Abstract
The present investigation was carried out to study the effect of incorporation of osmotic dehydration (OD) and drying methods on the quality of carrot slices (gross chemical composition, dehydration parameters, microbiological count and sensory attributes) immediately, after dehydration and during storage at room temperature (25± 3° C) for 6 months. Carrot slices were soaked in different sucrose solutions 15%(C1), 40%(C2), 20-40% (C3) and 20-40%(C4) with adding sodium metabisulphite (0.3%). Osmotic dehydration was followed by two drying methods (solar sun hood and solar cabinet driers). Results indicated that consecutive osmotic solution(C4) succeeded in releasing ≥45%of the moisture content from fresh carrot. Osmosis succeeded in reducing drying ratio of carrot (from 6.52:1 to 2.86:1), also, carrot slices which were osmotically dehydrated prior to drying were preferably rehydrated than non-treated ones. On the other hand, both drying methods as well as sucrose solution at different concentrations didn’t affect the contents of different minerals (macro or micro ones). Total carotenoides decreased as a result of dehydration process; however, the lowest decrement was recorded for C4 treatment, with the two dehydration methods (sun hood and cabinet dryers).With regard to total bacterial count, osmo-dried carrot samples are bacteriologically accepted as specified in the Egyptian Standards. Furthermore, obtained results clearly showed that the color, taste, odor , texture and overall acceptability recorded a high rating in a consecutive sucrose solution concentrationC3 (20-40%). It can be concluded from this investigation that osmotic dehydration with sucrose solution positively affect the transfer process of solids, led to water loss and weight reduction during osmotic, besides, a consecutive concentration of 20-40% and solar drying could prolong self-life of the carrot slices, with gaining high rating of the sensory attributes concerning color, taste, odor and texture of carrot after 6 months of storage (25 ± 3° C).
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Claims 12
Claim · model-written summary
Consecutive osmotic solution C4 released at least 45% of the moisture content from fresh carrot.
- Taxon
- carrot
Daucus carotae1 - Treatment
- consecutive osmotic solution(C4)e1
- Outcome
- moisture contente1
- Direction
- increaseinferrede1
- Value
- ≥45%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“consecutive osmotic solution(C4) succeeded in releasing ≥45%of the moisture content from fresh carrot”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Osmosis reduced the drying ratio of carrot from 6.52:1 to 2.86:1.
- Taxon
- carrotDaucus carotae1
- Treatment
- Osmosise1
- Outcome
- drying ratioe1
- Direction
- reducinge1
- Value
- from 6.52:1 to 2.86:1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Osmosis succeeded in reducing drying ratio of carrot (from 6.52:1 to 2.86:1)”
Claim · model-written summary
Carrot slices osmotically dehydrated before drying were preferably rehydrated than non-treated slices.
- Taxon
- carrotDaucus carotae1
- Treatment
- osmotically dehydrated prior to dryinge1
- Outcome
- rehydratede1
- Direction
- preferablye1
- Comparator
- non-treated onese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“carrot slices which were osmotically dehydrated prior to drying were preferably rehydrated than non-treated ones”
Claim · model-written summary
Drying methods did not affect the contents of different minerals in carrot slices.
- Taxon
- carrotDaucus carotae2
- Treatment
- drying methodse1
- Outcome
- contents of different mineralse1
- Direction
- didn’t affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“both drying methods as well as sucrose solution at different concentrations didn’t affect the contents of different minerals”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Sucrose solution at different concentrations did not affect the contents of different minerals in carrot slices.
- Taxon
- carrotDaucus carotae2
- Treatment
- sucrose solution at different concentrationse1
- Outcome
- contents of different mineralse1
- Direction
- didn’t affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“both drying methods as well as sucrose solution at different concentrations didn’t affect the contents of different minerals”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Total carotenoids decreased in carrot slices as a result of the dehydration process.
- Taxon
- carrotDaucus carotae2
- Treatment
- dehydration processe1
- Outcome
- Total carotenoidese1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Total carotenoides decreased as a result of dehydration process”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
The lowest carotenoid decrement was recorded for the C4 treatment, with both dehydration methods.
- Taxon
- carrotDaucus carotae2
- Treatment
- C4 treatmente1
- Outcome
- decremente1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“however, the lowest decrement was recorded for C4 treatment, with the two dehydration methods (sun hood and cabinet dryers)”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Osmo-dried carrot samples were bacteriologically accepted as specified in the Egyptian Standards for total bacterial count.
- Taxon
- carrotDaucus carotae1
- Outcome
- total bacterial counte1
- Qualifier
- bacteriologically accepted as specified in the Egyptian Standardse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“With regard to total bacterial count, osmo-dried carrot samples are bacteriologically accepted as specified in the Egyptian Standards”
Claim · model-written summary
Color, taste and odor of carrot slices in the C3 sucrose treatment (20-40%) recorded a high sensory rating.
- Taxon
- carrotDaucus carotae2
- Treatment
- consecutive sucrose solution concentrationC3 (20-40%)e1
- Outcome
- color, taste, odore1
- Direction
- high ratinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the color, taste, odor , texture and overall acceptability recorded a high rating in a consecutive sucrose solution concentrationC3 (20-40%)”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Texture and overall acceptability of carrot slices in the C3 sucrose treatment (20-40%) recorded a high sensory rating.
- Taxon
- carrotDaucus carotae2
- Treatment
- consecutive sucrose solution concentrationC3 (20-40%)e1
- Outcome
- texture and overall acceptabilitye1
- Direction
- high ratinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the color, taste, odor , texture and overall acceptability recorded a high rating in a consecutive sucrose solution concentrationC3 (20-40%)”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
Osmotic dehydration with sucrose solution positively affected the transfer process of solids and led to water loss and weight reduction.
- Taxon
- carrotDaucus carotae2
- Treatment
- osmotic dehydration with sucrose solutione1
- Outcome
- transfer process of solidse1
- Direction
- positively affecte1
- Qualifier
- led to water loss and weight reduction during osmotice1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“osmotic dehydration with sucrose solution positively affect the transfer process of solids, led to water loss and weight reduction during osmotic”
e2“Carrot slices were soaked in different sucrose solutions”
Claim · model-written summary
A consecutive concentration of 20-40% and solar drying could prolong the self-life of carrot slices.
- Taxon
- carrotDaucus carotae1
- Treatment
- a consecutive concentration of 20-40% and solar dryinge1
- Outcome
- self-lifee1
- Direction
- could prolonge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“a consecutive concentration of 20-40% and solar drying could prolong self-life of the carrot slices”
The same questions in other papers
sucrose · quality: postharvest · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- positive
drought · molecular: metabolites · Daucus carota (carrot)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
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.