攪拌造粒および乾式粉体コーティングによる有機系脱酸素剤の作製

抄録

Oxygen absorber is subsidiary packaging material which can prevent the deterioration of foods caused by oxidizing and molding. Oxygen absorber is principally classified into two groups according to material; inorganic type or organic type. It is reported that one of the organic oxygen absorber is fabricated from the mineral carrier impregnated with glycerol and alkaline agent.

In this study, core-shell organic oxygen absorber was fabricated by one pot process using mixing agitator. In the first step, core particles containing glycerol for oxygen-absorbing materials were obtained by agitation granulation method. In the next step, shell layer was formed on the core particle by coating of hydrophilic silica. Quantitative analysis of shell layer by cross-sectional energy dispersive X-ray spectroscopy (EDX) indicated that oxygen-absorbing materials migrated from core to silica shell layer which has high surface areas, resulting in the improvement of oxygen absorbing performance.