나노기술을 이용하는 식품산업

초록

If dietary fibers used in food and oriental medicine industry are processed using a twin screw extruder and ultra fine grinder, dietary fibers with a particle size below 10 μm, which easily dissolve in water and form colloidal dispersed phase, can be mass produced. A twin screw extruder can heat, mix, separate, compress, orientate, expand and form dietary fibers through one process under high shear and high temperature conditions. An ultra fine grinder equipped with centrifugal classifier can break the cell wall of extruded fibers under high shear stress and grind the extruded fiber into super fine powder of 0.1 to 10 μm in particle size at -20 to 40oC, so that the solubility of fiber is improved with the increased hydrophilic colloid. The new technology to obtain nano-scaled materials will be a substantial unit operation with high potential in food industry.

키워드