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Foods

Title:		Multi-Statistical Approach for the Study of Volatile Compounds of Industrial Spoiled Manzanilla Spanish-Style Table Olive Fermentations
Author(s):		Garrido-Fernandez A; Montano A; Cortes-Delgado A; Rodriguez-Gomez F; Arroyo-Lopez FN;
Address:		"Food Biotechnology Department, Instituto de la Grasa (CSIC), University Pablo de Olavide, Building 46, Crta, Utrera km 1, 41013 Seville, Spain"
Journal Title:		Foods
Year:		2021
Volume:		20210524
Issue:		6
Page Number:		-
DOI:		10.3390/foods10061182
ISSN/ISBN:		2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking)
Abstract:		"Table olives can suffer different types of spoilage during fermentation. In this work, a multi-statistical approach (standard and compositional data analysis) was used for the study of the volatile organic compounds (VOCs) associated with altered (butyric, sulfidic, and putrid) and non-altered (normal) Manzanilla Spanish-style table olive fermentations. Samples were collected from two industrial fermentation yards in Seville (Spain) in the 2019/2020 season. The VOC profiles of altered (n = 4) and non-altered (n = 6) samples were obtained by headspace solid-phase microextraction combined with gas chromatography-mass spectrometry (HS-SPME-GC-MS). Ninety-one VOCs were identified and grouped into alcohols (30), esters (21), carbonyl compounds (12), acids (10), terpenes (6), phenols (6), sulfur compounds (2), and others (4). The association of the VOCs with spoilage samples depended on the standard or compositional statistical methodology used. However, butyric spoilage was strongly linked by several techniques to methyl butanoate, ethyl butanoate, and butanoic acid; sulfidic spoilage with 2-propyl-1-pentanol, dimethyl sulfide, methanol, 2-methylbutanal, 2-methyl-2-butenal, ethanol, 2-methyl-3-buten-2-ol, and isopentanol, while putrid was mainly related to D-limonene and 2-pentanol. Our data contribute to a better characterisation of non-zapatera spoiled table olive fermentations and show the convenience of using diverse statistical techniques for a most robust selection of spoilage VOC markers"
Keywords:		butyric compositional data analysis green Spanish-style olives putrid spoilage statistical analysis sulfidic volatile compound;
Notes:		"PubMed-not-MEDLINEGarrido-Fernandez, Antonio Montano, Alfredo Cortes-Delgado, Amparo Rodriguez-Gomez, Francisco Arroyo-Lopez, Francisco Noe eng RTI2018-100883-B-I00/Spanish Goverment/ Switzerland 2021/06/03 Foods. 2021 May 24; 10(6):1182. doi: 10.3390/foods10061182"