Hot air convective dehydration characteristics of Daucus carota var. Nantes

The present work focuses on experimental and theoretical study of air dehydration kinetics of Daucus carota var. Nantes in laboratory scale drying chamber. Steam blanching as a pretreatment was applied prior to dehydration of shreds and the results indicated a gradual decrease in drying time from 2....

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Main Authors: Raees-ul Haq, Pradyuman Kumar, Kamlesh Prasad
Format: Article
Language:English
Published: Taylor & Francis Group 2015-12-01
Series:Cogent Food & Agriculture
Subjects:
Online Access:http://dx.doi.org/10.1080/23311932.2015.1096184
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author Raees-ul Haq
Pradyuman Kumar
Kamlesh Prasad
author_facet Raees-ul Haq
Pradyuman Kumar
Kamlesh Prasad
author_sort Raees-ul Haq
collection DOAJ
description The present work focuses on experimental and theoretical study of air dehydration kinetics of Daucus carota var. Nantes in laboratory scale drying chamber. Steam blanching as a pretreatment was applied prior to dehydration of shreds and the results indicated a gradual decrease in drying time from 2.9 to 5.5% in temperature range of 50–70°C, for steam blanched samples in comparison to untreated carrots. Four different mathematical drying models (Newton, Page, Modified Page and Henderson and Pabis) were evaluated for goodness of fit by comparing their respective R2, χ2, and RMSE parameters. Comparison of the statistical parameters led to conclusion that Page model showed a better quality of fit and presents dehydration characteristics in better way to obtain drying curves than any other model.
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spelling doaj.art-4e45156ba7ef4e8998658044104326022022-12-21T17:59:55ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322015-12-011110.1080/23311932.2015.10961841096184Hot air convective dehydration characteristics of Daucus carota var. NantesRaees-ul Haq0Pradyuman Kumar1Kamlesh Prasad2Sant Longowal Institute of Engineering & TechnologySant Longowal Institute of Engineering & TechnologySant Longowal Institute of Engineering & TechnologyThe present work focuses on experimental and theoretical study of air dehydration kinetics of Daucus carota var. Nantes in laboratory scale drying chamber. Steam blanching as a pretreatment was applied prior to dehydration of shreds and the results indicated a gradual decrease in drying time from 2.9 to 5.5% in temperature range of 50–70°C, for steam blanched samples in comparison to untreated carrots. Four different mathematical drying models (Newton, Page, Modified Page and Henderson and Pabis) were evaluated for goodness of fit by comparing their respective R2, χ2, and RMSE parameters. Comparison of the statistical parameters led to conclusion that Page model showed a better quality of fit and presents dehydration characteristics in better way to obtain drying curves than any other model.http://dx.doi.org/10.1080/23311932.2015.1096184carrotdryingdrying kineticsdrying ratemoisture ratio
spellingShingle Raees-ul Haq
Pradyuman Kumar
Kamlesh Prasad
Hot air convective dehydration characteristics of Daucus carota var. Nantes
Cogent Food & Agriculture
carrot
drying
drying kinetics
drying rate
moisture ratio
title Hot air convective dehydration characteristics of Daucus carota var. Nantes
title_full Hot air convective dehydration characteristics of Daucus carota var. Nantes
title_fullStr Hot air convective dehydration characteristics of Daucus carota var. Nantes
title_full_unstemmed Hot air convective dehydration characteristics of Daucus carota var. Nantes
title_short Hot air convective dehydration characteristics of Daucus carota var. Nantes
title_sort hot air convective dehydration characteristics of daucus carota var nantes
topic carrot
drying
drying kinetics
drying rate
moisture ratio
url http://dx.doi.org/10.1080/23311932.2015.1096184
work_keys_str_mv AT raeesulhaq hotairconvectivedehydrationcharacteristicsofdaucuscarotavarnantes
AT pradyumankumar hotairconvectivedehydrationcharacteristicsofdaucuscarotavarnantes
AT kamleshprasad hotairconvectivedehydrationcharacteristicsofdaucuscarotavarnantes