| 摘要 |
Provided are a method for producing a succinic acid-rich yeast which contains succinic acid at a higher concentration than the conventional yeasts, a succinic acid-rich yeast, and a succinic acid-rich yeast extract. The present invention relates to: a method for producing a yeast extract, said method being characterized by comprising extracting a yeast extract, via autolysis, from a yeast which has been cultured under such conditions as controlling the volumetric oxygen transfer coefficient (KLa) to 0.9-195 hr-1; a method for producing a yeast extract as described above, wherein said yeast has been grown under such conditions as controlling the respiration quotient to 1.3 or greater; a method for producing a yeast extract as described in any of the above, wherein the autolysis is conducted under such conditions as controlling the autolysis solution temperature to 30-55oC; and a yeast extract which is produced by a method as described in any of the above and has a succinic acid content of 3.0-30.0 wt% on a dry weight basis. |
