Abstract
Fresh-cut apples were treated with an antibrowning solution and with a chitosan-based edible coating associated to antibrowning agents and the effects on the deterioration at low temperature were studied. The combined effect of ascorbic acid (AA), citric acid (CA) and chitosan was also evaluated. Control, coated and uncoated apples were packed in polyethylene terephthalate trays and the changes in headspace atmosphere, colour, firmness and microbial growth measured along ten days of storage at 5°C. The samples coated with 1% AA + 2% CA + chitosan maintained a good colouration until day 6, similar to those treated with 1% AA + 2% CA without chitosan. Afterwards, the fruits became darker and similar to the control. A slight reduction in the rates of CO2 production was observed in all samples. Ethylene increased continuously during storage although gas production was extremely low. Texture did not change for all treatments; showing values around 9.0 to 10.0 N. Growth of Salmonella, and total and fecal coliforms were not detected. The chitosan coating treatment was the most effective in inhibiting growth of moulds and yeasts, with count of 1.7 CFU g–1. Chitosan coating could be an alternative for preserving quality of fresh-cut ‘Gala’ apples. Results from this study suggest that.
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Claims 8
Claim · model-written summary
Fresh-cut apples coated with 1% AA + 2% CA + chitosan kept a good colour until day 6, similar to uncoated 1% AA + 2% CA.
- Taxon
- apples
Malus domesticae0 - Treatment
- 1% AA + 2% CA + chitosane1
- Outcome
- colouratione1
- Direction
- maintainede1
- Qualifier
- until day 6e1
- Comparator
- 1% AA + 2% CA without chitosane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e1“The samples coated with 1% AA + 2% CA + chitosan maintained a good colouration until day 6, similar to those treated with 1% AA + 2% CA without chitosan”
Claim · model-written summary
After day 6 the fresh-cut apples became darker, similar to the control.
- Taxon
- applesMalus domesticae0
- Outcome
- became darkere2
- Direction
- darkere2
- Qualifier
- Afterwardse2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e2“Afterwards, the fruits became darker and similar to the control”
Claim · model-written summary
A slight reduction in the rates of CO2 production was observed in all fresh-cut apple samples.
- Taxon
- applesMalus domesticae0
- Outcome
- rates of CO2 productione3
- Direction
- reductione3
- Qualifier
- slighte3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e3“A slight reduction in the rates of CO2 production was observed in all samples”
Claim · model-written summary
Ethylene increased continuously during storage of fresh-cut apples, although gas production was extremely low.
- Taxon
- applesMalus domesticae0
- Outcome
- Ethylenee4
- Direction
- increasede4
- Qualifier
- continuously during storagee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e4“Ethylene increased continuously during storage although gas production was extremely low”
Claim · model-written summary
Texture did not change for all treatments, at values around 9.0 to 10.0 N.
- Taxon
- applesMalus domesticae0
- Treatment
- all treatmentse5
- Outcome
- Texturee5
- Direction
- did not changee5
- Value
- 9.0 to 10.0 Ne5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e5“Texture did not change for all treatments; showing values around 9.0 to 10.0 N”
Claim · model-written summary
Salmonella and total and fecal coliforms were not detected in the fresh-cut apples.
- Taxon
- applesMalus domesticae0
- Outcome
- Growth of Salmonella, and total and fecal coliformse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e6“Growth of Salmonella, and total and fecal coliforms were not detected”
Claim · model-written summary
Chitosan coating was the most effective treatment in inhibiting growth of moulds and yeasts, at 1.7 CFU g–1.
- Taxon
- applesMalus domesticae0
- Treatment
- chitosan coatinge7
- Outcome
- growth of moulds and yeastse7
- Direction
- most effective in inhibitinge7
- Value
- 1.7 CFU g–1e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh-cut apples were treated with an antibrowning solution”
e7“The chitosan coating treatment was the most effective in inhibiting growth of moulds and yeasts, with count of 1.7 CFU g–1”
Claim · model-written summary
The authors recommend chitosan coating as an alternative for preserving quality of fresh-cut apples.
- Taxon
- applesMalus domesticae1
- Treatment
- Chitosan coatinge1
- Outcome
- preserving qualitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Chitosan coating could be an alternative for preserving quality of fresh-cut ‘Gala’ apples”
The same questions in other papers
chitosan · growth · Malus domestica (apple)Results differ
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →storage · growth · Malus domestica (apple)Positive and negative results
16 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
14 papers more in this group
See all 18 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.