Abstract
The production of food and fodder yeast from sulfite waste liquor has two important significances;they are the elimination of a source of river corruptions by this waste, and the collection and utilization of waste. Particularly, the latter lies in the possibility of using dilute waste liquor as for the raw material of yeast production. It is necessary to device a special equipment for aerating culture, because of the violent foaming property of sulfite waste liquor. It can be said that the Waldhof type fermentor is the most favourable equipment for this purpose. But, when this fermentor is used in the commercial scale, many particular designs are necessary on the details of this equipment. Generally, Torula species is suitable for the culture. This yeast grows rapidly and in good yield, and possesses a pentose assimilating property and moreover contains high protein. But the cell of this yeast is rather small, a considerable energy is required in the centrifuging process. The drier is a twin type dram drier.
This dried yeast crop is favourable for the foodstuff and fodder.
