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Fermentation 2017, 3(3), 32; doi:10.3390/fermentation3030032

Wheat and Sugar Beet Coproducts for the Bioproduction of 3-Hydroxypropionic Acid by Lactobacillus reuteri DSM17938

1
Chaire Agro Biotechnologies Industrielles (ABI)-AgroParisTech, 3 rue des Rouges Terres, F-51110 Pomacle, France
2
UMR 782 GMPA, AgroParisTech, Institut National de la Recherche Agronomique, Université Paris-Saclay, F-78850 Thiverval-Grignon, France
3
UMR 1145 GENIAL, AgroParisTech, Institut National de la Recherche Agronomique, Université Paris-Saclay, F-91300 Massy, France
*
Author to whom correspondence should be addressed.
Received: 9 June 2017 / Revised: 27 June 2017 / Accepted: 28 June 2017 / Published: 6 July 2017
(This article belongs to the Special Issue Carboxylic Acid Production)
View Full-Text   |   Download PDF [1090 KB, uploaded 6 July 2017]   |  

Abstract

An experimental design based on Response Surface Methodology (RSM) was used for the formulation of a growth medium based on sugar beet and wheat processing coproducts adapted to the cultivation of Lactobacillus reuteri (L. reuteri) DSM17938. The strain was cultivated on 30 different media varying by the proportions of sugar beet and wheat processing coproducts, and the concentration of yeast extract, tween 80 and vitamin B12. The media were used in a two-step process consisting of L. reuteri cultivation followed by the bioconversion of glycerol into 3-hydroxypropionic acid by resting cells. The efficiency of the formulations was evaluated according to the maximal optical density at the end of the growth phase (ΔOD620nm) and the ability of the resting cells to convert glycerol into 3-hydroxypropionic acid, a platform molecule of interest for the plastic industry. De Man, Rogosa, and Sharpe medium (MRS), commonly used for the cultivation of lactic bacteria, was used as the control medium. The optimized formulation allowed increasing the 3-HP production. View Full-Text
Keywords: Lactobacillus reuteri; agroindustrial coproducts; glycerol bioconversion; 3-hydroxypropionic acid Lactobacillus reuteri; agroindustrial coproducts; glycerol bioconversion; 3-hydroxypropionic acid
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Couvreur, J.; Teixeira, A.R.S.; Allais, F.; Spinnler, H.-E.; Saulou-Bérion, C.; Clément, T. Wheat and Sugar Beet Coproducts for the Bioproduction of 3-Hydroxypropionic Acid by Lactobacillus reuteri DSM17938. Fermentation 2017, 3, 32.

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