Document Detail

Effects of wax treatment on the physiology and cellular structure of harvested pineapple during cold storage.
MedLine Citation:
PMID:  22681417     Owner:  NLM     Status:  MEDLINE    
Pineapple (Ananas comosus (L.) Merr. cv. 'Paris') is sensitive to low temperature and highly susceptible to blackheart during cold storage, which causes serious fruit decay. This work investigated the effect of wax treatment (Sta-Fresh 2952, 60 g/L) on blackheart of pineapple under chilling stress. Wax treatment significantly reduced blackheart symptoms after 14 days of storage and markedly delayed changes in firmness and flesh color during the whole period of storage. The weight loss of wax-treated fruit (2.6%) was less than the control (3.1%) at the 24th day of storage. The treatment decreased the activities of PG and EGase for maintaining cell wall stability during the later period of storage. In the control fruit, the structure of flesh cells was significantly damaged under chilling stress, with looser cell wall, absence of middle lamella, loss of membrane integrity, and many cells near the vascular tissue collapsed. The subcellular elements could be barely observed in the control after storage. These destructive symptoms were significantly alleviated in the wax-treated fruit. The results suggest that wax treatment could reduce blackheart of pineapple under chilling stress via maintenance of cell integrity.
Huigang Hu; Xueping Li; Chen Dong; Weixin Chen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-06-25
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  60     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-03     Completed Date:  2012-10-26     Revised Date:  2013-01-07    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6613-9     Citation Subset:  IM    
South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang 524091, China.
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MeSH Terms
Cold Temperature*
Food Preservation / methods*
Fruit / metabolism*,  ultrastructure*
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Reg. No./Substance:
Erratum In:
J Agric Food Chem. 2012 Nov 14;60(45):11448

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