The effect of modified atmospheres on the rate of firmness change in Braeburn apples.
Hertog, M. L. A. T. M., Nicholson, S. E., and Banks, N. H.
Postharvest Biology and Technology, Volume 23, Number 3, December 2001 , pp. 175-184.
2001
บทคัดย่อ
Gas exchange rates and softening of apples cv. Braeburn were measured under a range of modified atmosphere conditions to characterize their functional relationship. Both gas exchange (measured as CO2 production) and softening were maximally suppressed at around 1-1.5 kPa O2. At these low O2 levels, CO2 had no effect on the rate of softening. Both softening and gas exchange had comparable Km values indicating a common kinetic background. The integrated approach revealed a close quantitative relationship between rate of softening and rate of gas exchange of Braeburn indicating that fruit softening is directly metabolically linked to gas exchange. Due to the less efficient character of fermentation, the softening of Braeburn correlated more closely to respiration than to fermentation.