Abstract
Thin-layer air impingement drying kinetics of American ginseng slices were investigated under different drying temperatures (35, 40, 45, 50, 55, 60, and 65°C), air velocities (3, 6, 9, and 12 m/s), and sample thicknesses (1, 2, 3, and 4 mm). Results indicated that the drying time is more significantly affected by drying temperature followed by sample thickness and air velocity. Drying rate curves illustrated that the whole drying process happened in the falling rate period. Additionally, from initial drying to the moisture content of about 0.5 kg/kg, the drying rate increased with the increase of drying temperature and air velocity or decreased with the increase of sample thickness. The moisture effective diffusivity (Deff) was determined both neglecting shrinkage and considering shrinkage. The drying activation energy of American ginseng slices was 46.64 kJ/mol determined by Arrhenius relationship. The moisture effective diffusivity and drying activation energy of American ginseng slices were compared to other biomaterials and related issues were also discussed. The current work is useful for designing air impingement drying system, evaluating and saving energy consumption of American ginseng slices.
Funding statement: Funding: This research is supported by the National Natural Science Foundation of China (No. 31201436), the Chinese Universities Scientific Fund (No. 2011JS018), and the Project in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period.
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©2015 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical Solution of a Nonlinear Diffusion Model for Soybean Hydration with Moving Boundary
- Simulation and Performance of a Solar Drying Unit with Storage for Aromatic and Medicinal Plants
- Preparation of Nano-curcumin with Enhanced Dissolution Using Ultrasonic-Assisted Supercritical Anti-solvent Technique
- Effect of Various Concentration of β-Cyclodextrin Inclusion Complexes Containing trans-Cinnamaldehyde by Molecular Self-Assembly
- Effects of Amount of Batter in Baking Cup on Muffin Quality
- Influence of Tapioca Starch on Thermal Properties of Wheat Flour-Based Batter and Quality of Fried Battered Chicken Wingsticks
- Clarification of Date Syrup by Activated Carbon: Investigation on Kinetics, Equilibrium Isotherm, and Thermodynamics of Interactions
- Changes in Some Quality Properties of Kefir during Storage and Inhibition Effect of Water Soluble Extracts on Angiotensin-I Converting Enzyme Purified by Human Plasma
- Drying Characteristics and Assessment of Physicochemical and Microstructural Properties of Dried Culinary Banana Slices
- Multi-Objective Optimization of the Pasteurization Process of Pumpkin Cubes Packaged in Glass Jars
- Mathematical Modeling of Thin-Layer Solar Drying for Yarrow, Coriander and Hollyhock
- Shorter Communication
- Drying Kinetics of American Ginseng Slices in Thin-layer Air Impingement Dryer
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical Solution of a Nonlinear Diffusion Model for Soybean Hydration with Moving Boundary
- Simulation and Performance of a Solar Drying Unit with Storage for Aromatic and Medicinal Plants
- Preparation of Nano-curcumin with Enhanced Dissolution Using Ultrasonic-Assisted Supercritical Anti-solvent Technique
- Effect of Various Concentration of β-Cyclodextrin Inclusion Complexes Containing trans-Cinnamaldehyde by Molecular Self-Assembly
- Effects of Amount of Batter in Baking Cup on Muffin Quality
- Influence of Tapioca Starch on Thermal Properties of Wheat Flour-Based Batter and Quality of Fried Battered Chicken Wingsticks
- Clarification of Date Syrup by Activated Carbon: Investigation on Kinetics, Equilibrium Isotherm, and Thermodynamics of Interactions
- Changes in Some Quality Properties of Kefir during Storage and Inhibition Effect of Water Soluble Extracts on Angiotensin-I Converting Enzyme Purified by Human Plasma
- Drying Characteristics and Assessment of Physicochemical and Microstructural Properties of Dried Culinary Banana Slices
- Multi-Objective Optimization of the Pasteurization Process of Pumpkin Cubes Packaged in Glass Jars
- Mathematical Modeling of Thin-Layer Solar Drying for Yarrow, Coriander and Hollyhock
- Shorter Communication
- Drying Kinetics of American Ginseng Slices in Thin-layer Air Impingement Dryer