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Study of the anti-lactic acid bacteria compounds in table olives

AuthorsMedina Pradas, Eduardo ; García Borrego, Aránzazu ; Romero Barranco, Concepción ; Castro Gómez-Millán, Antonio de ; Brenes Balbuena, Manuel
Table olives
Issue DateJul-2009
PublisherInstitute of Food Science and Technology (U.K.)
CitationInternational Journal of Food Science and Technology 44(7): 1286-1291 (2009)
AbstractThe analysis and formation of anti-lactic acid bacteria compounds in olive brines was performed for the main worldwide olive varieties intended for table olives. The results demonstrated that the growth of lactic acid bacteria in the brines of olives non-treated with NaOH is, in some way, variety dependant. Likewise, the most active antimicrobial compound, the dialdehydic form of decarboxymethyl elenolic acid linked to hydroxytyrosol, was not detected in fresh fruits but it was formed during brining from the hydrolysis of oleuropein and this reaction was enzymatically catalysed. Thus, the inactivation of the enzyme by heating the olives produced (i) an accumulation of oleuropein in olives and brines, (ii) the inhibition of the formation of antimicrobials and (iii) the growth of Lactobacillus pentosus in olive brines. These results provide tools for a full understanding of the growth or inhibition of lactic acid bacteria during fermentation of table olives.
Publisher version (URL)http://dx.doi.org/10.1111/j.1365-2621.2009.01950.x
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