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Biosurfactant from urban wastes for detergents formulation: surface activity and washing performance
- Source :
- Aalborg University
- Publication Year :
- 2010
-
Abstract
- To promote biobased products for industry, six biosurfactants (BS) isolated from green and food urban residues aged under aerobic digestion for 0–60 days were investigated for their chemical composition, surface activity properties and detergent performance in fabric washing in comparison with commercial anionic and nonionic surfactants (CS). The BS exhibited a range of chemical composition and surface activity properties presumably related to their different biomass sources. Surface tension data for these substances correlated meaningfully with performance data in fabric washing. It was found that BS have similar performances as CS when used neat, but the 1:1 w/w BS–CS mixes are characterized by significant synergy. High sensitivity to water hardness and fabric yellowing were found to be the main deficiencies for the BS. However, both effects are minimized or are not critically evident when the BS are used together with CS and/or in common detergents formulations. The results indicate that when used above critical micellar concentration, no significant or critical performance differences are evident within the whole group of BS or between BS and CS. These facts encourage expectations for industrial production and real commercialization of BS as components of detergents formulations.
- Subjects :
- Chromatography
Chemistry
General Chemical Engineering
Humic acids
Biomass
Washing Performance
Pulp and paper industry
Urban Wastes
Surfaces, Coatings and Films
Surface tension
Biomass Residues
Fabric washing
Critical micelle concentration
Biosurfactants
Surface activity
Aerobic digestion
Physical and Theoretical Chemistry
Chemical composition
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Aalborg University
- Accession number :
- edsair.doi.dedup.....9cb584acf8a3f812c618e5596613f02f