Abstract
Physicochemical properties of citric acid and chitosan treated fresh tomato fruits were investigated in the present study. The experimental results showed that control fruits had higher weight loss, lower firmness and pH, but tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness, but significantly increased the SOD, POD, CAT and PAL activities of fresh tomatoes. All these treated tomato fruits maintained lighter color and higher contents of total phenolics and flavonoids, significantly decreased weight loss and MDA content of fresh tomato fruits compared to control. Of all these treated tomato fruits, citric acid + chitosan treatment maintained higher fruit quality, reduced the undesirable changes and protected the fruit tissues from injury. In short, the experiment datum indicated that citric acid + chitosan might be applied in a safe and effective preservative of fresh tomato fruits.
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Claims 12
Claim · model-written summary
Chitosan and citric acid treatment significantly decreased weight loss and MDA content of tomato fruit compared with control
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- chitosan and citric acide3
- Outcome
- weight loss and MDA contente0
- Direction
- decreasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“significantly decreased weight loss and MDA content of fresh tomato fruits compared to control”
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment significantly increased SOD, POD and CAT activities of tomato fruit
- Taxon
- tomato
Solanum lycopersicume2 - Treatment
- chitosan and citric acide3
- Outcome
- SOD, POD, CATe2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“significantly increased the SOD, POD, CAT and PAL activities of fresh tomatoes”
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment significantly increased PAL activity of tomato fruit
- Taxon
- tomato
Solanum lycopersicume2 - Treatment
- chitosan and citric acide3
- Outcome
- PAL activitiese2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“significantly increased the SOD, POD, CAT and PAL activities of fresh tomatoes”
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment had no significant effect on pH, Vc and TSS of tomato fruit
- Taxon
- tomato
Solanum lycopersicume3 - Treatment
- chitosan and citric acide3
- Outcome
- pH, Vc, TSSe3
- Direction
- no significant effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment had no significant effect on firmness of tomato fruit
- Taxon
- tomato
Solanum lycopersicume3 - Treatment
- chitosan and citric acide3
- Outcome
- firmnesse3
- Direction
- no significant effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment kept higher contents of total phenolics and flavonoids in tomato fruit
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- chitosan and citric acide3
- Outcome
- total phenolics and flavonoidse4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“All these treated tomato fruits maintained lighter color and higher contents of total phenolics and flavonoids”
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Chitosan and citric acid treatment maintained lighter tomato fruit color
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- chitosan and citric acide3
- Outcome
- colore4
- Direction
- lightere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“All these treated tomato fruits maintained lighter color and higher contents of total phenolics and flavonoids”
e3“tomatoes-treated with chitosan and citric acid had no significant effect on pH, Vc, TSS and firmness”
Claim · model-written summary
Control tomato fruits had lower firmness and pH than treated fruits
- Taxon
- Tomato
Solanum lycopersicumt0 - Outcome
- firmness and pHe1
- Direction
- lowere1
- Qualifier
- control fruitse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Tomato ( Solanum lycopersicon Mill)”
e1“control fruits had higher weight loss, lower firmness and pH”
Claim · model-written summary
Citric acid plus chitosan might be applied as a safe and effective preservative of fresh tomato fruit
- Taxon
- tomato
Solanum lycopersicume5 - Outcome
- safe and effective preservativee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“citric acid + chitosan might be applied in a safe and effective preservative of fresh tomato fruits”
Claim · model-written summary
Citric acid plus chitosan treatment maintained higher fruit quality than the other treated tomato fruits
- Taxon
- tomato
Solanum lycopersicume6 - Treatment
- citric acid + chitosane6
- Outcome
- fruit qualitye6
- Direction
- highere6
- Comparator
- all these treated tomato fruitse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Of all these treated tomato fruits, citric acid + chitosan treatment maintained higher fruit quality”
Claim · model-written summary
Citric acid plus chitosan treatment reduced undesirable changes in tomato fruit
- Taxon
- tomato
Solanum lycopersicume6 - Treatment
- citric acid + chitosane6
- Outcome
- undesirable changese7
- Direction
- reducede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Of all these treated tomato fruits, citric acid + chitosan treatment maintained higher fruit quality”
e7“reduced the undesirable changes and protected the fruit tissues from injury”
Claim · model-written summary
Citric acid plus chitosan treatment protected tomato fruit tissues from injury
- Taxon
- tomato
Solanum lycopersicume6 - Treatment
- citric acid + chitosane6
- Outcome
- injurye7
- Direction
- protectede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Of all these treated tomato fruits, citric acid + chitosan treatment maintained higher fruit quality”
e7“reduced the undesirable changes and protected the fruit tissues from injury”
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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.