STUDY ON FERMENTATION CONDITIONS OF A 1.3-PD HIGH-PRODUCTION STRAIN FROM E. AEROGENES / 微生物学通报

ABSTRACT

The fermentation conditions of high 1.3 -propanediol-producing strain E. aero-N-56 were determined in this Paper. The optimum conditions of producing 1.3-PD were initial pH 7.0, temperature 30℃, culture time 48 h, inoculum size 9% . Under the optimum conditions the 1.3-PD productivity reached up to 23.68 g/L?d; the 1,3-PD yield of E. aero-N-56 up to 47.36 g/L in 30 L fermentor.