biostudies-literatureSgobba EBundesministerium für Wirtschaft und Energie2046https://www.ebi.ac.uk/biostudies/studies/S-EPMC6165865biostudies-literatureUnknown9<i>Corynebacterium glutamicum</i> is used for the million-ton-scale production of food and feed amino acids such as L-glutamate and L-lysine and has been engineered for production of carotenoids such as lycopene. These fermentation processes are based on sugars present in molasses and starch hydrolysates. Due to competing uses of starch and sugars in human nutrition, this bacterium has been engineered for utilization of alternative feedstocks, for example, pentose sugars present in lignocellulosic and hexosamines such as glucosamine (GlcN) and <i>N</i>-acetyl-D-glucosamine (GlcNAc). This study describes strain engineering and fermentation using <i>N</i>-acetyl-D-muramic acid (MurNAc) as non-food-competing feedstock. To this end, the genes encoding the MurNAc-specific PTS subunits MurP and Frontiers in microbiologyProduction of Food and Feed Additives From Non-food-competing Feedstocks: Valorizing <i>N</i>-acetylmuramic Acid for Amino Acid and Carotenoid Fermentation With <i>Corynebacterium glutamicum</i>.PMC6165865ZIM KF2969003SB2Wendisch VFBlobaum LSgobba EfalseProduction of Food and Feed Additives From Non-food-competing Feedstocks: Valorizing <i>N</i>-acetylmuramic Acid for Amino Acid and Carotenoid Fermentation With <i>Corynebacterium glutamicum</i>.<i>Corynebacterium glutamicum</i> is used for the million-ton-scale production of food and feed amino acids such as L-glutamate and L-lysine and has been engineered for production of carotenoids such as lycopene. These fermentation processes are based on sugars present in molasses and starch hydrolysates. Due to competing uses of starch and sugars in human nutrition, this bacterium has been engineered for utilization of alternative feedstocks, for example, pentose sugars present in lignocellulosic and hexosamines such as glucosamine (GlcN) and <i>N</i>-acetyl-D-glucosamine (GlcNAc). This study describes strain engineering and fermentation using <i>N</i>-acetyl-D-muramic acid (MurNAc) as non-food-competing feedstock. To this end, the genes encoding the MurNAc-specific PTS subunits MurP and 2018-01-01T00:00:00Z20182025-05-31T23:32:18.88Z2025-05-31T23:32:18.88ZS-EPMC61658653031955410.3389/fmicb.2018.02046