ISSN:
0138-4988
Keywords:
Life Sciences
;
Life Sciences (general)
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
A method for the photometric measurement of dehydrogenase activities with the redox dye phenazine methosulphate at a fixed biomass concentration was applied for the investigation of idiophasic product synthesis. It was found that in citric acid fermentation by Yarrowia lipolytica which is characterized by a well defined separation into tropho-and idiophase the magnitude of product synthesis rates corresponds to the level of dehydrogenase activity at the end of the trophophase. In cellulase production by Trichoderma reesei the tropho-and idiophase are not well defined but a rise of dehydrogenase activity in the course of the idiophase is likely to correspond to an increase of the cellulase formating rate. The significance of the relation of dehydrogenase activity to production rates for monitoring industrial fermentations is discussed.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/abio.370080112
