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Advisor(s)
Abstract(s)
This research effort was aimed at evaluating the influence of storage (for 4 mo at 2°C), under various controlled atmospheres (viz. 1.9 kPa O2 + 4.9 kPa CO2, 1.9 kPa O2 + 0.5 kPa CO2 and 1.9 kPa O2 + 0 kPa CO2), on the microstructure of ′Rocha′ pear. Toward this goal, the morphology of cellular disassembly, as well as the quantity of granules and intercellular space using scanning electron microscopy (SEM), were tentatively correlated with sensory and instrumental firmness, by 1, 6 and 8 d of exposure to air, at room temperature, after storage. A specific methodology, based on panel evaluation of SEM images, was developed and statistically validated. The degree of cellular disassembly increased throughout exposure time to air at room temperature. Pears stored under 1.9 kPa O2 + 0.5 kPa CO2 yielded a degree of cellular disassembly similar to that of the control.
Description
Keywords
Pyrus communis Firmness Scanning electron microscopy Image analysis
Citation
FONSECA, S. C. ; MALCATA, F. X. ; GALVIS-SÁNCHEZ, A. C. - Microstructural changes of 'rocha' pear following storage under controlled atmosphere. In International Pear Symposium, 10, Peniche, Portugal, 22-26 May, 2007. In Proceedings of the 10th International Pear Symposium. ISHS Acta Horticulturae. ISSN 0567-7572. N.º 800 (2008). Vol. 2. p. 985-991
Publisher
International Society for Horticultural Science