Abstract
Kiwifruit, like many other fruits, is susceptible to dehydration, leading to texture changes and a loss of flavour during storage. Exposing kiwifruit to suboptimal temperatures can control these changes but can cause internal browning. Postharvest treatments with substances such as 1-methylcyclopropene (1-MCP) are some of the most successful commercial technologies in the conservation of fruits and vegetables. In recent years, there has been a growing interest among researchers in alternative technologies based in postharvest treatments with plant growth regulators. In this sense, melatonin (MT) has been shown to improve fruit quality, extending shelf life. The aim of this study was to compare these two different technologies applied at postharvest to evaluate the impact on kiwifruit quality. Optimal 1-MCP fumigations and MT solutions were assayed on ‘Hayward’ kiwifruit under similar conditions. Quality parameters were evaluated at 14-day intervals during 84 days of cold storage plus 5 days at 20 °C. The results showed that both treatments were similarly effective in maintaining quality parameters such as weight loss, respiration, firmness, and acidity. Although 1-MCP treatments delayed the evolution of kiwifruit colour and chlorophyll degradation as compared to MT, MT treatments controlled chilling injury better than 1-MCP. This effect was not related to a greater cell membrane integrity since fruit batches treated with 1-MCP were the ones that showed the lowest electrolyte leakage level. In conclusion, both treatments maintained fruit quality and delayed ripening in a similar way. In this sense, the results suggest that MT immersion treatments could act as efficient delaying senescence as fumigations with 1-MCP maintaining kiwifruit quality during refrigerated storage.
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Claims 5
Claim · model-written summary
Both treatments similarly maintained weight loss, respiration, firmness and acidity.
- Taxon
- Kiwifruit
Actinidia deliciosat0 - Treatment
- both treatmentse0
- Outcome
- weight loss, respiration, firmness, and aciditye0
- Direction
- similarly effectivee0
- Comparator
- similarlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both treatments were similarly effective in maintaining quality parameters such as weight loss, respiration, firmness, and acidity”
t0“Kiwifruit”
Claim · model-written summary
1-MCP delayed kiwifruit colour change and chlorophyll degradation compared with MT.
- Taxon
- kiwifruitActinidia deliciosae0
- Treatment
- 1-MCP treatmentse0
- Outcome
- evolution of kiwifruit colour and chlorophyll degradatione0
- Direction
- delayede0
- Comparator
- MTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP treatments delayed the evolution of kiwifruit colour and chlorophyll degradation as compared to MT”
Claim · model-written summary
MT controlled chilling injury better than 1-MCP.
- Taxon
- KiwifruitActinidia deliciosat0
- Treatment
- MT treatmentse0
- Outcome
- chilling injurye0
- Direction
- bettere0
- Comparator
- 1-MCPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MT treatments controlled chilling injury better than 1-MCP”
t0“Kiwifruit”
Claim · model-written summary
1-MCP treated fruit had the lowest electrolyte leakage.
- Taxon
- KiwifruitActinidia deliciosat0
- Treatment
- 1-MCPe0
- Outcome
- electrolyte leakage levele0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit batches treated with 1-MCP were the ones that showed the lowest electrolyte leakage level”
t0“Kiwifruit”
Claim · model-written summary
Both treatments delayed ripening similarly.
- Taxon
- KiwifruitActinidia deliciosat0
- Treatment
- both treatmentse0
- Outcome
- ripeninge0
- Direction
- delayede0
- Comparator
- similar waye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both treatments maintained fruit quality and delayed ripening in a similar way”
t0“Kiwifruit”
The same questions in other papers
1-methylcyclopropene · physiology: pigments · Actinidia deliciosa (kiwifruit)Results agree
2 papers in the same direction as this paper
- positive
- positive
1-methylcyclopropene · physiology: oxidative · Actinidia deliciosa (kiwifruit)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.