CONCLUSION

In this study, xylAB operon was introduced into C. glutamicum SO26 to achieve the consumption of xylose for the production of L-ornithine. And then, we verified the AraE, the reduction in the degree of acetylation and the release of feedback inhibition of aspartic acid of PEPC, the addition of biotin and thiamine hydrochloride, the resulting strain C. glutamicum XAB03 has reached 41.5 g/L shaker flask output from glucose and xylose. This work also shows the possibility of making full use of lignocellulose for the synthesis of L-ornithine and lays the foundation for the further realization of industrialized strain production.