Antioxidant,hypoglycemic and lipid-lowering activities of Polygonatum sibiricum fermented by different strains
The traditional Polygonatum sibiricum(P.sibiricum)processing method,alcohol steaming method or alcohol stewing method,is time-consuming and energy-consuming.In order to develop low energy consumption,short time-consuming and mild conditions of P.sibiricum processing technology,the optimum P.sibiricum fermentation strain was screened,and the fermented P.sibiricum activities of anti-oxidation,hpyerglycemic and lipid-lowering were systemly researched.Lactiplantibacillus plantarum Picp-2,an optimum strain,was eventually screened.Using L.plantarum Picp-2 on P.sibiricum by liquid fermentation,the P.sibiricum polysaccharide obtained DPPH·,·OH,·O2-clearance rate and total reducing power increased by 50.38%,13.10%,14.48%and 31.47%,respectively.At the same time,the inhibition rate of α-glucosidase in Picp-2 fermentation group increased by 83.24%.The results show that L.plantarum Picp-2 significantly increases the antioxidant and hypoglycemic activities of P.sibiricum by liquid fermentation.This study provides a theoretical basis and guidance for the development and research of P.sibiricum processing technology.
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