Biotechnology In environment Clean up Process - APPSC G1 Mains - Paper 4 - Section 2 - Unit 3 The term "Environment" is defined as our surroundings which includes the abiotic component (the non living) and biotic component (the living) around us. The abiotic environment includes water‚ air and soil while the biotic environment consists of all living organisms – plants‚ animals and microorganisms. Environmental pollution broadly refers to the presence of undesirable substances in the environment
Premium Bacteria Soil contamination Pollution
Introduction The purpose to this lab was to isolate and identify two unknown bacteria from a mixed culture provided to us by our instructor. This study was done by applying all of the methods that have been instructed on thus far in microbiology laboratory class. Each test performed‚ provided us with some key information about the unknown microbes in question and how the bacteria function. Materials and Methods Over a two week period‚ eight prepared types of test media were provided to
Premium Management Learning German language
International Journal of Food Microbiology 71 Ž2001. 1–20 www.elsevier.comrlocaterijfoodmicro Review article Bacteriocins: safe‚ natural antimicrobials for food preservation Jennifer Cleveland a ‚ Thomas J. Montville a ‚ Ingolf F. Nes b‚ Michael L. Chikindas a‚ ) a Department of Food Science‚ Rutgers‚ The State UniÕersity of New Jersey‚ 65 Dudley Road‚ New Brunswick‚ NJ 08901‚ USA b Laboratory of Microbial Gene Technology‚ Department of Biotechnological Sciences‚ Agricultural UniÕersity
Premium Cheese Bacteria Amino acid
64. Interpret the following results: A. The color of the medium remains purple or light blue-gray; there is also no change in the texture of the medium. * No change B. Change in the color of litmus from purple to pink or pink-red throughout the tube. Upon further incubation a white ring of litmus forms at the bottom of the tube at the pink-red color is now present only at the top of the tube. Still further incubation leads to the formation of a rennet curd at the bottom of the
Premium Hydrogen Metabolism Bacteria
1. Title: Double unknown identification of a mixed culture of Gram-negative and Gram-positive bacteria 2. Author: Nick Fiore‚ University of Kansas‚ Biology 402‚ Fall 2014 3:00pm room 6040 3. Abstract: The purpose of this experiment was to isolate two unknown bacteria and perform a series of selective and differential tests to correctly identify each. After the bacteria was isolated a series of differential and selective tests following the dichotomous key attached were used to identify each bacteria
Premium Bacteria Microbiology Gram staining
Lahela Correa 12/08/2009 Microbiology 140 Matthew Tuthill Unknown Lab Report Introduction There are many reasons for knowing the identity of microorganisms. The reasons range from knowing the causative agent of a disease in a patient‚ so as to know how it can be treated‚ to knowing the correct microorganism to be used for making certain foods or antibiotics. This study was done by applying all of the methods that I have been learned so far in the microbiology laboratory class for the identification
Premium Bacteria Escherichia coli Enzyme
QUALITY CONTROL Results after 24 hrs at 35º C Organisms ATCC Growth Colour Escherichia coli 25922 + red Proteus mirabilis 12453 + colourless Salmonella typhimurium 14028 + colourless Streptococcus faecalis 29212 - or partial Uses Acting as a visual ph indicator‚ the agar distinguishes those Gram-negative bacteria that can ferment the sugar lactose (Lac+) from those that cannot (Lac-). This medium is also known as an "indicator medium" and
Premium Microbiology Bacteria Escherichia coli
Lactic Acid + 4ATP They are heterotrophic and can be found extensively in nature including plant leaves (e.g. Lactobacillus‚ Leuconostoc)‚ the animal’s oral cavity (e.g. Streptococcus mutans)‚ digestive system (e.g. Enterococcus faecalis)‚ genitourinary tract (e.g. Lactobacillus) as well as faecal matter‚ compost and rotting vegetation. These areas normally have an adequate supply of amino acids and vitamins (Murray et al‚ 1998; internet 1). They are aero tolerant anaerobes which
Premium Lactobacillus Microbiology Milk
Microbial Diversity and Ubiquity Microorganisms are microscopic organisms that are so small that that they can only be visualized by the aid of a compound-brightfield microscope. While we generally cannot see individual microorganisms with the naked eye‚ they are present in virtually every habitat known to man. Microorganisms can be prokaryotic—the bacteria or eukaryotic—the algae‚ protozoa or fungi. While viruses are acellular they are also studied in the scope of microbiology because
Premium Bacteria Ecosystem Organism
Ventilator Associated Pneumonia is one of the many nosocomial bacterial infections that patients in Intensive Care Units might acquire during their stay. VAP is the number one hospital acquired infection contracted in ICU’s. It occurs within 48 hours from prolonged oxygen therapy by endotracheal tube or tracheostomy. Intubation compromises the oropharynx and trachea by obstructing the normal airway. This allows easier access for microorganisms in gastric and oral secretions to enter the lungs and
Premium Pneumonia Lactobacillus Bacteria