Abstract
BACKGROUND: No information exists on the consequences of water stress on the pomegranate (Punica granatum L.) tree in terms of the quality and health/nutritional properties of its juice. In this study the influence of two different sustained deficit irrigation treatments on the colour, antioxidant activity and total phenolic compound, total anthocyanin, punicalagin and ellagic acid contents of pomegranate juice was assessed. RESULTS: Control plants were irrigated at 75% ETo (crop reference evapotranspiration) in order to ensure non-limiting soil water conditions, while others were subjected to sustained deficit irrigation at 43 and 12% ETo throughout the experimental period. Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants. CONCLUSION: Pomegranate juice from trees under sustained deficit irrigation was of lower quality and less healthful than that from trees without water stress. From a nutritional point of view, this means that a reduction in irrigation provides a dramatic decrease in bioactive phenolic compounds, especially anthocyanins and punicalagin, and consequently a lower visual attraction of the juice owing to the weak red colour of the fruit.
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Claims 5
Claim · model-written summary
Moderate and severe water stress produced more yellowish colour in pomegranate juice than controls.
- Taxon
- pomegranate
Punica granatume0 - Treatment
- moderate (43%) and severe (12%) water stress treatmentse0
- Outcome
- yellowish coloure0
- Direction
- moree0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants”
Claim · model-written summary
Moderate and severe water stress produced lower antioxidant activity in pomegranate juice than controls.
- Taxon
- pomegranatePunica granatume0
- Treatment
- moderate (43%) and severe (12%) water stress treatmentse0
- Outcome
- antioxidant activitye0
- Direction
- lowere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants”
Claim · model-written summary
Moderate and severe water stress produced lower total phenolic compound in pomegranate juice than controls.
- Taxon
- pomegranatePunica granatume0
- Treatment
- moderate (43%) and severe (12%) water stress treatmentse0
- Outcome
- total phenolic compounde0
- Direction
- lowere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants”
Claim · model-written summary
Moderate and severe water stress produced lower punicalagin in pomegranate juice than controls.
- Taxon
- pomegranatePunica granatume0
- Treatment
- moderate (43%) and severe (12%) water stress treatmentse0
- Outcome
- punicalagine0
- Direction
- lowere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants”
Claim · model-written summary
Moderate and severe water stress produced lower total anthocyanin contents in pomegranate juice than controls.
- Taxon
- pomegranatePunica granatume0
- Treatment
- moderate (43%) and severe (12%) water stress treatmentse0
- Outcome
- total anthocyanin contentse0
- Direction
- lowere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both moderate (43%) and severe (12%) water stress treatments led to pomegranate juices with a more yellowish colour, lower antioxidant activity and lower total phenolic compound, punicalagin and total anthocyanin contents than those from control plants”
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1 paper in the same direction as this paper · 1 in the opposite direction
- positive
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.