Document Detail


Microbial evolution during storage of seasoned olives prepared with organic acids with potassium sorbate, sodium benzoate, and ozone used as preservatives.
MedLine Citation:
PMID:  16786857     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of potassium sorbate, sodium benzoate, and ozone in combination with citric, lactic, and acetic acids on the microbial population of seasoned table olives of the olive 'Aloreña' cultivar was studied in both fresh (FF) and stored fruits (SF). The inactivation/growth curves were modeled and the biological parameters estimated, with yeast used as the target microorganism. Regardless of the acid added, potassium sorbate showed a general inactivation effect on yeasts in the products prepared from both FF and SE Sodium benzoate had a rapid inactivation effect with FF, but with SF, it was effective only in the presence of acetic acid. A strain of Issatchenkia occidentalis was found that was resistant to the combination of this preservative with citric or lactic acids. In FF, ozone showed an initial marked inhibition against yeasts, but later, yeasts were again able to grow. In SF, ozone was a strong inactivating agent when it replaced any of the traditional preservatives. Lactic acid bacteria were always absent in products prepared from FF, and apparently were not affected by the different preservative agents in those prepared from SF. The behavior of yeasts and lactic acid bacteria populations in commercial products were similar to those found in experimental treatments.
Authors:
F N Arroyo López; M C Durán Quintana; A Garrido Fernández
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of food protection     Volume:  69     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-21     Completed Date:  2006-07-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1354-64     Citation Subset:  IM    
Affiliation:
Department of Food Biotechnology, Instituto de la Grasa, Seville, Spain. fnarroyo@cica.es
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MeSH Terms
Descriptor/Qualifier:
Acids / pharmacology
Drug Combinations
Drug Synergism
Food Microbiology
Food Preservation / methods*
Food Preservatives / pharmacology*
Hydrogen-Ion Concentration
Lactobacillus / drug effects*,  growth & development
Mathematics
Olea / microbiology*
Ozone / pharmacology
Sodium Benzoate / pharmacology
Sorbic Acid / pharmacology
Time Factors
Yeasts / drug effects*,  growth & development
Chemical
Reg. No./Substance:
0/Acids; 0/Drug Combinations; 0/Food Preservatives; 10028-15-6/Ozone; 110-44-1/Sorbic Acid; 532-32-1/Sodium Benzoate

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


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