公开(公告)号：US20180327705A1

公开(公告)日：2018-11-15

申请号：US16019681

申请日：2018-06-27

Applicant: AJINOMOTO CO., INC.

Inventor： Shinichiro Matsuka ,  Nobuhisa Nitta

IPC: C12M1/04 ,  C12M1/00 ,  C12P5/02

CPC classification number: C12M27/04 ,  C12M1/08 ,  C12M23/02 ,  C12P5/00 ,  C12P5/026

Abstract: A gas stirring fermentation device has excellent mixing performance of a culture liquid and is applicable to aerobic culture requiring a high demanded oxygen amount. The gas stirring fermentation device includes a culture tank, a draft tube located inside the culture tank, and a gas supply pipe supplying gas to the inside of the culture tank, in which the gas supply pipe is provided with a gas discharge part made of a sintered metal film, and a culture liquid in the culture tank can be stirred by the gas discharged from the gas discharge part.