Paper · 2016 · African Journal of Agricultural Research

Effect of chitosan-based coating on postharvest quality of tangerines (Citrus deliciosa Tenore): Identification of physical, chemical, and kinetic parameters during storage

Rocha Pl aacute cido Geovana; Marins da Silva Richard; Cagnin Caroline; et al.

6
claims
9
verbatim quotes
10
citations
4
research areas
✓
Open access · cc-by

Abstract

In this study, chitosan-based coating was used in tangerines in a 30-day storage period, at controlled temperature of 10°C. The selected fruits presented green surface (± 90%); they were sanitized in chlorinated water (100 mg/L) then immersed in chitosan solutions at chitosan concentrations of 0.5 g/100 ml (T2), 1 g/100 ml (T3), and 2 g/100 ml (T4) and a lot was placed aside as control treatment (T1). Tangerines were evaluated in terms of loss of mass, skin color, soluble solids, vitamin C, and titratable acidity in a 30-day storage period and weight loss kinetics was evaluated through mathematical models. The results showed that chitosan coating was effective in delaying weight loss of tangerines and the mathematical models used in the evaluation could properly explain the weight loss. The polynomial model showed better adaptation to experimental data. Tangerines with higher chitosan concentration showed small color alteration during storage. Chitosan-based coatings were effective in keeping soluble solids, vitamin C, and titratable acidity during storage. In all physicochemical characteristics analyzed, chitosan-based coating in tangerines were superior when compared with control fruits. Key words: Citrus, chitosan, postharvest, shelf life, quality.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan coating delayed tangerine weight loss.

Taxon
tangerinesCitrus reticulatae0
Treatment
chitosan coatinge0
Outcome
weight losse0
Direction
delayinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“chitosan coating was effective in delaying weight loss of tangerines”

✓ located verbatim in the source · abstract, characters 638–706 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Mathematical models explained tangerine weight loss.

Taxon
tangerinesCitrus reticulatat0
Outcome
weight losse0

Not reportedComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“tangerines”

✓ located verbatim in the source · title, characters 59–69 · show in text ↑
e0

“the mathematical models used in the evaluation could properly explain the weight loss”

✓ located verbatim in the source · abstract, characters 711–796 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The polynomial model fit experimental weight loss data better.

Taxon
tangerinesCitrus reticulatat0
Outcome
better adaptation to experimental datae0

Not reportedComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“tangerines”

✓ located verbatim in the source · title, characters 59–69 · show in text ↑
e0

“The polynomial model showed better adaptation to experimental data”

✓ located verbatim in the source · abstract, characters 798–864 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher chitosan concentration limited tangerine color alteration during storage.

Taxon
TangerinesCitrus reticulatae0
Treatment
higher chitosan concentratione0
Outcome
color alteratione0
Direction
smalle0
Qualifier
during storagee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Tangerines with higher chitosan concentration showed small color alteration during storage”

✓ located verbatim in the source · abstract, characters 866–956 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan coatings maintained soluble solids, vitamin C, and titratable acidity during storage.

Taxon
tangerinesCitrus reticulatat0
Treatment
Chitosan-based coatingse0
Outcome
soluble solids, vitamin C, and titratable aciditye0
Direction
keepinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“tangerines”

✓ located verbatim in the source · title, characters 59–69 · show in text ↑
e0

“Chitosan-based coatings were effective in keeping soluble solids, vitamin C, and titratable acidity during storage”

✓ located verbatim in the source · abstract, characters 958–1072 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Coated tangerines were superior to controls on all analyzed physicochemical traits.

Taxon
tangerinesCitrus reticulatae0
Treatment
chitosan-based coatinge0
Outcome
physicochemical characteristicse0
Direction
superiore0
Comparator
control fruitse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus reticulata
Citrus reticulata · TaxonJoe Ravi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In all physicochemical characteristics analyzed, chitosan-based coating in tangerines were superior when compared with control fruits”

✓ located verbatim in the source · abstract, characters 1074–1207 · show in text ↑

chitosan · quality: postharvest · Citrus reticulata (tangerine)Results differ

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive
See all 4 papers →

storage · quality: postharvest · Citrus reticulata (tangerine)Positive and negative results

29 papers: 27 positive, 2 negative or no effect

26 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

25 papers more in this group

See all 29 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.