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. 2020 Jul 29;8:861. doi: 10.3389/fbioe.2020.00861

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Copyright © 2020 Chopra, Bobate, Rahi, Banpurkar, Mazumder and Satpute.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Measurement of surface tension to determine the stability of biosurfactant derived from Pseudomonas aeruginosa RTE4. (A) At different temperature. (B) At different pH. (C) Determination of ionic character for BS derived from P. aeruginosa RTE4 using agar plate double diffusion assay against Cetyltrimethyl ammonium bromide (CTAB-cationic nature). Black colored arrow indicates line of precipitation formed between anionic (BS from RTE4) cationic (CTAB) pair.