Abstract
Gala apples exposed to the ethylene action inhibitor 1-methylcyclopropene (1-MCP) for 12 h at 20 degrees C were stored at 1 degrees C in air or a controlled atmosphere (CA) maintained at 1 kPa O2 and 2 kPa CO2. Volatile compounds were measured after 4, 12, 20, and 28 weeks plus 1 or 7 days at 20 degrees C. Treatment with 1-MCP and then storage in air or CA or storage in CA without 1-MCP treatment reduced volatile production as compared to apples not treated with 1-MCP stored in air. The reduced production of esters, alcohols, aldehydes, acetic acid, and 1-methoxy-4-(2-propenyl)benzene was observed. Ester production by fruit stored in CA decreased throughout the storage period regardless of previous 1-MCP treatment. The production of esters, alcohols, aldehydes, acetic acid, and 1-methoxy-4-(2-propenyl)benzene by 1-MCP-treated fruit stored in air plus 7 days at 20 degrees C increased after 20 or 28 weeks of storage. Continuous exposure to 417 micromol m(-3) ethylene for 7 days at 20 degrees C after 12 or 28 weeks of storage stimulated production of many volatile compounds, primarily esters and alcohols, by fruit stored in CA or 1-MCP-treated apples stored in air. However, exposure to ethylene had no effect on the production of aldehydes or acetic acid.
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Claims 7
Claim · model-written summary
1-MCP followed by air storage reduced Gala apple volatile production versus untreated air storage.
- Taxon
- apples
Malus domesticae0 - Treatment
- Treatment with 1-MCP and then storage in aire0
- Outcome
- volatile productione0
- Direction
- reducede0
- Comparator
- apples not treated with 1-MCP stored in aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 1-MCP and then storage in air or CA or storage in CA without 1-MCP treatment reduced volatile production as compared to apples not treated with 1-MCP stored in air”
Claim · model-written summary
1-MCP followed by CA storage reduced Gala apple volatile production versus untreated air storage.
- Taxon
- applesMalus domesticae0
- Treatment
- 1-MCP and then storage in air or CAe0
- Outcome
- volatile productione0
- Direction
- reducede0
- Comparator
- apples not treated with 1-MCP stored in aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 1-MCP and then storage in air or CA or storage in CA without 1-MCP treatment reduced volatile production as compared to apples not treated with 1-MCP stored in air”
Claim · model-written summary
CA storage without 1-MCP reduced Gala apple volatile production versus untreated air storage.
- Taxon
- applesMalus domesticae0
- Treatment
- storage in CA without 1-MCP treatmente0
- Outcome
- volatile productione0
- Direction
- reducede0
- Comparator
- apples not treated with 1-MCP stored in aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“storage in CA without 1-MCP treatment reduced volatile production as compared to apples not treated with 1-MCP stored in air”
Claim · model-written summary
Apple ester production decreased during CA storage regardless of prior 1-MCP treatment.
Verbatim
e0“Ester production by fruit stored in CA decreased throughout the storage period regardless of previous 1-MCP treatment”
Claim · model-written summary
Volatile production by 1-MCP-treated apples in air increased after 20 or 28 weeks plus seven days at 20 degrees C.
Verbatim
e0“The production of esters, alcohols, aldehydes, acetic acid, and 1-methoxy-4-(2-propenyl)benzene by 1-MCP-treated fruit stored in air plus 7 days at 20 degrees C increased after 20 or 28 weeks of storage”
Claim · model-written summary
Ethylene exposure stimulated primarily ester and alcohol production after storage.
- Taxon
- applesMalus domesticae0
- Treatment
- Continuous exposure to 417 micromol m(-3) ethylene for 7 days at 20 degrees Ce0
- Outcome
- production of many volatile compounds, primarily esters and alcoholse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous exposure to 417 micromol m(-3) ethylene for 7 days at 20 degrees C after 12 or 28 weeks of storage stimulated production of many volatile compounds, primarily esters and alcohols, by fruit stored in CA or 1-MCP-treated apples stored in air”
Claim · model-written summary
Ethylene exposure did not affect apple aldehyde or acetic acid production.
- Taxon
- appleMalus domesticat0
- Treatment
- exposure to ethylenee0
- Outcome
- production of aldehydes or acetic acide0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, exposure to ethylene had no effect on the production of aldehydes or acetic acid”
t0“Gala Apple”
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See all 14 papers →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.