Utilization of Crude Glycerol by Yarrowia lipolytica IMUFRJ 50678 in Bioproduct Production  

作　　者：Jamile Ribeiro Coelho de Lima Renata Oliveira da Rocha Calixto Lea Maria de Almeida Lopes Francisca Pessoa de Franca 

机构地区：[1]Chemistry Engineering Department, Chemistry School, Federal University of Rio de Janeiro, Rio de Janeiro 21941-909, Brazil [2]Institute of Macromolecules Professor Eloisa Mano, Federal University of Rio de Janeiro, Rio de Janeiro 21941-909, Brazil

出　　处：《Journal of Chemistry and Chemical Engineering》2013年第11期1087-1093,共7页化学与化工（英文版）

摘　　要：Transesterification is the most common production process for biodiesel. From this reaction, a glycerin phase is produced that is impure, thus lowering market value. However, because it is rich in carbon, it is an alternative for generating bioproducts with a higher added value through bioconversion by microorganisms. The aim of this study was to screen parameters, such as pH （4, 5, 6, 7 and 8） and the initial glycerol concentration at 30 ± ℃ with agitation at 150 rpm for bioemulsifier and lipid synthesis in a submerged medium by Yarrowia lipolytica IMUFRJ 50678 from crude glycerin. The best conditions for bioemulsifier production were 30 ± ℃ at pH： 6 with 50 g/L of initial substrate, which produced 2.7 g/L of lipids, from which the optimum 300.5 mg/L of triglycerides was produced over 48 h of microorganism growth.

关 键 词：Crude glycerol Yarrowia lipolytica BIODIESEL bioproducts. 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业] TE626.24[石油与天然气工程—油气加工工程]