-like structure. In addition, the three EPSs performed ordinary antioxidant activity in vitro but showed excellent cell proliferation activity on IEC-6 and RAW264.7. The cell proliferation activity of PCE was 1.4-fold that of the controls at a concentration of 800 μg/mL on IEC-6, and MPE exhibited 1.3-fold increase on RAW264.7. This study provided scientific evidence and insights into the application of endophytes as a novel plant resource possessing huge application potential.
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