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Membrane deterioration during postharvest senescence of broccoli florets: modulation by temperature and controlled atmosphere storage.

Author(s) : DESCHENE A., PALIYATH G., LOUGHEED E. C., et al.

Type of article: Article

Summary

When freshly cut heads of broccoli were stored in air at 23 or 10 deg C, the florets rapidly senesced. Chlorophyll levels, microsomal phospholipid phosphate and fatty acids in the florets declined under the same storage conditions. The breakdown of membrane phospholipids was accompanied by a large decrease in bulk lipid fluidity of the membranes. These changes were temperature-dependent. Storage at 5 or 10 deg C in a controlled atmosphere strongly inhibited loss of chlorophyll and the change in microsomal bulk lipid fluidity reflecting phospholipid breakdown. The observations made, confirm the potential of using controlled atmospheres to enhance the storability of broccoli and identify physiological and biochemical parameters of floret senescence that can be used to establish optimum controlled atmosphere conditions.

Details

  • Original title: Membrane deterioration during postharvest senescence of broccoli florets: modulation by temperature and controlled atmosphere storage.
  • Record ID : 1993-0958
  • Languages: English
  • Source: Postharvest Biol. Technol. - vol. 1 - n. 1
  • Publication date: 1991

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