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Foods

Title:		Integrated Strategy for Informative Profiling and Accurate Quantification of Key-Volatiles in Dried Fruits and Nuts: An Industrial Quality Control Perspective
Author(s):		Caratti A; Squara S; Stilo F; Battaglino S; Liberto E; Cincera I; Genova G; Spigolon N; Bicchi C; Cordero C;
Address:		"Dipartimento di Scienza e Tecnologia del Farmaco, Universita degli Studi di Torino, 10125 Torino, Italy. Soremartec Italia SRL, 12051 Alba CN, Italy"
Journal Title:		Foods
Year:		2022
Volume:		20221006
Issue:		19
Page Number:		-
DOI:		10.3390/foods11193111
ISSN/ISBN:		2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking)
Abstract:		"Edible nuts and dried fruits, usually traded together in the global market, are one of the cornerstones of the Mediterranean diet representing a source of essential nutrients and bioactives. The food industry has an interest in the selection of high-quality materials for new product development while also matching consumers' expectations in terms of sensory quality. In this study, walnuts (Juglans regia), almonds (Prunus dulcis), and dried pineapples (Ananas comosus) are selected as food models to develop an integrated analytical strategy for the informative volatile organic compounds (VOCs) quali- and quantitative profiling. The study deals with VOCs monitoring over time (12 months) and in the function of storage conditions (temperature and atmosphere).VOCs are targeted within those: (i) with a role in the product's aroma blueprint (i.e., key-aromas and potent odorants); (ii) responsible for sensory degradation (i.e., rancidity); and/or (iii) formed by lipid autoxidation process. By accurate quantitative determination of volatile lipid oxidation markers (i.e., hexanal, heptanal, octanal, nonanal, decanal, (E)-2-heptenal, (E)-2-octenal, (E)-2-nonenal) product quality benchmarking is achieved. The combination of detailed VOCs profiling by headspace solid phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS) and accurate quantification of rancidity markers by multiple headspace-SPME (MHS-SPME) answers many different questions about shelf-life (i.e., aroma, storage stability, impact of temperature and storage atmosphere, rancidity level), while providing reliable and robust data for long-range studies and quality controls. The quantification associated with HS-SPME profiling is demonstrated and critically commented on to help the industrial research in a better understanding of the most suitable analytical strategies for supporting primary materials selection and new product development"
Keywords:		Gc-ms MHS-SPME sampling accurate quantification of volatiles aroma blueprint dried fruits and nuts volatile organic compounds;
Notes:		"PubMed-not-MEDLINECaratti, Andrea Squara, Simone Stilo, Federico Battaglino, Sonia Liberto, Erica Cincera, Irene Genova, Giuseppe Spigolon, Nicola Bicchi, Carlo Cordero, Chiara eng No grant number/Soremartec Italia SRL/ Switzerland 2022/10/15 Foods. 2022 Oct 6; 11(19):3111. doi: 10.3390/foods11193111"