Thin-Layer Drying Model of Rambutan (Nephelium lappaceum L.) Kernel and Its Application in Fat Extraction Process
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Sirirattana Chimplee
Abstract
Rambutan (Nephelium lappaceum L.) kernels contain a high amount of fat and it has a potential to be used as a new alternative source of edible vegetable fat. Drying of fat seed can improve the fat yield and prolong the seed storage shelf life. Therefore the drying behaviour of rambutan kernels was investigated using a hot air dryer for 6 h at each of three temperatures, 45°C, 55°C and 65°C. Based on the coefficient of determination (R2) and root mean square error (RMSE), modified Henderson and Pabis model was found to be the best thin-layer drying model for rambutan kernels (R2 > 0.99 and RMSE < 0.02). The effective moisture diffusivity of rambutan kernels, estimated from a modified equation of Fick’s second law of diffusion, was 2.56 × 10–10 to 3.68 × 10–10 m2 s–1. The result of fat extraction significantly indicates the effect of low moisture rambutan kernels on the fat yield enhancing (P < 0.05).
Acknowledgements
The authors wish to thank The Graduate School of Kasetsart University for scholarship and Malee Sampran Public Company Limited, Sampran, Nakhon Pathom, Thailand, for raw material support. We also acknowledge Asst Prof. Weerachet Jittanit for his suggestions and kindly help.
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©2015 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Modeling and Improving the Performance of Cabinet Solar Dryer Using Computational Fluid Dynamics
- Evaluation of Chemical, Biochemical and Microbiological Quality in Tomato Using Multivariate Analysis
- Effects of the Addition of Grape Seed Powder on the Thermorheological Properties of Frying Batters
- Degradation of Vitamin E in Nanoemulsions during Storage as Affected by Temperature, Light and Darkness
- Effect of Different Drying Processes on the Physicochemical and Antioxidant Properties of Thinned Young Apple
- Mechanical and Sensory Evaluation of Noodles Incorporated with Betel Leaf Extract
- Mathematical Modeling of Thin-Layer Solar Drying of Eland (Taurotragus oryx) Jerky
- Thin-Layer Drying Model of Rambutan (Nephelium lappaceum L.) Kernel and Its Application in Fat Extraction Process
- Color Change Kinetics of Tea Leaves During Microwave Drying
- Influence of Blanching Pretreatment on the Drying Characteristics of Cherry Tomato and Mathematical Modeling
- Studies on Grinding and Extraction of Oil from Fenugreek (Trigonella foenum-graecum) Seed
- Effect of Drum Drying on Physico-chemical Characteristics of Dragon Fruit Peel (Hylocereus polyrhizus)
- Standardization of Curing and Microwave Drying of Turmeric (Curcuma longa) Rhizomes
- Shorter Communication
- Assessment and Separation of Angiotensin I-Converting Enzyme Inhibitory Peptides in Chinese Soypaste
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Modeling and Improving the Performance of Cabinet Solar Dryer Using Computational Fluid Dynamics
- Evaluation of Chemical, Biochemical and Microbiological Quality in Tomato Using Multivariate Analysis
- Effects of the Addition of Grape Seed Powder on the Thermorheological Properties of Frying Batters
- Degradation of Vitamin E in Nanoemulsions during Storage as Affected by Temperature, Light and Darkness
- Effect of Different Drying Processes on the Physicochemical and Antioxidant Properties of Thinned Young Apple
- Mechanical and Sensory Evaluation of Noodles Incorporated with Betel Leaf Extract
- Mathematical Modeling of Thin-Layer Solar Drying of Eland (Taurotragus oryx) Jerky
- Thin-Layer Drying Model of Rambutan (Nephelium lappaceum L.) Kernel and Its Application in Fat Extraction Process
- Color Change Kinetics of Tea Leaves During Microwave Drying
- Influence of Blanching Pretreatment on the Drying Characteristics of Cherry Tomato and Mathematical Modeling
- Studies on Grinding and Extraction of Oil from Fenugreek (Trigonella foenum-graecum) Seed
- Effect of Drum Drying on Physico-chemical Characteristics of Dragon Fruit Peel (Hylocereus polyrhizus)
- Standardization of Curing and Microwave Drying of Turmeric (Curcuma longa) Rhizomes
- Shorter Communication
- Assessment and Separation of Angiotensin I-Converting Enzyme Inhibitory Peptides in Chinese Soypaste
