ISSN:
0006-3592
Keywords:
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Ferrocyanide-treated beet molasses was fermented in fully baffled mechanically agitated, 2.5-liter, tank-type fermenters using pellets of Aspergillus niger grown in shake flasks as an inoculum. The object of the study was to adapt the fermentation method previously developed in an unstirred tower-type fermenter to a conventional tank-type fermenter. Under selected conditions of stirring (agitator speed 400-700 rpm) and sparging (medium porosity sintered disk), high yields of citric acid (8.6% citric acid, 70% conversion of available sugar) were obtained in 140 hr. of fermentation. There was little relation between citric acid yield and aeration conditions in the fermenter as judged by mash viscosity measurements and sulfite oxidation studies.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bit.260050304
