Abstract
Abstract A short shelf life usually limits the distribution and supply of pomegranate arils. Since zinc (Zn) has an indispensable role in the nutrient integrity of our diet and is effective in suppressing pathogens, this study was done as two separate experiments of pre-harvest spraying and postharvest dipping of arils with two zinc supplements, including nano zinc oxide (nZnO) and zinc sulfate (ZnSO 4 ). The optimized concentration of both sources was used in the experiment. The pre-harvest treatment failed to extend the shelf life of arils, and, ultimately, the arils decayed after 15 days. However, the postharvest zinc treatment significantly (P < 0.01) affected all measured indices. Also, zinc sulfate was more effective than nZnO. Zn uptake was higher in postharvest treatments because exogenous Zn was in direct contact with the aril surface. After dissolving in water, Zn ions in sulfate bind to the membrane of microorganisms and thus delay cell division and microbial growth cycle. The solubility of zinc oxide nanoparticles in water is poor. Using the ZnSO 4 treatment (0.8%W/V) effectively maintained the values of titratable acidity (TA), total phenolic content (TPC), total soluble solids (TSS), anthocyanin content, and antioxidant activity. Also, this treatment significantly controlled weight loss in the arils.
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Claims 7
Claim · model-written summary
Preharvest zinc spraying did not extend aril shelf life; arils decayed after 15 days.
- Taxon
- pomegranate
Punica granatumt0 - Treatment
- pre-harvest treatmente0
- Outcome
- shelf life of arilse0
- Direction
- failed to extende0
- Value
- 15 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pre-harvest treatment failed to extend the shelf life of arils, and, ultimately, the arils decayed after 15 days”
t0“pomegranate”
Claim · model-written summary
Postharvest zinc significantly affected all measured quality indices.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- postharvest zinc treatmente0
- Outcome
- all measured indicese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the postharvest zinc treatment significantly (P < 0.01) affected all measured indices”
t0“pomegranate”
Claim · model-written summary
Zinc sulfate was more effective than nano zinc oxide.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- zinc sulfatee0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- nZnOe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“zinc sulfate was more effective than nZnO”
t0“pomegranate”
Claim · model-written summary
Aril zinc uptake was higher following postharvest than preharvest treatment.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- postharvest treatmentse0
- Outcome
- Zn uptakee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn uptake was higher in postharvest treatments because exogenous Zn was in direct contact with the aril surface”
t0“pomegranate”
Claim · model-written summary
Zinc sulfate at 0.8% maintained acidity, phenolics and soluble solids.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- ZnSO 4 treatment (0.8%W/V)e0
- Outcome
- titratable acidity (TA), total phenolic content (TPC), total soluble solids (TSS)e0
- Direction
- maintainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using the ZnSO 4 treatment (0.8%W/V) effectively maintained the values of titratable acidity (TA), total phenolic content (TPC), total soluble solids (TSS), anthocyanin content, and antioxidant activity”
t0“pomegranate”
Claim · model-written summary
Zinc sulfate at 0.8% maintained anthocyanins and antioxidant activity.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- ZnSO 4 treatment (0.8%W/V)e0
- Outcome
- anthocyanin content, and antioxidant activitye0
- Direction
- maintainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using the ZnSO 4 treatment (0.8%W/V) effectively maintained the values of titratable acidity (TA), total phenolic content (TPC), total soluble solids (TSS), anthocyanin content, and antioxidant activity”
t0“pomegranate”
Claim · model-written summary
Zinc sulfate significantly controlled aril weight loss.
- Taxon
- pomegranatePunica granatumt0
- Treatment
- this treatmente0
- Outcome
- weight loss in the arilse0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this treatment significantly controlled weight loss in the arils”
t0“pomegranate”
The same questions in other papers
zinc sulfate · quality: sugar starch · Punica granatum (pomegranate)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
zinc sulfate · quality: phytochemicals · Punica granatum (pomegranate)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.