Affordable Access

Kinetic study of 2,3-butanediol production byKlebsiella oxytoca

Authors
Publisher
Elsevier B.V.
Publication Date

Abstract

Abstract Klebsiella oxytoca converts lactose to 2,3-butanediol under oxygen-limiting conditions. For an initial lactose concentration of 149.7 g l −1, a butanediol yield of 0.207 gg −1 was obtained with a corresponding productivity of 0.861 g l −1h −1 at an initial volumetric oxygen transfer coefficient of 93.4 h −1. Increasing lactose concentrations did not inhibit cell growth but indirectly influenced 2,3-butanediol yield and productivity by affecting specific oxygen availability to the cells. 2,3-Butanediol inhibited specific growth rate but had less influence on specific rate of product formation. However, at high lactose concentration, inhibition by 2,3-butanediol of growth was reduced. Oxygen transfer rate affected productivity, and cell and product yields. An optimum oxygen transfer rate is needed to maximize product yield and productivity at different initial lactose concentrations.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Kinetic study of 2,3-butanediol production byKlebs...

on Journal of Fermentation and Bi... Jan 01, 1990

Effects of aeration on 2,3-butanediol production f...

on Journal of Fermentation and Bi... Jan 01, 1989

Enhanced 2,3-butanediol production byKlebsiella ox...

on Bioresource Technology Jan 01, 2009

Development of an industrial medium for economical...

on Bioresource Technology Jan 01, 2009
More articles like this..