FOOD SCIENCE ›› 0, Vol. ›› Issue (): 0-0.

• Food Engineering •     Next Articles

The Inhibition Effect of Lignosus Rhinocerotis Polysaccharides-Selenium nanoparticles on Non-enzymatic Glycosylation Under Ultrasound

, ,   

  • Received:2019-07-25 Revised:2020-05-13 Online:2020-08-15 Published:2020-08-19

Abstract: Stable Lignosus rhinocerotis polysaccharides-selenium nanoparticles (LRP-SeNPs) were synthesized under ultrasound, and the effects of LRP-SeNPs on the characteristic products (fructosamine, dicarbonyl compounds and fluorescence end products) of non-enzymatic glycosylation reaction at three stages were studied by ultraviolet spectrum, fluorescence spectrum and SDS-PAGE. The results showed that ultrasound LRP-SeNPs (U-LRP-SeNPs) could effectively inhibit non-enzymatic glycosylation reaction with a certain dose dependent effect. U-LRP-SeNPs (Se/LRP=1/10 and 1/15) had good non-enzymatic glycosylation inhibition activity and the inhibition rate remained at 30% and 20%, respectively. The inhibition effect of U-LRP-SeNPs was further verified by SDS-PAGE. Ultrasound could effectively improve the stability of U-LRP-SeNPs, reduce the size of SeNPs, and increase the specific surface area. It provides more sites for binding with free radicals, so as to shield or terminate free radicals, effectively inhibits the oxidation reaction caused by free radicals, and prevents the non-enzymatic glycation reaction from the oxidation stage.

Key words: Lignosus rhinocerotis polysaccharides-selenium nanoparticles (LRP-SeNPs), ultrasound, non-enzymatic glycosylation, inhibition effect

CLC Number: