| Home>Cooperate |
|
COOPERATION |
|
|
|
|
|
|
|
|
|
|
 |
 |
|
Enzymes are biological molecules that catalyze chemical reactions. Like all |
| |
catalysts, enzymes work by lowering the activation energy for a reaction
|
| |
thus dramatically increasing the rate of the reaction. |
| |
|
| |
|
As a result, products are formed faster and reactions reach their equilibrium state |
| |
|
more rapidly. Most enzyme reaction rates are millions of times faster than those |
| |
|
of comparable un-catalyzed reactions. As with all catalysts, enzymes are not |
| |
|
consumed by the reactions they catalyze, nor do they alter the equilibrium of |
| |
|
these reactions. However, enzymes do differ from most other catalysts in that |
| |
|
they are highly specific for their substrates. |
| |
|
|
| |
|
As early as the late 17th and early 18th centuries, the digestion of meat by |
| |
|
stomach secretions and the conversion of starch to sugars by plant extracts and |
| |
|
saliva were known. In 1926, James B. Sumner showed that the enzyme urease |
| |
|
was a pure protein and crystallized it; Sumner did likewise for the enzyme |
| |
|
catalase in 1937. The conclusion that pure proteins can be enzymes was |
| |
|
definitively proved by Northrop and Stanley, who worked on the digestive enzymes |
| |
|
pepsin (1930), trypsin and chymotrypsin. This discovery that enzymes could be |
| |
|
crystallized eventually allowed their structures to be solved by x-ray |
| |
|
crystallography. The structure was solved by a group led by David Chilton Phillips |
| |
|
and published in 1965.This high-resolution structure of lysozyme marked the |
|
|
|
|
|
|
|
| |
|
beginning of the field of structural biology and the effort to understand how |
|
|
|
|
|
|
|
| |
|
enzymes work at an atomic level of detail. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |
|
Enzymes are in general globular proteins and range from just 62 amino acid |
|
|
|
|
|
|
|
| |
|
residues in size, for the monomer of 4-oxalocrotonate tautomerase, to over |
|
|
|
|
|
|
|
| |
|
2,500 residues in the animal fatty acid synthase. Today, enzymes already be |
|
|
|
|
|
|
|
| |
|
used in many fields like feed, food,chemical, medical,and almost each field |
|
|
|
|
|
|
|
| |
|
which related with our life. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |
|
CHBN focus on discover new enzyme and devolop current enzymes to improve |
|
|
|
|
|
|
|
| |
|
our life and benifit our clients. Reseach and development is core issue of our |
|
|
|
|
|
|
|
| |
|
company, We put 15% of our revuenue in reseach and development work. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |
|
We also cooperated with related reseach institutions and universities to stand in |
|
|
|
|
|
|
|
| |
|
the leading position of enzyme development. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |
|
Our R&D is not only in the lab, most of our project is closed cooperation with |
|
|
|
|
|
|
|
| |
|
our customers to resolve their actual problems. |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
