生物英文文献

生物英文文献内容摘要：

aper. Paste to improve the hardness and strength of paper, enhanced erasable paper, and is a good paper coating. When the paper through two rolls, the starch slurry is added the paper. The process temperature was controlled at 45 ~ 6O ℃, need a stable viscosity of starch. Grinding can also be controlled according to different grades of paper starch viscosity. Nature of the starch concentration is too high for the sizing of paper, you can use part of αamylase degradation of starch to adjust. Application of detergents in the enzyme is a ponent of modern highefficiency detergents. Enzymes in detergents in the most important function is to make detergents more modest sound. Automatic dishwasher detergents early is very rough, easy to eat when the body hurts, and on ceramics, wood tableware can also cause damage. αamylase was used from 1975 to washing powder. Now, 90% of the liquid detergents contain an amylase, and automatic dishwasher detergents αamylase on demand is also growing. α 1 amylase ca2 + is too sensitive to low ca2 + in the stability of poor environment, which limits an amylase in the remover in. And, most of the wildtype strains produced an amylase on raw materials as one of the oxidants detergents are too sensitive. Keep household detergents, this limitation by increasing the number of process steps can be improved. Recently, two major manufacturers of detergents NovozymesandGcoreInternational enzyme protein technology has been used to improve the stability of amylase bleaching. They leucine substitution of Bacillus licheniformis αamylase protein in the first 197 on the methionine, resulting in enzymes of the oxidant ponent of resistance increased greatly enhanced the oxidation stability of the enzyme stability during storage better. The two panies have been pushing in the market these new products. Pharmaceutical and clinical chemical analysis with the continuous development of biological engineering, the application of amylase involved in many other areas, such as clinical, pharmaceutical and analytical chemistry. Have been。