| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Variety of powdered food products are agglomerated to granule form to prevent lumping. Aqueous solutions of polysaccharides are usually added to the powder as binder for the granulation of food materials. Reducing the amount of binder expectedly shortens the processing time for the granulation and successive drying, which leads the improvement of process efficiency and product quality. In this study, the effect of electrostatic charge of binder droplets on the granule forming process in fluidized bed was investigated by applying electrostatic induction to a spraying nozzle for binder solution. The necessary amount of binder solution tended to decrease when the binder droplets were charged in opposite polar to the powder materials. However it was clarified that the electrostatic charge of the powder materials were unstable during the granulation process, hence controlling of powder charge is necessary for the further improvement of the granulation process using electrostatic force.
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