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ROLE OF INTERNAL OXYGEN AND CARBON DIOXIDE IN THE FERMENTATION ACTIVITY OF GRANNY SMITH APPLES STORED AT 303 K (30 DEG C).

LE ROLE DE L'OXYGENE ET DU GAZ CARBONIQUE INTERNES DANS L'ACTIVITE FERMENTAIRE DES POMMES GRANNY SMITH CONSERVEES A 303 K (30 DEG C).

Author(s) : MANOLOPOULOU-LAMBRINOU H.

Type of article: Article

Summary

GRANNY SMITH APPLES STORED AT 303 K DISPLAY ABNORMAL RIPENING ACCOMPANIED BY FERMENTATION. THE PERCENTAGE OF INTERNAL GASES (O2 AND CO2 ) IS RESPONSIBLE FOR THE ACCUMULATION OF ACETALDEHYDE AND ETHANOL. PERFUSION BY MIXTURES ENRICHED WITH 21 TO 50% OXYGEN RETARDS FERMENTATION. APPLES HELD INA 50% O2 ATMOSPHERE PRESENT A MUCH GREATER FERMENTATION ACTIVITY, CONTRARY TO APPLES PERFUSED WITH THE SAME MIXTURE ; CARBON DIOXIDE GAS ACCUMULATED IN TISSUES IS THEREFORE RESPONSIBLE. THE INCREASE IN THE OXYGEN PERCENTAGE TO 30, 40 AND 50% STIMULATES RESPIRATION. AT 303 K AN OXYGEN PERCENTAGE LOWER THAN 30% IS A FACTOR WHICH LIMITS RESPIRATION, WHEREAS THE CRITICAL OXYGEN PRESSURE RANGES BETWEEN 30 AND 50%.

Details

  • Original title: LE ROLE DE L'OXYGENE ET DU GAZ CARBONIQUE INTERNES DANS L'ACTIVITE FERMENTAIRE DES POMMES GRANNY SMITH CONSERVEES A 303 K (30 DEG C).
  • Record ID : 1988-0618
  • Languages: French
  • Source: Rev. gén. Froid - vol. 77 - n. 9
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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