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Anal Bioanal Chem

Title:		Ripening-dependent metabolic changes in the volatiles of pineapple (Ananas comosus (L.) Merr.) fruit: I. Characterization of pineapple aroma compounds by comprehensive two-dimensional gas chromatography-mass spectrometry
Author(s):		Steingass CB; Carle R; Schmarr HG;
Address:		"Institute of Food Science and Biotechnology, Plant Foodstuff Technology and Analysis, Hohenheim University, Garbenstrasse 25, 70599, Stuttgart, Germany, christof.steingass@uni-hohenheim.de"
Journal Title:		Anal Bioanal Chem
Year:		2015
Volume:		20150221
Issue:		9
Page Number:		2591 - 2608
DOI:		10.1007/s00216-015-8474-z
ISSN/ISBN:		1618-2650 (Electronic) 1618-2642 (Linking)
Abstract:		"Qualitative ripening-dependent changes of pineapple volatiles were studied via headspace solid-phase microextraction and analyzed by comprehensive two-dimensional gas chromatography quadrupole mass spectrometry (HS-SPME-GCxGC-qMS). Early green-ripe stage, post-harvest ripened, and green-ripe fruits at the end of their commercial shelf-life were compared to air-freighted pineapples harvested at full maturity. In total, more than 290 volatiles could be identified by mass spectrometry and their linear retention indices. The majority of compounds comprise esters (methyl and ethyl esters of saturated and unsaturated fatty acids, acetates), terpenes, alcohols, aldehydes, 2-ketones, free fatty acids, and miscellaneous gamma- and delta-lactones. The structured separation space obtained by GCxGC allowed revealing various homologous series of compound classes as well as clustering of sesquiterpenes. Post-harvest ripening increased the diversity of the volatile profile compared to both early green-ripe maturity stages and on-plant ripened fruits"
Keywords:		Ananas/*chemistry/growth & development/metabolism Fruit/chemistry/growth & development/metabolism Gas Chromatography-Mass Spectrometry/instrumentation/*methods Odorants/analysis Volatile Organic Compounds/*chemistry/metabolism;
Notes:		"MedlineSteingass, Christof Bjorn Carle, Reinhold Schmarr, Hans-Georg eng Evaluation Study Research Support, Non-U.S. Gov't Germany 2015/02/24 Anal Bioanal Chem. 2015 Mar; 407(9):2591-608. doi: 10.1007/s00216-015-8474-z. Epub 2015 Feb 21"