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Changes in pomegranate anthocyanins, phenylalanine ammonia lyase and glucosyltransferase in response to carbon dioxide treatments.

Author(s) : GIL M. I., HOLCROFT D. M., KADER A. A.

Summary

The authors investigated the influence of CO2 on the changes in aril pigmentation in pomegranate and on activity of phenylalanine ammonia lyase (PAL) and UDP-glucose: flavonoid 3-O-glucosyltransferase in California-grown Wonderful pomegranates. Pomegranates were placed in jars and ventilated with air or air enriched with 10% CO2 at 10 °C and were analyzed initially, and after 1, 2, 4 and 6 weeks. Six anthocyanins were identified and quantified. CO2 treatments inhibited the growth of decay organisms compared with air stored fruits. CO2 had no effect on pH, titratable acidity and soluble solids content of pomegranate juice. Evolutions of anthocyanin content, monoglucoside derivatives, diglucosides, PAL activity and GT activity were observed and measured.

Details

  • Original title: Changes in pomegranate anthocyanins, phenylalanine ammonia lyase and glucosyltransferase in response to carbon dioxide treatments.
  • Record ID : 2001-0283
  • Languages: English
  • Source: CA '97. Proceedings of the 7th international controlled atmosphere research conference.
  • Publication date: 1997/07/13
  • Document available for consultation in the library of the IIR headquarters only.

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