Abstract
Summary The aim of this work was to evaluate the energy saving benefits that new storage strategies such as ULO storage+1-MCP at higher temperatures and DCA may have when compared to standard ULO. The experiment was carried out in three storage rooms (11 tons each) under ULO conditions (1.0 kPa O 2 + 2.5 kPa CO 2 ) at 1°C or ULO at 5°C plus 1-MCP or DCA controlled by chlorophyll fluorescence (∼0.7 kPa O 2 + 1.5 kPa CO 2 ) at 1°C. The apple cultivars 'Golden Delicious', 'Jonagold' and 'Pinova' were stored for 7 months and the energy consumption for each of the three rooms calculated from the refrigeration compressors, ventilation fans, defrosting and CO 2 scrubber machinery run-times. Energy use was reduced by 20% in DCA and 70% in ULO+1-MCP at 5°C when compared to ULO at 1°C. Apples stored at 5°C showed a lower weight loss when compared to 1°C. Despite a higher storage temperature, 1-MCP treated 'Jonagold' at 5°C were firmer than fruit under either ULO or DCA at 1°C without 1-MCP. The firmness of 'Golden Delicious' and 'Pinova' did not differ between treatments. The incidence of fungal rots was slightly increased under ULO + 1-MCP at 5°C for 'Jonagold', but strongly reduced for 'Pinova'. There were no treatment differences in rot incidence for 'Golden Delicious'. Sensorial analyses conducted after storage plus 7 days shelf-life at 20°C rated the texture of 'Jonagold' higher for ULO at 5°C + 1-MCP than for ULO at 1°C without 1-MCP and accordingly, purchase preferences were higher for 'Jonagold' under ULO at 5°C + 1-MCP. 'Pinova' texture was rated best after DCA at 1°C. There were no differences in the texture preferences between ULO at 5°C + 1-MCP or ULO at 1°C without 1-MCP or any differences in taste preferences between the storage treatments for either 'Jonagold' or 'Pinova'.
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Claims 14
Claim · model-written summary
DCA at 1°C reduced storage energy use by 20% compared with ULO at 1°C.
- Taxon
- apple
Malus domesticat0 - Treatment
- DCAe0
- Outcome
- Energy usee0
- Direction
- reducede0
- Value
- 20%e0
- Comparator
- ULO at 1°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“Energy use was reduced by 20% in DCA and 70% in ULO+1-MCP at 5°C when compared to ULO at 1°C”
Claim · model-written summary
ULO plus 1-MCP at 5°C reduced energy use by 70% compared with ULO at 1°C.
- Taxon
- appleMalus domesticat0
- Treatment
- ULO+1-MCP at 5°Ce0
- Outcome
- Energy usee0
- Direction
- reducede0
- Value
- 70%e0
- Comparator
- ULO at 1°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“Energy use was reduced by 20% in DCA and 70% in ULO+1-MCP at 5°C when compared to ULO at 1°C”
Claim · model-written summary
Apples stored at 5°C lost less weight than at 1°C.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apples stored at 5°C showed a lower weight loss when compared to 1°C”
Claim · model-written summary
1-MCP-treated Jonagold at 5°C was firmer than ULO or DCA fruit at 1°C without 1-MCP.
- Taxon
- appleMalus domesticat0
- Material
- 'Jonagold'e0
- Treatment
- 1-MCP treatede0
- Outcome
- fruite0
- Direction
- firmere0
- Comparator
- either ULO or DCA at 1°C without 1-MCPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“1-MCP treated 'Jonagold' at 5°C were firmer than fruit under either ULO or DCA at 1°C without 1-MCP”
Claim · model-written summary
Golden Delicious firmness did not differ between treatments.
- Taxon
- appleMalus domesticat0
- Material
- 'Golden Delicious'e0
- Treatment
- treatmentse0
- Outcome
- firmnesse0
- Direction
- did not differe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“The firmness of 'Golden Delicious' and 'Pinova' did not differ between treatments”
Claim · model-written summary
Pinova firmness did not differ between treatments.
- Taxon
- appleMalus domesticat0
- Material
- 'Pinova'e0
- Treatment
- treatmentse0
- Outcome
- firmnesse0
- Direction
- did not differe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“The firmness of 'Golden Delicious' and 'Pinova' did not differ between treatments”
Claim · model-written summary
ULO plus 1-MCP at 5°C slightly increased fungal rot incidence in Jonagold.
- Taxon
- appleMalus domesticat0
- Material
- 'Jonagold'e0
- Treatment
- ULO + 1-MCP at 5°Ce0
- Interactor
- fungale0pathogen
- Outcome
- incidence of fungal rotse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“The incidence of fungal rots was slightly increased under ULO + 1-MCP at 5°C for 'Jonagold'”
Claim · model-written summary
ULO plus 1-MCP at 5°C strongly reduced fungal rot incidence in Pinova.
- Taxon
- appleMalus domesticat0
- Material
- 'Pinova'e0
- Treatment
- ULO + 1-MCP at 5°Ce0
- Interactor
- fungale0pathogen
- Outcome
- incidence of fungal rotse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“The incidence of fungal rots was slightly increased under ULO + 1-MCP at 5°C for 'Jonagold', but strongly reduced for 'Pinova'”
Claim · model-written summary
Golden Delicious rot incidence did not differ between treatments.
- Taxon
- appleMalus domesticat0
- Material
- 'Golden Delicious'e0
- Treatment
- treatmente0
- Outcome
- rot incidencee0
- Direction
- no treatment differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“There were no treatment differences in rot incidence for 'Golden Delicious'”
Claim · model-written summary
Jonagold texture was rated higher under ULO at 5°C plus 1-MCP than ULO at 1°C without 1-MCP.
- Taxon
- appleMalus domesticat0
- Material
- 'Jonagold'e0
- Treatment
- ULO at 5°C + 1-MCPe0
- Outcome
- texturee0
- Direction
- highere0
- Comparator
- ULO at 1°C without 1-MCPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“rated the texture of 'Jonagold' higher for ULO at 5°C + 1-MCP than for ULO at 1°C without 1-MCP”
Claim · model-written summary
Purchase preferences for Jonagold were higher under ULO at 5°C plus 1-MCP.
- Taxon
- appleMalus domesticat0
- Material
- 'Jonagold'e0
- Treatment
- ULO at 5°C + 1-MCPe0
- Outcome
- purchase preferencese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“purchase preferences were higher for 'Jonagold' under ULO at 5°C + 1-MCP”
Claim · model-written summary
Pinova texture was rated best after DCA at 1°C.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“'Pinova' texture was rated best after DCA at 1°C”
Claim · model-written summary
Texture preferences between ULO plus 1-MCP at 5°C and ULO at 1°C did not differ for Jonagold or Pinova.
- Taxon
- appleMalus domesticat0
- Treatment
- ULO at 5°C + 1-MCPe0
- Outcome
- texture preferencese0
- Direction
- no differencese0
- Comparator
- ULO at 1°C without 1-MCPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“There were no differences in the texture preferences between ULO at 5°C + 1-MCP or ULO at 1°C without 1-MCP”
Claim · model-written summary
Taste preferences did not differ between storage treatments for Jonagold or Pinova.
- Taxon
- appleMalus domesticat0
- Treatment
- storage treatmentse0
- Outcome
- taste preferencese0
- Direction
- no differencese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple”
e0“any differences in taste preferences between the storage treatments for either 'Jonagold' or 'Pinova'”
e1“There were no differences in the texture preferences between ULO at 5°C + 1-MCP or ULO at 1°C without 1-MCP”
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