Journal
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
Volume 127, Issue -, Pages 236-240Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2017.12.006
Keywords
Bacteria; Biodegradation; Nitrogen; Surfactant; Wastewater
Funding
- Internal Grant Agency of Tomas Bata University in Zlin [IGA/FT/2016/012, IGA/FT/2017/003]
Ask authors/readers for more resources
Cocamidopropyl betaine (CAPB) is an amphiphilic surfactant commonly used in a variety of personal care products and in some technical applications. The aim of the study was to obtain bacteria that utilized CAPB from a sample of municipal activated sludge, and to investigate the possible role such bacteria performed in surfactant degradation. The CAPE. (300 mg l(-1)) degradation experiments involved the application of two isolated strains. Whilst tests in a mineral medium containing ammonium salt as a nitrogen source revealed almost complete mineralization of the compound in both strains during 4 days, the same process required more than 29 days of incubation under nitrogen-free conditions. Degradation assays and a series of growth tests with and without the source of nitrogen showed that Pseudomonas sp. FV proved to be the primary degrader of CAPB, capable of utilizing the alkyl chains of the surfactant. The other strain, Rhizobium sp. FM, ensured the degradation of intermediates originating from the primary biodegradation stage and, in the absence of ammonium salt, provided a supply of nitrogen to its microbial partner.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available