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    Home > Biochemistry News > Biotechnology News > "Father of Microbiology" - Louis Pasteur.

    "Father of Microbiology" - Louis Pasteur.

    • Last Update: 2020-09-14
    • Source: Internet
    • Author: User
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    He is the "father of microbiology" - Louis Pasteur (1822.12.27-1895.9.25).
    has carried out many exploratory studies through his life and achieved great results, and is one of the most accomplished scientists of the 19th century.
    he used his life's energy to prove three scientific problems.
    fermentation is due to the development of a microbacteria Pasteur designed and conducted the famous goose-neck cans experiment, proving that bacteria are not naturally produced, but by pre-existing bacteria.
    this put forward the "life theory" - biology can only originate from living things, non-living substances can never spontaneously produce new life at any time, overturning the theory of natural occurrence.
    created a "pasteurization method": first heat the substance required to be sterilized to 65 degrees C for 30 minutes or 72 degrees C for 15 minutes, and then quickly cool down to less than 10 degrees C.
    this does not destroy nutrients, but also kills the nutrients of bacteria.
    different foods use pasteurization for different purposes.
    Pasteurization for bovine milk, whole eggs, egg whites and egg yolks is primarily the destruction of possible pathogens such as tuberculosis and salmonella, while pasteurization of beer, cider (wine) and fruit juice is intended to extend the shelf life of products from a microbial and enzyme perspective.
    1856-1860, he proposed a new theory of the nature of fermentation based on microbial metabolism.
    published in 1857, "Records on Lactic acid Fermentation" is recognized as a classic paper in the microbiology community.
    Two "pasteurization" "pasteurization method" and "pasteurization solution" is not the same pasteurization Oh, with the small compilation of science and technology: pasteurization method, also known as low-temperature disinfection method, cold sterilization method, is a use of lower temperature can kill germs and can keep the flavor of nutrients in the article unchanged disinfection method, is often used to define the need to kill a variety of pathogenic heat treatment method.
    and "pasteurizing liquid" is derived from the former Soviet union scientist Bazoov sodium hypochloride solution used in hospitals for disinfection solution, was popularized, referred to simply as "pasteurizing liquid", and then reduced to "84 disinfection liquid."
    that pas should be the habit of the Chinese people, heavy surnames, and the West seems to be more renamed, it seems that this "Bashi" is also the product of the combination of China and the West.
    Each infectious disease is the development of microbacteria in the organism Pasteur became a legendary figure in France, the silkworm industry in the south of France is facing a crisis, a disease caused by a large number of silkworm deaths, so that the southern silk industry was severely hit, people to Pasteur for help.
    in 1865 Pasteur went alone to Alai, a silkworm disaster area in southern France.
    he looked through a microscope and found a small, oval brown particle, which was the "culprit."
    stressed that all infected silkworms and contaminated food must be destroyed and healthy silkworms must be used to start from the beginning.
    to stop the spread of disease by examining and eliminating the disease, without the eggs of the diseased dragonfly to hatch silkworms.
    this saved France's silk and silk industries.
    microbacteria, which can be reduced under special cultivation, can change them from germs to disease-proof vaccines.
    , Pasteur began to study silkworm disease, and gradually solved the mystery of higher animal diseases, that is, diseases caused by germs, and established the theory of bacteria.
    in an experiment against chicken cholera, which was endemic in rural France in 1880, Pasteur found that chickens that received old culture fluids because of the effects of oxygen in the air were not infected.
    this accidental discovery led to his confirmation of the principles of the absociated disease immunity method, which led him to the idea of a vaccine for the manufacture of anti-anthrax.
    although the British doctor Tsina invented the cowpox vaccination method before him, he was the first person to consciously develop a successful immunization vaccine and to prevent a wide range of diseases.
    , pasteurized animal anthrax and successfully isolated and purified a germ from the blood of anthrax animals such as cattle and sheep.
    he cultured the anthrax bacteria in chicken soup at temperatures of 42 to 43 degrees Celsius.
    , the bacteria do not form spores, thus selecting non-toxic strains as a vaccine.
    confirmed that it was the bacteria that caused the animal to get sick and die.
    's the idea that animals are infected with disease.
    was the first person in the world to successfully develop an anthrax-reducing active vaccine, thus protecting the livestock industry from extinction.
    the study of rabies vaccines in his later years was a shining peak for Pasteur's career.
    rabies was not a common disease, but the mortality rate was 100 per cent.
    the search for pathogens, despite many difficulties and failures, a highly toxic pathogen was eventually found in the brains and spinal cords of rabies-infected animals.
    to get the virus, Pasteur often risked his life to extract it from sick animals.
    Pasteur removed the many-generation rabies virus along with the rabbit's spinal cord, hung it in a dry, disinfected cabin, allowed it to dry naturally for 14 days to detoxify, and then developed the spinal cord into an emulsifying agent, diluted with physiological saline water, to make the original Pasteur rabies vaccine.
    is the first person in the world to save lives from rabies.
    1888, in recognition of his outstanding contribution, the Pasteur Institute was established, with him as its own director.
    , the Pasteur Institute has become a well-known biomedical research center, focusing on the research and production of anti-serum and vaccines.
    september 28, 1895, at the age of 72, Pasteur sleeps in Villeneuve L'Etang surrounded by friends, family and students.
    half a century, and the scientific world was dominated by him, a quarter of the time, in the event that he was half-naked.
    there is no doubt that most of the credit for reducing human mortality is due to him.
    " will, work, success, is the three major elements of life.
    will open the door to your career, work is the path to the room, and at the end of this path, there is a success to celebrate the results of your efforts... As long as there is a strong will, hard work, there must be a successful day.
    thank the man who was hailed by the world as "the most perfect person to enter the kingdom of science."
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