Abstract
Summary Cold plasma technology is being increasingly used for food preservation and, incipiently, for minimal processing of fruit. Therefore, the objective of this work was to study the effect of in‐package cold plasma (generated in atmospheric‐pressure air by a low‐frequency −50 Hz‐dielectric barrier discharge operating at 30 kV) on the quality of minimally processed apples during refrigerated storage. Apple slices were subjected to the different treatments following a completely randomised design with a 3 × 3 factorial arrangement. The independent variables were the exposure time (0, 1 and 3 min) and the storage times (1, 4 and 7 days). Cold plasma treatments preserved the quality of the fruit, maintaining the tissue structure. Plasma treatment applied for 1 min rendered apple slices with the highest antioxidant content but only at day 1. Even though polyphenoloxidase activity was reduced by the treatment, it was not sufficient to stabilise the antioxidant content during storage.
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Claims 4
Claim · model-written summary
Cold plasma maintained the tissue structure of apple slices.
- Taxon
- apples
Malus domesticat0 - Organ / stage
- fruite0
- Treatment
- Cold plasma treatmentse0
- Outcome
- tissue structuree0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e0“Cold plasma treatments preserved the quality of the fruit, maintaining the tissue structure.”
Claim · model-written summary
A one-minute plasma treatment produced the highest antioxidant content in apple slices at day 1.
- Taxon
- applesMalus domesticae0
- Organ / stage
- apple slicese0
- Treatment
- Plasma treatment applied for 1 mine0
- Outcome
- antioxidant contente0
- Direction
- higheste0
- Qualifier
- only at day 1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e0“Plasma treatment applied for 1 min rendered apple slices with the highest antioxidant content but only at day 1.”
Claim · model-written summary
Cold plasma reduced polyphenoloxidase activity in apple slices.
- Taxon
- applesMalus domesticat0
- Treatment
- the treatmente0
- Outcome
- polyphenoloxidase activitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e0“Even though polyphenoloxidase activity was reduced by the treatment, it was not sufficient to stabilise the antioxidant content during storage.”
Claim · model-written summary
Cold plasma did not sufficiently stabilize apple antioxidant content during storage.
- Taxon
- applesMalus domesticat0
- Treatment
- the treatmente0
- Outcome
- antioxidant contente0
- Qualifier
- during storagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e0“Even though polyphenoloxidase activity was reduced by the treatment, it was not sufficient to stabilise the antioxidant content during storage.”
The same questions in other papers
physical treatment · molecular: metabolites · Malus domestica (apple)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
5 papers more in this group
See all 9 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.