槐树内生真菌抗氧化活性的初步研究

为了确定槐树内生真菌的抗氧化活性,利用抗氧化能力(T-AOC)测试盒初步测定了分离自槐树的12个内生真菌菌株的总抗氧化活性,进而采用碘量法比较了总抗氧化活性较高的菌株的抗氧化能力及其动态变化。结果表明,供试的12株槐树内生真菌均有不同程度的抗氧化活性,4个菌株的抗氧化活性较高,7号菌株最高,达12.54U/ml;30号菌株经碘量法测定反应10d后的过氧化值仅为39.13meq/kg,说明其抗氧化活性较高且较稳定。本研究的结果预示着槐树内生真菌在探寻天然抗氧化活性产物中具有重要价值。

Preliminary Study on Antioxid Afivity of Endophytic Fungi Isolated from Sophora japonica L.

To evaluate the antioxidant activity of endophytic fungi isolated from Sophora japonica L., the total antioxidative capability and stability were assayed by T-AOC reagent box. Those strains with higher total antioxidative capability were also studied and compared by iodometry. The results showed that 12 strains of endophytic fungi isolated from Sophora japonica L. have different antioxidant activities. Four strains show higher antioxidantion, where atrain No.7 reaches 12.54U/ml as the best. Strain No.30 shows better antioxidative stability, so the POV (peroxide value) of lard tested in the ten days is only 39.13 meq/kg. It might be concluded that these endophytic fungi from Sophora japonica L. have a potential value as natural antioxidants.