ISHS Acta Horticulturae 157: Postharvest Handling of Vegetables
THE OXYGEN AFFINITY OF ETHYLENE PRODUCTION BY SLICES OF APPLE FRUIT TISSUE |
| Authors: | Nigel H. Banks, Salah M. Elyatem, M. T. Hammat |
| Abstract:
Oxygen concentrations in the range 0.7–36% by volume affected the rate of ethylene production of slices of apple tissue; maximum rates of ethylene production occurred in air. Extrapolation of graphs of rate of ethylene production against oxygen concentration to the x-axis suggested the presence of surprisingly large depressions of oxygen concentration within the tissue (mean = 0.5 ± 0.25% oxygen) and adjusting for these gradients reduced the estimate of the apparent KmO2 of ethylene production by the tissue from 1.7% ± 0.39% oxygen to 1.2% ± 0.21% oxygen. This value suggests that ethylene production by ripening apples could be directly inhibited by controlled atmosphere storage. | |
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