Document Detail

Effect of three different preservative systems on the stability of extruded dog food subjected to ambient and high temperature storage.
MedLine Citation:
PMID:  7996259     Owner:  NLM     Status:  MEDLINE    
Three different preservative treatments were applied to extruded dog food. After processing the dog foods were placed in bags and stored for 16 wk at 48.8 degrees C for 12 mo at 22.2 degrees C. The preservative treatments were as follows: 1) ethoxyquin and butylated hydroxyanisole (EX/BHA), 2) mixed tocopherols (TC/TC) and 3) ascorbyl palmitate and mixed tocopherols (ATL/TC). There were no significant differences among treatments for thiobarbituric acid values for either the high or ambient temperature tests, whereas peroxide value (PV) showed significant treatment and storage effects. For products stored at 22.2 degrees C, PV increased linearly from week 4 to week 16 in both the TC/TC and ATL/TC preservative treatments and was significantly higher than the PV for EX/BHA. In the ambient temperature test, the PV was also higher for the TC/TC and the ATL/TC treatments compared to the EX/BHA treatment after 5 and 12 mo of storage. Results of the sensory evaluations were closely associated with PV. In both the high and ambient temperature tests the dogs consumed more of the foods with the lowest PV when given a two-bowl choice. Using PV and sensory tests as criteria, we concluded that the ATL/TC and TC/TC preserved dog foods deteriorated during storage compared to the EX/BHA preserved food in both the high and ambient temperature tests.
K L Gross; R Bollinger; P Thawnghmung; G F Collings
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of nutrition     Volume:  124     ISSN:  0022-3166     ISO Abbreviation:  J. Nutr.     Publication Date:  1994 Dec 
Date Detail:
Created Date:  1995-01-19     Completed Date:  1995-01-19     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2638S-2642S     Citation Subset:  IM    
Mark Morris Associates, Topeka, KS 66601.
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MeSH Terms
Animal Feed / analysis,  standards*
Antimutagenic Agents
Ascorbic Acid / analogs & derivatives
Butylated Hydroxyanisole
Dogs / physiology*
Food Handling
Food Preservation*
Peroxides / analysis
Thiobarbituric Acid Reactive Substances / analysis
Vitamin E
Reg. No./Substance:
0/Antimutagenic Agents; 0/Peroxides; 0/Thiobarbituric Acid Reactive Substances; 137-66-6/6-O-palmitoylascorbic acid; 1406-18-4/Vitamin E; 25013-16-5/Butylated Hydroxyanisole; 50-81-7/Ascorbic Acid; 91-53-2/Ethoxyquin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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