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Juice quality traits, potassium content, and 1H NMR derived metabolites of 14 pomegranate cultivars

Juice quality traits, potassium content, and 1H NMR derived metabolites of 14 pomegranate cultivars BACKGROUND:Pomegranate (Punica granatum L.) juice is a highly-valued beverage that has been demonstrated to have large quantities of polyphenolic compounds with powerful antioxidant properties. Currently there is limited information related to other components of the juices of USDA germplasm.OBJECTIVE:Preselected pomegranate germplasm was evaluated to identify unique cultivars with consumer-friendly traits and to select candidates that meet or exceed juice quality parameters of ‘Wonderful’ juice.METHODSJuices from 14 cultivars and commercial pomegranate juice were analyzed using a variety of methods. Juice quality was determined by measuring pH, titratable acidity, citrate, malate, total soluble solids, maturity index, glucose, fructose, γ-Aminobutyric acid (GABA), antioxidant activity, total phenolics, potassium, glutamate, glutamine, and ethanol.RESULTSCandidate cultivars meeting ‘Wonderful’ juice quality specifications and nutritional profile were identified as were candidates with desirable traits not seen in ‘Wonderful’. There were significant differences among cultivars in pH, titratable acidity, citrate, malate, total soluble solids, maturity index, glucose, fructose, GABA, potassium, glutamate, glutamine, and ethanol. There was no evidence for differences in antioxidant activity and total phenolics of juices among cultivars.CONCLUSIONS:Pomegranate cultivars other than ‘Wonderful’ could provide a broader palette of flavors for the consumer, but more research is needed to determine commercial potential of USDA germplasm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Berry Research IOS Press

Juice quality traits, potassium content, and 1H NMR derived metabolites of 14 pomegranate cultivars

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Publisher
IOS Press
Copyright
Copyright © 2019 © 2019 – IOS Press and the authors. All rights reserved
ISSN
1878-5093
DOI
10.3233/JBR-180344
Publisher site
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Abstract

BACKGROUND:Pomegranate (Punica granatum L.) juice is a highly-valued beverage that has been demonstrated to have large quantities of polyphenolic compounds with powerful antioxidant properties. Currently there is limited information related to other components of the juices of USDA germplasm.OBJECTIVE:Preselected pomegranate germplasm was evaluated to identify unique cultivars with consumer-friendly traits and to select candidates that meet or exceed juice quality parameters of ‘Wonderful’ juice.METHODSJuices from 14 cultivars and commercial pomegranate juice were analyzed using a variety of methods. Juice quality was determined by measuring pH, titratable acidity, citrate, malate, total soluble solids, maturity index, glucose, fructose, γ-Aminobutyric acid (GABA), antioxidant activity, total phenolics, potassium, glutamate, glutamine, and ethanol.RESULTSCandidate cultivars meeting ‘Wonderful’ juice quality specifications and nutritional profile were identified as were candidates with desirable traits not seen in ‘Wonderful’. There were significant differences among cultivars in pH, titratable acidity, citrate, malate, total soluble solids, maturity index, glucose, fructose, GABA, potassium, glutamate, glutamine, and ethanol. There was no evidence for differences in antioxidant activity and total phenolics of juices among cultivars.CONCLUSIONS:Pomegranate cultivars other than ‘Wonderful’ could provide a broader palette of flavors for the consumer, but more research is needed to determine commercial potential of USDA germplasm.

Journal

Journal of Berry Research – IOS Press

Published: Jan 1, 2019

References

  • The pomegranate: A new look at the fruit of paradise
    Stover
  • Effects of site and cultivar on consumer acceptance of pomegranate
    Chater
  • Physicochemical properties and aroma volatile profiles in a diverse collection of California-grown pomegranate (Punica granatum L.) germplasm
    Beaulieu
  • Register of New Fruit and Nut Cultivars List 47: Pomegranate
    Chater
  • Register of new fruit and nut cultivars list 48: Pomegranate
    Preece
  • Fruit quality traits of ten California-grown pomegranate cultivars harvested over three months
    Chater