The innovative use of an advanced microscopic technique that visualizes and quantifies how enzymes work in laundry detergents to better clean cotton fibers is at the heart of research honored with the The Soap and Detergent Association (SDA) Distinguished Paper Award.
Sponsored by SDA and the Surfactants and Detergents Division of the American Oil Chemists’ Society (AOCS), the award honors the best technical paper published in 2007 in the Journal of Surfactants and Detergents (10:211-218). The Award was presented during the 99th AOCS Annual Meeting and Expo in Seattle, Washington.
Scientists from Novozymes and two leading Swedish research institutions authored the honored paper, “Imaging the Detergency of Single Cotton Fibers with Confocal Microscopy: the Effect of Surfactants and Lipases.”
The research utilized a specialized biophysical microscopy technique (known as fluorescence confocal laser scanning microscopy) to visualize and quantify the effects of a new commercial lipase (lipid degrading enzyme) in assisting the detergency process of removing fats and oils from cotton fibers.
This work is the fruit of a successful collaboration between Novozymes and the two Swedish institutions, Royal Institute of Technology (KTH) and Institute for Surface Chemistry Institute (YKI), with the primary aim of understanding deeper the dynamics of enzymes in a wash process where they interact with detergent components and the fabric/soil load.
One of the major challenges in modern biotechnology is to generate and select relevant biological diversity (in this case enzyme variants) which create value in the application of a customer. This research helped guide scientists’ understanding of the structure/function biophysical properties of the enzyme and how they can be optimized under conditions of use.
“In this research, we created a model system for a wash process to study how the removal of fats and oils from fabric is influenced by the presence of LipexTM, a novel detergent lipase from Novozymes,” said Novozymes Senior Manager Thomas Callisen, one of the honored researchers. “Our microscopy technique allows us, in real time, to zoom in on what happens at the level of single fibers.
“We observe how an oily soil primarily rolls up – at the oil/fiber interface – and detaches from the surface, whereas a more solid-like fatty soiling is found to leave the fabric via necking of emulsion particles from the fat/liquid interface.”
Callisen added that the experiments showed that the lipase – by converting the lipid soil into more water soluble components – accelerates and increase the degree of removal of fats and oils from the fabric surfaces.
“We find that the beneficial effects of the lipase technology are most pronounced in the case of the tougher-to-remove fatty soils,” said Callisen. “As discussed and concluded in our paper, these results corroborate and add further detail to our understanding of the process of enzymatic detergency by lipases.”
Besides Mr. Callisen (who is based in Bagsvaerd, Denmark), the honored researchers include Andreas Sonesson and Ulla Elofsson of the Institute for Surface Chemistry in Stockholm; and Hjalmar Brismar of the Royal Institute of Technology, Stockholm.
The Soap and Detergent Association (http://www.cleaning101.com), the Home of the U.S. Cleaning Product and Oleochemical Industries®, is the non-profit trade association representing manufacturers of household, industrial, and institutional cleaning products, their ingredients and finished packaging; oleochemical producers; and chemical distributors to the cleaning product industry. SDA members produce more than 90 percent of the cleaning products marketed in the U.S. The SDA is located at 1500 K Street, NW, Suite 300, Washington, DC 20005.
Brian Sansoni | newswise
Newly discovered bacteria-binding protein in the intestine
08.12.2016 | University of Gothenburg
The balancing act: An enzyme that links endocytosis to membrane recycling
07.12.2016 | National Centre for Biological Sciences
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Physics and Astronomy
08.12.2016 | Health and Medicine
08.12.2016 | Life Sciences