Use of sustainable chemistry to produce an acyl amino acid surfactant

In this paper, the use of surfactants for solubilization of hydrophobic organic dyes (mainly solvent and disperse dyes) has been reviewed. The effect of parameters such as the chemical structures of the surfactant and the dye, addition of salt and of polyelectrolytes, pH, and temperature on dye solubilization has been discussed. Surfactant self-assemble into micelles in aqueous solution and below the concentration where this occurs—the critical micelle concentration (CMC)—there is no solubilization. Above the CMC, the amount of solubilized dye increases linearly with the increase in surfactant concentration. It is demonstrated that different surfactants work best for different dyes. In general, nonionic surfactants have higher solubilization power than anionic and cationic surfactants. It is likely that the reason for the good performance of nonionic surfactants is that they allow dyes to be accommodated not only in the inner, hydrocarbon part of the micelle but also in the headgroup shell. It is demonstrated that the location of a dye in a surfactant micelle can be assessed from the absorption spectrum of the dye-containing micellar solution.

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“…[8,38]. The global production of surfactants was estimated to 12 M tons/year in 2008 with a growth rate of 2%–3% per year [39,40]. …”

Section: Surfactantsmentioning

confidence: 99%

Solubilization of Hydrophobic Dyes in Surfactant Solutions

2013

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“…It has been reported that the worldwide production of synthetic surfactants is over 15 million tons per year ( Van-Bogaert et al 2007 ) that are employed in different industrial sectors ranging from food processing, pharmaceutical, cosmetics, detergent production, environmental cleanup (bioremediation) and enhanced oil recovery. According to Reznik et al ( 2010 ), the worldwide production of synthetic surfactants per annum was 13 million tons in 2008, increased by 2 % in 2009 resulting to annual turnover of US$ 2,433 billion. The market was then expected to experience a continuous growth by 28 % from 2009 to 2012 and thereafter increase approximately by 3.5-4 %.…”

Section: Introductionmentioning

confidence: 99%

Production of Biosurfactants Using Eco-friendly Microorganisms

Uzoigwe

Ennis

Rahman

2014

Environmental Sustainability

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Pathogenicity of biosurfactant-producing microorganisms is currently raising some health, safety and environmental concerns. As a result, the industrial-scale production and application of biosurfactants as potential alternatives to the synthetic one is still an unachieved task. The production of biosurfactants using nonpathogenic/recombinant strains requires more attention and investigation for some advantages that includes the discovery of non-toxic biosurfactants suitable for all industrial applications, identifying new biosurfactant congeners with better inherent surfaceactive properties compared to that from pathogens and synthetic ones and the synthesis of biosurfactant without complex metabolic regulations. Although a number of nonpathogenic/recombinant, eco-friendly biosurfactant-producing strains have been documented, there is need for more research in this area focusing especially on improved biosurfactant production by these strains using optimisation processes and the discovery of new nonpathogenic/recombinant strains using molecular techniques for future sustainability.

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“…Surfactants have widespread importance for applications in diverse fields such as the detergent, personal care, textile, petrochemical, pharmaceutical and electronic industries for performing the desired function of cleaning, wetting, softening, foaming, emulsifying, etc. [1][2][3][4][5][6][7][8][9]. In recent years, interest has been generated to explore new types of surfactants having antimicrobial properties [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Evaluation of Surface and Biological Properties of Some Lactic Acid‐Based Anionic Surfactants

Reddy

Sujitha

Kumar

et al. 2016

J Surfact & Detergents

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In the present study, 11 lactic acid‐based anionic surfactants were synthesized and evaluated for their surface and biological activities. The synthesis involved the esterification of lactic acid with a range of fatty alcohols differing in chain length as well as in branching and unsaturation. The resultant ester was sulfonated by treatment with chlorosulfonic acid followed by salt formation with aqueous NaOH solution. The surface properties of all the synthesized surfactants were determined using surface tensiometry. Synthesized surfactants showed low critical micelle concentration (CMC) values and a decreasing trend with an increase in the alkyl chain length. Alkyl branching also led to a mild change in CMC values when compared with linear counterparts having the same number of carbon atoms, though such decreases or increases were observed to be dependent on the position and number of the branching. Some of the synthesized surfactants exhibited good antimicrobial and anti‐cancer activities against the tested microbial strains and cell lines.

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Use of sustainable chemistry to produce an acyl amino acid surfactant

Cited by 94 publications

References 27 publications

Solubilization of Hydrophobic Dyes in Surfactant Solutions

Solubilization of Hydrophobic Dyes in Surfactant Solutions

Production of Biosurfactants Using Eco-friendly Microorganisms

Synthesis and Evaluation of Surface and Biological Properties of Some Lactic Acid‐Based Anionic Surfactants

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