Abstract
Mechanical damage to banana fruit during transportation leads to substantial quality loss and shortened shelf life. This study investigated the effects of different concentrations (10, 20, and 50 μM) of methyl jasmonate (MeJA) on mechanically injured banana fruits stored at 25°C for 14 days. The results showed that the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days and maintaining fruit greater firmness (95.86 N) on Day 14. It also effectively suppressed the rise in ripening index, decay rate, total soluble solids (TSS) content, and malondialdehyde (MDA) content, thereby preserving better appearance and edible quality. In addition, 10 μM MeJA enhanced antioxidant enzyme activities and strengthened the activities of enzymes associated with disease resistance. On Day 14, the activities of ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL) were significantly higher than those of the control by 2.02- and 1.73-fold, respectively. Meanwhile, the activities of peroxidase (POD), polyphenol oxidase (PPO), β-1,3-glucanase (GLU), and chitinase (CHT) were maintained at levels 48.37%, 37.30%, 13.61%, and 47.77% higher than the control, respectively, at the end of storage. This study indicated that treatment with 10 μM MeJA effectively enhanced the antioxidant ability and disease resistance of mechanically injured banana fruits, thereby maintaining fruit quality during storage and improving the storability.
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Claims 13
Claim · model-written summary
The 10 μM MeJA treatment was identified as the optimal concentration among 10, 20 and 50 μM.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days”
e2“different concentrations (10, 20, and 50 μM)”
Claim · model-written summary
10 μM MeJA delayed the respiration peak by 2 days in mechanically injured banana fruit.
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days”
Claim · model-written summary
10 μM MeJA maintained greater fruit firmness, 95.86 N, on Day 14.
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“maintaining fruit greater firmness (95.86 N) on Day 14”
e2“the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days”
Claim · model-written summary
10 μM MeJA suppressed the rise in ripening index, decay rate and total soluble solids content.
- Taxon
- bananae0
- Treatment
- 10 μM MeJAe2
- Outcome
- ripening index, decay rate, total soluble solids (TSS) contente1
- Direction
- suppressede1
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“It also effectively suppressed the rise in ripening index, decay rate, total soluble solids (TSS) content, and malondialdehyde (MDA) content”
e2“the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days”
Claim · model-written summary
10 μM MeJA suppressed the rise in malondialdehyde content.
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“It also effectively suppressed the rise in ripening index, decay rate, total soluble solids (TSS) content, and malondialdehyde (MDA) content”
e2“the 10 μM MeJA treatment was identified as optimal, delaying the respiration peak by 2 days”
Claim · model-written summary
10 μM MeJA enhanced antioxidant enzyme activities in banana fruit.
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“10 μM MeJA enhanced antioxidant enzyme activities”
Claim · model-written summary
10 μM MeJA strengthened the activities of enzymes associated with disease resistance in banana fruit.
- Taxon
- bananae0
- Treatment
- 10 μM MeJAe1
- Outcome
- activities of enzymes associated with disease resistancee2
- Direction
- strengthenede2
Not reportedComparator
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“10 μM MeJA enhanced antioxidant enzyme activities”
e2“strengthened the activities of enzymes associated with disease resistance”
Claim · model-written summary
10 μM MeJA raised ascorbate peroxidase activity 2.02-fold above the control on Day 14.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL) were significantly higher than those of the control by 2.02- and 1.73-fold”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
Claim · model-written summary
10 μM MeJA raised phenylalanine ammonia-lyase activity 1.73-fold above the control on Day 14.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL) were significantly higher than those of the control by 2.02- and 1.73-fold”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
Claim · model-written summary
10 μM MeJA kept peroxidase activity 48.37% higher than the control at the end of storage.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of peroxidase (POD), polyphenol oxidase (PPO), β-1,3-glucanase (GLU), and chitinase (CHT) were maintained at levels 48.37%, 37.30%, 13.61%, and 47.77% higher than the control, respectively”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
Claim · model-written summary
10 μM MeJA kept polyphenol oxidase activity 37.30% higher than the control at the end of storage.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of peroxidase (POD), polyphenol oxidase (PPO), β-1,3-glucanase (GLU), and chitinase (CHT) were maintained at levels 48.37%, 37.30%, 13.61%, and 47.77% higher than the control, respectively”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
Claim · model-written summary
10 μM MeJA kept β-1,3-glucanase activity 13.61% higher than the control at the end of storage.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of peroxidase (POD), polyphenol oxidase (PPO), β-1,3-glucanase (GLU), and chitinase (CHT) were maintained at levels 48.37%, 37.30%, 13.61%, and 47.77% higher than the control, respectively”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
Claim · model-written summary
10 μM MeJA kept chitinase activity 47.77% higher than the control at the end of storage.
Verbatim
e0“on mechanically injured banana fruits stored at 25°C for 14 days”
e1“the activities of peroxidase (POD), polyphenol oxidase (PPO), β-1,3-glucanase (GLU), and chitinase (CHT) were maintained at levels 48.37%, 37.30%, 13.61%, and 47.77% higher than the control, respectively”
e2“treatment with 10 μM MeJA effectively enhanced the antioxidant ability”
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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.