Abstract
The purpose of this study was to evaluate the possibility of using polyols (erythritol, xylitol, and maltitol) as alternatives to sucrose commonly used for osmotic dehydration (OD) of apples and to determine their content in osmotically dehydrated and dried fruit. For comparison, apples were also dehydrated in a sucrose solution. The content of sugars (sucrose, fructose, and glucose) was determined as well. Osmotic dehydration was examined at a temperature of 40 °C in time ranges between 15 and 360 min, and also 1440 min. The polyol solutions were equally or significantly more effective in the OD of apples compared to the sucrose solution. Regardless of the type of osmotic solution, the water loss of apples was from 2 to 10 times greater than solid gain. The color of fruit dehydrated in sucrose and xylitol solutions was characterized by the smallest total color difference (7.9–10.5) compared with the fresh apple tissue. Osmotic dehydration of apples in polyol solutions resulted in the transfer of these substances to fruit tissue. Erythritol was the most effective osmotic agent. The use of polyols for the OD of fruit at the pretreatment stage and the appropriate drying method can be used to create products with high qualities among others due to the lack of added sugars. The use of hybrid drying after the osmotic treatment is a good alternative to the freeze-drying process.
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Claims 8
Claim · model-written summary
Polyol solutions were at least as effective as sucrose solution for osmotic dehydration of apples.
- Taxon
- apples
Malus domesticae0 - Treatment
- polyol solutionse0
- Outcome
- OD of applese0
- Direction
- equally or significantly more effectivee0
- Comparator
- sucrose solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The polyol solutions were equally or significantly more effective in the OD of apples compared to the sucrose solution.”
Claim · model-written summary
Water loss from apples was two to ten times greater than solid gain regardless of osmotic solution.
- Taxon
- applesMalus domesticae0
- Outcome
- water loss of applese0
- Direction
- greater thane0
- Value
- 2 to 10 timese0
- Comparator
- solid gaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of the type of osmotic solution, the water loss of apples was from 2 to 10 times greater than solid gain.”
Claim · model-written summary
Fruit dehydrated in sucrose solution showed among the smallest total color differences from fresh tissue.
- Taxon
- applesMalus domesticat0
- Treatment
- sucrosee0
- Outcome
- total color differencee0
- Direction
- smalleste0
- Value
- 7.9–10.5e0
- Comparator
- fresh apple tissuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The color of fruit dehydrated in sucrose and xylitol solutions was characterized by the smallest total color difference (7.9–10.5) compared with the fresh apple tissue.”
t0“apples”
Claim · model-written summary
Fruit dehydrated in xylitol solution showed among the smallest total color differences from fresh tissue.
- Taxon
- applesMalus domesticat0
- Treatment
- xylitol solutionse0
- Outcome
- total color differencee0
- Direction
- smalleste0
- Value
- 7.9–10.5e0
- Comparator
- fresh apple tissuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The color of fruit dehydrated in sucrose and xylitol solutions was characterized by the smallest total color difference (7.9–10.5) compared with the fresh apple tissue.”
t0“apples”
Claim · model-written summary
Osmotic dehydration in polyol solutions transferred these substances into apple fruit tissue.
- Taxon
- applesMalus domesticae0
- Treatment
- polyol solutionse0
- Outcome
- transfer of these substances to fruit tissuee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Osmotic dehydration of apples in polyol solutions resulted in the transfer of these substances to fruit tissue.”
Claim · model-written summary
Erythritol was the most effective osmotic agent for apples.
- Taxon
- applesMalus domesticat0
- Treatment
- Erythritole0
- Outcome
- most effective osmotic agente0
- Direction
- most effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Erythritol was the most effective osmotic agent.”
t0“apples”
Claim · model-written summary
The authors recommend polyol osmotic pretreatment with suitable drying to produce fruit products without added sugars.
- Taxon
- applesMalus domesticat0
- Treatment
- polyolse0
- Outcome
- products with high qualities among others due to the lack of added sugarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of polyols for the OD of fruit at the pretreatment stage and the appropriate drying method can be used to create products with high qualities among others due to the lack of added sugars.”
t0“apples”
Claim · model-written summary
The authors recommend hybrid drying after osmotic treatment as an alternative to freeze-drying.
- Taxon
- applesMalus domesticat0
- Treatment
- hybrid drying after the osmotic treatmente0
- Outcome
- good alternative to the freeze-drying processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of hybrid drying after the osmotic treatment is a good alternative to the freeze-drying process.”
t0“apples”
The same questions in other papers
sucrose · quality: postharvest · Malus domestica (apple)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
xylitol · quality: postharvest · Malus domestica (apple)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.