WITHDRAWN: Chemical structures and biological activities of rhamnolipids produced by Pseudomonas aeruginosa B189 isolated from milk factory waste

The publisher regrets that this article is an accidental duplication of an article that has already been published in Bioresource Technol., 97 (2006) 2457–2461, doi:10.1016/j.biortech.2005.10.029. The duplicate article has therefore been withdrawn.