Abstract
To improve fruit chilling tolerance during postharvest storage, banana fruit at two ripening stages (green and yellow) were pretreated with 2% (wt/vol) CaCl2 (Ca2+) or 1% (wt/vol) sodium isoascorbate (SI) under vacuum infiltration, or fumigated with 1.0 μL/L 1-methylcyclopropene (1-MCP), then stored at 6 °C. Application of Ca2+ or SI significantly reduced chilling injury index, electrolyte leakage, malondialdehyde content, and polyphenol oxidase activity of banana peel during storage at 6 °C. And Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages. Application of 1-MCP resulted in positive effects only on the visual quality of yellow ripening banana. Our results indicated that Ca2+ or SI could ameliorate chilling injury of both mature green and yellow ripening banana fruit stored at 6 °C; 1-MCP could enhance chilling tolerance of yellow ripening banana. Practical applications Refrigeration is a usual method for extending storage life of banana fruit. Like other tropical and subtropical fruits, banana is highly susceptible to chilling injury (CI) and develops CI symptoms of rapid peel browning, pulp rigidity, and pitting when stored at low temperature. Our results indicate that 2% (wt/vol) calcium chloride or 1% (wt/vol) sodium isoascorbate are effective methods in alleviating CI of the banana at two ripening stages. A total of 1.0 μL/L 1-methylcyclopropene significantly reduced CI of yellow ripening banana, while exacerbation of CI was observed in green maturity banana during the storage. This research not only provides environmentally friendly chemicals for postharvest application but also investigates the effects of chemical treatments on CI both of mature green banana and yellow ripening banana.
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Claims 13
Claim · model-written summary
Ca2+ significantly reduced chilling injury index, electrolyte leakage and malondialdehyde content of banana peel during storage at 6 C.
- Taxon
- bananae0
- Organ / stage
- banana peele0
- Treatment
- Ca2+e0
- Outcome
- chilling injury index, electrolyte leakage, malondialdehyde contente0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Application of Ca2+ or SI significantly reduced chilling injury index, electrolyte leakage, malondialdehyde content, and polyphenol oxidase activity of banana peel”
Claim · model-written summary
Ca2+ significantly reduced polyphenol oxidase activity of banana peel during storage at 6 C.
- Taxon
- bananae0
- Organ / stage
- banana peele0
- Treatment
- Ca2+e0
- Outcome
- polyphenol oxidase activitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Application of Ca2+ or SI significantly reduced chilling injury index, electrolyte leakage, malondialdehyde content, and polyphenol oxidase activity of banana peel”
Claim · model-written summary
Ca2+ sustained firmness and peel lightness of banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- Ca2+e0
- Outcome
- firmness, peel lightnesse0
- Direction
- sustainede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
Ca2+ promoted peroxidase, superoxide dismutase and catalase activities in banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- Ca2+e0
- Outcome
- activities of peroxidase, superoxide dismutase, catalasee0
- Direction
- promotede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
Ca2+ promoted ascorbate peroxidase activity in banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- Ca2+e0
- Outcome
- ascorbate peroxidasee0
- Direction
- promotede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
sodium isoascorbate significantly reduced chilling injury index, electrolyte leakage and malondialdehyde content of banana peel during storage at 6 C.
- Taxon
- bananae0
- Organ / stage
- banana peele0
- Treatment
- SIe0
- Outcome
- chilling injury index, electrolyte leakage, malondialdehyde contente0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Application of Ca2+ or SI significantly reduced chilling injury index, electrolyte leakage, malondialdehyde content, and polyphenol oxidase activity of banana peel”
Claim · model-written summary
sodium isoascorbate significantly reduced polyphenol oxidase activity of banana peel during storage at 6 C.
- Taxon
- bananae0
- Organ / stage
- banana peele0
- Treatment
- SIe0
- Outcome
- polyphenol oxidase activitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Application of Ca2+ or SI significantly reduced chilling injury index, electrolyte leakage, malondialdehyde content, and polyphenol oxidase activity of banana peel”
Claim · model-written summary
sodium isoascorbate sustained firmness and peel lightness of banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- SIe0
- Outcome
- firmness, peel lightnesse0
- Direction
- sustainede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
sodium isoascorbate promoted peroxidase, superoxide dismutase and catalase activities in banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- SIe0
- Outcome
- activities of peroxidase, superoxide dismutase, catalasee0
- Direction
- promotede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
sodium isoascorbate promoted ascorbate peroxidase activity in banana at two ripening stages.
- Taxon
- bananae0
- Treatment
- SIe0
- Outcome
- ascorbate peroxidasee0
- Direction
- promotede0
- Qualifier
- two ripening stagese0
Not reportedComparator
Verbatim
e0“Ca2+ or SI also sustained levels of firmness, peel lightness, and promoted activities of peroxidase, superoxide dismutase, catalase, and ascorbate peroxidase in banana at two ripening stages”
Claim · model-written summary
1-MCP had positive effects only on the visual quality of yellow ripening banana.
- Taxon
- bananae0
- Treatment
- 1-MCPe0
- Outcome
- visual qualitye0
- Direction
- positive effectse0
- Qualifier
- yellow ripening bananae0
Not reportedComparator
Verbatim
e0“Application of 1-MCP resulted in positive effects only on the visual quality of yellow ripening banana”
Claim · model-written summary
1-methylcyclopropene significantly reduced chilling injury of yellow ripening banana.
- Taxon
- bananae0
- Treatment
- 1-methylcyclopropenee0
- Outcome
- CIe0
- Direction
- reducede0
- Qualifier
- yellow ripening bananae0
Not reportedComparator
Verbatim
e0“1-methylcyclopropene significantly reduced CI of yellow ripening banana, while exacerbation of CI was observed in green maturity banana during the storage”
Claim · model-written summary
1-methylcyclopropene exacerbated chilling injury of green-maturity banana during storage.
- Taxon
- bananae0
- Treatment
- 1-methylcyclopropenee0
- Outcome
- CIe0
- Direction
- exacerbatione0
- Qualifier
- green maturity bananae0
Not reportedComparator
Verbatim
e0“1-methylcyclopropene significantly reduced CI of yellow ripening banana, while exacerbation of CI was observed in green maturity banana during the storage”
The same questions in other papers
1-methylcyclopropene · quality: general · MusaPositive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →calcium(2+) · quality: postharvest · MusaResults agree
1 paper in the same direction as this paper
- positive
sodium atom · quality: postharvest · MusaResults agree
1 paper in the same direction as this paper
- positive
1-methylcyclopropene · crop injury · MusaResults agree
2 papers in the same direction as this paper
- 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.