enzyme. He won a Nobel Prize in the field of medicine in 1928 for discovery of penicillin. He shared the prize with two other scientists. The discovery of penicillin literally changed the world. Penicillin altered treatment of infections caused by bacteria forever and became a very important life-saver. The discovery led to emergence of a strong industry of pharmacies which developed forms of penicillin which would conquer the most dangerous diseases in the history of mankind such as tuberculosis‚
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found in the gut of endotherms (warm blooded organisms). Several types of E. coli exist as part of the normal flora of the human gut and have many beneficial functions‚ such as the production of vitamin K2. They also prevent harmful bacteria‚ known as pathogenic bacteria‚ from establishing themselves in the intestine. Most E. coli strains pose no harm to human health‚ except for serotype O157:H7‚ which can cause food poisoning in humans and can become life-threatening. Other less common serotypes
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List down 3 fungal disease which are available in Malaysia Num | Pathogen | Host plant | Identifications | Controls | 1 | Black Pod‚Phytophthora palmivora | Cocoa plant | Early symptoms: * Formation of watery spots on the fruit surface.Symptoms: * Spots grow and change color to brown and turn dark brown in color that covers the entire surface of the fruit. * Infection on the immature fruit caused overall seed rot * In wet weather‚ the formation of a spots of white sporangia can be seen
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Food Irradiation Food irradiation has the longest history‚ more than 40 years‚ of scientific research and testing of any food technology before approval. Research has been comprehensive‚ and has included wholesomeness‚ toxicological‚ and microbiological evaluation. Worldwide‚ 38 countries permit irradiation of food‚ and more than 28 billion lb of food is irradiated annually in Europe. It is important to note that food irradiation has a pretty remarkable list of national and international
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and many more because there is an unseen specimen called bacteria. Bacteria such as e-coli and staphylococcus are the most common bacteria that can cause illness to mankind. According to the World Health Organization (WHO) 3 out of 10 people are infected by bacteria that cause various diseases. This study was conducted to determine the anti-bacterial properties of duhat bark extract and it’s fighting ability against various types of bacteria. The bark of duhat is reported to have the capacity to treat
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Synthesis‚ Spectral‚ and Antibacterial Studies of Silver Nanoparticles and Silver(I) Complex of 2-Mercaptobenzothiazole Abstract : Microbes‚ such as bacteria‚ molds‚ yeasts‚ and viruses‚ in living environment are often pathogenic and cause severe infections in human beings. Therefore‚ there is a pressing need to search for new antimicrobial agents from natural and inorganic substances [1]. Antimicrobial nanoparticles mainly consist of metals‚ metal oxides‚ and many biologically derived materials
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disease to be one of the most prevalent diseases in the world‚ while the discovery of mycobacterium tuberculosis by a scientist named Robert Koch has brought a chance of decrease. Mycobacterium tuberculosis (MTB) is an etiological agent or pathogenic bacteria that cause most of the tuberculosis. It is a small rod shaped bacillus which can survive in a dried or disinfected state for several weeks thanks to its thick lipid cell wall. Moreover‚ its thick lipid wall allows them to survive in the macrophages
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SIGNIFICANCE OF THE STUDY Street-vended food or It’s equivalent “street food” which are defined as food and beverages prepared and sold by vendors jmon streets and other public places for immediate consumption or consumption at a later time without further processing or preparation. Consumers are always interested on convenience rather than safety. Vendors are often poorly educated‚ unlicensed‚ untrained in food hygiene‚ and they work under crude unsanitary conditions with little or no knowledge
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Pertussis is a disease caused by Bordetella pertussis is a gram-negative‚ aerobic‚ pathogenic‚ encapsulated coccobacillus of the genus Bordetella that produces endotoxins and exotoxins. This bacterial infection is found in the lower respiratory tract and is commonly referred to as Whooping Cough. Whooping cough is highly contagious. Classic symptoms include fever and cold like symptoms followed by paroxysmal coughing episodes that leave the infected person gasping for breath with a characteristic
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Jess Fritsche Leptospira interrogans; Leishmania donovani; Legionella pneumophila Leptospira interrogans are flexible‚ gram-negative spirochetes (spiral or cork-screw bacteria) with internal flagella that they use to propel themselves by twisting back and forth 1. “They are motile‚ with hooked ends and paired axial flagella (one on each end)‚ enabling them to burrow into tissue. Motion is marked by continual spinning on the long axis” 2. Leptospira cells are encased in a three to five layer
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