丛永亮

曹雪丹

段振军

池明

鲁周民

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29   32008 6   58Journal of RefrigerationVol.29,No.3June. 20080253 4339 2008 03 0058 04                     712100      CAT POD SOD5%  CAT POD SOD10% 15% , POD SOD   S664.2; TS255.36                                                      AEffect of Dehydration Degree on Physiological Indicators of Chestnut During StorageDuan Zhenjun   Lu Zhoumin   Cong Yongliang   Cao Xuedan   Chi MingCollege of Forestry, Northwest A&F University, Yangling, Shanxi ,712100, ChinaAbstract  The in uences of dehydration degree on the decay rate, moisture content, conductivity, respiration rate, Catalase CAT , Peroxidase POD  , superoxide dismutase SOD  and other physiological indicators of Zhen'an red chestnuts during storage were investigated. The results show that the decay rate, respiration rate and conductivity of the chestnuts with the 5% dehydration rate during storage were significantly lower than those  controlled while CAT and POD activity remained at higher levels and SOD activity decreased slowly. The decay rate, respiration rate and conductivity of the chestnuts with the 10% and 15% dehydration rates during storage were signi cantly higher than those controlled while CAT, POD and SOD were signi cantly lower, at a low level. Keywords  Horticulture; Preserving technology; Experiment; Chestnut; Water loss; Physiological indicatorsCastanea mollisima Blume , [1]11% 200 t, 50%, CO2[2 5] [6],,CAT POD SOD1  1.1  5 1 1d,1.2  20 ~24 66%~71%2h 5% 22h,1 10% 54h, 2 15% 94h, 3CK2007 9 55929   32008 6Vol.29,No.3June. 200810kg 3 1 11.3  1 100, =/100 100%2 [7]3 DDS 114 GXH 30515 CAT POD SOD [7]0.3g 0.05mol/LpH=7.8 1/15mol/LNa2HPO4  KH2PO4 9/1 10ml4000r/min 25min1 C A T 3 m L 0 . 3 % H2O21mL H2O1.9mL 0.1mL240nm OD OD0.01 12 P O D 3 m L 0 . 3 % H 2O 21mL 0.2% 0.95mL 0.05mol /LpH=7.0 1mL 0.05mL470nm ODOD 0.01 13 SOD 1CK14000lx 30 25 ~35560nm6 D P SDuncan1  SODTab.1  SOD activity and the control samples2  2.1 11CK 2% 3P<0.01 2 3 30dCK P<0.05 60dCK P<0.011  Fig.1 Changes of rotten rate of Chestnut during storage2  Fig.2 Changes of moisture content of Chestnut during storage2.2  2 2 360d 90d CK P<0.011 CK120d CK P<0.0529   32008 6   60Journal of RefrigerationVol.29,No.3June. 20082.3  3,, [8] 1CK 30d3 CK P<0.0560d 2 3CK P<0.012.4  41 60dCK P<0.01 23CK P<0.01  2.5  CAT5 CAT60dCAT [2]30d CATCK P<0.05 60d 3 CATCK 60d 3 CATCK P<0.01 3CATCAT  2.6  POD6 POD1 PODCK P<0.01 2 3 PODCK P<0.01  2.7  SOD76129   32008 6Vol.29,No.3June. 2008SOD 160d 120d SOD CK P<0.0130d 90d CK 3SOD CK P<0.013  [9]CAT POD SOD5%CAT POD SOD10% 15%5%20 240 1 302 1 90%21007ZR017This work was supported by the Project of Science & Research of Northwest A & F University 07ZR017[1] KUMMER C. A new chestnut[J]. The Atlantic Monthly, 2003,291 5 :119 122 [2] , , .[J]. ,2003,11,24 3 :135 138. Jiang Nonghui,Chen Jinyin,Zhong Yun.Heat Treatment Study on Storage Effect and Postharrest Physiology of Chestnuts[J]. Food Science, 2003,11,24 3 :135 138.[3] , , . CO2[J]. ,2004,11,40 6 :91 96. Liang Lisong,Wang Guixi,Sun Xiaozhen.Effect of Postharvest High CO2 Shock Treatment on the Storage Quality and Performance of Chinese Chestnut Castanea mol l iss ima Blume [J] .  Scient ia  Si lvae  Sinicae , 2004,11,40 6 :91 96.[4] , . C O 2 N 2[ J ] .,2006,19 6 :734 739.  Liang Lisong,Wang Guixi.Effect of High CO2 and N2 Shock Treatment on the Sprouting and Hormone Content of Chinese Chestnut Castanea mollissima Blume  during Shelflife[J]. Forest Research, 2006,19 6 :734 739.[5] , , , .[ J ] ., 2 0 0 7 , 2 , 4 3 2 : 3 7 4 2 .  Y a n g  X i a o h u , L i a n g Lisong,Wang Guixi, et al.Effects of Sodium Hypochlorite Solution Water Curing Treatment on Respiration and Amylase Activity of Chestnut[J]. Scientia Silvae Sinicae, 2007,2,43 2 :37 42.[6] , , , .[ J ] .,2006,33 2 :233 238. Zong Mei,Cai Liqiong, Lv Sufang, et al. Effect of Different Desiccation Methods on Castanea mollissima Embryo Axis Desiccation Sensitivity and Physiological Metabolism[J]. Acta Horticulturae Sinica, 2006,33 2 :233 238.[7] . [M]. : , 2000,1.[8] , , .[J]. ,2007,46, 2 :283 287. Tang Zhenglin,Wang Qingzhang, Wu Moucheng. Comparative Studies of the Physiological Indexes in Chestnut between Sand Storage and Low Temperature Storage[J]. Hubei Agricultural Sciences, 2007,46, 2 :283 287. [9] , , . [M]. :,117 126.[10] , .[C].,2004.7  SODFig.7 Changes of SOD activity of Chestnut during storage

Effect of Dehydration Degree on Physiological Indicators of Chestnut During Storage

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Effect of Dehydration Degree on Physiological Indicators of Chestnut During Storage

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