Abstract
Minimally processed carrots (MPC) was coated with ascorbic acid-added carboxymethyl cellulose/candelilla wax emulsion, then placed in plastic boxes with perforated polyethylene wrap, and stored at 5°C. It was found that the horizontal cross-section of samples absorbed larger amounts of emulsion than the lateral surface. The individual wax globules of the coating deposited in the interior of the damaged (by peeling) cortical cells were visualized using scanning electron microscopy. The coating improved water vapor resistance of MPC, temporarily increased the respiratory rate, decreased the activity of polyphenol oxidase, and prevented the formation of “white blush.” The acidity, total phenolic content, and texture of the MPC were not affected by the coating treatment. In summary, the edible coating (along with packaging) can serve as a promising approach for maintaining the fresh-like characteristics of minimally processed carrots through 21 days of cold storage. Practical applications The treatment of minimally processed carrots with the carboxymethyl cellulose/candelilla wax/ascorbic acid emulsion results in increased moisture retention. Consequently, the coated carrots exhibit reduced weight loss, unchanged hardness, and no “white blush.” As expected, the coating inhibited the activity of polyphenol oxidase, most likely due to the MPC surface acidification. In summary, the edible coating (along with packaging) can serve as a promising approach for maintaining the fresh-like characteristics of minimally processed carrots through 21 days of cold storage. However, the noticeable disadvantage of the coated carrots is the waxy circular deposit around the pericycle and endodermis cells.
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Claims 11
Claim · model-written summary
Carrot horizontal cross-sections absorbed more emulsion than lateral surfaces.
- Taxon
- carrots
Daucus carotat0 - Organ / stage
- horizontal cross-sectione0
- Outcome
- amounts of emulsione0
- Direction
- largere0
- Comparator
- lateral surfacee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the horizontal cross-section of samples absorbed larger amounts of emulsion than the lateral surface”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Wax globules were seen inside damaged cortical cells.
- Taxon
- carrotsDaucus carotat0
- Organ / stage
- cortical cellse0
- Outcome
- wax globules of the coating deposited in the interior of the damaged (by peeling) cortical cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The individual wax globules of the coating deposited in the interior of the damaged (by peeling) cortical cells were visualized using scanning electron microscopy.”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating improved water vapor resistance in minimally processed carrots.
- Taxon
- carrotsDaucus carotat0
- Treatment
- coatinge0
- Outcome
- water vapor resistancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The coating improved water vapor resistance of MPC”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating temporarily increased carrot respiratory rate.
- Taxon
- carrotsDaucus carotat0
- Treatment
- coatinge1
- Outcome
- respiratory ratee0
- Direction
- increasede0
- Qualifier
- temporarilye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“temporarily increased the respiratory rate”
e1“The coating improved water vapor resistance of MPC”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating decreased polyphenol oxidase activity in carrots.
- Taxon
- carrotsDaucus carotat0
- Treatment
- coatinge1
- Gene
- polyphenol oxidasee0
- Outcome
- activity of polyphenol oxidasee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased the activity of polyphenol oxidase”
e1“The coating improved water vapor resistance of MPC”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating prevented white blush in carrots.
- Taxon
- carrotsDaucus carotat0
- Treatment
- coatinge1
- Outcome
- formation of “white blush.”e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prevented the formation of “white blush.””
e1“The coating improved water vapor resistance of MPC”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating did not affect carrot acidity, total phenolic content, or texture.
- Taxon
- carrotsDaucus carotat0
- Treatment
- coating treatmente0
- Outcome
- acidity, total phenolic content, and texturee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The acidity, total phenolic content, and texture of the MPC were not affected by the coating treatment.”
t0“carrots ( Daucus carota L.)”
Claim · model-written summary
Coating increased moisture retention in carrots.
- Taxon
- carrotsDaucus carotae0
- Treatment
- carboxymethyl cellulose/candelilla wax/ascorbic acid emulsione0
- Outcome
- moisture retentione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment of minimally processed carrots with the carboxymethyl cellulose/candelilla wax/ascorbic acid emulsion results in increased moisture retention.”
Claim · model-written summary
Coated carrots had reduced weight loss.
- Taxon
- carrotsDaucus carotae0
- Treatment
- carboxymethyl cellulose/candelilla wax/ascorbic acid emulsione1
- Outcome
- weight losse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the coated carrots exhibit reduced weight loss”
e1“carboxymethyl cellulose/candelilla wax/ascorbic acid emulsion”
Claim · model-written summary
Coated carrots exhibited a waxy circular deposit around pericycle and endodermis cells.
- Taxon
- carrotsDaucus carotae0
- Organ / stage
- pericycle and endodermis cellse0
- Outcome
- waxy circular deposit around the pericycle and endodermis cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the noticeable disadvantage of the coated carrots is the waxy circular deposit around the pericycle and endodermis cells”
Claim · model-written summary
The authors propose the coating and packaging to maintain fresh-like carrot characteristics through 21 days of cold storage.
- Taxon
- carrotsDaucus carotae0
- Outcome
- maintaining the fresh-like characteristicse0
- Value
- 21 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were not affected by the coating treatment. In summary, the edible coating (along with packaging) can serve as a promising approach for maintaining the fresh-like characteristics of minimally processed carrots through 21 days of cold storage”
The same questions in other papers
ascorbic acid · quality: postharvest · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- negative
storage · disease · Daucus carota (carrot)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
storage · quality: sugar starch · Daucus carota (carrot)Positive and negative results
3 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →storage · physiology: antioxidant enzymes · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- 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.