Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling
Ginger is of high value and export oriented commodity crop, which plays an important role in agricultural sector. Proper drying techniques are required to capitalize this crop. In the present study, the effect of chemical pretreatment of alkaline ethyl oleate on drying behaviour of ginger was invest...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/890384 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556342670262272 |
|---|---|
| author | A. Waheed Deshmukh Mahesh N. Varma Chang Kyoo Yoo Kailas L. Wasewar |
| author_facet | A. Waheed Deshmukh Mahesh N. Varma Chang Kyoo Yoo Kailas L. Wasewar |
| author_sort | A. Waheed Deshmukh |
| collection | DOAJ |
| description | Ginger is of high value and export oriented commodity crop, which plays an important role in agricultural sector. Proper drying techniques are required to capitalize this crop. In the present study, the effect of chemical pretreatment of alkaline ethyl oleate on drying behaviour of ginger was investigated and compared with untreated ginger at selected temperatures of 45, 55, and 65°C at a constant air velocity of 1.8 m/s. The drying rate curves showed that drying occurred in falling rate period and the drying times of pretreated ginger were shorter than those of untreated ginger. Thin-layer drying models such as Newton, Page, Modified Page, Henderson and Pabis, and Wang and Singh were evaluated based on statistical criteria. The Page model was found to be a better model for describing the drying kinetics of the ginger. The rehydration capacity of pretreated sample was more than that of untreated sample and increased with drying temperature. The transport of water during drying was temperature dependent and described by Fick’s equation. The effective diffusivity varied from to m2/s and to m2/s with drying temperature for untreated and pretreated ginger slices, respectively. |
| format | Article |
| id | doaj-art-7c1179bf4f69415e9eb0708ace002e5f |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-7c1179bf4f69415e9eb0708ace002e5f2025-02-03T05:45:39ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/890384890384Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical ModellingA. Waheed Deshmukh0Mahesh N. Varma1Chang Kyoo Yoo2Kailas L. Wasewar3Priyadarshini Institute of Engineering and Technology, RTMN University, Nagpur, Maharashtra 440018, IndiaAdvanced Separations and Analytical Laboratory, Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur Maharashtra 440011, IndiaEnvironmental Management & Systems Engineering Lab (EMSEL), Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of KoreaAdvanced Separations and Analytical Laboratory, Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur Maharashtra 440011, IndiaGinger is of high value and export oriented commodity crop, which plays an important role in agricultural sector. Proper drying techniques are required to capitalize this crop. In the present study, the effect of chemical pretreatment of alkaline ethyl oleate on drying behaviour of ginger was investigated and compared with untreated ginger at selected temperatures of 45, 55, and 65°C at a constant air velocity of 1.8 m/s. The drying rate curves showed that drying occurred in falling rate period and the drying times of pretreated ginger were shorter than those of untreated ginger. Thin-layer drying models such as Newton, Page, Modified Page, Henderson and Pabis, and Wang and Singh were evaluated based on statistical criteria. The Page model was found to be a better model for describing the drying kinetics of the ginger. The rehydration capacity of pretreated sample was more than that of untreated sample and increased with drying temperature. The transport of water during drying was temperature dependent and described by Fick’s equation. The effective diffusivity varied from to m2/s and to m2/s with drying temperature for untreated and pretreated ginger slices, respectively.http://dx.doi.org/10.1155/2013/890384 |
| spellingShingle | A. Waheed Deshmukh Mahesh N. Varma Chang Kyoo Yoo Kailas L. Wasewar Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling Journal of Chemistry |
| title | Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling |
| title_full | Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling |
| title_fullStr | Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling |
| title_full_unstemmed | Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling |
| title_short | Effect of Ethyl Oleate Pretreatment on Drying of Ginger: Characteristics and Mathematical Modelling |
| title_sort | effect of ethyl oleate pretreatment on drying of ginger characteristics and mathematical modelling |
| url | http://dx.doi.org/10.1155/2013/890384 |
| work_keys_str_mv | AT awaheeddeshmukh effectofethyloleatepretreatmentondryingofgingercharacteristicsandmathematicalmodelling AT maheshnvarma effectofethyloleatepretreatmentondryingofgingercharacteristicsandmathematicalmodelling AT changkyooyoo effectofethyloleatepretreatmentondryingofgingercharacteristicsandmathematicalmodelling AT kailaslwasewar effectofethyloleatepretreatmentondryingofgingercharacteristicsandmathematicalmodelling |