Abstract
The purpose of the present study was to investigate the role of ethylene action, via use of the ethylene antagonist 1-methylcyclopropene (1-MCP), on the senescence and quality of fresh-cut ripe papaya ( Carica papaya L. `Sunrise Solo') fruit. Ripe papaya fruit were treated with 2.5 μL·L -1 1-MCP and immediately processed into fresh-cut slices or left intact. At 2-day intervals over 10 days at 5 °C, continuously stored slices were monitored for ethylene production, firmness, electrolyte leakage, color, sensory changes, and pathogen incidence. Slices freshly prepared from intact fruit stored under identical conditions were measured similarly. Ethylene production did not differ significantly between the treatments, although production rates were slightly but consistently higher in slices from intact control compared with intact 1-MCP-treated fruit. Mesocarp firmness of continuously stored slices and slices from fruit stored intact was significantly retained by 1-MCP. Firmness of continuously stored slices from 1-MCP-treated fruit declined 50% compared with 75% for control slices. Firmness of fresh-cut slices prepared from intact control and 1-MCP-treated fruit at each sampling interval declined 26% and 15%, respectively. Electrolyte leakage remained low and changed little in slices freshly prepared from fruit stored intact. Leakage from continuously stored papaya slices increased after 4 days, and after 6 days controls increased significantly compared with stored slices derived from papaya fruit initially treated with the ethylene antagonist. The flesh color of continuously stored slices or slices prepared from fruit stored intact was influenced by 1-MCP only during the later periods of storage. Microbial counts in stored slices or slices prepared at each sampling were generally unaffected by 1-MCP. Informal sensory analysis indicated that the edible shelf life was 6 days in stored slices from 1-MCP-treated fruit compared with 2 to 3 days for stored slices from control fruit.
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Claims 11
Claim · model-written summary
Ethylene production did not differ significantly between treatments.
- Taxon
- papaya
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=60)
Carica papayat0 - Outcome
- Ethylene productione0
- Direction
- did not differe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=500)
Verbatim
e0“Ethylene production did not differ significantly between the treatments”
t0“Papaya”
Claim · model-written summary
1-MCP significantly retained firmness in continuously stored slices and slices from intact stored fruit.
- Taxon
- papayaCarica papayat0
- Treatment
- 1-MCPe0
- Outcome
- Mesocarp firmnesse0
- Direction
- retainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mesocarp firmness of continuously stored slices and slices from fruit stored intact was significantly retained by 1-MCP.”
t0“Papaya”
Claim · model-written summary
Firmness declined 50% in continuously stored slices from treated fruit.
- Taxon
- papayaCarica papayat0
- Treatment
- 1-MCP-treated fruite0
- Outcome
- Firmnesse0
- Direction
- declinede0
- Value
- 50%e0
- Qualifier
- 75%e0
- Comparator
- control slicese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness of continuously stored slices from 1-MCP-treated fruit declined 50% compared with 75% for control slices.”
t0“Papaya”
Claim · model-written summary
Firmness declined 26% in fresh-cut slices from intact control fruit.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness of fresh-cut slices prepared from intact control and 1-MCP-treated fruit at each sampling interval declined 26% and 15%, respectively.”
t0“Papaya”
Claim · model-written summary
Firmness declined 15% in slices from intact 1-MCP-treated fruit.
- Taxon
- papayaCarica papayat0
- Treatment
- 1-MCP-treated fruite0
- Outcome
- Firmnesse0
- Direction
- declinede0
- Value
- 15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness of fresh-cut slices prepared from intact control and 1-MCP-treated fruit at each sampling interval declined 26% and 15%, respectively.”
t0“Papaya”
Claim · model-written summary
Electrolyte leakage stayed low in slices freshly prepared from intact stored fruit.
- Taxon
- papayaCarica papayat0
- Outcome
- Electrolyte leakagee0
- Direction
- remained lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electrolyte leakage remained low and changed little in slices freshly prepared from fruit stored intact.”
t0“Papaya”
Claim · model-written summary
Leakage in continuously stored slices increased after four days.
- Taxon
- papayaCarica papayae0
- Outcome
- Leakagee0
- Direction
- increasede0
- Qualifier
- after 4 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leakage from continuously stored papaya slices increased after 4 days”
Claim · model-written summary
After six days, leakage in control slices exceeded that in slices from treated fruit.
- Taxon
- papayaCarica papayae0
- Outcome
- controlse0
- Direction
- increasede0
- Comparator
- stored slices derived from papaya fruit initially treated with the ethylene antagoniste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after 6 days controls increased significantly compared with stored slices derived from papaya fruit initially treated with the ethylene antagonist.”
Claim · model-written summary
1-MCP affected flesh color only late in storage.
- Taxon
- papayaCarica papayat0
- Treatment
- 1-MCPe0
- Outcome
- flesh colore0
- Qualifier
- later periods of storagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The flesh color of continuously stored slices or slices prepared from fruit stored intact was influenced by 1-MCP only during the later periods of storage.”
t0“Papaya”
Claim · model-written summary
1-MCP generally did not affect microbial counts.
- Taxon
- papayaCarica papayat0
- Treatment
- 1-MCPe0
- Outcome
- Microbial countse0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Microbial counts in stored slices or slices prepared at each sampling were generally unaffected by 1-MCP.”
t0“Papaya”
Claim · model-written summary
Edible shelf life was six days for stored slices from treated fruit versus two to three days for controls.
- Taxon
- papayaCarica papayat0
- Outcome
- edible shelf lifee0
- Value
- 6 dayse0
- Qualifier
- 2 to 3 dayse0
- Comparator
- stored slices from control fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“edible shelf life was 6 days in stored slices from 1-MCP-treated fruit compared with 2 to 3 days for stored slices from control fruit.”
t0“Papaya”
The same questions in other papers
1-methylcyclopropene · quality: postharvest · Carica papaya (papaya)Results differ
23 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
24 papers more in this group
See all 28 papers →1-methylcyclopropene · soil: biology · Carica papaya (papaya)Positive and negative results
2 in the opposite direction
- 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.