Patents by Inventor Mei-Ching Yu

Mei-Ching Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing L-lactic acid
    Publication number: 20060234361
    Abstract: A method for producing L-lactic acid is disclosed, which comprises the following steps: (a) culturing spores of Rhizopus oryzae in a medium containing a carbon source and a nitrogen source, forming dispersed mycelia, (b) seeding said mycelia into a fermentation medium containing ammonia; (c) starting the fermentation, meanwhile, the pH value is controlled in a range of 4-5 and the concentration of ammonia is in a range of 0.05-5 g/L; and (d) extracting the L-lactic acid form the fermentation medium, wherein the Rhizopus oryzae is Rhizopus oryzae ATCC 9363.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 19, 2006
    Applicant: Tatung Company
    Inventors: Dey-Chyi Sheu, Kow-Jen Duan, Ching-Yi Wu, Mei-Ching Yu