Pectinase is an enzyme that decomposes pectin, which is the main component of plants. It is widely distributed in higher plants and microorganisms, and also in certain protozoa and insects, depending on the substrate it acts on. It can be divided into three categories. Two of them ... Views: 416
At the beginning of this century, clinics began to measure enzymes in body fluids to diagnose diseases. For example, Wohlgemuth determined urine amylase (AMY) as early as 1908 to diagnose acute pancreatitis. In the 1930s, alkaline phosphatase (ALP) was clinically used to diagnose skeletal ... Views: 415
Industrialization has changed our past dietary habits of natural foods. At the same time, environmental pollution makes our food more or less contaminated. Hypertension, coronary heart disease, hyperlipidemia, diabetes, obesity and other cardiovascular diseases based on the typical symptoms of ... Views: 415
High school textbooks say that most enzymes are proteins. This sentence is not comprehensive, and you can't know this fact just by deduction—enzymes are not only proteins, but also RNases.
What is an enzyme?
Enzymes are defined as macromolecules capable of catalyzing biochemical reactions. ... Views: 415
Multi-enzyme feed is a type of biological feed. This kind of feed is rich in a variety of feed enzymes, which can eliminate the anti-nutritional components in feed ingredients to a certain extent or play a supplementary role in animal endogenous enzymes. Therefore, it is beneficial to improve ... Views: 414
The concept of probiotics originated in Greek, meaning "good for life". As early as in ancient times, humans’ ordinary diets are already rich in lactic acid fermentation foods. Probiotic products refer to live bacteria preparations and their metabolic products that promote the host's ... Views: 412
As a class of proteins with biocatalytic properties, an enzyme is a biocatalyst with a high degree of specificity and extremely high catalytic efficiency. The metabolism of all living things is carried out under the influence of various enzymes. Each organism produces multiple enzymes as well as ... Views: 412
Coenzymes are a variety of small-molecule organic, free-diffusion and non-protein molecules. They are loosely related to the enzyme activity and are essential to it. Coenzymes are sometimes called co-substrates. These molecules are enzyme substrates and do not form a permanent part of the ... Views: 412
Alternatively referred to as hydrolases, the hydrolytic enzymes are used to split different groups of biomolecules, like esters, peptides, and glycosides. Moreover, hydrolytic enzymes can break down protein, lipids, nucleic acids, carbohydrates, and fat molecules to their simplest or smallest ... Views: 412
In the early 20th century, humans discovered vitamins, and then trace elements and minerals. It was only in the mid-1980s that humans realized the importance of enzymes. Nobel Prize in Physiology and Medicine Arthur Kornberg said: "For our lives, we can no longer find other substances as ... Views: 411
Enzymes are molecules, especially proteins that help to accelerate biochemical reactions by interacting with components (reactants and products) without permanently changing them. This promotion process is called catalysis, and accordingly, the enzyme is recognized as a catalyst. Like many ... Views: 410
The biological function of restriction enzymes is derived from the defense of foreign DNA from invading cells. The restriction-modification system of bacteria makes the DNA bases of bacteria to be methylated and modified, so that they are not recognized and cut by their own restriction ... Views: 410
Enzyme activity assay is an analytical technique that uses the properties of enzymes to specifically and efficiently catalyze chemical reactions, and detects the content and activity of certain enzymes in biological samples such as body fluids by measuring the rate of enzymatic reactions.
1. ... Views: 409
In 1752, the French physiologist Leoma discovered that the meat stuffed in the metal tube had dissolved, but he did not know why.
In 1785, the Italian scientist Lazzalo Sparanzoni put the pieces of meat in an empty metal tube with holes to feed the eagle. Soon after, the metal tube was taken ... Views: 407
The factors that affect enzyme catalysis (that is, enzyme activity) will definitely affect the rate of enzymatic reactions, but the factors that affect the rate of enzymatic reactions do not necessarily affect the catalysis. pH, temperature, ultraviolet light, heavy metal salts, inhibitors, ... Views: 405
At the beginning of the 20th century, the enzymes in body fluids were measured clinically to diagnose diseases. For example, Wohlgemuth measured amylase (AMY) in urine as early as 1908 to diagnose acute pancreatitis. In the 1930s, alkaline phosphatase (ALP) was clinically tested for the ... Views: 402
Enzymes can be utilized in numerous fields, such as enzymes for diagnostics and enzymes for cancer treatment. Due to the action of the enzyme, the chemical reaction in the organism can be effectively carried out under very mild conditions, enabling the organism to digest food, absorb nutrients, ... Views: 402
As a highly efficient biocatalyst, enzymes can accelerate biochemical reactions in living organisms. They can also be extracted from cells and then used in a wide range of commercially important catalytic processes. For example, they play an important role in the production of sweeteners and in ... Views: 401
The concept of natural farming is to protect the natural ecological environment and human health. Enzymes in agriculture can be widely used in natural farming.
1. Improve soil quality
Enzymes are natural fertilizers that improve the soil environment and turn barren land into fertile ... Views: 400
Collagen is a family of proteins. At least 30 kinds of genes encoding collagen chains have been found, which can form more than 16 kinds of collagen molecules. According to its structure, it can be divided into fibrous collagen, basement membrane collagen, microfibrillar collagen, anchored ... Views: 395
Enzyme preparations have penetrated into all aspects of our lives due to their high efficiency, safety, non-toxic side effects and low environmental impact. For example, the bread we eat, the juice and beverage we drink, the seasoning for cooking, and the paper documents we use can all use ... Views: 392
Catalysis
Enzymes are a class of biological catalysts. They govern many catalytic processes such as metabolism, nutrition, and energy conversion of organisms. Most of the reactions closely related to life processes are enzyme-catalyzed reactions.
These properties of the enzyme enable the ... Views: 390
With the rapid development of the dairy cattle breeding industry and the dairy industry, the output of raw milk and dairy products has increased significantly, the variety of dairy products has been greatly enriched, and the quality has also made a qualitative leap. High and new technologies ... Views: 389
Enzymes are protein molecules that act as specific catalysts for chemical reactions. Researchers have made significant contributions to the traditional and modern chemical industries by improving existing processes. Representative industrial applications of enzymes are concentrated in the fields ... Views: 388
The appearance of pectinase is light yellow powder, and it is called one of the four major enzyme preparations. In fact, pectinase does not specifically refer to a certain enzyme, but a general term for a class of enzymes that decompose pectin, including galacturonidase, pectin-decomposing ... Views: 387
Enzymes are vital to the human body. Without enzymes, cells in our body will not be able to carry out chemical reactions because the energy required is too grate. Enzymes reduce the activation energy response that needs to occur, thus allowing our body to perform a series of reactions at low ... Views: 386
Lipase, also known as glyceride hydrolase, is a glycoprotein composed of 2%-15% sugar bases, the basic unit of which is mannose. Lipase exists in fat-containing animal, plant and microbial (such as mold, bacteria, etc.) tissues, including phosphatase, sterolase and carboxylesterase, fatty acids ... Views: 384
As a kind of enzymes for diagnostic use. Serum amylase (AMS) is the main type of amylase in serum. It belongs to glycoside chain hydrolase, which is mainly derived from the pancreas. In addition, there are also a small amount of secretion in the proximal duodenum, lung, uterus, and breast during ... Views: 384
Enzymes are an active substance produced by organisms and catalysts for various biochemical reactions in the body. The digestion, absorption and utilization of various nutrients must depend on the action of enzymes. Enzymes have the characteristics of specificity, high efficiency and ... Views: 384
Ascorbate oxidase is a copper-containing enzyme, located in the cytoplasm or combined with the cell wall, and coupled with other redox reactions to act as a terminal oxidase. It can catalyze the oxidation of ascorbic acid, has anti-aging effects, and plays an important role in material ... Views: 384
Big data has begun a major era of transformation. Big data is changing the way we live and understand the world, and it has also become a source of new inventions and services. In the field of biotechnology, because the cost of sequencing technology has fallen sharply, people can obtain gene ... Views: 383
With the advent of more and more new enzyme preparations, medical enzymes will become a new bright spot in the international pharmaceutical market. There are only a few varieties of domestic medical enzymes such as multi-enzyme tablets. Enzyme is a general term for important protein and ... Views: 383
What is the role of protease?
One of the main functions of proteases is to process proteins. Proteins in the body are difficult to digest and do not contain enzymes. Other types of proteases are involved in regulating the activities of blood clotting cells. These enzymes are also called ... Views: 382
The modern industry's interpretation of enzymes refers to proteins with catalytic functions. Enzymes, as natural catalysts, promote various chemical reactions in cells and play a vital role in the existence of living organisms. It has been 130 to 140 years since the concept of enzyme was put ... Views: 382
Lysozyme is a powerful bactericidal substance discovered in nasal mucus by British bacteriologist Fenin in 1929, and was subsequently named lysozyme.
Lysozyme, also known as muramidase or glycoside hydrolase or N-acetyl muramidyl glycanhydrolase, is a hydrolase that specifically acts on the ... Views: 381
Enzymes are an active substance produced by organisms and catalysts for various biochemical reactions in the body. The digestion, absorption and utilization of various nutrients must depend on the action of enzymes. Enzymes have the characteristics of specificity, high efficiency and ... Views: 381
Probiotics are a type of active microorganisms that play a role by improving the balance of the host's intestinal microflora. They can produce definite health effects to improve the host's microecological balance and play a beneficial role. In 2001, the World Food and Agriculture Organization ... Views: 380
The enzymes are the general term for important protein biochemical substances. Both plants and animals have enzymes. As early as more than 100 years ago, scientists have isolated a physiological enzyme, trypsin, from the digestive tract fluids of animals. In a test tube, this substance can break ... Views: 380
Serum enzyme tests have been used in clinical practice for a long time, such as increased amylase activity in serum and urine of patients with acute pancreatitis. In the 1930s, some scholars reported that the determination of serum lipase and alkaline phosphatase activities is helpful for the ... Views: 378
Laccase is a polyphenol oxidase (ρ-diphenol oxidase, EC1.10.3.2) containing four copper ions. It belongs to copper blue oxidase and exists in the form of monomeric glycoprotein. Laccase exists in mushrooms, bacteria and plants, and can also survive in the air. The only product after the reaction ... Views: 377
More than 30 years ago, when people were studying the host-specific restriction-modification phenomenon of bacteriophages, restriction endonucleases were discovered for the first time. Bacteria can resist the invasion of new viruses, and this method of limiting the survival of viruses can be ... Views: 377
Simple Proteinases and Conjugated Proteases
Proteins are divided into simple proteins and combined proteins. Similarly, according to chemical composition, enzymes can also be divided into two major categories: simple proteinases and conjugated proteases. General hydrolytic enzymes, such as ... Views: 375
Ligase is an enzyme that catalyzes the joining of two molecules into one molecule or the end to end of a molecule. This reaction is coupled with the decomposition reaction of ATP. When the two molecules are connected, the high-energy phosphate bond of adenosine triphosphate (ATP) is broken, such ... Views: 373
Two groups of experiments were conducted at the Michael Rees Hospital in Chicago. The experimental group is 21 to 31 years old, and the control group is 69 to 100 years old. Researchers found that the salivary amylase of young people is more than 30 times that of older people. This is why young ... Views: 373
In 2018, the global enzyme product market reached approximately US$9.3 billion. It is expected that from 2019 to 2025, this market will grow at a compound annual growth rate of 7.1%, reaching a scale of US$14.9 billion. Increasing demand for enzymes in industries such as food and beverages, ... Views: 373
The use of restriction enzymes to characterize DNA has been popular since the 1970s. Today, this technique remains one of the easiest and fastest ways to evaluate DNA sequences. As with most laboratory reagents, restriction endonuclease can be fickle. Whether you are simply digesting a plasmid, ... Views: 372
We are very familiar with amylase, no matter in biochemistry, biochemical inspection, or internal medicine, we cannot avoid amylase. Amylase testing is also one of the most commonly used testing items in clinical laboratories.
The discovery of amylase can be traced back to the first ... Views: 372
There are two types of enzymes produced by biological cells: one type of enzymes that are produced inside the cell and then secreted outside the cell for action, called extracellular enzymes. Most of these enzymes are hydrolases. For example, the two amylases used in enzymatic production of ... Views: 372
The International System Classification of Enzymes proposed by the Enzymology Committee of the International Society of Biochemistry divides all known enzymes into six categories according to the types of reactions they catalyze, which are represented by numbers 1, 2, 3, 4, 5, and 6, ... Views: 371
The gastrointestinal tract represents the most extensive interface between the human organism and the external environment. The human gastrointestinal tract is settled by a complex microbial ecosystem, in which microbiota, nutrients and host cells interact extensively. This is a crucial process ... Views: 370