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Modified atmosphere storage of ripening tomatoes: effect on quality and metabolism of C(14)-glucose and C(14)-acetate.

Author(s) : ONWUZULU O. C., PRABHA T. N., RANGANNA S.

Type of article: Article

Summary

Freshly harvested mature green tomatoes (cv. Rupali) were packaged in 120-gauge low density polyethylene pouches and kept at 28 plus or minus 3 deg C. Fruits packed thus and exposed to atmospheric air for 10 minutes at intervals up to 12 days had improved quality on the 24th day of ambient storage compared with those not exposed to ambient air. Fruits kept continuously for 12 days under modified-atmosphere had a package atmosphere of 4% O2 + 5% CO2 after 4 days and fruit ripening was delayed until re-exposure to ambient air. Although elevated levels of CO2 from continuous exposure to modified-atmosphere were effective in retarding colour development of tomatoes, they were not effective in halting spoilage. The metabolic fate of C(14)-glucose and C(14)-acetate applied through the stem end of unripe and ripe tomatoes was investigated. Respiratory losses were identical in all the treatments, as was the partitioning of C(14) between CO2 and alcohol-soluble and -insoluble fractions.

Details

  • Original title: Modified atmosphere storage of ripening tomatoes: effect on quality and metabolism of C(14)-glucose and C(14)-acetate.
  • Record ID : 1997-0329
  • Languages: English
  • Source: Trop. Sci. - vol. 35 - n. 3
  • Publication date: 1995

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