Strain of acid-tolerant cyberlindnera jadinii and its application

Abstract

This application discloses an acid-tolerant Cyberlindnera jadinii yeast strain and its applications, belonging to the field of microbial technology. The Cyberlindnera jadinii yeast strain is Cyberlindnera jadinii C-12-2, which was deposited on Mar. 5, 2024, at the Guangdong Microbial Culture Collection Center, with the deposit number GDMCC NO: 64388. The Cyberlindnera jadinii yeast disclosed in this application can grow in a medium with a pH of 3.5, and its crude protein content can reach 70.02% after 24 hours of fermentation. The yeast strain disclosed in this application was obtained through heavy-ion irradiation mutagenesis followed by acid adaptation. It has been determined that the strain can grow in an acidic medium with a pH of 3.5, overcoming the growth limitation of the original strain at low pH values.

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