Patents Examined by Deborak K. Ware
  • Carotenoid producing culture using Nespongiococcum excentricum
    Patent number: 5437997
    Abstract: A culture for the production of xanthophylls comprising Nospongiococcum excentricum ATCC 40335 and mutants thereof. The culture having a dry cell weight xanthophyll content of at least about 0.65% and being capable of growing to a cell density of greater than about 40 grams per liter. The culture also comprising: carbon, phosphate, sulfate, iron, magnesium, and nitrogen.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: August 1, 1995
    Assignee: Universal Foods Corporation
    Inventors: Hans H. Liao, Richard D. Medwid, Donald L. Heefner, Kathleen S. Sniff, Randal A. Hassler, Michael J. Yarus