Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava
Modelling studies of guava drying and quality are presented using theoretical and statistical models by varying temperature from 55 to 75 °C and slice thickness from 3 to 9 mm. The quality of dried fruit was measured for its water activity, colour, vitamin C, and texture. The superposition technique...
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| Format: | Article |
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Springer
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/35383/ |
| _version_ | 1848848039693778944 |
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| author | Kek, Siok Peng Chin, Nyuk Ling Yusof, Yus Aniza |
| author_facet | Kek, Siok Peng Chin, Nyuk Ling Yusof, Yus Aniza |
| author_sort | Kek, Siok Peng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Modelling studies of guava drying and quality are presented using theoretical and statistical models by varying temperature from 55 to 75 °C and slice thickness from 3 to 9 mm. The quality of dried fruit was measured for its water activity, colour, vitamin C, and texture. The superposition technique with Midilli-Kucuk model showed efficiency in modelling the drying process with R 2 = 0.9991. The second-order polynomial equations adequately described the quality of dried guava with regression coefficient, R 2 > 0.7. Drying time was a good function of temperature and thickness (P < 0.001); water activity, colour and vitamin C showed strong dependence on temperature (P < 0.1); while texture was mainly influenced by its thickness (P < 0.005). The optimum drying temperature of 70 °C at slice thickness of 6 mm was determined using the desirability function method. Simultaneous modelling using the theoretical and statistical drying models provides information on water diffusion and evaporation with the drying responses and factors. |
| first_indexed | 2025-11-15T09:28:10Z |
| format | Article |
| id | upm-35383 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:28:10Z |
| publishDate | 2014 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-353832016-01-05T07:33:14Z http://psasir.upm.edu.my/id/eprint/35383/ Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava Kek, Siok Peng Chin, Nyuk Ling Yusof, Yus Aniza Modelling studies of guava drying and quality are presented using theoretical and statistical models by varying temperature from 55 to 75 °C and slice thickness from 3 to 9 mm. The quality of dried fruit was measured for its water activity, colour, vitamin C, and texture. The superposition technique with Midilli-Kucuk model showed efficiency in modelling the drying process with R 2 = 0.9991. The second-order polynomial equations adequately described the quality of dried guava with regression coefficient, R 2 > 0.7. Drying time was a good function of temperature and thickness (P < 0.001); water activity, colour and vitamin C showed strong dependence on temperature (P < 0.1); while texture was mainly influenced by its thickness (P < 0.005). The optimum drying temperature of 70 °C at slice thickness of 6 mm was determined using the desirability function method. Simultaneous modelling using the theoretical and statistical drying models provides information on water diffusion and evaporation with the drying responses and factors. Springer 2014-12 Article PeerReviewed Kek, Siok Peng and Chin, Nyuk Ling and Yusof, Yus Aniza (2014) Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava. Journal of Food Science and Technology, 51 (12). pp. 3609-3622. ISSN 0022-1155; ESSN: 0975-8402 http://link.springer.com/article/10.1007%2Fs13197-013-0923-0 10.1007/s13197-013-0923-0 |
| spellingShingle | Kek, Siok Peng Chin, Nyuk Ling Yusof, Yus Aniza Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title | Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title_full | Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title_fullStr | Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title_full_unstemmed | Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title_short | Simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| title_sort | simultaneous time-temperature-thickness superposition theoretical and statistical modelling of convective drying of guava |
| url | http://psasir.upm.edu.my/id/eprint/35383/ http://psasir.upm.edu.my/id/eprint/35383/ http://psasir.upm.edu.my/id/eprint/35383/ |