Abstract
Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action which later accompanied by softening process that can influence postharvest quality and storability of the fruit. Ethylene action inhibitors, 1-Methylcyclopropene (1-MCP) has been found to inhibit ethylene action and thus it can delay the fruit ripening process. The effects of 1-MCP on softening related changes were determined through skin color, weight loss, fruit firmness and activities of the cell wall degrading enzymes including alpha-galactosidase, beta-galactosidase and pectinmethylesterase (PME) during ripening. In this study, fruit were treated with 90 ppb concentration of 1-MCP gaseous vapors for 12 hours in airtight container maintained at 20 degreesC. After treatments the fruit were randomly divided into two different storage temperature conditions; ambient temperature (28 degreesC) and low temperature (10 degreesC). Papayas at 10 degreesC conditions were packaged in polyethylene plastic stored for 4 weeks (28 days) and taken out on day 29 and left to ripen at ambient temperature (28 degreesC).Fruit treated with 1-MCP experienced a significant delayed in skin color development, weight loss and reduced firmness loss compared to the fruit without 1-MCP treatment. As softening progressed, activity of the cell wall degrading enzymes in fruit without 1-MCP treatment increased significantly coincident with a rapid declined in fruit firmness for both storage conditions. With 1-MCP, fruit demonstrated a delay in activity of cell wall degrading enzymes but continued to increase until 100 % yellow. Furthermore, the treated 1-MCP papaya fruit stored at 10 degreesC can retain shelf life for 5 days at ambient temperature without any spoilage from chilling injury (CI).Thus it may be concluded that the 1-MCP treatment may aid in delaying the softening process and further storage at low temperature extended the postharvest life and maintained the quality of the papaya fruit.
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Claims 6
Claim · model-written summary
1-MCP significantly delayed skin color development and weight loss of papaya fruit compared with untreated fruit.
- Taxon
- Carica papaya L.
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=60)
Carica papayae0 - Material
- cv.Sekakie0
- Organ / stage
- Fruite1
- Treatment
- 90 ppb concentration of 1-MCP gaseous vaporse2
- Outcome
- skin color development, weight losse1
- Direction
- delayede1
- Comparator
- fruit without 1-MCP treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_DPLA_-_55200ec009622d7d42349f3583df310e.jpg?width=500)
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e1“Fruit treated with 1-MCP experienced a significant delayed in skin color development, weight loss and reduced firmness loss compared to the fruit without 1-MCP treatment”
e2“fruit were treated with 90 ppb concentration of 1-MCP gaseous vapors for 12 hours”
Claim · model-written summary
1-MCP significantly reduced firmness loss of papaya fruit compared with untreated fruit.
- Taxon
- Carica papaya L.Carica papayae0
- Material
- cv.Sekakie0
- Treatment
- 90 ppb concentration of 1-MCP gaseous vaporse2
- Outcome
- firmness losse1
- Direction
- reducede1
- Comparator
- fruit without 1-MCP treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e1“Fruit treated with 1-MCP experienced a significant delayed in skin color development, weight loss and reduced firmness loss compared to the fruit without 1-MCP treatment”
e2“fruit were treated with 90 ppb concentration of 1-MCP gaseous vapors for 12 hours”
Claim · model-written summary
Cell wall degrading enzyme activity increased significantly in untreated papaya fruit during softening.
- Taxon
- Carica papaya L.Carica papayae0
- Material
- cv.Sekakie0
- Outcome
- activity of the cell wall degrading enzymese3
- Direction
- increased significantlye3
- Qualifier
- without 1-MCP treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e3“activity of the cell wall degrading enzymes in fruit without 1-MCP treatment increased significantly coincident with a rapid declined in fruit firmness for both storage conditions”
Claim · model-written summary
Firmness of untreated papaya fruit declined rapidly, coincident with rising enzyme activity, in both storage conditions.
- Taxon
- Carica papaya L.Carica papayae0
- Material
- cv.Sekakie0
- Outcome
- fruit firmnesse3
- Direction
- rapid declinede3
- Qualifier
- for both storage conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e3“activity of the cell wall degrading enzymes in fruit without 1-MCP treatment increased significantly coincident with a rapid declined in fruit firmness for both storage conditions”
Claim · model-written summary
1-MCP delayed the activity of cell wall degrading enzymes in papaya fruit, which still increased until 100% yellow.
- Taxon
- Carica papaya L.Carica papayae0
- Material
- cv.Sekakie0
- Treatment
- 1-MCPe4
- Outcome
- activity of cell wall degrading enzymese4
- Direction
- delaye4
- Qualifier
- continued to increase until 100 % yellowe4
- Comparator
- without 1-MCP treatmente3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e3“activity of the cell wall degrading enzymes in fruit without 1-MCP treatment increased significantly coincident with a rapid declined in fruit firmness for both storage conditions”
e4“With 1-MCP, fruit demonstrated a delay in activity of cell wall degrading enzymes but continued to increase until 100 % yellow”
Claim · model-written summary
Treated papaya fruit stored at 10 degreesC retained shelf life for 5 days at ambient temperature without chilling injury spoilage.
- Taxon
- Carica papaya L.Carica papayae0
- Material
- cv.Sekakie0
- Outcome
- shelf lifee5
- Value
- 5 dayse5
- Qualifier
- without any spoilage from chilling injury (CI)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ripening of climacteric fruit such as papaya (Carica papaya L. cv.Sekaki) fruit depends on the ethylene action”
e5“the treated 1-MCP papaya fruit stored at 10 degreesC can retain shelf life for 5 days at ambient temperature without any spoilage from chilling injury (CI)”
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 · physiology: enzyme activity · Carica papaya (papaya)Results agree
1 paper in the same direction as this paper
- 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.