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Ripening pawpaw fruit exhibit respiratory and ethylene climacterics.

Author(s) : ARCHBOLD D. D., POMPER K. W.

Type of article: Article

Summary

The ripening behaviour of the native American pawpaw (Asimina triloba (L.) Dunal.) fruit was studied immediately after harvest and after 1 month of 4 °C storage. Fruit were harvested at two different maturity stages. Fruit that were unripe at harvest exhibited respiratory and ethylene climacterics at 3 and 5 days postharvest, respectively, at ambient temperature, and a precipitous decline in fruit firmness prior to the climacteric peaks. Fruit classified as having commenced ripening at harvest exhibited both respiratory and ethylene climacteric peaks at 3 day at ambient storage temperature. Fruit in cold storage at 4 °C for 28 days exhibited minimal to no loss of firmness, and upon removal to ambient temperature both respiratory and ethylene climacterics occurred within 7 days for both harvest maturities. The maximum rates of respiration and ethylene production in these studies. These results indicate that pawpaw fruit ripening is climacteric.

Details

  • Original title: Ripening pawpaw fruit exhibit respiratory and ethylene climacterics.
  • Record ID : 2004-1807
  • Languages: English
  • Source: Postharvest Biol. Technol. - vol. 30 - n. 1
  • Publication date: 2003/10

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