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Isolation and identification of polysaccharides from Pythium arrhenomanes and application to strawberry fruit (Fragaria ananassa Duch.) preservation.

Food Chem. 2020;

Yuan Z1, Shi Y1, Cai F1, Zhao J1, Xiong Q1, Wang Y1, Wang X2, Zheng Y3.

Products/Services Used	Details	Operation
Biochemicals	… 2.1. Materials. 2.1.1. Pythium strain. P. arrhenomanes, preserved by our laboratory, was identified<br> by <b>GenScript</b> Biotechnology Company and maintained on a potato-dextrose-agar (PDA) plate<br> with serial subcultivation each month (Al-Hussini et al., 2018). 2.2. Methods …	Get A Quote

摘要

In this study, we extracted exopolysaccharides from Pythium arrhenomanes and purified them to obtain three polysaccharides (PEPS-1, PEPS-2, PEPS-3). The composition of these polysaccharides was determined. PEPS-2 and PEPS-3 showed outstanding antioxidant activities. PEPS-2 was chosen as a polysaccharide-based coating for strawberry fruit, and its effects on postharvest preservation of the fruit were determined. Strawberries coated with PEPS-2 exhibited significant delay in decay index and lower malondialdehyde, higher soluble solids content, anthocyanin content and vitamin C content, and greater DPPH radical-scavenging activity than uncoated control fruit. The developed method could be beneficial for improving ... More