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SKIN PERMEABILITY TO OXYGEN IN APPLES STORED IN CONTROLLED ATMOSPHERE.

Author(s) : ANDRICH G.

Type of article: Article

Summary

THE SKIN PERMEABILITY TO O2 -DIFFUSION AND THE MASS TRANSFER EQUILIBRIUM CONSTANT FOR < SUPER GOLDEN DELICIOUS > SPUR AND < RED STARK > HAVE BEEN STUDIED. A DIRECT PROPORTIONALITY BETWEEN THE O2 -EXCHANGE INITIAL RATE AND THE ENVIRONMENTAL PRESSURE OF OXYGEN IS SHOWN BY A LINEAR REGRESSION LINE PASSING NEAR THE ORIGIN OF THE AXES. THIS ALLOWS THE CALCULATION OF THE 2 INVOLVED CONSTANTS: THE EQUILIBRIUM MASS-TRANSFER CON-STANT AND THE KINETIC CONSTANT, WHICH REPRESENTS A SUITABLE MEASURE OF PERMEABILITY OF THE APPLE SKIN. AS PERMEABILITY INCREASES WITH RIPENING, TO REACH A MAXIMUM NEAR THE COMMERCIAL HARVESTING TIME, THIS PARAMETER COULD BEUSED AS A RIPENING INDEX.

Details

  • Original title: SKIN PERMEABILITY TO OXYGEN IN APPLES STORED IN CONTROLLED ATMOSPHERE.
  • Record ID : 1990-1465
  • Languages: English
  • Source: J. am. Soc. hortic. Sci. - vol. 114 - n. 5
  • Publication date: 1989/09
  • Document available for consultation in the library of the IIR headquarters only.

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