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Research on Comparison of Active Oxygen Metabolism of  Postharvest Seedless Grape Varieties(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年17期
Page:
20-22
Research Field:
Publishing date:

Info

Title:
Research on Comparison of Active Oxygen Metabolism of  Postharvest Seedless Grape Varieties
Author(s):
ZHAO Qiang1; 2; ZHANG Ping2; ZHU Zhi-qiang2; NONG Shao-zhuang1
1.Department of Food Science,Dalian Polytechnic University,Dalian,Liaoning 116034;
2.National Engineering and Technology Research Center for Preservation of Agricultural Products (Tianjin),Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products,Tianjin 300384
Keywords:
seedless grape; varieties; postharvest; active oxygen metabolism
PACS:
S 663.1
DOI:
-
Abstract:
‘Thompson seedless’,‘Flame seedless’and‘Crimson seedless’grape were used as materials,the effect of the preservatives treatment combined with controlled low temperature (-1～0℃) storage on active oxygen metabolism were studied,to provide a theoretical basis for screening the resistance varieties.The results showed that the super oxygen anion free radical (·O2-)and hydrogen peroxide (H2O2) contents of ‘Crimson seedless’ increased significantly,and the SOD,POD and CAT all kept high activity,so it could delay the senescence process of the fruit and showed good characteristics of storage.While in storage period of ‘Thompson seedless’,the CAT activity decreased significantly,H2O2 accumulated abundantly,and accelerated aging.The SOD activity of ‘Flame seedless’ was low,content of ·O2- increased significantly,so it was not conductive to be kept in long-term storage.

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Last Update: 2014-08-08