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Título: | Effect of Spanish-style processing steps and inoculation with Lactobacillus pentosus starter culture on the volatile composition of cv. Manzanilla green olives |
Autor: | Castro Gómez-Millán, Antonio de CSIC ORCID ; Sánchez Gómez, Antonio Higinio CSIC ORCID CVN ; Cortés Delgado, Amparo CSIC ORCID ; López-López, Antonio CSIC ORCID ; Montaño, Alfredo CSIC ORCID | Palabras clave: | Table olives Processing Lactobacillus pentosus Volatile composition Manzanilla cultivar |
Fecha de publicación: | 15-ene-2019 | Editor: | Elsevier | Citación: | Food Chemistry 271: 543-549 (2019) | Resumen: | The effects of the main steps of Spanish-style processing (alkaline treatment and fermentation) on the volatile composition of cv. Manzanilla green olives were studied. Both spontaneous and controlled fermentations were considered. In the latter case, a Lactobacillus pentosus strain from green olive fermentation brine was used as starter culture. The volatile profile was determined by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC–MS). Most of the volatile compounds detected in fresh olives decreased or were undetected after alkaline treatment, while several compounds (mostly acetic acid, 2-methylbutanoic acid, and ethanol) were formed as a result of this treatment. Over 50 new volatile components, mostly esters and phenols, appeared as a result of fermentation. The most outstanding finding was a considerable increase in 4-ethyl phenol (almost 100-fold increase) in inoculated olives compared to the uninoculated product. However, a sensory panel did not find significant differences in odor perception. | Descripción: | 30 Páginas; 1 Tabla; 2 Figuras | Versión del editor: | http://dx.doi.org/10.1016/j.foodchem.2018.07.166 | URI: | http://hdl.handle.net/10261/171339 | ISSN: | 0308-8146 |
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