Laundry Detergents

Smulders, Eduard; Rähse, Wilfried; Rybinski, Wolfgang von; Steber, Josef; Sung, Eric; Wiebel, Frederike A.

doi:10.1002/3527600450

Cited by 57 publications

(34 citation statements)

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“…These findings are comparable with those in previous reports [15]. In liquid detergent formulation preparation alcohols like ethanol, glycerol, and 1,2-propanediol are used as solubilizers [57]. A higher substrate solubility and capability to alter the substrate specificity are the main advantages of organic solvent-stable proteases [58].…”

Section: Effect Of Organic Solventssupporting

confidence: 89%

Detergent‐Compatible Robust Alkaline Protease from Newly Isolated Halotolerant Salinicoccus sp. UN‐12

Mokashe

Chaudhari

Patil

2017

J Surfact & Detergents

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Currently, enzyme‐containing blended detergent preparations are favored in the detergent industry. The detergent compatibility of an enzyme depends on its robustness to withstand harsh operating conditions and maintain efficient functioning in the presence of various surfactants and detergents. Alkaline proteases from halotolerant microbes having the capability to work in demanding environments are desirable for their application in the detergent industry. The protease secreted by a halotolerant soil isolate Salinicoccus sp. UN‐12 was evaluated for its suitability in detergent formulations. The studied enzyme is an alkaline serine protease (63 kDa) with an optimum temperature of 55 °C and optimum pH of 8.5. The protease was purified 17‐fold with a 4% yield. The protease was active in NaCl (up to 4 mol) and showed enhanced activity in the presence of CaCl2, KCl, and MnCl2. In addition, the proteolytic activity was sustained in the presence of various organic solvents, cyclodextrin, disodium cocoamphodiacetate, ionic liquids, hydrotropes, and ultrasound. This report is the first to document the multifarious robustness and novel attributes of a protease secreted by the newly isolated Salinicoccus sp. UN‐12. The protease‐detergent formulation efficiently removes blood, egg, grass, and tomato sauce stains. This protease is now available for efficient and eco‐friendly applications in the detergent industry.

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Section: Effect Of Organic Solventssupporting

confidence: 89%

Detergent‐Compatible Robust Alkaline Protease from Newly Isolated Halotolerant Salinicoccus sp. UN‐12

Mokashe

Chaudhari

Patil

2017

J Surfact & Detergents

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“…However, a typical formulation of liquid softener may also contain nonionic surfactant, antibacterial and preservative agents, dyes, and fragrances [19]. New data and information provided by this work completes previous studies of systems with T1 surfactant [16,20] and contributes relevant information for scientific research and industrial application.…”

Section: Introductionsupporting

confidence: 52%

“…In the detergent industry, however, viscous concentrated formulations are often undesirable [18]. For this reason, certain viscosity-reducing agents such as salt are added to these formulations in order to be applied in fabric softener production, thus enabling the control of the mixing operation during their production and easy handling [19].…”

Section: Introductionmentioning

confidence: 99%

Rheological and Microstructural Behavior of a Model Concentrated Fabric Softener

Calero

Alfaro

García

et al. 2011

Chem. Eng. Technol.

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Shear-induced microstructural transitions in aqueous systems of a cationic commercial esterquat-type surfactant used in concentrated fabric softeners were rheologically and microscopically characterized. Binary (surfactant/water) and ternary (surfactant/CaCl 2 /water) systems were studied. The obtained flow curves demonstrated the shear-thickening behavior in ternary systems at high shear rates, provoked by shear-induced transitions from surfactant bilayers to multilamellar vesicles. This fact was confirmed by hysteresis-loop experiments which proved that a critical shear rate was required to observe apparent antithixotropic behavior in the ternary systems. Start-up flow tests indicated that the increase of shear stress with shear time was more marked as the shear rate was increased. Finally, a comparative aging study of ternary systems with a surfactant used in concentrated fabric softeners and the ternary systems with a surfactant utilized in diluted and semiconcentrated fabric softeners was performed.

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“…Enzyme stability in the presence of detergent ingredients, such as surfactants, builders and activated bleach, etc. is crucial for its use in detergent formulations [35]. The proteolytic activity of different species filamentous fungi in different growth medium is well studied.…”

Section: Resultsmentioning

confidence: 99%

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

Jakovljević

Stojanovic

Vrvić

2015

CI&CEQ

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Article Highlights• T. harzianum isolated from industrial wastewater was tested to biodegradation of detergent • Chemical and biochemical parameters examined during fungal growth in submerged fermentation • The fungus decomposed 74.24% of detergent during 16 days which was confirmed by MBAS assay • Alkaline protease activity in presence of detergent was enhanced by 128% compared to control AbstractThe potential application of fungus Trichoderma harzianum Rifai in biodegradation of commercial detergent (Merix, Henkel, Serbia) was the focus of this study. The fungus was isolated from wastewater samples of the Rasina River, downstream from where the industrial wastewaters of the plant Henkel (Kruševac, Serbia) discharge into the river. The fungus was cultivated in liquid growth medium by Czapek with addition of detergent at a concentration of 0.3% during 16 days. Analysis of fermentation broth evaluated the chemical and biochemical changes of pH, redox potential, activity of alkaline and acid invertase as well as activity of alkaline protease. In addition, the influence of detergent on fungal growth and total dry weight biomass was determined. At the same time, detergent disappearance in terms of methylene blue active substances in the medium was measured. The detergent at a concentration of 0.3% influenced significant decrease of pH value and increase of redox potential. The detergent showed inhibitory effect on acid invertase activity and stimulatory effect on alkaline invertase and protease activity. The fungus decomposed about 74.24% of tested detergent during 16 days, but total dry weight biomass reduced about 20% in relation to control.

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Laundry Detergents

Cited by 57 publications

References 0 publications

Detergent‐Compatible Robust Alkaline Protease from Newly Isolated Halotolerant Salinicoccus sp. UN‐12

Detergent‐Compatible Robust Alkaline Protease from Newly Isolated Halotolerant Salinicoccus sp. UN‐12

Rheological and Microstructural Behavior of a Model Concentrated Fabric Softener

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

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