Patent ID: 11879122
Assignee: MIZKAN HOLDINGS CO., LTD.
Field: Biotechnology (Chemistry)
Classification: CPC C  A  G | IPC A  C

Claim 9:
10. A mutant strain of Bacillus subtilis var. natto having the following properties:
a single colony of the mutant strain cultured in a selective solid medium supplemented with biotin at a gas phase temperature of 49° C. for 48 hours has a region having a hue of yellow (Y), a value of 9 or more, and a chroma of 2 or less, as defined by the Munsell Color System, wherein a surface area of the region is 20% or less of the total surface area of the single colony; and
the number of the mutant strain spores is 1×107 spores/ml or more after culturing the mutant strain in a liquid medium for spore formation at a liquid temperature of 37° C.