Abstract
'감홍' 사과의 수확후 1-MCP 처리, CA 저장 및 유통온도가 모의 수출과정 중 품질유지에 미치는 효과를 분석하였다. 사과는 장기저장에 적합한 성숙도에서 수확하여 $1{\mu}L{\cdot}L^{-1}$ 농도의 1-MCP 처리 후 $0^{\circ}C$ 저온(air)과 $O_2$ 1.5kPa + $CO_2$ 2.5kPa CA 환경에서 각각 6개월간 저장하였다. 저장 후 모의 수출과정은 $0^{\circ}C$에서 2주간의 해상 운송 모의 과정을 거쳤으며 현지 유통과정은 저온($7^{\circ}C$) 과 상온($18-22^{\circ}C$)에서 7일로 설정하였다. $20^{\circ}C$ 온도 평형 후 측정한 저장 직후 및 모의 운송 후 호흡속도와 에틸렌 발생률은 1-MCP 처리와 CA 저장 사과에서 유의적으로 낮았고 호흡속도의 경우 CA 저장의 효과가 보다 뚜렷하였다. 모의 수출과정 후 당도는 1-MCP 처리에서 산함량은 1-MCP 및 CA 저장 사과에서 뚜렷하게 높았다. 1-MCP 처리와 CA 저장은 모든 시점에서 과육 경도 및 조직감 유지에 뚜렷한 효과를 보였으며, 조사 시점에 따라 상가효과가 있는 것으로 분석되었다. 현지에서의 저온유통은 과육 경도 유지에 효과적이었던 반면, 당도나 산함량에는 유의적인 영향을 미치지 않았다. 본 실험결과를 종합해보면, 수출을 목적으로 하는 '감홍' 사과의 저장 한계기간은 무처리 사과의 저온저장 시 4개월 이내, 1-MCP 처리 후 CA 저장 시에는 6개월 이상까지 가능한 것으로 나타나, 국내 저장기간과 현지 유통기간에 따라 차별화된 수확후관리기술 프로그램이 적용되어야 할 것으로 판단되었다. Effects of postharvest 1-methylcyclopropene (1-MCP) treatment, controlled atmosphere (CA) storage, and shelf temperature on quality of 'Gamhong' apples were analyzed during export simulation. Fruits were harvested at the optimum maturity for long-term storage, treated with $1{\mu}L{\cdot}L^{-1}$ 1-MCP for 16 hours, and then stored for 6 months under air and CA conditions at $0^{\circ}C$. Poststorage export procedure was performed by applying additional 2-week refrigerated storage and 7-day shelf-life test at 7 and $20^{\circ}C$, which simulated container shipment and local distribution, respectively. After storage and during export simulation, rates of respiration and ethylene evolution were significantly lower in 1-MCP treated and CA-stored apples. For the reduction of respiration, CA storage was more effective than 1-MCP treatment. Soluble solids content was maintained higher in 1-MCP treated apples, while titratable acidity was maintained better both in the 1-MCP treated and CA-stored apples. Effects of 1-MCP treatment and CA storage were highly significant in maintaining flesh firmness and sensory texture ratings. Additive effects from combined application of 1-MCP treatment and CA storage were occasionally observed. Shelf temperature during the local distribution simulation seemed not to significantly influence quality changes only showing limited effects on flesh firmness. Overall results suggest that storage potential of 'Gamhong' apples is shorter than 4 months in control fruit under refrigerated air conditions, whereas the potential can be extended to longer than 6 months by 1-MCP treatment and CA storage. Postharvest program should be provided considering the time of export, i.e. period of storage, and duration of local distribution.
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Claims 14
Claim · model-written summary
1-MCP lowered apple respiration and ethylene evolution during export simulation.
- Taxon
- apples
Malus domesticae0 - Treatment
- 1-MCPe0
- Outcome
- rates of respiration and ethylene evolutione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rates of respiration and ethylene evolution were significantly lower in 1-MCP treated and CA-stored apples”
Claim · model-written summary
CA storage lowered apple respiration and ethylene evolution.
- Taxon
- applesMalus domesticae0
- Treatment
- CA-storede0
- Outcome
- rates of respiration and ethylene evolutione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rates of respiration and ethylene evolution were significantly lower in 1-MCP treated and CA-stored apples”
Claim · model-written summary
CA storage reduced respiration more than 1-MCP treatment.
- Taxon
- applesMalus domesticat0
- Treatment
- CA storagee0
- Outcome
- respiratione0
- Direction
- reductione0
- Comparator
- 1-MCP treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the reduction of respiration, CA storage was more effective than 1-MCP treatment”
t0“Apples”
Claim · model-written summary
1-MCP maintained higher soluble solids content.
- Taxon
- applesMalus domesticae0
- Treatment
- 1-MCPe0
- Outcome
- Soluble solids contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soluble solids content was maintained higher in 1-MCP treated apples”
Claim · model-written summary
1-MCP better maintained titratable acidity.
- Taxon
- applesMalus domesticae0
- Treatment
- 1-MCPe0
- Outcome
- titratable aciditye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“titratable acidity was maintained better both in the 1-MCP treated and CA-stored apples”
Claim · model-written summary
CA storage better maintained titratable acidity.
- Taxon
- applesMalus domesticae0
- Treatment
- CA-storede0
- Outcome
- titratable aciditye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“titratable acidity was maintained better both in the 1-MCP treated and CA-stored apples”
Claim · model-written summary
1-MCP significantly maintained flesh firmness and sensory texture.
- Taxon
- ApplesMalus domesticat0
- Treatment
- 1-MCP treatmente0
- Outcome
- flesh firmness and sensory texture ratingse0
- Direction
- maintaininge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of 1-MCP treatment and CA storage were highly significant in maintaining flesh firmness and sensory texture ratings”
t0“Apples”
Claim · model-written summary
CA storage significantly maintained flesh firmness and sensory texture.
- Taxon
- ApplesMalus domesticat0
- Treatment
- CA storagee0
- Outcome
- flesh firmness and sensory texture ratingse0
- Direction
- maintaininge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects of 1-MCP treatment and CA storage were highly significant in maintaining flesh firmness and sensory texture ratings”
t0“Apples”
Claim · model-written summary
Combined 1-MCP and CA storage occasionally had additive effects.
- Taxon
- ApplesMalus domesticat0
- Treatment
- combined application of 1-MCP treatment and CA storagee0
- Outcome
- Additive effectse0
- Qualifier
- occasionallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additive effects from combined application of 1-MCP treatment and CA storage were occasionally observed”
t0“Apples”
Claim · model-written summary
Shelf temperature had no significant overall influence on quality changes.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Shelf temperaturee0
- Outcome
- quality changese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shelf temperature during the local distribution simulation seemed not to significantly influence quality changes”
t0“Apples”
Claim · model-written summary
Shelf temperature had limited effects on flesh firmness.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Shelf temperaturee0
- Outcome
- flesh firmnesse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shelf temperature during the local distribution simulation seemed not to significantly influence quality changes only showing limited effects on flesh firmness”
t0“Apples”
Claim · model-written summary
Control Gamhong apples had a storage potential shorter than 4 months under refrigerated air.
- Taxon
- applesMalus domesticae0
- Material
- 'Gamhong'e0
- Outcome
- storage potentiale0
- Direction
- shortere0
- Value
- 4 monthse0
- Qualifier
- under refrigerated air conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“storage potential of 'Gamhong' apples is shorter than 4 months in control fruit under refrigerated air conditions”
Claim · model-written summary
1-MCP and CA storage extended Gamhong apple storage potential beyond 6 months.
- Taxon
- ApplesMalus domesticat0
- Treatment
- 1-MCP treatment and CA storagee0
- Outcome
- potentiale0
- Direction
- extendede0
- Value
- 6 monthse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential can be extended to longer than 6 months by 1-MCP treatment and CA storage”
t0“Apples”
Claim · model-written summary
The authors recommend tailoring postharvest programs to export time and local distribution duration.
- Taxon
- ApplesMalus domesticat0
- Outcome
- Postharvest program should be provided considering the time of export, i.e. period of storage, and duration of local distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postharvest program should be provided considering the time of export, i.e. period of storage, and duration of local distribution”
t0“Apples”
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