The World Health Organization (WHO) defines probiotics as live bacteria that can play a beneficial role in the health of consumers by ingesting an appropriate amount. This contains three characteristics of probiotics:
1. Probiotics are "live bacteria"
That is, probiotics can resist various ... Views:237
Probiotics and gut microbiota have been international research hotspots and social hot topics in recent years. In media reports, probiotics often have various health effects and can "treat multiple diseases"; however, some media reports that "probiotics are useless" or even "probiotics are ... Views:252
Enzymes are biocatalysts produced by living cells in organisms, most of which are usually globular proteins. These enzymes can effectively catalyze various biochemical reactions and promote the metabolism of organisms under normal human conditions. Life activities such as digestion, absorption, ... Views:222
The intestine is the human body's largest digestive and immune organ, responsible for 99% of nutrient absorption and 70% of immune work. The amount of food consumed in a lifetime is equivalent to 12 elephants. The intestine has more than 400 kinds of 10 trillion bacteria, diligently maintaining ... Views:245
Once upon a time, breast milk was considered the best food for babies. Until now, many people still believe in this. However, even the most perfect food in nature can be contaminated by the earth's ecology destroyed by humans. The pollution and destruction of the ecological environment and the ... Views:338
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:311
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:308
1. Are probiotics bacteria?
When it comes to bacteria, many people equate it with pathogenic bacteria and "sterilize" as much as possible. However, not all bacteria are harmful. There are many microorganisms such as bacteria that are beneficial to human health. They are generally divided into ... Views:317
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:325
With the improvement of living conditions, the flavor, taste and nutrition of food have higher standards, and the food processing industry is developing in the direction of safer and higher quality. Green, safe and efficient enzyme preparations are good substitutes for chemical agents in ... Views:606
At present, people have a deep understanding of the importance of macro-ecological balance, but micro-ecological balance is far from receiving the attention it deserves. Understanding the importance of the micro-ecological balance of the human body and maintaining the micro-ecological balance ... Views:265
There are as many as four to five hundred kinds of bacteria in the human intestine, some of which secrete antibiotic-like substances to combat harmful bacteria such as Salmonella, Escherichia coli, Candida albicans, and Clostridium perfringens. Such bacteria are called probiotics. The presence ... Views:272
Cancer, or malignant tumor, has become one of the most common fatal diseases. There are about 11 million new cancer cases in the world every year, and new cancer cases in China account for 20.3% each year. It has always been a major public enemy threatening health. The occurrence of cancer is ... Views:258
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:281
There are more than 50 kinds of microorganisms (including aerobic bacteria and anaerobic bacteria) living in the vagina of healthy women, and it is also a microbial ecology. Aerobic bacteria include: vaginal bacillus (dominant), corynebacterium, non-hemolytic streptococcus, enterococcus, ... Views:308
It is generally believed that prebiotics provide "food" to probiotics, which can be decomposed and absorbed by beneficial bacteria in the intestines, and promote the growth and reproduction of beneficial bacteria. The familiar bifidus factor is a prebiotic that promotes the growth of ... Views:238
Carbohydrates are one of the basic substances that make up living organisms and play an important role in various life activities. At present, there is no living body that can exist without carbohydrates. Carbohydrates are not only the main source of cell energy, but also play an important role ... Views:408
What is Proteomics?
Proteome refers to all the proteins expressed by a genome or a cell or tissue. Proteome is a dynamic concept. It is to explore the mode of action, functional mechanism, regulation and control of proteins as well as the mutual relationship within the protein population at the ... Views:418
Metabolomics is a discipline that studies the types and quantities of endogenous metabolites in organisms and their changing laws under internal and external factors. It is an important part of systems biology. In the late 1990s, Nicholson first proposed the concept of "metabonomics", which ... Views:476
In order to improve the quality of raw materials during the processing and production of Western-style pastry, some additives are often needed to assist the processing in the initial processing stage. However, for different taste needs, if the appropriate selection and dosage adjustment of these ... Views:355
Cellulose accounts for about 1/2 of the total dry weight of plants. It is the oldest and most abundant natural polymer material on earth, and it is the inexhaustible and most precious natural renewable resource for mankind. However, due to the high degree of polymerization of plant fiber and the ... Views:274
As research on intestinal microbes continues, probiotics are flooding the market. The industrial applications of probiotics continue to flourish. So far, the application of probiotics has covered many aspects such as fermented foods, dietary supplements, health care products additives, and ... Views:249
Immobilized enzyme is a new technology developed in the 1960s. The so-called immobilized enzyme refers to an enzyme that has a catalytic effect in a certain space and can be used repeatedly and continuously. Enzyme-catalyzed reactions are usually carried out in aqueous solutions, while ... Views:421
Feed complex enzymes are a class of hydrolytic enzymes, including amylase, protease, lipase, phytase, cellulase, xylanase, pectinase, β-glucanase, mannanase, etc. There are no enzymes that decompose phytate, cellulose, hemicellulose, pectin and other non-starch polysaccharides in the digestive ... Views:403
The pulp and paper industry is one of the important pillar industries of the national economy, but the current pulp and paper industry is faced with the shortage of raw materials, energy shortages, and serious pollution, which restrict its development.
In recent years, people have ... Views:325
Washing powder has a history of more than 100 years. German Henkel invented washing powder for the first time in 1907 using borate and silicate as the main raw materials. Washing powder is an alkaline synthetic detergent. The main component of washing powder is anionic surfactant: sodium ... Views:693
Lipase (EC 3.1.1.3), the full name of triacylglycerol hydrolase, is a class of biological enzymes that can hydrolyze long-chain fatty acid glycerides into fatty acids and monoglycerides, diglycerides or glycerol. It can be derived from animals, plants and microorganisms, and can catalyze ... Views:320
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:274
Pepsin is one of the main protein degradation or proteolytic enzymes in the digestive system. During the digestion process, pepsin acts on complex dietary proteins and is broken down into peptides and amino acids that are easily absorbed by the intestinal wall. It can be used as an adjuvant ... Views:337
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:264
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:301
Various biochemical reactions continue to occur in organisms, which require corresponding enzymes to catalyze, so there are many types of enzymes. According to statistics from the enzyme website BRENDA, the number of enzymes officially included has reached 7,984.
To study and apply these ... Views:335
As biocatalysts, enzymes and general catalysts are the same in many respects. For example, the amount is small but the catalytic efficiency is high. Like general catalysts, enzymes can only change the speed of chemical reactions, not the equilibrium point of chemical reactions. The enzyme itself ... Views:429
The essence of most enzymes is protein, and only a few enzymes are RNA, so this article only discusses enzymes composed of proteins. These enzymes, like other proteins, are composed of amino acids and have primary, secondary, tertiary, and quaternary structures. Enzymes will also be denatured ... Views:587
Enzymes have unparalleled advantages over ordinary catalysts and have been widely used in food, medicine, textile, detergent and cosmetics industries. Most of these applications are performed in aqueous solution, but many valuable products are insoluble in water, and there are many useful ... Views:263
Dairy products are an indispensable part of daily life for each of us. Strangely, we often hear that someone will have abdominal pain and diarrhea after drinking pure milk, and this reaction is definitely not caused by food spoilage.
There is such a disease called lactose intolerance. People ... Views:376
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:323
Do you know when enzymes begin to be produced in the human body? The answer is that they existed during the egg and sperm period. It is also because of the activity of the enzyme that the egg and sperm can be combined. Cell division must use enzyme as the medium, so that the egg and sperm can ... Views:511
Although there are thousands of enzymes in the human body, the most significant impact on human nutritional intake is digestive enzymes. The lack of sufficient active digestive enzymes not only prevents food nutrients from being fully absorbed, but also affects the efficiency of muscle synthesis ... Views:371
Lack of enzymes, especially lipase deficiency, may cause vascular problems such as cardiovascular disease and high blood pressure. If the lack of lipase occurs in certain parts of the body, it may also cause obesity. It has been reported that obese patients have less lipase in adipose tissue. ... Views:363
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:330
As a biocatalyst, enzyme has been widely used in various production fields of light industry. In recent decades, with the continuous technological breakthroughs in enzyme engineering, it has become more and more widely used in industry, agriculture, medicine and health, energy development and ... Views:364
Pectinase is a general term for a group of enzymes that can catalyze the degradation of pectin substances. Pectin substances are usually present in higher plants, such as vegetables, fruits, corn, soybeans, etc., and are one of the components of non-starch polysaccharides. Pectinase degrading ... Views:512
Biosensors made with enzymes are becoming more and more widely used in environmental monitoring. Enzymes are playing an important role in the process of waste treatment and recycling. Using genetic engineering and protein engineering to expand the metabolic pathways of enzymes is the treatment ... Views:371
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:289
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:290
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:301
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:306
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:302
Since enzymes have the advantages of reaction specificity, high catalytic efficiency and mild reaction conditions, they have been increasingly used in industry, agriculture, medicine and environmental protection. But the overall has not yet reached the level of large-scale application, the main ... Views:333