Using PCR-SRAP system, we selected 9 pairs of primers for the wild and cultivated strains respectively, and analyzed their genetic diversity through clustering analysis.
DF functional properties might be degraded or modified.Ībstract: A genetic diversity analysis was conducted, of 14 wild Auricularia auricula strains and 6 cultivated strains from DaXing'anling region by SRAP and ITS markers. The results showed that, in order to preserve the DF quality, the extraction solvent should be important. The cation exchange capacities (CEC) was significantly lower from alkali liquor treatments, and CEC was only 0.02 meq/g fibres that decreased by 95.4%. The water-holding capacity (WHC), water retention capacity (WRC) and oil-binding capacity (OBC) of fibres from alkali liquor treatments were decreased by 51.4, 48.1, and-3.8%, respectively. Dietary fibre (DF) from alkali liquor treatments had significantly higher amounts of glucosamine than samples extracted by water. Crude protein ranged from 9.98% to 4.40%, and fat ranged from 2.51% to 3.71%, and carbohydrate ranged from 88.21% to91.66%, the content being affected by the solvent, in some cases. Among the auricularia auricula phytochemicals, crude protein, glucosamine, fat and carbohydrate were quantified. Factor such as the solvent used was studied, and the significance of such changes was largely dependent on the alkali liquor.
Abstract: Extraction method by which auricularia auricula was treated affects the phytochemical composition and properties of the fibre-rich powders.
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