Abstract
This study focused on the development of a gaseous ClO2 treatment system that contained dry ice that was used to form carbon dioxide (CO2) and an absorbent pad with sodium chlorite (NaClO2) solution for ClO2 gas generation. Furthermore, the effects of ClO2 gas on the populations of Listeria monocytogenes and the quality properties of table grapes during cold storage were evaluated. The system continuously released the sufficient concentrations of ClO2 gas to treat berries during 30 d of cold storage. After 20 h of ClO2 gas treatment, the populations of Listeria monocytogenes decreased from 5.88 log CFU/g to a non-detectable (ND) level. There were no significant (p > 0.05) changes in the color parameters (L*, a*, and b*) of table grapes treated with ClO2 gas. The firmness, weight, total soluble solids (TSS), and titratable acid (TA) losses of table grapes were significantly (p < 0.05) reduced by ClO2 gas, while Vitamin C was unaffected. Additionally, the residual ClO2 of table grapes were <0.5 mg/kg, which is considered a safe level. Overall, the novel gaseous ClO2 treatment system may be used as an effective intervention technology to improve the safety and quality of table grapes during cold storage.
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Claims 10
Claim · model-written summary
The system released sufficient ClO2 gas for berries over 30 days of cold storage.
Verbatim
e0“The system continuously released the sufficient concentrations of ClO2 gas to treat berries during 30 d of cold storage”
t0“table grapes”
Claim · model-written summary
ClO2 treatment reduced Listeria monocytogenes on grapes from 5.88 log CFU/g to undetectable after 20 hours.
- Taxon
- table grapest0
- Treatment
- ClO2 gas treatmente0
- Interactor
- Listeria monocytogenes
Listeria monocytogenese0pathogen - Outcome
- populations of Listeria monocytogenese0
- Direction
- decreasede0
- Value
- non-detectable (ND) levele0
- Comparator
- 5.88 log CFU/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 20 h of ClO2 gas treatment, the populations of Listeria monocytogenes decreased from 5.88 log CFU/g to a non-detectable (ND) level”
t0“table grapes”
Claim · model-written summary
ClO2 treatment did not significantly change grape color parameters.
- Taxon
- table grapese0
- Treatment
- ClO2 gase0
- Outcome
- color parameters (L*, a*, and b*)e0
- Direction
- no significante0
Not reportedComparator
Verbatim
e0“There were no significant (p > 0.05) changes in the color parameters (L*, a*, and b*) of table grapes treated with ClO2 gas”
Claim · model-written summary
ClO2 gas significantly reduced grape firmness loss.
Not reportedComparator
Verbatim
e0“The firmness, weight, total soluble solids (TSS), and titratable acid (TA) losses of table grapes were significantly (p < 0.05) reduced by ClO2 gas”
Claim · model-written summary
ClO2 gas significantly reduced grape weight loss.
Not reportedComparator
Verbatim
e0“The firmness, weight, total soluble solids (TSS), and titratable acid (TA) losses of table grapes were significantly (p < 0.05) reduced by ClO2 gas”
Claim · model-written summary
ClO2 gas significantly reduced grape soluble solids loss.
Not reportedComparator
Verbatim
e0“The firmness, weight, total soluble solids (TSS), and titratable acid (TA) losses of table grapes were significantly (p < 0.05) reduced by ClO2 gas”
Claim · model-written summary
ClO2 gas significantly reduced grape titratable acid loss.
Not reportedComparator
Verbatim
e0“The firmness, weight, total soluble solids (TSS), and titratable acid (TA) losses of table grapes were significantly (p < 0.05) reduced by ClO2 gas”
Claim · model-written summary
ClO2 gas left grape vitamin C unaffected.
Not reportedComparator
Verbatim
e0“reduced by ClO2 gas, while Vitamin C was unaffected”
t0“table grapes”
Claim · model-written summary
Residual ClO2 on grapes was below 0.5 mg/kg.
Verbatim
e0“the residual ClO2 of table grapes were <0.5 mg/kg”
Claim · model-written summary
Authors propose the gaseous ClO2 system for grape safety and quality during cold storage.
Verbatim
e0“the novel gaseous ClO2 treatment system may be used as an effective intervention technology to improve the safety and quality of table grapes during cold storage”
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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.