Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4091
Title: 13C-NMR determination of simultaneous xylose and glucose fermentation by a newly isolated strain (G11) of Klebsiella planticola
Authors: Rossi, Claudio 
Marchettini, Nadia
Donati, Alessandro 
Medaglini, Donata
Valassina, Marcello
Bastianoni, Simone
Cresta, E.
Issue Date: 1995
Project: None 
Journal: BIOMASS & BIOENERGY
Abstract: 
In vitro NMR techniques and substrates selectively enriched with C-13 were used to follow the step-by-step metabolism of glucose and xylose, on their own or as mixed substrates in the ratio as they occur in hydrolysates from hemicellulose. The organism used was a newly isolated strain of Klebsiella planticola isolated from soil where maize has been cultivated for 30 years. Results suggest that glucose is converted to pyruvate via the Embden-Meyerhof pathway and then to lactate and ethanol. No evidence of 2,3-butandiol or formate metabolism was observed. This organism had a higher rate of uptake of xylose than previously studied microorganisms, resulting in ethanol, lactate, acetate succinate and formate as end products. Xylose metabolism in K. planticola G11, unlike that reported for many other organisms, was not inhibited by glucose. The addition of glucose, after 2 h of xylose fermentation, did not change the rate of xylose metabolism.
Description: 
36536
URI: http://hdl.handle.net/20.500.12779/4091
ISSN: 0961-9534
DOI: 10.1016/0961-9534(95)00005-R
Appears in Collections:Publications

Show full item record

Page view(s)

14
Last Week
0
Last month
8
checked on May 8, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.