series of proportional amounts. Dilutions are usually made in multiples of 10. (3) The viable plate count procedure allowed for live cells in the milk samples to be analyzed. The raw milk (unpasteurized) sample demonstrated too many colony
Premium Milk Pasteurization Dairy product
In the experiment‚ the different growth phases were observed through the analysis of the absorbance of broth with inoculated organism (E.coli). There was no viable cell counting done with the plates because of the failure to count and record the number of viable cells after a 24-hour incubation period. The measurement of absorbance may be used to analyze bacterial growth since the absorbance or the measure of the turbidity is directly proportional
Premium Bacteria Escherichia coli Bacterial growth
Objectives 1. To determine biochemical activities of microorganisms. 2. To observe the product of biochemical activities of microorganisms. 3. To learn the skills of inoculation agar tubes and agar plates. Introduction Microorganisms are able to carry out different biochemical activities with the ease of different enzymes. Each of these enzymes carries out one specific type of the chemical transformation. They convert substrates into product. A) Carbohydrates Fermentation Microorganisms utilize
Premium Bacteria Metabolism Enzyme
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 have been learned so far in the microbiology laboratory class for the identification of an unknown bacterium. Broth culture #72 was randomly selected and subjected to qualitative tests for identification. It is suggested that culture #72 is an example of Serratia marcescens and Micrococcus
Premium Bacteria Microbiology Escherichia coli
References: Bates‚ S.T. and Cropsey‚ G.W. “Bacterial Communities Associated with the Lichen Symbiosis.” Applied Environmental Microbiology‚ 2011‚ vol. 77‚ Issue 4‚ pp 1309-1314. Jobaggy‚ E.G. and Jackson‚ R.B. “The distribution of soil nutrients with depth: Global patterns and the imprint of plants.” Biogeochemistry‚ 2001‚ vol. 53‚ pp 51-77. Pace‚ Norman R.‚ “A Molecular View of
Premium Bacteria Organism Symbiosis
Activity Day 4‚ the plates (4) after 96 hours after incubation For best results‚ avoid the use of flash. Do not remove the lid of the Petri dish. Tilt the plates at slight angle. Activity Day 5‚ the plates (4) after 120 hours after incubation For best results‚ avoid the use of flash. Do not remove the lid of the Petri dish. Tilt the plates at slight angle. Post-lab Questions 1. Was any growth observed on the control plate? What would growth on the control plate indicate about the aseptic
Premium Bacteria Microorganism Organism
groups of enzymes in the bacteria. Ginger will have the least antimicrobial effect. This is because there are not as many chemical reactions with enzymes in the bacteria. Risks: The risks of using Staphylococcus epidermis bacteria to test in microbiology are few. Gloves must be worn while handling Staphylococcus epidermis to reduce any risk of spreading the bacteria. Regarding sterilization and disposal‚ risks include an open flame used to sterilize tweezers as well as chemicals used for disposal
Premium Spice Water Ginger
Project 1: Antimicrobial Activity of Soil Isolates John Franklin Farrar Department of Biology and Microbiology and Biology Address BOX 22750 BOWEN HALL‚ RALEIGH‚ NC‚ 27607 Abstract: Isolation and characterization of microorganisms is a practice that aids in Increasing ones knowledge of a laboratory setting and it helps improve on Using sterile technique. Isolates of soil microbes can be categorized and Characterized based on a number of criteria ranging from gram-staining
Premium Bacteria Microorganism Microbiology
to gushing problems Hammond‚ J.‚ Brennan‚ M. and Price‚ A. (1999). The control of microbial spoilage of beer. Harper‚ D.R. (1981). Microbial contamination of draught beer in public houses. Proc. Harper‚ D.R.‚ Hough‚ J.S. and Young‚ T.W. (1980). Microbiology of beer dispensing systems Hayashi‚ N.‚ Ito‚ M.‚ Horiike‚ S. and Taguchi‚ H. (2001). Molecular cloning of a putative divalent-cation transporter gene as a new genetic marker for the identification of Henrikkson‚ E. and Haikara‚ A. (1991). Airborne
Premium Brewing
Discussion After doing a series of different biochemical tests for the isolated organisim from the sputum sample‚ it was concluded that the unknown Gram positive organism was Streptococcus pyogenes. The sputum sample was first inoculated in the agar plates MAC‚ SBAP‚ CHOC and also a direct gram stain of the sample was performed. After a day of incubation‚ the MAC agar gave a negative result‚ therefore it is not a Gram-negative bacteria and non-lactose fermenting. The SBAP and CHOC showed growth of colonies
Premium Bacteria Microbiology Staining