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STORAGE TIME-TEMPERATURE RELATIONSHIP AND STABILITY OF CHLOROPHYLLS, COLOUR AND TOTAL VOLATILE EMISSION IN FROZEN PARSLEY.

RELATION TEMPERATURE-DUREE D'ENTREPOSAGE ET MAINTIEN DES CHLOROPHYLLES, DE LA COULEUR ET DE L'EMISSION VOLATILE GLOBALE DU PERSIL CONGELE.

Author(s) : PHILIPPON J.

Type of article: Article

Summary

THE TEST WAS CARRIED OUT AT 265, 261, 257, 253 AND 208 K (-8, -12, -16, -20 AND -65 DEG C). THE RESULTS ARE AS FOLLOWS: THE LIMITS OF HIGH LEVEL QUALITY (H LQ) TIMES INCREASE, FOR ODOUR, TO 23% OF VOLATILE ORGANIC EMISSION, AND FOR COLOUR, TO 20% OF ORIGINAL CHLOROPHYLLS ; AT 253 K, HLQ IS 16 DAYS FOR ODOUR AND 3 YEARS FOR COLOUR ; OFF-COLOUR AND THE DECREASE IN VOLATILE ORGANIC EMISSION VARY EXPONENTIALLY WITH TEMPERATURE ; THE SUSCEPTIBILITY OF COLOUR TO TEMPERATURE VARIATIONS (Q10 = 26) IS MARKEDLY GREATER THAN THAT OF AROMAS (Q10 = 3,3). WHEN OFF-COLOUR BEGINS BEING PERCEPTIBLE, THE PRODUCT HAS ALREADY LOST MOST OF ITS AROMATIC PROPERTIES.

Details

  • Original title: RELATION TEMPERATURE-DUREE D'ENTREPOSAGE ET MAINTIEN DES CHLOROPHYLLES, DE LA COULEUR ET DE L'EMISSION VOLATILE GLOBALE DU PERSIL CONGELE.
  • Record ID : 1987-0541
  • Languages: French
  • Source: Sci. Aliments - vol. 6 - n. 3
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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