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December 27, 2020    London, UK

2nd Webinar on Microbiology and its Applications

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December 27, 2020   09:00 AM IST  
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2nd Webinar on Microbiology and its Applications

Impact of Microbiology for a Better Future
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Longdom Conferences extends immense pleasure and honor by inviting you to attend “2nd Webinar on Microbiology and its Applications” scheduled for December 22, 2020. Microbiology Conference will be focusing on the theme “Impact of Microbiology for a Better Future” to enhance and explore knowledge among academicians and industry personnel. The detailed agenda of Applied Microbes 2020 will have keynote presentations, plenary sessions, oral sessions, panel discussions, posters presentations,  and a young researchers forum.

Sessions

Microbiology is the study of microscopic organisms, those being unicellular, multicellular, or acellular. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution, and clinical aspects of microorganisms, including the host response to these agents. Microbiology encompasses numerous sub-disciplines including virology, bacteriology, protistology, mycology, immunology, and parasitology.

Types:

  • Bacteriology: the study of bacteria
  • Mycology: the study of fungi
  • Protozoology: the study of protozoa
  • Phycology/algology: the study of algae
  • Parasitology: the study of parasites
  • Immunology: the study of the immune system
  • Virology: the study of viruses
  • Nematology: the study of nematodes
  • Microbial cytology: the study of microscopic and submicroscopic details of microorganisms
  • Microbial physiology: the study of how the microbial cell functions biochemically. Includes the study of microbial growth, microbial metabolism, and microbial cell structure
  • Microbial ecology: the relationship between microorganisms and their environment
  • Microbial genetics: the study of how genes are organized and regulated in microbes in relation to their cellular functions Closely related to the field of molecular biology
  • Cellular microbiology: a discipline bridging microbiology and cell biology
  • Evolutionary microbiology: the study of the evolution of microbes. This field can be subdivided into
  1. Microbial taxonomy: the naming and classification of microorganisms                   
  2. Microbial systematics: the study of the diversity and genetic relationship of microorganisms
  • Generation microbiology: the study of those microorganisms that have the same characters as their parents
  • Systems microbiology: a discipline bridging systems biology and microbiology.
  • Molecular microbiology: the study of the molecular principles of the physiological processes in microorganisms
  • Phylogeny: the study of the genetic relationships between different organisms
  • Astro microbiology: the study of microorganisms in outer space
  • Biological agent: the study of those microorganisms which are being used in weapon industries.
  • Nano microbiology: the study of those organisms on the nano level.
  • Predictive microbiology: the quantification of relations between controlling factors in foods and responses of pathogenic and spoilage microorganisms using mathematical modeling

Microbiology is one of the most applied branches of science. Its outstanding applications in the field of food microbiology, medical microbiology, industrial microbiology, soil microbiology, water and wastewater microbiology, microbial technology (biotechnology), extraction of metals, and environmental microbiology including the use of microorganisms as biosensors are as given below.

1. It provides us with information about different types of microorganisms enabling us to understand their structure and functions; identifications and differentiation; their classifications; nomenclatures (naming), requirements regarding their nutrition; their isolation and purification; as plant and human pathogens; to derive phylogenetic relationships (relationships according to developmental stages in the evolution of an organism) and to understand the origin of life itself.

2. Microorganisms as food: Besides comestible fungi like mushrooms, microorganisms are also being used as single-cell protein in the form of yeasts, bacteria, cyanobacteria, fungi as human food or animal feed. The production of the algal microbes as Chlorella (green alga and Spirulina (cyanobacterium) are being produced in Japan, Taiwan, Mexico, Israel, Thailand, and America. Production of cellulose or lignocellulose utilizing microorganisms serves as human food as such or in the form of their products. Microbial products are also used as animal feed.

3. Microorganisms are used in the production of a large number of, fermented foods such as leavened bread, sourdough bread, fermented milk products, and flavors. The fermented milk products are yogurt, cheese, and several other products.

4. The important fermented vegetables are sauerkraut (from cabbage) and Kimchi (from other fermented vegetables in Korea).

5. Fermented meats and fermented fish are used in different parts of the world due to their increased retentivity, otherwise the meats and fish are highly perishable

6. Beer, vinegar, tempeh, soya sauce, rice wine too are fermented products.

7. Microbiology has been very useful in the preservation of food by heat processing, by pasteurization and appreciation (commercially sterile food), by calculating thermal death values, prevention of spoilage of canned foods, aspects packaging, irradiation, UV radiation, ionizing radiation, high-pressure processing, i.e., racialization, low-temperature storage (chill storage and freezing), chemical preservatives (organic acids, esters, nitrite, and sulfur dioxide). In food microbiology, one learns about bacterial and nonbacterial agents of foodborne illness. Among the helminths and nematodes are Platyhelminthus (i.e. liver flukes and tapeworms) and roundworms (e.g., Trichinella spiralis). The protozoa that cause foodborne diseases are Giardia lamblia and Entamoeba histolytica.

8. Microbial diseases: Microorganisms are the causative agents of a large number of diseases which have been described under a separate chapter.

9. Industrial Microbiology: A large number of products of microbial metabolism after microbial processing of raw materials are produced on an industrial scale. A separate chapter has been given on ‘Industrial Microbiology’.

10. Energy from microbial sources: Several substrates can be used as a source of energy as biogas from methanogenic microorganisms. Microbes like Methanobacterium and Methanococcus can utilize CO2 as an electron acceptor finally producing methane. A new species of Methanobacterium, i.e., M. cladogenesis strain 23 has been evolved in Japan for faster production of methane. Ethanol can also be used for the production of gasohol by mixing 80 percent gasoline and 20 percent ethanol.

11. Degradation of cellulose and lignin: Trichoderina reesei can be used to degrade cellulose since it produces extracellular cellulase. The white-rot fungus Sporotrichum pulverulent is a cellulase negative organism but a mutant of it has been prepared which can degrade kraft and wood lignocellulose actively. It has been possible to produce biological pulp without any chemical treatment for delignification.

12. Mining and extraction of metals: Thiobacillus ferrooxidans and combination of Leptospirillum ferroxidase and Thiobacillus organoparpus can be used to degrade pyrite (FeS2) and chalcopyrite (CuFeS2). The archaeal species Sulfolobus acidocaldarius and S. brierlevi are capable of oxidizing sulfur and iron for energy depending on C02 or other simple organic compounds for carbon. The pyrite and chalcopyrite are also degraded by these archaebacterial species.

13. Recombinant DNA and genetic recombination: Recombinant DNA is a wonderful product of genetic engineering, i.e., manufacturing and manipulating genetic material in vitro. The process of joining DNA from different sources is genetic recombination. A large number of restriction enzymes/restriction endonucleases have been obtained from various microorganisms that can cut or cleave double-stranded DNA leaving staggered ends.

14. Hybridoma and preparation of monoclonal antibodies: Hybridoma is a cell made by fusing an antibody-producing B-cell with a cancer cell. The resulting hybrid myeloma or hybridoma cells have properties of both parent cells immortality and the ability to secrete large amounts of a single specific type of antibody. This was discovered by Kohler.

15. Harvesting DNA biotechnology for public health engineering programs: Such programs include the production of interferon which is an antiviral protein produced by certain animal cells in response to a viral infection, production of human insulin production of somatotropin a human growth hormone and production of a large number of other hormones and vaccines. The vaccines for cholera, diphtheria, tetanus, pertussis, viral hepatitis type A, type B, influenza, mumps, measles (rubella) plague, poliomyelitis, rabies, rubella, typhoid, typhus, and yellow fever have been developed so far.

16. Microbial technology of nitrogen fixation exploiting symbiotic microorganisms in association with lower or higher plants and a symbiotic or nonsymbiotic (by nitrogen-fixing microorganisms independently). Detailed information is covered under a separate chapter on ‘biofertilizers’. In nature, in legume root nodules a red pigment containing a protein called leghaemoglobin is involved in the process of nitrogen fixation. The key enzyme responsible for the biological conversion of molecular nitrogen to ammonia is nitrogenase.

17. Making faster and smarter computers: The Archaeobacterium Halobacterium halobium grows in nature in solar evaporation ponds having a high concentration of salts. Such salty ponds are found around San Francisco Bay located on the Western Coast of the USA. It has been found that the plasma membrane of Halobacterium halobium fragments into two fractions when the cell is broken down. These two fractions are red and purple. The purple fraction is important in making computer parts (chips). The purple color is due to a protein that is 75% of the purple membrane and has been referred to as bacteriorhodopsin. Robert Birge at Syracuse University’s Centre of Molecular Electronics has grown Halobacterium halobium in 5-liter batches and has extracted the protein bacteriorhodopsin from the cells and developed the computer chips which are made up of a thin layer of bacteriorhodopsin. The chips so made from the bacterial source can store more information than the conventional silicon chips and process the information faster more like a human brain. The only drawback is that one needs to store the protein chips at -4°C. But Birge believes that this problem will be overcome soon.

Developing countries increasingly see biotechnology as an avenue to improving the quality of life of their residents. Wonderful things are being predicted, and a capability is building to assure developing countries that they will benefit from the biotechnology revolution, and not become its victims (van Hemertet al. 1983). Outstanding in this regard, despite legal and other problems, is the establishment, by the United Nations Industrial and Development Organization (UNIDO), of twin International Centres for Genetic Engineering and Biotechnology (ICGEB). The centers are under the guidance of a panel of eminent scientific advisors that includes four Nobel Laureates. This panel thinks that excellence and not nationality will be the basis for the selection of directors and senior scientific staff for the centers. One center is planned for New Delhi, India, and its clone will be built in Trieste, Italy. Their proposed programs are based on the assumption that three years will be required to bring the centers to full operating capacity. In the fourth year, it is expected that 31 scientists, 20 postdoctoral fellows, and 30 technicians will be working at each location. The Indian facility will focus on agricultural biotechnology and animal and human health, whereas research at Trieste will concentrate on industrial applications of biotechnology. At both locations, programs will be relevant to problems of developing nations, they will not duplicate programs at other institutions, and to the greatest extent possible, they will be result-orientated. A biophysicist, Dr. Burke Zimmerman, has been appointed Acting Director of the center's projects. He has been a consultant to biotechnology firms and the United States Congress as well as a special assistant to the Director of the National Institutes of Health. He is experienced in policy-making on a broad spectrum of scientific and environmental issues, and his recent bookBiofuture: Confronting the Genetic Era, Dr. Zimmerman (1984) wrote, “The next decade will witness many efforts to extend biotechnology to all corners of the world. Idealism, however, must be coupled with a keen sense of the real problems which now confront developing countries, whether economic, educational, political, or ideological. Some countries are torn by war at present; many others are in the midst of severe economic crisis. It would be too much to expect these endeavors to proceed smoothly and logically, governed by vision. Instead, biotechnology is likely to come slowly to the areas of the world which need it most, through trial, error, and muddling along, through the sustained efforts of dedicated men and women, but, in time, changing the way the world lives.”

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