【作者】 林学亮； 陈丽凤； 熊冬华； 张艳； 王明； 林震山； 黄莹； 王则金；

【Author】 Lin Xue-liang;Chen Li-feng;Xiong Dong-hua;Zhang Yan;Wang Ming;Lin Zhen-shan;Huang Yin;College of food science,Fujian Agriculture and Forestry University;Agricultural preservation technology development Base in Fujian Province;

【机构】 福建农林大学食品科学学院； 福建省农副产品保鲜技术开发基地；

【摘要】 本实验对不同浓度水杨酸处理的黄花梨活性氧代谢进行了研究。将-1℃和5℃下贮藏的黄花梨分别浸泡0g/L、0.1g/L、0.2g/L浓度的水杨酸0.5h,将其活性氧代谢情况进行对比,实验结果表明:水杨酸处理组的APX（p<0.05）、SOD（p<0.05）和POD的活性上升,CAT的活性被抑制。H₂O₂含量积累、O₂-产生速率被显著（p<0.05）抑制。并且经水杨酸处理的黄花梨,-1℃贮藏时0.1g/L处理组、0.2g/L处理组的APX、C盯、POD、SOD活性相对于空白组的变化均大于5℃组,说明-1℃贮藏的黄花梨活性氧代谢酶对水杨酸浓度变化更加敏感。更多还原

【Abstract】 The active oxygen metabolism of Huanghua pear treated with salicylic acid was studied in this experiment.Huanghua pears were soaked in salicylic acid of concentration of 0 g/L,0.1 g/L and 0.2 g/L for 0.5 hour.Then the active oxygen metabolism of the pears at two different storage temperature（-1℃and 5℃）were compared.The results showed that the activity of APX（p<0.05）,SOD（p<0.05） and POD in the salicylic acid treatment group increased,while the accumulation of H₂O₂（p<0.05）,the production rate of O₂-（p<0.05） and the activity of CAT were inhibited.The changes in the activity of enzymes,including APX,CAT,POD and SOD of the pears between the treated groups and the control group was larger under -1℃condition compared to 5℃ condition.Therefore the metabolism of active oxygen of Huanghua pear which stored at -1℃ were more sensitive to the change in salicylic acid content.更多还原