Volatile emission after controlled atmosphere storage of Mondial Gala apples (Malus domestica): relationship to some involved enzyme activities
MetadataShow full item record
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.
Is part ofJournal of Agricultural and Food Chemistry, 2007, vol. 55, núm. 15, p. 6087-6095
Showing items related by title, author, creator and subject.
Quality and volatile emission changes of ‘Mondial Gala’ apples during on-tree maturation and postharvest storage in air or controlled atmosphere Graell i Sarle, Jordi; López Fructuoso, Mª Luisa; Fuentes, T.; Echeverría Cortada, Gemma; Lara Ayala, Isabel (SAGE Publications, 2008)Starch index (SI), color, firmness, titratable acidity (TA), soluble solids content (SSC), ethylene production, and aroma volatile emission were recorded weekly during on-tree maturation of ‘Mondial Gala’ apples. Fruit ...
Physicochemical measurements in ‘Mondial Gala®’ apples stored at different atmospheres: Influence on consumer acceptability Echeverría Cortada, Gemma; Graell i Sarle, Jordi; Lara Ayala, Isabel; López Fructuoso, Mª Luisa (Elsevier, 2008)Standard quality parameters, consumer acceptability, emission of volatile compounds and ethylene production of ‘Mondial Gala®’ apples (Malus × domestica Borkh.) were determined in relation to storage atmosphere, storage ...
Long-term storage of Pink Lady apples modifies volatile-involved enzyme activities: consequences on production of volatile esters Villatoro Gonzàlez, Carmen; Echeverría Cortada, Gemma; Graell i Sarle, Jordi; López Fructuoso, Mª Luisa; Lara Ayala, Isabel (American Chemical Society, 2008)Pink Lady apples were harvested at commercial maturity and stored at 1 °C and 92% relative humidity under either air or controlled atmosphere conditions (2 kPa O2:2 kPa CO2 and 1 kPa O2:1 kPa CO2) for 27 weeks. Data on ...