3results about How to "Promote catalysis" patented technology

A C-terminal truncated alginate lyase and its application. This invention belongs to the fields of bioengineering, genetic engineering, and enzyme engineering, and relates to a C-terminal truncated alginate lyase TY2 designed with molecular docking assistance, its encoding gene, recombinant vector, strain, and its application in the preparation of low-polymerization degree alginate oligosaccharides. Using wild-type MhAly6 as the parent, the truncation boundary was determined through structural prediction and molecular docking. A portion of the linker peptide was retained, and the C-terminal GH28 family domain was deleted to obtain the truncated form TY2. TY2 has approximately twice the specific activity of the wild-type enzyme, and even higher residual activity after incubation at 45°C for 1 hour, achieving a synergistic improvement in catalytic activity and thermal stability. + The relative enzyme activity reached 4.3 times that of the control group, which can degrade pretreated Sargassum powder. The product is mainly ΔDP2–ΔDP4 low-polymerization brown algae oligosaccharides, which are suitable for related enzymatic degradation and oligosaccharide preparation.

This invention belongs to the field of electrochemical catalysis technology, and specifically relates to a membrane electrode electrolytic cell flow channel structure for CO2 electroreduction. The flow channel structure is disposed within the electrolytic cell and includes a main flow channel inlet, a main flow channel outlet, and at least one 180° folding unit disposed between the main flow channel inlet and the main flow channel outlet. Each 180° folding unit symmetrically branches the incoming flow channel into two sub-flow channels, forming a bidirectional convection network. All sub-flow channels eventually converge to the main flow channel outlet. The multi-folding flow channel structure reduces the pressure in the CO2 gas path, facilitating the outflow of liquid products from the flow channel for collection and analysis. Furthermore, during the cell manufacturing process, a small amount of Ag is added through a melt-cooling process, which effectively reduces the temperature of the electrolyte during the reaction. This invention employs a multi-folding MEA flow channel, significantly improving the collection capacity of CO2 reduction products, thereby increasing the efficiency of CO2 conversion to carbon products.

The present invention relates to detergent compositions comprising protease variants and alpha-amylases or variants thereof. Furthermore, the present invention relates to methods of using the detergent compositions.