Objective:To study the antioxidant activities of FLJ in vitro.Methods :The FLJ was extracted by method of reflux extraction and purified by macroporous adsorption resin.The scavenging capacities on hydroxyl free radical, superoxide anion radical and alkyl radical as well as inhibition of POV value of the FLJ were detected while the V_c, BHT, quercetin and rutin flavonoids were used as positive control.Results:The FLJ had some scavenging ability on all radical had been studied in this experiment.The scavenging activity on hydroxyl free radical, superoxide anion radical was weaker than V_c, quercetin and rutin flavonoids.When the concentration was 1.04mg/mL the FLJ and V_c had equivalent effects on the alkyl radical.But the FLJ had stronger antioxidant activities on inhibition of POV value than BHT and Vc.The amount of FLJ used was in direct proportion to the antioxidation.Conclusion: The FLJ had remarkable in vitro antioxidant activity.

In order to cultivate qualified graduates adaptive to the need of society,the reform to floriculture practice teaching method and the teaching style was carried on.The teaching method to adapt in'floriculture'the curriculum practices teaching,the enhancement of practice teaching and the methods of strengthening the practice ability were discussed.Thus to strengthen the student's practice ability,cultivate their innovation spirit and responsible manner.

对虎杖黄色素的提取条件进行了系统的研究,确定了最佳提取溶剂及最佳提取工艺.