%0 Journal Article %T Propionic Acid Fermentation by Propionibacterium freudenreichii CCTCC M207015 with a Fibrous-bed Bioreactor
利用纤维床反应器固定化发酵生产丙酸 %A Xiaohai Feng %A Bo Wu %A Xiaobo Shen %A Hong Xu %A
冯小海 %A 吴波 %A 沈晓波 %A 徐虹 %J 微生物学报 %D 2008 %I %X The production of propionic acid by Propionibacterium freudenreichii CCTCC M207015 was investigated in a Fibrous-bed bioreactor (FBB). The FBB was constructed by packing spiral cotton fibrous and immobilized into a bioreactor. By applying this bioreactor to propionic acid fermentation, the propionic acid yield had a significant improvement and reached 20.41 g/L, compared with the cell-free culture of 14.58 g/L (40 g/L of glucose). At the same time, the glucose exhausting time decreased from 120 h to 60 h. Batch fermentations at various glucose concentrations were carried out with FBB. Based on the analysis of the time course of production, fed-batch fermentation was also applied to produce propionic acid with FBB, the maximal propionic acid yield reached 45.91 g/L, and the proportion of propionic acid to total acids was about 72.31%. %K fibrous-bed bioreactor %K Propionibacterium freudenreichii CCTCC M207015 %K propionic acid %K fed-batch fermentation
纤维床反应器 %K Propionibacterium %K freudenreichii %K CCTCC %K M207015 %K 丙酸 %K 补料发酵 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=A3C6BA55AB623B90FA9104CFFC826F3C&aid=60F737A3878DA197BC6CC1C1E6D22A88&yid=67289AFF6305E306&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=6A12B9FCEF71AE29&eid=E062BF8B95A95FD2&journal_id=0001-6209&journal_name=微生物学报&referenced_num=0&reference_num=0