can be produced in a lab by feeding bacteria a diet rich in nutrients until large colonies form and then withdrawing glucose. The bacteria immediately start secreting PHB‚ which provides them with an energy store. In the 1980‚ the three genes in Alcaligenes eutrophus needed for the production of PHB were successfully cloned and transferred into a common bacteria‚ E.coli because it reproduced quickly and has an easily manipulated physiology. The PHB gene is transported into corn and maize plants‚ which
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Biopolymers Biopolymers are polymers that those that are made from living things and can be broken down by micro-organisms when released into the environment. Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate produced by a microorganism called Alcaligenes Eutrophs. The bacterial culture is given abundant nutrient for rapid replication. Nutrient supply is then drastically reduced and the bacteria converts the available food into energy storage. This is produced in the form of PHB. PHB is then harvested
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we continue to use petroleum to make polymers for plastic etc‚ we will eventually run out therefore Biopol has been introduced as a replacement polymer for petroleum. Biopol is made from a biological substance which is a microorganism known as Alcaligenes eutrophus. Properties; Biopol is stable when stored in air and even in humid conditions. The decomposition into carbon dioxide and water will only occur when they expose the polymer to microorganisms found in soil‚ sewage‚ river bottoms and
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There are several different medical reasons for identifying microorganisms. The reasons may vary from having to know the causative agent of a disease in a patient to be able to treat and care for them properly‚ to knowing the correct microorganism to be used for making certain antibiotics as well as proper dosages‚ down to knowing all microbes associated with consumed foods such as plants and animals in case of an allergen or a contamination outbreak. This analysis was done by utilizing all of
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Your answer for each question should be a minimum of 150 words (half page). Cite your sources after each question. 1. In 1835‚ Bassi showed that a fungus caused a silkworm disease‚ and in 1865 Pasteur discovered that a protozoan caused another silkworm disease. Why do we use Koch’s postulates instead of Bassi’s or Pasteur’s postulates? Koch was the first scientist to prove that bacteria actually cause disease. He scientifically demonstrated that a disease is caused by a particular organism
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FOOD AND INDUSTRIAL MICROBIOLOGY Food spoilage‚ food infections and intoxications caused by microorganisms and methods for their detection Dr. Neeraj Dilbaghi Reader‚ Department of Bio & Nano Technology Guru Jambheshwar University of Science and Technology Hisar- 125001 and Dr (Mrs.) S. Sharma Professor‚ Department of Microbiology‚ CCS Haryana Agricultural University‚ Hisar- 125001 (Revised 25-Sep-2007) CONTENTS Introduction Food Spoilage and General Principles Underlying Spoilage of Food Intrinsic
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to the multidrug-resistant strain S. aureus MRSA252‚ whereas the compound was moderately active against E. coli and E. faecalis. Butyl amine‚ from which C5H20NNaO5S2 was synthesized‚ showed only moderate activity against MRSA252. Table 6: Antibacterial activities (zones of inhibition [in mm] on agar plates) of sodium butyldithiocarbamate pentahydrate S. aureus (mm) E. faecalis (mm) E. coli (mm) BA 10.0 0.0 0.0 C5H20NNaO5S2 40.7 18.0 10.0 DMSO 0.0 0.0 0.0 Tetracycline 30 28 Vancomycin 22 BA:
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cannot digest. They also discovered genes devoted to processing materials that are produced by the human cells like mucin. This bacteria grazes within the mucous coating on the intestine. They don’t damage their range-land. Dr. Gilmore along with B. Faecalis‚ the research exhibited "that it devotes many of its genetic material to digestive enzymes in which take place on the surface of the cell.” That suggests it can be breaking substances for other additional organism‚ most likely aiding certain sorts
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REVIEW OF RELATED LITERATURE This investigatory project aims to make use of rambutan peeling extracts that is high in phenolic compounds such as tannin and saponin that exhibits antioxidant activity and antibacterial activity against pathogenic bacteria. Although the seeds contain such compounds the peeling exhibit greater amount of the said compounds. Rambutan is a very popular fruit cultivated in the Philippines and it is eaten in large amounts. The rambutans rind is quickly discarded and
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There are only two microorganisms‚ one is Gram positive and one is Gram negative‚ inside the test tube. The Gram positive possibilities are to be narrowed down from Bacillus cereus‚ Clostridium perfringens‚ Corynebacterium xerosis‚ Enterococcus faecalis‚ Streptococcus agalactaie‚ Staphylococcus aureus‚ and
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