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Influence de l'emballage sous atmosphère modifiée et du traitement au calcium sur la cinétique de la dégradation de l'acide ascorbique et de la perte de masse des goyaves (Psidium guajava L.).

Influência da embalagem de atmosfera modificada e do tratamento com cálcio na cinética de degradação de ácido ascórbico e perda de massa em goiabas (Psidium guajava L.).

Auteurs : YAMASHITA F., BENASSI M. de T.

Type d'article : Article

Résumé

Guava cv. Pedro Sato at the green colour stage were treated (10-min immersion) or not with 2% calcium chloride solution then packed in Cryovac PD-900 or Cryovac PD-961 film or left unpacked. All fruits were stored at 8 °C (85-95% RH) for 49 days. Packed fruits showed lower weight-loss rates than controls. The ascorbic acid degradation rate was not affected by Ca treatment. The best retention of ascorbic acid was shown by fruits wrapped in PD-900 film. Fruits were in good condition for 4 weeks when wrapped, and even for 6 weeks if wrapped in PD-900 film.

Détails

  • Titre original : Influência da embalagem de atmosfera modificada e do tratamento com cálcio na cinética de degradação de ácido ascórbico e perda de massa em goiabas (Psidium guajava L.).
  • Identifiant de la fiche : 2003-1383
  • Langues : Portugais
  • Source : Ciênc. Tecnol. Aliment. - vol. 20 - n. 1
  • Date d'édition : 2000

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