With ammonia water as nertralizer,L-lactic acid batch and fed-batch fermentation by ammonia resistant mutant Rhizopus oryzae JS-N02-02 were conducted in a 15L fermentor.

• 02进行15L自动发酵罐的分批和分批补料发酵及其发酵动力学的初步研究,结果表明,降低起始糖浓度,产酸期补糖可明显提高菌体L-乳酸比生产速率和耗糖产酸能力,提高L-乳酸产量和纯度,降低残糖。