| Title: | Influence of harvest maturity and fruit logistics on pineapple (Ananas comosus [L.] Merr.) volatiles assessed by headspace solid phase microextraction and gas chromatography-mass spectrometry (HS-SPME-GC/MS) |
| Author(s): | Steingass CB; Grauwet T; Carle R; |
| Address: | "Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology, Hohenheim University, Garbenstrasse 25, 70599 Stuttgart, Germany. Electronic address: christof.steingass@uni-hohenheim.de. Laboratory of Food Technology, Leuven Food Science and Nutrition Research Centre, Department of Microbial and Molecular Systems, Katholieke Universiteit Leuven, Kasteelpark Arenberg 22 Box 2457, 3001 Heverlee, Belgium. Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology, Hohenheim University, Garbenstrasse 25, 70599 Stuttgart, Germany" |
| DOI: | 10.1016/j.foodchem.2013.10.092 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Profiling of volatiles from pineapple fruits was performed at four ripening stages using headspace solid-phase microextraction and gas chromatography-mass spectrometry (HS-SPME-GC/MS). In total, 142 volatiles were detected, of which 132 were identified. Multivariate data analysis was carried out to assess the effect of post-harvest storage on volatiles composition of green-ripe sea-freighted pineapple in comparison to air-freighted fruits harvested at full maturity. The latter fruits were characterised by volatiles described as potent odorants in pineapples, such as delta-octalactone, gamma-lactones, 1-(E,Z)-3,5-undecatriene and 1,3,5,8-undecatetraene, as well as various methyl esters. In contrast, post-harvest storage of green-ripe sea-freighted fruits resulted in an increased formation of ethyl esters, acetates, acetoxy esters and alcohols, thus allowing the authentication of sea- and air-freighted pineapples, respectively. Particularly, compounds presumably derived from methyl-branched amino acid catabolism were identified in the fruits at later post-harvest stages. In addition, physicochemical traits were determined to characterise the fruit maturity stages" |
| Keywords: | Ananas/*chemistry/growth & development Fruit/chemistry/*growth & development Gas Chromatography-Mass Spectrometry Molecular Structure Odorants/analysis Solid Phase Microextraction Volatile Organic Compounds/*chemistry/isolation & purification Multivariate; |
| Notes: | "MedlineSteingass, Christof B Grauwet, Tara Carle, Reinhold eng Research Support, Non-U.S. Gov't England 2013/12/24 Food Chem. 2014 May 1; 150:382-91. doi: 10.1016/j.foodchem.2013.10.092. Epub 2013 Nov 1" |
