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OBJECTIVE METHODS FOR THE INDICATION OF POSTRIPENING AND OVER-RIPENING IN STORED APPLES.

Author(s) : KALLAY T.

Type of article: Article

Summary

THE QUALITY INDEX AS SUGGESTED BY THIAULT (1970) PROVED TO BE CHARACTERISTIC OF THE TENDENCIES OF POST-RIPENING DURING STORAGE (TOTAL SUGAR CONTENT + 10 X TITRATABLE MALIC ACID). IN APPLES STORED WITH A HIGHER STORAGE POTENTIAL THIS QUALITY INDEX INCREASED DURING A LONGER PERIOD THAN IN APPLES OF LOWER STORAGE POTENTIAL. IN CONTROLLED ATMOSPHERE APPLES STORED WITH PRACTICALLY IDENTICAL STORAGE POTENTIAL SHOWED AN EXTENDED POSITIVE POST-RIPENING PERIOD. JONATHAN APPLES POSSESS A HIGH QUALITY INDEX. DURING STORAGE IN NORMAL ATMOSPHERE THIS INDEX DECLINES AT FIRST AT A LOWER RATE BUT LATER AT AN INCREASED RATE. THIS PHENOMENON SHOULD BE ATTRIBUTED UNAMBIGUOUSLY TO SENESCENCE, SINCE PARALLEL TO THE DECREASE IN THE QUALITY INDEX, THE PROPORTION OF APPLES ATTACKED BY STORAGE DISEASES INCREASED.

Details

  • Original title: OBJECTIVE METHODS FOR THE INDICATION OF POSTRIPENING AND OVER-RIPENING IN STORED APPLES.
  • Record ID : 1982-0839
  • Languages: English
  • Source: Acta Aliment. - vol. 10 - n. 3
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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