Essay on Microbiology: Bacteria and Degrees Celsius

Submitted By nalasunny
Words: 668
Pages: 3
Open Document
Task 2:
Obligate aerobe: this type of microbe requires oxygen to grow.
Facultative aerobe: these type of microbes can live in the presence or absence of oxygen.

L-acidophilus: The temperature requirements of L-acidophilus to acquire the best and maximum growth is 37 degrees Celsius. L-acidophilus means acid-loving-milk bacterium. It is a species of the genus Lactobacillus. It grows best at a temperature of 37 degrees Celsius and a pH of 5.0 or below. It is found in the human body in the mouth, vagina, and GI tract. It is also considered to be a probiotic and is used in dairy products like yogurt. (http://en.wikipedia.org/wiki/Lactobacillus_acidophilus) S-epidermidis: the temperature requirements of S-epidermidis to acquire the best and maximum growth is between 26-37 degrees Celsius. It is a facultatively anaerobic microbe. It belongs to the genus staphylococcus and part of the human skin flora. It is found in the mucous membranes. (http://en.wikipedia.org/wiki/Staphylococcus_epidermidis)
Controlling the growth of microbes is important in settings such as hospitals, industry, and food preparation facilities. Controlling microbes helps prevent illness.
Here are some examples of different mechanisms to control the growth of microbes: * Sterilization: this is the destruction of microorganisms, endospores, and virures in canned foods and cultured media. It uses steam, incineration, or ethylene oxide. * Antisepsis: is the reduction of microbes and viruses on tissue. It uses chemical antimicrobials like alcohol or iodine. * Aseptic: this is to be free of pathogenic contaminants like handwashing, flame sterilization, and preparing surgical instruments. * Disinfection: this is the killing of microbes and viruses on nonliving tissue with use of physical or chemical agents. For example, phenols, alcohols, surfactants, and aldehydes. * Degerming: this is the removal of microbes by mechanical means such as cleaning with an alcohol wipe or hand washing. * Pasteurization: this uses heat to kill pathogens. Examples include pasteurized juice and milk. * Sanitation: this is the treatment to remove microbes on objects. This can include washing with high temperatures and disinfectant baths.
Culture Media: this is defined as a nutrient material that is used for the growth of microorganisms. They must be sterile in order to maintain the integrity of the microbe that is being grown. It also must contain the correct moisture, nutrients, pH, and oxygen levels for the specific microbe to grow. Here are some different examples of Culture media used: * Agar: this is a polysaccharide made from red algae. It is used to grow microbes in Petri dishes. * Chemically defined medium: the exact chemical composition is used and must contain growth factors that serve as a source of energy and carbon.
Show More

Related Documents: Essay on Microbiology: Bacteria and Degrees Celsius

Phenol Red Maltose

The objective of this experiment is to test and apply the knowledge as well as lab techniques acquired throughout the semester from my Microbiology lab to identify an unknown bacterium given in class. A case study was assigned with the following information: James visits the hospital after a fun weekend of celebrating his college graduation. For the last 24 hours, he has been experiencing a range of symptoms including nausea, vomiting, diarrhea, headaches, and occasional muscle cramping. He cannot…

Words 1623 - Pages 7

Lsd C Essay

Ed Walsh Industrial Microbiology Article Review #2 Indirect enzyme-linked immunosorbent assay for the quantitative estimation of lysergic acid diethylamide in urine Clinical Chemistry 44:5, pgs. 985-990, (1998) The use of lysergic acid diethylamide (LSD) is difficult to detect in body fluids due to the lose dose ingested and its rapid biotransformation. The past techniques that have been used to detect LSD in urine and biological matrices were thin layer chromatography, RIA, high performance…

Words 1052 - Pages 5

Unknown Bacteria Essay

INTRODUCTIONS: Bacteria are both helpful and damaging. These microbes are significant to persons since they production a role in the biology of lifespan, by decaying wastes, both environmental and synthetic. Additional numerous bacterium that can cause grave harm, even direct killing due to the sicknesses or illness affecting products they produce. General, bacteria play an essential role in life. The cause of this study was to identify the unknown bacterium utilize biological tests and several methods…

Words 1254 - Pages 6

Sexually Transmitted Diseases Essay

Science For Living Notes (Compiled) Table of Contents Unit 1 Measurement 5-10 Unit 2 Matter 11-48 Unit 3 Basic materials for maintaining life Air 49-54 Water 55-68 Food 69-71 Other biomolecules of life 72-76 Unit 4 Energy in the Community Electricity 77-78 Heat 78-81 Light 82-91 Sound 92 Simple Machines 93-99 Unit 5 The Physical Environment Weather and Climate 100-113 Soils 114-128…

Words 35677 - Pages 143