Protease formulations are without a doubt one of the most fully functional dietary supplements in terms of providing significant health benefits. Clinical studies have documented numerous effective benefits and support for people facing a variety of health challenges, ... Views: 498
Amylase (AMS), also known as 1,4-α-D-glucanohydrolase, is a general term for enzymes that hydrolyze starch and glycogen. The main function of amylase is to break down starch to produce simple sugars such as fructose, maltose, glucose and dextrin. Amylases are also used in food and beverage ... Views: 511
The development of artificial synthetic enzymes is still in the initial stage, and significant progress has been made after several years of efforts. The artificial enzyme developed has a catalytic speed close to that of natural enzymes, which means that the speed of chemical reactions can be ... Views: 466
Probiotics are a type of beneficial bacteria in the gut, and are now mostly used for gut conditioning and health care. However, people now know less about probiotics, and it is difficult for many people to distinguish whether probiotics are good or bad, and they do not know anything about ... Views: 462
Lactase is a disaccharidase present on the surface of mammalian small intestinal mucosal microvilli, and many beneficial intestinal bacteria have the ability to produce lactase. Lactase deficiency is present in most of the world's population, affecting nearly 2/3 of the world's ... Views: 542
Bromelain is closely related to pineapple. Chemist Vicente Marcano first discovered bromelain in pineapple in 1891, and then another chemist, Russell Henry Chittenden, extracted bromelain from pineapple fruit, which was then called "proteolytic enzyme in pineapple juice". Scientists have found ... Views: 491
Enzyme engineering is an enzyme technology. With the rapid development of enzymology research, especially the promotion of enzyme application, the basic principle of enzymology is combined with chemical engineering, thus forming enzyme engineering. Enzyme engineering is a technology for the mass ... Views: 450
Alcohol dehydrogenase is abundant in human and animal liver, plant and microbial cells. It is a zinc-containing metalloenzyme with broad substrate specificity. Alcohol dehydrogenase can use nicotinamide adenine dinucleotide (NAD) as a coenzyme to catalyze the reversible reaction between primary ... Views: 308
Probiotics are a class of active microorganisms that are beneficial to the host. They are the general term for active beneficial microorganisms that colonize the human intestine and reproductive system and can produce definite health effects to improve the host's micro-ecological balance and ... Views: 301
How does life appear on earth? This has always been an unsolved mystery. According to the Physicists Organization Network, Canadian researchers published a report in the latest issue of Science that an RNA polymerase played an important role in the birth of life on earth. The new research ... Views: 429
Probiotics are active microorganisms that are beneficial to the human body. They promote nutrient absorption and maintain the health of the intestinal tract by regulating the balance of the intestinal flora. The human intestinal flora contains a large number of microorganisms, as many as ... Views: 452
Chymotrypsin is a typical serine protease. As an endopeptidase that catalyzes the hydrolysis of protein peptide bonds, its realization form is mainly for the cleavage of the peptide bond formed by the carboxyl end of the aromatic amino acid-tryptophan, phenylalanine or tyrosine. Chymotrypsin is ... Views: 451
Alkaline protease is a serine proteolytic enzyme in endopeptidases, which can hydrolyze protein peptide bonds under alkaline conditions, and its optimal pH range is 9-11. It is mainly used in the enzyme detergent industry, and it is also widely used in industries such as tanning, silk, feed, ... Views: 437
Cellulase (β-1,4-glucan-4-glucanohydrolase) is a general term for a group of enzymes that degrade cellulose to produce glucose. Cellulase is a kind of complex enzyme, including C1 enzyme, CX enzyme and glucosidase and other components. Among them, C1 enzyme and CX enzyme can decompose cellulose ... Views: 293
Some substances can easily interact with the oxygen in the air when exposed to the air, causing chemical changes in the substance. This is the process of oxidation. Sun exposure, air pollution, radiation, etc. will cause the human skin to produce a large amount of superoxide free radicals, and ... Views: 446
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: 341
Abzyme, also known as catalytic antibody, is a type of immunoglobulin with catalytic ability, that is, an antibody with catalytic activity prepared through a series of chemical and biotechnological methods. It not only has the corresponding immune activity, but also can catalyze a certain ... Views: 446
Glucosidase is a large class of enzymes in glycoside hydrolase (EC 3.2.1). It is named because it can hydrolyze the glucoside bond and release a molecule of glucose.
Glucosidase has a wide range of sources, and it exists in almost all organisms with cellular structure that use carbohydrates ... Views: 434
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: 341
As the effect and safety of enzyme preparations in flour improvement are increasingly recognized by the flour industry and food industry, people have a more and more in-depth understanding of its practicality. As an important member of the family of enzyme preparations, lipase has been ... Views: 435
As an efficient biocatalyst, enzyme preparations are widely used in the production of food additives. In the 1940s, the microbial enzyme preparation industry became the main source of enzyme preparations due to its wide variety, fast growth, easy processing and purification, and relatively low ... Views: 402
Restriction endonuclease, also known as restriction enzyme, is a class of enzymes isolated from bacteria by W. Arber, H. Smith and D. Nathans et al. (1979). Restriction enzymes have extremely high specificity. They recognize specific sites on double-stranded DNA and cut both strands to form ... Views: 437
If there were no restriction enzymes, what would be the development of molecular biology research today? For 40 years, restriction endonucleases, working behind the scenes, have quietly promoted many basic biological research and commercial applications. Restriction endonucleases (also known as ... Views: 415
Glucose oxidase (GOD) is a typical oxidoreductase found in honey and molds such as Penicillium notatum. It can highly specifically catalyze the β-D-glucose reaction to generate gluconic acid, which has the function of converting glucose and removing oxygen. Since GOD can quantitatively generate ... Views: 470
The so-called fruit and vegetable processing means to maximize the nutrient content of the fruit and vegetable through various processing methods, improve the edible value, and make the color, aroma and taste of the processed product more perfect. Make the fruits and vegetables achieve the ... Views: 302
Restriction enzymes, also known as restriction endonucleases, are enzymes that can cut double-stranded DNA. Its cutting method is to cut the bond between the carbohydrate molecule and the phosphoric acid, and then create a nick on each of the two DNA strands without damaging the nucleotides and ... Views: 292
The optimum pH of cellulase is generally 4.5 to 6.5, which acts on cellulose and products derived from cellulose. Microbial cellulase is of great significance in converting insoluble cellulose into glucose and destroying cell walls in fruit and vegetable juice to improve the yield of ... Views: 302
The basic technology of genetic engineering is artificial cutting, splicing, and combination of genes. A gene is a DNA molecule with a certain function. To accurately cut out the DNA linear molecular fragments of different genes, various restriction endonucleases are required. To connect ... Views: 294
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: 342
Enzyme engineering is a scientific technology that puts enzymes or microbial cells, animal and plant cells, organelles, etc. in a certain biological reaction device, and then use the biocatalytic function of the enzyme to transform the corresponding raw materials into useful substances and apply ... Views: 310
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: 359
Enzymes are proteins with catalytic functions in organisms. The distinguishing feature of enzymes is that they have a high degree of catalytic function and specificity, and the activity of enzymes can be adjusted, which is closely related to the conversion of different energy forms. Up to now, ... Views: 281
Probiotics, in simple terms, are a group of microorganisms that can effectively promote human health. They can resist gastric acid and bile acid, and can attach and colonize in the intestinal tract. According to statistics, the human gastrointestinal tract contains a rich and diverse microbial ... Views: 262
Extracts are liquid or solid natural active ingredients extracted from animal or plant raw materials. Plant extract is a product made from plants. It is formed by physicochemical extraction and separation process according to the needs of the use of the extracted final product, and directed ... Views: 303
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: 364
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: 342
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: 333
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: 338
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: 339
As a substance, catalase was first discovered in 1811 by Louis Jacques Thénard, the discoverer of hydrogen peroxide. In 1900, Oscar Loew named this enzyme capable of degrading hydrogen peroxide "catalase", and discovered that this enzyme exists in many plants and animals. In 1937, James B. ... Views: 301
As a substance, catalase was first discovered in 1811 by Louis Jacques Thénard, the discoverer of hydrogen peroxide. In 1900, Oscar Loew named this enzyme capable of degrading hydrogen peroxide "catalase", and discovered that this enzyme exists in many plants and animals. In 1937, James B. ... Views: 315
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: 346
Helicobacter pylori (Hp) is closely related to the occurrence and development of gastric cancer, peptic ulcer, Hp-related dyspepsia and other diseases. Studies have found that Hp can cause gastric microbial disorders, change the microbial diversity and community structure in the stomach, and ... Views: 293
Probiotics refer to a certain number of live microorganisms that can have a beneficial effect on the health of the host. At present, there are more than 20 kinds of probiotics used in China, mainly including Bifidobacterium, Lactobacillus, Clostridium butyricum, Saccharomyces boulardii, ... Views: 297
Probiotics and prebiotics have attracted much attention because of their functions in regulating the intestinal microecological balance and improving the immune function of the body. The mass consumer demand for related food products is increasing year by year. Starting from the concept of ... Views: 264
The pancreas is an organ deep in the abdomen of the human body. Although it is small in size, its physiological function and pathological changes are closely related to life. It mainly plays an important role in neutralizing stomach acid and digesting protein, fat and sugar. When performing ... Views: 282
Lipase is widely used in the fields of food, chemical industry and biotechnology. The reaction system involves solvent system and water phase system. In order to improve the activity and stability of lipase in the reaction, various methods can be used to modify lipase.
Lipase can catalyze the ... Views: 290
The Role of Probiotics in Cancer Prevention Receives Increasing Attention
Liver cancer is the fifth most common cancer in the world and the third leading cause of cancer deaths. A healthy diet and lifestyle are the key to preventing various diseases. In recent years, probiotics, as part of a ... Views: 271
There are trillions of microbes inhabiting the human intestine. These microbes gradually reach a balance of types and numbers during the process of reproduction, and this balance is closely related to the body's normal metabolism. Once the structure of the intestinal flora becomes imbalanced, ... Views: 252
Lipase (Lipase, glyceride hydrolase) belongs to the class of carboxyl ester hydrolase, which can gradually hydrolyze triglycerides into glycerol and fatty acids. Lipase exists in fat-containing animal, plant and microbial (such as mold, bacteria, etc.) tissues. Including phosphatase, sterolase ... Views: 310