Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 13, 2020 - September 16, 2020
Amended Foodstuff Recycling Law promote to reduce food wastes by the recycle and reuse of wasted foods, and various strategies have been tried to reduce useless abandonment. The process grinding them into powder is generally included in the recycle process of wasted foods, and it is important to minimize total energy cost. Well dried foods are sometimes hard to crush into fine powders. More serious problem is that those foods are generally polluted with bacteria, then the feasibility of the food recycle process depends on the disinfection work as well as the grinding performance. The sterilizing effect was found in a shock impact crushing, and the relation between the shock pressure and the sterilizing effect has been studied. In this study dry powdered foods were crushed by successive impacting loads and the sterilizing effect was examined precisely. It was found that the sterilizing performance could be higher by making a metal layer on the plastic impactor with low shock impedance.
