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BioMed Research International
Volume 2013 (2013), Article ID 512495, 8 pages
Research Article

A Biosurfactant-Sophorolipid Acts in Synergy with Antibiotics to Enhance Their Efficiency

Biochemical Sciences Division, National Chemical Laboratory, Homi Bhabha Road, Pune Maharashtra 411008, India

Received 11 April 2013; Revised 22 July 2013; Accepted 2 August 2013

Academic Editor: Ramkrishna Sen

Copyright © 2013 Kasturi Joshi-Navare and Asmita Prabhune. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

The supplementary information contains (a) Dilution scheme for the assay of conjugative action of Sophorolipid and cephaclor against E. coli. The dilution scheme is similar to the one represented in Table 1. (b) HPLC chromatogram of the crude sophorolipid preparation which puts some light on the relative lactone: acid percent composition of the crude sophorolipid. (c) MALDI/MS spectrum of the sophorolipid preparation in which the peaks corresponding to prominent forms of oleic acid derived sophorolipid have been marked with arrows. Along with oleic acid derived sophorolipid, few more SL forms containing other fatty acids as hydrophobic tail have been listed in a table.

  1. Supplementary Material