Journal
JOURNAL OF FOOD ENGINEERING
Volume 212, Issue -, Pages 29-37Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2017.05.011
Keywords
Wheat germ; Fluidization; Sorption isotherm; Physical particle characterization
Categories
Funding
- Consejo Nacional de Investigaciones Cientificas y Tecnicas [PIP11220120100184]
- Secretaria de Ciencia y Tecnologia of Universidad Nacional de Cordoba (SeCyT-UNC)
- Agencia Nacional de Promocion Cientifica y Tecnologica (PICT) [2327]
Ask authors/readers for more resources
Wheat germ is the embryo of de wheat seed, it contains a high tocopherol and protein content, and high quality proteins and fatty acids. Also, wheat germ has a considerable enzymatic activity that limits its shelf life. The aims of the study were to physically and sorptionally characterize wheat germ particles, select the more convenient model to describe the relationship between moisture content and water activity of wheat germ and to determine their design parameters of thermal fluidization process with air. The principal axes of the particle were measured by image analysis, and their dimensions and geometric parameters were calculated. Four isotherm models were fitted to experimental data. GAB model was the more accurate to explain the experimental data. The fixed bed density and the void fraction were measured. The fluid-dynamic studies permitted to determine laminar (277.46 +/- 17.48) and turbulent (7.79 +/- 0.69) coefficients of the Ergun equation and the minimum fluidization velocity (035 +/- 0.02 m/s). (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available