Abstract
The purpose of this study was to develop a technique for designing modified atmosphere packaging (MAP) for suppressing chilling injury (CI) in cucumber fruit using a mathematical model. The respiratory quotient (RQ) changes from 0.2% to 4% of O2 at 5°C was measured to determine the critical low O2 limit and was found to be 0.5%. Next, respiration rates of cucumber fruit stored at 5°C under various O2 concentrations were measured and modelled with the Michaelis-Menten equation as a function of O2 concentration. The model provided a good prediction of the respiration rate of cucumber fruit at any O2 concentration. A mathematical model incorporating the respiration rate and gas mass transfer through film packaging was developed to estimate the optimal O2 permeance, leading to equilibration of O2 concentration in the package at the established critical low O2 limit. To verify the effect of CO2 accumulation inside the package on CI suppression, the malondialdehyde (MDA) of the fruit packed in a low-density polyethylene (LDPE) bag with and without a CO2 absorber was evaluated. The results suggested that reducing CO2 in the package is effective for suppressing CI. Further study such as optimal design for the active MAP with a CO2 absorbent is needed to realize the maximum performance of MAP in alleviating CI in cucumber fruit.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
The critical low O2 limit for cucumber fruit at 5°C was 0.5%.
- Taxon
- cucumber fruit
Cucumis sativuse2 - Treatment
- 0.2% to 4% of O2e1
- Outcome
- critical low O2 limite1
- Value
- 0.5%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The respiratory quotient (RQ) changes from 0.2% to 4% of O2 at 5°C was measured to determine the critical low O2 limit and was found to be 0.5%”
e2“suppressing chilling injury (CI) in cucumber fruit”
Claim · model-written summary
A model of cucumber fruit respiration rate gave a good prediction at any O2 concentration.
- Taxon
- cucumber fruitCucumis sativuse1
- Outcome
- prediction of the respiration ratee1
- Qualifier
- good predictione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Schema note from the model: model fit reported without comparator or value; kind observation used
Verbatim
e1“The model provided a good prediction of the respiration rate of cucumber fruit at any O2 concentration”
Claim · model-written summary
Reducing CO2 in the package was suggested to be effective for suppressing chilling injury in cucumber fruit.
- Taxon
- cucumber fruitCucumis sativuse2
- Treatment
- reducing CO2 in the packagee1
- Outcome
- suppressing CIe1
- Direction
- effectivee1
- Comparator
- without a CO2 absorbere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results suggested that reducing CO2 in the package is effective for suppressing CI”
e2“suppressing chilling injury (CI) in cucumber fruit”
e3“the malondialdehyde (MDA) of the fruit packed in a low-density polyethylene (LDPE) bag with and without a CO2 absorber was evaluated”
The same questions in other papers
storage · crop injury · Cucumis sativus (cucumber)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →co2 · crop injury · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- 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.