Volatile emission after controlled atmosphere storage of Mondial Gala apples (Malus domestica): relationship to some involved enzyme activities

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Issue date
2007
Author
Lara Ayala, Isabel
Echeverría Cortada, Gemma
Graell i Sarle, Jordi
López Fructuoso, Mª Luisa
Suggested citation
Lara Ayala, Isabel; Echeverría Cortada, Gemma; Graell i Sarle, Jordi; López Fructuoso, Mª Luisa; . (2007) . Volatile emission after controlled atmosphere storage of Mondial Gala apples (Malus domestica): relationship to some involved enzyme activities. Journal of Agricultural and Food Chemistry, 2007, vol. 55, núm. 15, p. 6087-6095. https://doi.org/10.1021/jf070464h.
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Abstract
Mondial Gala apples were harvested at commercial maturity and stored at 1 °C under either air or controlled atmosphere (CA) conditions (2 kPa O2/2 kPa CO2 and 1 kPa O2/1 kPa CO2), where they remained for 3 or 6 months. Data on emission of selected volatile esters, alcohol precursors, and activity of some aroma-related enzymes in both peel and pulp tissues were obtained during subsequent shelf life of fruit and submitted to multivariate analysis procedures. CA storage caused a decrease in the emission of volatile esters in comparison to storage in air. Results suggest that lessened ester production was the consequence of modifications in activities of alcohol o-acyltransferase (AAT) and lipoxygenase (LOX) activities. For short-term storage, inhibition of lipoxygenase activity in CA stored fruit possibly led to a shortage of lipid-derived substrates, resulting in decreased production of volatile esters in spite of substantial ester-forming capacity that allowed for some recovery of fruit capacity for ester emission during the shelf life. For long-term storage, strong inhibition of AAT activity in CA stored fruit in combination with low LOX activities resulted in unrecoverable diminution of biosynthesis of volatile esters.
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http://hdl.handle.net/10459.1/57784
DOI
https://doi.org/10.1021/jf070464h
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Journal of Agricultural and Food Chemistry, 2007, vol. 55, núm. 15, p. 6087-6095
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