Oscillating pressure storage and gas exchange in apple fruit

Authors

  • Adonai Gimenes Calbo
  • Noel F. Sommer

DOI:

https://doi.org/10.1590/S1678-3921.pab1988.v23.13791

Keywords:

Malus domestica, controlled atmosphere, hypobaric storage

Abstract

An oscillating pressure storage system that is adapted to fruits and vegetables having low mass air flow resistance, is proposed. Periodic variations in air pressure induces high rates of gas exchange and reduces the internal level of ethylene. Apple (Malus domestica Borkh) fruit was used as the model commodity because it has a large intercellular volume and low mass air flow resistance. Frequency of 1 cycle/min and maximum pressure (Pi) to minimum pressure (Pf) reduction ratios [(Pi - Pf)/Pi)] 0.22 and 0.34, were tested in two storage trials. Oscillating pressure storage extended the preclimacteric life and decreased the rate of ethylene evolution from 'Gravenstein' and 'Granny Smith' apple. The pressure reduction ratio of 0.34 was more effective than 0.22. The effects of elevated CO2 and oscillating pressure were additive. The potentiality of oscillating pressure as a substitute for the hypobaric storage is discussed.

 

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How to Cite

Calbo, A. G., & Sommer, N. F. (2014). Oscillating pressure storage and gas exchange in apple fruit. Pesquisa Agropecuaria Brasileira, 23(2), 145–152. https://doi.org/10.1590/S1678-3921.pab1988.v23.13791

Issue

Section

PLANT PHYSIOLOGY