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Conservación de aceitunas verdes o color cambiante en salmuera

Authors: Garrido Fernández, A.; Brenes Balbuena, Manuel; García García, Pedro; Durán Quintana, M.ª Carmen;

Conservación de aceitunas verdes o color cambiante en salmuera

Abstract

[ES] La conservación de aceitunas en salmuera, sin tratamiento previo con una solución de hidróxido sódico, da lugar a una fermentación de características relativamente diversas. El desarrollo de microorganismos depende de la materia prima (variedades), flora adherida a ésta, y condiciones físico-químicas. La presencia de levaduras se observa en todos los casos, aunque sólo algunas especies se encuentran de forma sistemática. El desarrollo de bacterias lácticas (cocos y lactobacilos) está influenciado por la variedad y la concentración de sal (no crecen por encima del 8%). La presencia inicial de bacterias Gram-negativas así como la contaminación con otros gérmenes capaces de causar alteraciones se controla bien mediante la corrección del pH inicial de la salmuera con acético a valores en torno a 4.2 unidades. Cuando la conservación se hace a niveles elevados de acidez acética, láctica o de ambas, el crecimiento de gérmenes prácticamente se inhibe. La aplicación del sistema aeróbico puede ser útil, en ciertos casos, para evitar el arrugado.

[EN] Preservation of olives in brine, without sodium hidroxide treatment, leads to a fermentative process, which characteristics are diverse. The growth of microorganisms depends on the raw material (cultivars) microflora adhered to the exterior olive surface, and physico-chemical conditions. The presence of yeasts is always observed, although only a few species are systematically found. Lactic acid bacteria (cocci and lactobacilli) depends on the cultivar and the NaCI concentration (a level over 8% is inhibitory for them). The presence of Gram-negative bacteria and other spoiling germs are effectively prevented by the initial correction of brines with acetic acid up to a pH level of aprox. 4.2. Preservation by high concentrations of acetic, lactic or both acids prevents the growth of practically any microorganism. When preservation is carried set by the aerobic system, shrivelling of fruits is avoided in send sensitive cultivars.

10 páginas, 7 tablas.

Peer reviewed

Keywords

Aceituna verde, Aceituna de color cambiante, Green olive, Turning colour olive, Aceituna de mesa, Table olive, Conservación, Fermentation, Fermentación, Preservation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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