Paper · 2017 · African Journal of Agricultural Research

Effects of edible coating materials and stages of maturity at harvest on storage life and quality of tomato (Lycopersicon Esculentum Mill.) fruits

Abebe Zekrehiwot; B. Tola Yetenayet; Mohammed Ali

8
claims
17
verbatim quotes
95
citations
3
research areas
✓
Open access · cc-by

Abstract

Tomato (Lycopersicon esculentum Mill.) fruits due to their high moisture content are spoiled and deteriorate in short period of time. Once fruits are harvested, respiration and transpiration are the two major physiological processes that significantly affect storage life and quality of the fruits. However, effects of these processes can be minimized through optimizing harvesting stage of fruits and applying physical barriers for oxygen diffusion and moisture migration. The aim of this work was to investigate the combined effect of stage of harvesting of fruits and application of edible coating materials on storage life and quality of tomato fruits. Treatment combinations were the three harvesting stages of the fruits (mature green, turning and light red stages) and two coating materials (pectin and chitosan with control). Treatments were laid out in a completely randomized design with three replications. Sample fruits were evaluated periodically for different parameters. The study showed that, coating of tomato fruits delayed the ripening process with better fruits quality than uncoated ones. Combined treatment combinations resulted in a significant delay in the change of weight loss, disease incidence, disease severity and ripening index as compared to control fruits. Moreover, in terms chemical parameters, coated fruits revealed higher amount of ascorbic acid, lycopene and phenolic contents. Fruits coated with either chitosan or pectin at turning stage of maturity showed relatively better results for most of the quality parameters. Maximum shelf life was observed for fruits harvested at turning stage coated by pectin (17 days) and chitosan (16 days) films than control (10 days) at the same stage of maturity. Therefore, storage life of the fruits with better quality can be extended by combining optimum stage of harvesting with use of edible coating materials. Key words: Tomato, harvesting stage, edible coating, pectin, chitosan, storage life.

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Coating tomato fruits delayed ripening compared with uncoated fruits, with better quality.

Treatment
coatinge1
Outcome
ripening processe1
Direction
delayede1
Comparator
uncoated onese1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e1

“coating of tomato fruits delayed the ripening process with better fruits quality than uncoated ones”

✓ located verbatim in the source · abstract, characters 1009–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined harvest stage and coating treatments significantly delayed the change in weight loss, disease incidence and disease severity compared with control fruits.

Treatment
Combined treatment combinationse2
Outcome
weight loss, disease incidence, disease severitye2
Direction
delaye2
Comparator
control fruitse2

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e2

“Combined treatment combinations resulted in a significant delay in the change of weight loss, disease incidence, disease severity and ripening index as compared to control fruits”

✓ located verbatim in the source · abstract, characters 1110–1288 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined harvest stage and coating treatments significantly delayed the change in ripening index compared with control fruits.

Treatment
Combined treatment combinationse2
Outcome
ripening indexe2
Direction
delaye2
Comparator
control fruitse2

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e2

“Combined treatment combinations resulted in a significant delay in the change of weight loss, disease incidence, disease severity and ripening index as compared to control fruits”

✓ located verbatim in the source · abstract, characters 1110–1288 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Coated tomato fruits had higher ascorbic acid, lycopene and phenolic contents than uncoated fruits.

Treatment
coatede3
Outcome
ascorbic acid, lycopene and phenolic contentse3
Direction
highere3
Comparator
uncoated onese1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e3

“coated fruits revealed higher amount of ascorbic acid, lycopene and phenolic contents”

✓ located verbatim in the source · abstract, characters 1330–1415 · show in text ↑
e1

“better fruits quality than uncoated ones”

✓ located verbatim in the source · abstract, characters 1068–1108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pectin coating of fruits harvested at turning stage gave a maximum shelf life of 17 days, against 10 days for control.

Organ / stage
turning stagee4
Treatment
fruits harvested at turning stage coated by pectine4
Outcome
shelf lifee4
Direction
Maximume4
Value
17 dayse4
Qualifier
control (10 days)e4
Comparator
controle4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e4

“Maximum shelf life was observed for fruits harvested at turning stage coated by pectin (17 days) and chitosan (16 days) films than control (10 days) at the same stage of maturity”

✓ located verbatim in the source · abstract, characters 1560–1738 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan coating of fruits harvested at turning stage gave a maximum shelf life of 16 days, against 10 days for control.

Organ / stage
turning stagee4
Treatment
chitosane4
Outcome
shelf lifee4
Direction
Maximume4
Value
16 dayse4
Qualifier
control (10 days)e4
Comparator
controle4

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e4

“Maximum shelf life was observed for fruits harvested at turning stage coated by pectin (17 days) and chitosan (16 days) films than control (10 days) at the same stage of maturity”

✓ located verbatim in the source · abstract, characters 1560–1738 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fruits coated with chitosan or pectin at turning stage showed relatively better results for most quality parameters.

Organ / stage
turning stagee5
Treatment
coated with either chitosan or pectine5
Outcome
quality parameterse5
Direction
bettere5

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e5

“Fruits coated with either chitosan or pectin at turning stage of maturity showed relatively better results for most of the quality parameters”

✓ located verbatim in the source · abstract, characters 1417–1558 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Combining optimum harvest stage with edible coating materials can extend storage life of tomato fruits with better quality.

Treatment
combining optimum stage of harvesting with use of edible coating materialse6
Outcome
storage lifee6

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Tomato (Lycopersicon esculentum Mill.) fruits”

✓ located verbatim in the source · abstract, characters 0–45 · show in text ↑
e6

“storage life of the fruits with better quality can be extended by combining optimum stage of harvesting with use of edible coating materials”

✓ located verbatim in the source · abstract, characters 1751–1891 · show in text ↑

chitosan · quality: general · Solanum lycopersicum (tomato)Results differ

11 papers: 10 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

pectin · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

chitosan · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

40 papers: 39 positive, 1 negative or no effect

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

  1. positive
  2. positive
  3. positive

36 papers more in this group

See all 40 papers →

storage · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

158 papers: 141 positive, 17 negative or no effect

140 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Aloe vera coating delayed tomato ripening.

    Development of Aloe vera based edible coating for tomato · 2013 · compared with control

    Same directionCited by this paper

  2. positive
  3. positive

154 papers more in this group

See all 158 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.