This work reports detergents production using biological surfactants, microbiologically synthesized, and compares its foaming power and emulsification capacity to those presented by a petroleum based surfactant. Both ...This work reports detergents production using biological surfactants, microbiologically synthesized, and compares its foaming power and emulsification capacity to those presented by a petroleum based surfactant. Both used microorganisms were capable to produce surfactants, been able to emulsify oil/water mixtures and cause decrease of surface tension of water. The biosurfactant produced from Yarrowia lipolytica has a critical micelle concentration lower than that obtained from Pseudomonas aeruginosa （10 and 30 mg·Lt, respectively）, but the later showed better results in foaming power and emulsification experiments, similar to the synthetic detergent.展开更多
加拿大铀生产水平在萨斯喀彻温省持续增长,如;McClean Lake选矿厂的许可生产能力在2001年增长了大约33％(达到3077t U)。McArthur River矿山生产持续急剧上升达到其年许可生产能力6900 t U以上,2001年生产了6639 t U。在Cigar Lake进行...加拿大铀生产水平在萨斯喀彻温省持续增长,如;McClean Lake选矿厂的许可生产能力在2001年增长了大约33％(达到3077t U)。McArthur River矿山生产持续急剧上升达到其年许可生产能力6900 t U以上,2001年生产了6639 t U。在Cigar Lake进行着试验性的采矿和开发,预期最早在2005年开始生产。展开更多
文摘This work reports detergents production using biological surfactants, microbiologically synthesized, and compares its foaming power and emulsification capacity to those presented by a petroleum based surfactant. Both used microorganisms were capable to produce surfactants, been able to emulsify oil/water mixtures and cause decrease of surface tension of water. The biosurfactant produced from Yarrowia lipolytica has a critical micelle concentration lower than that obtained from Pseudomonas aeruginosa （10 and 30 mg·Lt, respectively）, but the later showed better results in foaming power and emulsification experiments, similar to the synthetic detergent.
文摘加拿大铀生产水平在萨斯喀彻温省持续增长,如;McClean Lake选矿厂的许可生产能力在2001年增长了大约33％(达到3077t U)。McArthur River矿山生产持续急剧上升达到其年许可生产能力6900 t U以上,2001年生产了6639 t U。在Cigar Lake进行着试验性的采矿和开发,预期最早在2005年开始生产。
