Abstract
Pomegranate is a subtropical fruit that affects its cold storage. To ameliorate chilling injury, fruits were treated with malic acid (50 and 100 mM MA) and oxalic acid (5 and 10 mM OA), and then, coated with 2% chitosan (CH) and stored at low temperature (2°C) for 4 months. Treatments significantly delayed the development of browning signs and reduced malondialdehyde and hydrogen peroxide of arils as compared to control. CH+ 5 mM OA resulted in the highest catalase activity in arils during storage. Anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity of arils were higher in CH+ 5 mM OA and CH+ 50 mM MA-treated fruit. Also, the minimum PPO and POD activity of arils was found in CH+ 5 mM OA. Overall, CH edible coating following organic acids treatment, and especially 5 mM OA and 50 mM MA are beneficial treatments for preserving the quality of pomegranate fruit during storage. PRACTICAL APPLICATIONS: Pomegranate fruit waste is high due to chilling sensitivity during cold storage. Coating fruit with 2% chitosan (CH) alone and with malic acid (50 and 100 mM MA) and oxalic acid (5 and 10 mM OA) could ameliorate chilling injury. Treatments reduce the development of browning signs. Overall, CH edible coating combined with 5 mM OA and 50 mM MA were the most effective treatments for ameliorating the chilling injury of pomegranate fruit.
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Claims 7
Claim · model-written summary
Treatments delayed browning signs relative to control.
- Taxon
- pomegranate fruit
Punica granatumt0 - Treatment
- Treatmentse0
- Outcome
- development of browning signse0
- Direction
- delayede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“Treatments significantly delayed the development of browning signs and reduced malondialdehyde and hydrogen peroxide of arils as compared to control.”
Claim · model-written summary
Treatments reduced aril malondialdehyde and hydrogen peroxide relative to control.
- Taxon
- pomegranate fruitPunica granatumt0
- Treatment
- Treatmentse0
- Outcome
- malondialdehyde and hydrogen peroxide of arilse0
- Direction
- reducede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“Treatments significantly delayed the development of browning signs and reduced malondialdehyde and hydrogen peroxide of arils as compared to control.”
Claim · model-written summary
CH plus 5 mM OA gave the highest aril catalase activity during storage.
- Taxon
- pomegranate fruitPunica granatumt0
- Organ / stage
- arilse0
- Treatment
- CH+ 5 mM OAe0
- Outcome
- catalase activity in arilse0
- Direction
- higheste0
- Qualifier
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“CH+ 5 mM OA resulted in the highest catalase activity in arils during storage.”
Claim · model-written summary
CH plus 5 mM OA produced higher aril anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity.
- Taxon
- pomegranate fruitPunica granatumt0
- Organ / stage
- arilse0
- Treatment
- CH+ 5 mM OAe0
- Outcome
- Anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity of arilse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“Anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity of arils were higher in CH+ 5 mM OA and CH+ 50 mM MA-treated fruit.”
Claim · model-written summary
CH plus 50 mM MA produced higher aril anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity.
- Taxon
- pomegranate fruitPunica granatumt0
- Organ / stage
- arilse0
- Treatment
- CH+ 50 mM MAe0
- Outcome
- Anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity of arilse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“Anthocyanin, ascorbic acid, total phenolic compound, and antioxidant activity of arils were higher in CH+ 5 mM OA and CH+ 50 mM MA-treated fruit.”
Claim · model-written summary
CH plus 5 mM OA gave the minimum aril PPO and POD activity.
- Taxon
- pomegranate fruitPunica granatumt0
- Organ / stage
- arilse0
- Treatment
- CH+ 5 mM OAe0
- Outcome
- PPO and POD activity of arilse0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“the minimum PPO and POD activity of arils was found in CH+ 5 mM OA.”
Claim · model-written summary
The authors recommend chitosan coating after organic acids, especially 5 mM OA and 50 mM MA, for pomegranate storage quality.
- Taxon
- pomegranate fruitPunica granatumt0
- Treatment
- CH edible coating following organic acids treatmente0
- Outcome
- preserving the quality of pomegranate fruit during storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate fruit”
e0“CH edible coating following organic acids treatment, and especially 5 mM OA and 50 mM MA are beneficial treatments for preserving the quality of pomegranate fruit during storage.”
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- positive
- positive
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See all 10 papers →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.