次氯酸钠水浴处理对板栗呼吸和几种酶活性的影响  

Effects of Sodium Hypochlorite Solution Water-Curing Treatment on Respiration and Amylase Activity of Chestnut

作　　者：杨小胡[1] 梁丽松[1] 王贵禧[1] 石雪晖[2] 

机构地区：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室 [2]湖南农业大学园艺园林学院,长沙410128

出　　处：《林业科学》2007年第2期37-42,共6页Scientia Silvae Sinicae

基　　金：国家林业局"948"项目(2004-4-54)

摘　　要：以‘燕昌’板栗为试材,研究采后不同浓度NaClO水浴处理对板栗贮藏生理代谢的影响。结果表明:NaClO水浴处理使板栗呼吸强度和淀粉酶活性降低,乙醇脱氢酶(ADH)活性升高;NaClO水浴处理使板栗内部PPO活性降低,对外部PPO活性的影响与NaClO浓度相关,1000mg.L-1NaClO处理使板栗外部PPO活性一直高于对照,而100mg.L-1NaClO和500mg.L-1NaClO处理使外部PPO活性降低;NaClO水浴处理使板栗内部POD活性降低,对外部POD活性的影响与NaClO浓度相关,1000mg.L-1NaClO处理使板栗外部POD活性增加,其他处理在贮藏前期降低了外部POD活性,但在后期使外部POD活性升高;100mg.L-1NaClO和500mg.L-1NaClO处理使板栗SOD活性升高,而1000mg.L-1NaClO处理则使SOD活性降低;NaClO处理板栗的CAT活性变化趋势与对照相似,但提高了CAT活性。In this paper, the effects of different concentrations （ 100, 500, 1 000 mg·L^-1 ） of sodium hypochlorite solution water-curing treatment on physiological changes of chestnut （ Castanea moUissima cv. Yanchang） were studied during postharvest MA storage. The results were as follows： 1 ） NaClO water-curing treatment could decrease respiratory intensity and amylase activity, but increase ADH activity of chestnut; 2） NaClO water-curing treatment could inhibit intra-PPO activity, extra-PPO activity was related with concentrations of NaClO solution. The extra-PPO activity of chestnut treated with 1000 mg·L^-1 NaClO solution was higher than that of CK at all times. However, 100 mg·L^-1 or 500 mg·L^-1 NaClO solution water-curing treatment made extra-PPO activity lower than CK. 3） NaClO water-curing treatment could restrain intra-POD activity, extra-POD activity was related with concentrations of NaClO solution. Extra-POD activity of chestnut treated with 1 000 mg·L^-1 NaClO solution was higher than that of CK. However, extra-POD activity was lower in the early storage and higher in the later treated with 100 mg·L^-1 or 500 mg·L^-1 NaClO solution. 4） SOD activities were higher than CK by 100 mg·L^-1 NaClO or 500 mg·L^-1 NaClO solution treatment, but SOD activity was lower than CK by 1 000 mg·L^-1 NaClO solution treatment. 5 ） There were no differences between NaClO water-curing treatments and CK on the changing trends of CAT activities, but CAT activity was improved by NaClO water-curing treatment.

关 键 词：板栗 次氯酸钠 水浴处理 呼吸强度 酶活性 

分 类 号：S718.43[农业科学—林学]