PURPOSE: To prepare high-quality vinegar in high efficiency, suspending carrier membranes vertically in a fermentation tank, letting the MOROMI of vinegar to flow down in the membrane and to contact with acetobacters supported by the carrier membrane.
CONSTITUTION: Acetobacters are attached to the carrier membrane made of a porous hydrophilic nonwoven fabric, etc. having a thickness of about several mm. The top of the carrier membrane 2 is attached to the MOROMI tank 3 placed above the fermentation tank 1, and the membrane is suspended vertically in the tank 1. A vinegar MOROMI (an unrefined alcoholic fermentation product containing alcohol and obtained by the fermentation of saccharified liquors, potatoes, etc.) is supplied through the pipe 5 to the tank 3, soaked into the carrier membrane, and allowed to flow down. In the course of flowing-down, the MOROMI is subjected to the acetic acid fermentation by contacting with the acetobacters to obtain vinegar. When the acetic acid fermentation is incomplete by a single passage through the membrane 2, the dripped acetic acid MOROMI is returned through the discharge pipe 6, the pump 7 and the supply pipe 5 to the MOROMI tank 3.
JPS52122687A | 1977-10-15 | |||
JP15000553Y1 | ||||
JP33003798A |