บทคัดย่องานวิจัย

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Effect of high carbon dioxide storage and gamma irradiation on membrane deterioration in cauliflower florets.

Voisine, R.; Hombourger, C.; Willemot, C.; Castaigne, D.; Makhlouf, J.;

Postharvest Biology and Technology Year: 1993 Vol: 2 Issue: 4 Pages: 279-289 Ref: 28 ref.

1993

บทคัดย่อ

Effect of high carbon dioxide storage and gamma irradiation on membrane deterioration in cauliflower florets.

Cauliflower florets irradiated or not with gamma rays (2 kGy) were stored for 8 days at 13 deg C in air or in high CO2 (15% CO2, 21% O2, remainder N2). Both irradiation and storage (in air or high CO2) accelerated the deterioration of microsomal membranes during storage and caused an early loss in lipid phosphate. Irradiation enhanced the free fatty acid content of the membranes during storage and caused extensive protein loss. When irradiation and high CO2 storage were combined, electrolyte leakage significantly increased while protein loss was considerably reduced. The results indicate that high CO2 and irradiation accelerate membrane degradation through different mechanisms. The combined effects of the treatments were not additive, but membrane yield was apparently reduced. CO2 protected the membranes from protein loss induced by irradiation. It is suggested that the apparent increase in electrolyte leakage after irradiation may be caused by the release of ions following cell wall deteriorati

on.