Abstract
The present work was aimed to study the effect of pretreatments and drying temperatures on quality and drying characteristic of onion slices in tray dryer and to study the effect of drying air temperature (1st stage drying at 70, 80, 90˚C and 2nd stage at 600C) on onion slices (2, 4, and 6mm) also examine size, pretreatments water blanching and 0.2, 0.4, 0.6 % Potassium Metabisulphite on the quality of dried onion. Result of study showed that the water blanched onion samples dried at 90˚C (6mm size) took least time to get dry. Rehydration ratio was increased with increase in temperature. Potassium Metabisulphite blanched sample dried at 70˚C were better in nutritional quality. Quality of onion with respect to colour, aroma and overall acceptability was better for 0.6% Potassium Metabisulphite blanched onion samples dried at 70˚C
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Claims 4
Claim · model-written summary
Water-blanched 6 mm onion at 90 degrees C dried in the least time.
- Taxon
- onion
Allium cepae0 - Treatment
- water blanched onion samples dried at 90˚C (6mm size)e0
- Outcome
- time to get drye0
- Direction
- leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water blanched onion samples dried at 90˚C (6mm size) took least time to get dry”
Claim · model-written summary
Rehydration ratio increased with drying temperature.
- Taxon
- onionAllium cepae1
- Treatment
- temperaturee0
- Outcome
- Rehydration ratioe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rehydration ratio was increased with increase in temperature.”
e1“onion slices (2, 4, and 6mm)”
Claim · model-written summary
Potassium metabisulphite blanched onion dried at 70 degrees C had better nutritional quality.
- Taxon
- onionAllium cepae1
- Treatment
- Potassium Metabisulphite blanched sample dried at 70˚Ce0
- Outcome
- nutritional qualitye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium Metabisulphite blanched sample dried at 70˚C were better in nutritional quality.”
e1“onion slices (2, 4, and 6mm)”
Claim · model-written summary
Onion treated with 0.6% potassium metabisulphite and dried at 70 degrees C had better colour, aroma, and acceptability.
- Taxon
- onionAllium cepae0
- Treatment
- 0.6% Potassium Metabisulphite blanched onion samples dried at 70˚Ce0
- Outcome
- colour, aroma and overall acceptabilitye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quality of onion with respect to colour, aroma and overall acceptability was better for 0.6% Potassium Metabisulphite blanched onion samples dried at 70˚C”
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