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《Scientia Silvae Sinicae》 2007-02
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Effects of Sodium Hypochlorite Solution Water-Curing Treatment on Respiration and Amylase Activity of Chestnut

Yang Xiaohu~ 1,2 Liang Lisong~1 Wang Guixi~ 1 Shi Xuehui~3(1. The Research Institute of Forestry, The Chinese Academy of Forestry Key Laboratory of Forest Silviculture of State Forestry Administration Beijing 100091;2. Hunan Forestry Academy Changsha 410004; 3. Horticulture and Landscape College of Hunan Agriculture University Changsha 410128)  
In this paper, the effects of different concentrations (100, 500, 1 000 mg\5L~ -1 ) of sodium hypochlorite solution water_curing treatment on physiological changes of chestnut (Castanea mollissima 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 1 000 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.
【Fund】: 国家林业局“948”项目(2004-4-54)
【CateGory Index】: S664.2
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