| Literature DB >> 24629937 |
Vanderlei Both1, Auri Brackmann2, Fabio Rodrigo Thewes2, Daniele de Freitas Ferreira3, Roger Wagner3.
Abstract
The aim of this work was to assess the profile of volatile compounds in 'Royal Gala' apples stored under controlled atmosphere (CA), with O(2) levels ranging from 1.0kPa to as low as 0.5kPa during 8months (0.5°C), followed by 7days of shelf-life at 20°C. Volatile compounds were collected via solid-phase microextraction (HS-SPME) and analysed by gas chromatography. Straight and branched-chain esters exhibited a distinct pattern. The emission of straight-chain esters decreased under extremely low O(2) (0.5kPa), while branched-chain esters were not significantly affected in such condition. 2-Methyl-butyl acetate, a significant contributor to the 'Royal Gala' aroma, was higher in intermediate O(2) concentration, suggesting that lowering the O(2) levels down to 0.7kPa does not negatively affect the volatile composition of 'Royal Gala' apples, as compared to the standard CA (1.0kPa O(2)). The remaining volatile compounds were not strongly affected by storing fruits under extremely low O(2).Entities:
Keywords: Aroma; Controlled atmosphere; Ethylene; Malus domestica; Volatile compounds
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Year: 2014 PMID： 24629937 DOI： 10.1016/j.foodchem.2014.01.094
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514