Abstract:

Objective: To study Pinus yunnanensis Franch pine needle polysaccharide's effect of scavenging free radical and antilipid
perxidation. Methods: DPPH was used to study the ability of scavenging free radicals of Pinus yunnanensis Franch pine needle
polysaccharide. TBARS was used to study the inhibition effect of Pinus yunnanensis Franch pine needle polysaccharide on MDA in the
mice liver tissue homogenate. The effect was compared with the antioxidation of vitamin C, and its anti lipid peroxidation ability was
evaluated as well. Results: Pinus yunnanensis Franch pine needle polysaccharide extract had certain scavenging effect on DPPH and
could inhibit MDA in the mice liver tissue lipid oxidation products of spontaneous generation. Conclusion: Pinus yunnanensis Franch
pine needle polysaccharide extract has scavenging effects on DPPH free radicals, and inhibition effect on rat liver homogenate
spontaneous lipid peroxidation, showing that Pinus yunnanensis Franch pine needles polysaccharide has good anti-oxidation action.

Key words: Pinus yunnanensis Franch pine needles polysaccharide, DPPH free radical, lipid perxidation, antioxidant