Abstract
ABSTRACT Commercial sun‐drying of raisins requires a long time, and chemical pretreatments are used to increase the drying rate. The feasibility of improving the sun‐drying process of grapes by microwaves was investigated. Sultana seedless grapes, dipped in alkali solution, were pre‐treated in a domestic microwave oven and dried by direct solar radiation. Microwave pre treatment reduced the moisture content by 10–20%. The microwave‐treated grapes dried nearly two times faster than the controls. Blanching in boiling water had the same effect on the drying rate as microwaves. Color and appearance of treated grapes were comparable to commercial products.
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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 4
Claim · model-written summary
Microwave pre treatment reduced grape moisture content by 10–20%
- Taxon
- grapese0
- Treatment
- Microwave pre treatmente1
- Outcome
- moisture contente1
- Direction
- reducede1
- Value
- 10–20%e1
Not reportedComparator
Verbatim
e0“Sultana seedless grapes, dipped in alkali solution”
e1“Microwave pre treatment reduced the moisture content by 10–20%”
Claim · model-written summary
Microwave-treated grapes dried nearly two times faster than controls
Verbatim
e0“Sultana seedless grapes, dipped in alkali solution”
e1“Microwave pre treatment reduced the moisture content by 10–20%”
e2“dried nearly two times faster than the controls”
e3“Blanching in boiling water had the same effect on the drying rate as microwaves”
Claim · model-written summary
Blanching in boiling water had the same drying-rate effect on grapes as microwave treatment
Verbatim
e0“Sultana seedless grapes, dipped in alkali solution”
e3“Blanching in boiling water had the same effect on the drying rate as microwaves”
Claim · model-written summary
Color and appearance of microwave-treated grapes were comparable to commercial products
Verbatim
e4“Color and appearance of treated grapes were comparable to commercial products”
The same questions in other papers
processing · quality: grain · VitisPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
processing · quality: postharvest · VitisPositive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction
- positive
- no effect
- no effect
10 papers more in this group
See all 14 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.