Method for improving glutamic acid conversion rate by feedback regulation

The invention belongs to the technical field of biological fermentation, and discloses a method for improving the glutamic acid conversion rate by feedback regulation, which is based on pH feedback feed regulation, takes glucose as a carbon source, takes ammonia water as an inorganic nitrogen source and a pH regulator, effectively controls the glucose concentration in fermentation liquor, is beneficial to consumption and utilization of glucose by strains, and improves the glutamic acid conversion rate. Meanwhile, the glucose concentration has a certain influence on lactic acid generation, so that the concentration of fermentation byproducts mainly comprising lactic acid is reduced, and the conversion rate of glucose can be increased. 本发明属于生物发酵技术领域，公开了利用反馈调节提高谷氨酸转化率的方法，本发明方法基于PH反馈补料调节，以葡萄糖为碳源、以氨水为无机氮源和pH调节剂，有效控制发酵液中葡萄糖浓度，有利于菌种对葡萄糖的消耗利用，同时利用葡萄糖浓度对乳酸生成有一定影响，故以乳酸为主的发酵副产物浓度下降，可以提高葡萄糖的转化率。