Kvasny Prum. 1971; 17(7): 145-150 | DOI: 10.18832/kp1971022

Recent progress towards higher yields of yeast proteins made from sulphite waste liquor.Peer-reviewed article

J. BARTA

The authors describes first the composition of various kinds of sulphite waste liquors, evaluating them from microbiological point of view as nutritive media and taking into account the results of recent research works. Several sorts of yeast suitable for fermenting sulpite liquors have been isolated from natural substrates and their efficiency compared in a series of tests. The best results gave a culture which was identified as Cryptococcus diffluens. It can assimilate a substantially wider range of organic compounds present in liquors than other kinds of yeast which are used at present as e.g. Torulopsis or Candida. Modern fermentors  of Vogelbusch and Chemap system installed in a pilot plant ensured very high yields od dry yeast matter, viy. 1,75 - 2,25 kg/hr per 1 m³of fermentor capacity. The yields which can be reached by using conventional methods do not exceed 0,5-0,75 kg/hr. The efficiency of new fermentors results from their aeration system, efficient forth suppression and automation of the process.
(In Czech, English summary only)

Keywords: yeast proteins, sulphite waste liquor

Published: July 1, 1971