Results 211 to 220 of about 10,927 (260)

Microwave Vacuum Drying of Porous Media

2007 8th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2007
This paper deals with experimental results obtained on a laboratory scale dryer. Two porous media were dried, a packing of initially water saturated glass beads and a packing of initially unsaturated pharmaceutical granules. For the first one, the main parameter is permeability of the bed varying the beads diameter and for the second one it is the ...
M. Pantea, Carmen Molnar, D. Soproni, F.I. Hathazi, Laura Coroiu   +4 more
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Microwave and microwave-vacuum drying kinetics of field peas

2007 Minneapolis, Minnesota, June 17-20, 2007, 2007
Field pea (Pisum sativum L.) is a leguminous crop high in protein and complex carbohydrates and low in fat. Field pea is harvested at 18 to 20% moisture and must be dried to lower moisture contents for safe storage and grinding to be used in food applications. The drying kinetics of field pea using microwave, microwave-vacuum and convective drying were
null Anthony Opoku, null Lope G Tabil, null Venkatesh Meda, null Satya Panigrahi   +3 more
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Optimizing Drying Conditions for the Microwave Vacuum Drying of Enzymes

Drying Technology, 2011
The aim of this study was the methodological use of experimental planning for the optimization of microwave vacuum drying of enzymes using α-amylase as a model. A factorial in star designwas used to optimize the microwave vacuum–drying process, and the variables were power output and vacuum pressure.
Sérgio S. de Jesus, Rubens Maciel Filho
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PERFORMANCE EVALUATION OF VACUUM MICROWAVE DRYING OF EDAMAME IN DEEP-BED DRYING

The Proceedings of the 5th Asia-Pacific Drying Conference, 2007
The experiments of vacuum-microwave (VMW) drying on edamames in a deep bed was investigated and compared in terms of drying rate, final moisture content, and quality of dried products among the different heights of edamame in a deep bed. The results have shown that there was a moisture gradient from the top to the bottom of the bed during the vacuum ...
Hu, Q.-G., Zhang, M., Mujumdar, A.S., Xiao, G.-N., Sun, J.-C.   +4 more
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Effects of vacuum level and microwave power on rosemary volatile composition during vacuum–microwave drying

Journal of Food Engineering, 2011
The influence of the vacuum level and the microwave power on aroma compounds and sensory quality of Rosmarinus officinalis dehydrated by vacuum-microwave (VM) method was evaluated. VM drying kinetics consisted of two periods: linear until a critical point and exponential beyond that point.
Ángel Calin-Sánchez, Antoni Szumny, Adam Figiel, Klaudiusz Jałoszyński, Maciej Adamski, Angel Carbonell-Barrachina   +5 more
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Microwave-Vacuum Drying of Flax Fiber for Biocomposite Production

Journal of Microwave Power and Electromagnetic Energy, 2008
Flax fiber is one of the important bast fiber available in North America which has low density and good mechanical properties for reinforcing various polymers to develop industrial biocomposite. But the hydrophilic nature of the fiber leads to poor adhesion between the fiber and the polymer matrices which, in turn, leads to poor dimensional stability ...
Satyanarayan, Panigrahi, Anup, Rana, Venkatesh, Meda, Peter R, Chang   +3 more
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Microwave-Convective and Microwave-Vacuum Drying of Cranberries: A Comparative Study

Drying Technology, 2004
Abstract Two drying methods of cranberries (microwave-vacuum and microwave-convective) are reviewed, and their advantages and disadvantages regarding the quality of dried product and the process performance are presented. Mechanically and osmotically pretreated berries were subjected to drying and quality evaluation.
P. S. Sunjka, T. J. Rennie, C. Beaudry, G. S. V. Raghavan   +3 more
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MICROWAVE VACUUM DRYING KINETICS OF SOME FRUITS

Drying Technology, 1997
ABSTRACT Microwave vacuum drying kinetics of three fruits (namely, apple, kiwi and pear) were studied by introducing an one-parameter empirical mass transfer model, involving a characteristic parameter (drying constant), as a function of process variables. The model was tested with data produced in a microwave oven equipped with vacuum apparatus, using
C.T. Kiranoudis, E. Tsami, Z.B. Maroulis
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Application of microwave heating in vacuum for bagasse drying

2008 International Conference on Recent Advances in Microwave Theory and Applications, 2008
Conventional methods of bagasse drying are using natural air convection or using forced air. The use of microwave energy to dry bagasse is not tried so far. It could be advantageous due to possibility of heating and drying bagasse at a much faster rate than conventional methods, thereby controlling calorific value accurately and improving boiler ...
S.K. Shah, M.A. Joshi
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Studies on Microwave-Vacuum Drying of Foods

2014
Microwave-vacuum drying is one of the most promising techniques for drying foods with proper quality at a relatively low cost. The short drying times make this process cost-effective thus allowing large scale dried food production. As shown in this chapter, microwave-vacuum dried foods include bananas, grapes, pomegranates, carrots, seeds, gels, honey ...
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