Abstract
The effectiveness of chitosan fruit coating to delay the qualitative and nutraceutical traits of three strawberry cultivars, namely "Candonga", "Jonica" and "Sabrina", as well as the effects of chitosan on antioxidant enzymes were evaluated. The fruits were coated with 1% and 2% chitosan solution and stored at 2 °C for nine days. Samples were taken every three days. Physico-chemical (weight loss, soluble solid content and titratable acidity) and nutraceutical (total polyphenol, anthocyanin, flavonoid, ascorbic acid content and antioxidant capacity) properties along with the enzymatic activity (catalase (CAT), ascorbate peroxidase (APX), polyphenol oxidase (PPO), guaiacol peroxidase (GPX) and lipoxygenase (LOX)) were evaluated. Chitosan treatment significantly reduced water loss and delayed the qualitative changes in color, titratable acidity and ascorbic acid content in dose- and cultivar-dependent manners. Additionally, changes in the total polyphenol, anthocyanin and flavonoid contents and the antioxidant capacity of chitosan-coated strawberry fruits were delayed. Chitosan coating enhanced the activity of some antioxidant enzymes, preventing flesh browning and reducing membrane damage. A global view of the responses of the three strawberry cultivars to chitosan coating and storage temperature was obtained using principal component analysis. Chitosan-coated fruit exhibited a slower rate of deterioration, compared to uncoated fruit in all tested cultivars.
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Claims 9
Claim · model-written summary
Chitosan significantly reduced strawberry water loss.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- Chitosan treatmente0
- Outcome
- water losse0
- Direction
- reducede0
- Qualifier
- dose- and cultivar-dependent mannerse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Chitosan treatment significantly reduced water loss and delayed the qualitative changes in color, titratable acidity and ascorbic acid content in dose- and cultivar-dependent manners.”
t0“Strawberry Fruit”
Claim · model-written summary
Chitosan delayed changes in color, titratable acidity and ascorbic acid content in dose- and cultivar-dependent manners.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Chitosan treatmente0
- Outcome
- color, titratable acidity and ascorbic acid contente0
- Direction
- delayede0
- Qualifier
- dose- and cultivar-dependent mannerse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chitosan treatment significantly reduced water loss and delayed the qualitative changes in color, titratable acidity and ascorbic acid content in dose- and cultivar-dependent manners.”
t0“Strawberry Fruit”
Claim · model-written summary
Chitosan delayed changes in total polyphenol, anthocyanin and flavonoid contents.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- chitosane0
- Outcome
- total polyphenol, anthocyanin and flavonoid contentse0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, changes in the total polyphenol, anthocyanin and flavonoid contents and the antioxidant capacity of chitosan-coated strawberry fruits were delayed.”
Claim · model-written summary
Chitosan delayed changes in antioxidant capacity.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- chitosane0
- Outcome
- antioxidant capacitye0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally, changes in the total polyphenol, anthocyanin and flavonoid contents and the antioxidant capacity of chitosan-coated strawberry fruits were delayed.”
Claim · model-written summary
Chitosan enhanced some antioxidant enzyme activity.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Chitosan coatinge0
- Outcome
- activity of some antioxidant enzymese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chitosan coating enhanced the activity of some antioxidant enzymes, preventing flesh browning and reducing membrane damage.”
t0“Strawberry Fruit”
Claim · model-written summary
Chitosan prevented flesh browning.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Chitosan coatinge0
- Outcome
- flesh browninge0
- Direction
- preventinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chitosan coating enhanced the activity of some antioxidant enzymes, preventing flesh browning and reducing membrane damage.”
t0“Strawberry Fruit”
Claim · model-written summary
Chitosan reduced membrane damage.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Chitosan coatinge0
- Outcome
- membrane damagee0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chitosan coating enhanced the activity of some antioxidant enzymes, preventing flesh browning and reducing membrane damage.”
t0“Strawberry Fruit”
Claim · model-written summary
Principal component analysis provided a global view of cultivar responses to coating and storage temperature.
- Taxon
- strawberryFragaria ×ananassae0
- Outcome
- global view of the responsese0
- Value
- threee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A global view of the responses of the three strawberry cultivars to chitosan coating and storage temperature was obtained using principal component analysis.”
Claim · model-written summary
Coated fruit deteriorated more slowly than uncoated fruit across all tested cultivars.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Chitosan-coatede0
- Outcome
- rate of deterioratione0
- Direction
- slowere0
- Comparator
- uncoated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chitosan-coated fruit exhibited a slower rate of deterioration, compared to uncoated fruit in all tested cultivars.”
t0“Strawberry Fruit”
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See all 10 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.