PPT-Microbiology Chapter 9 Controlling Microbial Growth

In the Environment Table 91 Terminology of Microbial Control Figure 91 A plot of microbial death rate Basic Principles of Microbial Control Action of Antimicrobial Agents Alteration of cell walls and membranes. 1 Microbial Growth:4Refers to an increase in cell , not in cell size.4Bacteria grow and divide by binary a rapid and relatively simple process. Requirements for GrowthPhysical Requirements1. : Microb -. 2015-. Microorganism Identification . Process. . *Lecture 1*. Introduction to Bacterial Identification. . Accurate and definitive microorganism identification, including bacterial identification and pathogen detection, is essential for . 1. 41. Copyright © McGraw-Hill Global Education Holdings, LLC. Permission required for reproduction or display.. Microbial Growth and . Food . Spoilage. Results . from growth of microbes in food. alters food visibly and in other ways, rendering it unsuitable for . in vitro. CLS 212. Microbicidal. . Microbicidal is the process or an agent that . kills. the microorganism. . The suffix . -. cidal. or . –. cide. means . ??( . See chapter 8 page 131. ). . A. Microbial Reproduction. 1. binary (transverse) fission. A) parent cell enlarges and duplicates all its genetic material. B) DNA copies move to opposite ends of parent and attach to a section of the cell membrane as it begins to pinch together at the center. -. 2015-. Microorganism Identification . Process. . *Lecture 1*. Introduction to Bacterial Identification. . Accurate and definitive microorganism identification, including bacterial identification and pathogen detection, is essential for . Microbiology. Microbial Growth. Microbial requirements for growth:. 1. . Physical. A. . Temperature. Optimal growth temperature. Permissible range. human pathogens optimal = . 37°C. Microbial Growth. Microbial growth is the increase in number of cells, not cell size. Microbial Growth. The Requirements for Growth: . Physical Requirements. Temperature. Minimum growth temperature. Optimum growth temperature. Slide 1 C18-45: Save the date Friday 7 September 2018 - Saturday 8 September 2018 KEYNOTE SPEAKERS: Toby Kiers, Amsterdam, The Netherlands ( soil microbiology , ecology ) Andy Waters, Glasgow, United Kingdom -Laboratory Manual-. prepared for Environmental Microbiology. III. Microorganism Growth. Factors Controlling Growth. anindrya.pahlawan@ymail.com. Environmental Management technology. Faculty of civil and environmental engineering. Musafer. PhD. Microbial growth defined as an increase in cellular constituents resulting an increase in a microorganism size, population number or both.. 1-Lag phase. When M.O are inoculated into fresh culture medium, will not reproduce immediately, therefore this period is called the lag phase. . biotechnology.important. branch of Microbiology where economically valuable products are produced from cheaper raw materials by using large culture of . m.o.. Up stream and Downstream process.. Screening-Definition.. 9. Figure 9.1 A plot of microbial death rate.. Constant percentage. of the extant population. is killed each minute. Basic Principles of Microbial Control. Action of Antimicrobial Agents. Alteration of cell walls and membranes. SINGH . AXON|BIO . Network. Contents. –. Introduction . Disease caused by air borne microbes. - Bacterial diseases. . - Air born fungal diseases. . - Air born viral diseases.