Abstract
Abstract BACKGROUND: Although changes in the quality of fresh‐cut products treated with chemical stabilisers have been extensively described in the literature, very little is known about the physiology of these products. This work aims to describe the physiological aspect and particularly the effects of chemical preservatives on the oxidative behaviour of fresh‐cut apples. RESULTS: Immediately after treatment, the samples treated with the anti‐browning agents (ascorbic acid + cysteine) exhibited a sharp increase in H 2 O 2 levels (a five‐fold increase when compared to the other samples) and peroxidative damage, especially at the beginning of the storage period (two‐fold increase after 1 day). In line with this result, peroxidase (POX) activity decreased by 50% during the first day of storage, but no significant changes in superoxide dismutase (SOD) and catalase (CAT) activities were found between the different samples. H 2 O 2 accumulation was not attributed to the action of cysteine but to a specific action of ascorbic acid, which mainly acted as a pro‐oxidant under these conditions. CONCLUSION: The results presented in this work showed that ascorbic acid cause important oxidative damage in fresh‐cut Fuji apples. Alternatives are required to prevent detrimental loss of quality resulting from this oxidative action. Copyright © 2008 Society of Chemical Industry
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 7
Claim · model-written summary
Ascorbic acid plus cysteine caused a five-fold immediate increase in H 2 O 2 relative to other samples.
- Taxon
- apples
Malus domesticat0 - Treatment
- ascorbic acid + cysteinee0
- Outcome
- H 2 O 2 levelse0
- Direction
- increasee0
- Value
- five‐fold increasee0
- Comparator
- the other samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the samples treated with the anti‐browning agents (ascorbic acid + cysteine) exhibited a sharp increase in H 2 O 2 levels (a five‐fold increase when compared to the other samples)”
t0“‘Fuji’ apples”
Claim · model-written summary
The treatment increased peroxidative damage two-fold after one day.
- Taxon
- applesMalus domesticat0
- Treatment
- anti‐browning agentse1
- Outcome
- peroxidative damagee0
- Direction
- increasee0
- Value
- two‐fold increasee0
- Qualifier
- after 1 daye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and peroxidative damage, especially at the beginning of the storage period (two‐fold increase after 1 day).”
t0“‘Fuji’ apples”
e1“the samples treated with the anti‐browning agents (ascorbic acid + cysteine) exhibited a sharp increase in H 2 O 2 levels (a five‐fold increase when compared to the other samples)”
Claim · model-written summary
Peroxidase activity decreased 50% during the first storage day.
- Taxon
- applesMalus domesticat0
- Gene
- peroxidase (POX)e0
- Outcome
- peroxidase (POX) activitye0
- Direction
- decreasede0
- Value
- 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase (POX) activity decreased by 50% during the first day of storage”
t0“‘Fuji’ apples”
Claim · model-written summary
SOD and CAT activities showed no significant difference between samples.
- Taxon
- applesMalus domesticat0
- Outcome
- superoxide dismutase (SOD) and catalase (CAT) activitiese0
- Direction
- no significant changese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant changes in superoxide dismutase (SOD) and catalase (CAT) activities were found between the different samples”
t0“‘Fuji’ apples”
Claim · model-written summary
H 2 O 2 accumulation was attributed to ascorbic acid, rather than cysteine.
- Taxon
- applesMalus domesticat0
- Compound
- ascorbic acide0
- Outcome
- H 2 O 2 accumulatione0
- Qualifier
- acted as a pro‐oxidante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H 2 O 2 accumulation was not attributed to the action of cysteine but to a specific action of ascorbic acid, which mainly acted as a pro‐oxidant under these conditions.”
t0“‘Fuji’ apples”
Claim · model-written summary
The authors concluded that ascorbic acid caused oxidative damage in fresh-cut Fuji apples.
Verbatim
e0“ascorbic acid cause important oxidative damage in fresh‐cut Fuji apples.”
Claim · model-written summary
The authors called for alternatives to prevent oxidative loss of quality.
- Taxon
- applesMalus domesticat0
- Outcome
- Alternatives are required to prevent detrimental loss of qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alternatives are required to prevent detrimental loss of quality resulting from this oxidative action.”
t0“‘Fuji’ apples”
The same questions in other papers
ascorbic acid · physiology: oxidative · Malus domestica (apple)Positive and negative results
1 in the opposite direction
- 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.