PDF4PRO ⚡AMP

Modern search engine that looking for books and documents around the web

Example: tourism industry

BACTERIAL ENUMERATION

33 BACTERIAL ENUMERATIONIn the study of microbiology, there are numerous occasions when it isnecessary to either estimate or determine the number of BACTERIAL cells in a brothculture or liquid medium. Determination of cell numbers can be accomplished bya number of direct or indirect methods. The methods include standard platecounts, turbidimetric measurements, visual comparison of turbidity with a knownstandard, direct microscopic counts, cell mass determination, and measurementof cellular activity. In this exercise, you will compare three methods of bacterialenumeration: the standard plate count , turbidimetric measurement and directmicroscopic plate count (Viable Counts)A viable cell is defined as a cell which is able to divide and form apopulation (or colony).

next lab period, count the number of colonies on each plate, calculate an average and record results. 2. Compare results from the standard plate counts with P-H direct microscopic counts. 3. Compare results from the standard plate counts and direct microscopic counts with that of optical density while considering the graph provided.

Fullscreen Download
Loading..

Tags:

  Bacterial, Plate, Count, Enumeration, Bacterial enumeration

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Spam in document Broken preview Other abuse

Transcription of BACTERIAL ENUMERATION

Documents from same domain

ISOLATION OF PURE CULTURES

fire.biol.wwu.edu

Exposure of sterile media to the environment will demonstrate the importance of aseptic technique. 1. Label two nutrient agar plates as "Exposure I" and "Exposure II." 2. Uncover the plate marked "Exposure I" and allow it to remain exposed in the lab for about 5 minutes. 3. Expose the plate marked "Exposure II" to a source of possible contaminants.

  Media, Technique, Aseptic, Aseptic technique

SELECTIVE AND DIFFERENTIAL MEDIA - …

fire.biol.wwu.edu

50 EOSIN METHYLENE BLUE AGAR (EMB agar) Eosin methylene blue agar is a differential medium used for the detection and isolation of Gram-negative intestinal pathogens. A combination of eosin and

  Media, Agar, Selective, Differential, Selective and differential media

Grand Canyon of the Colorado - OpenWebMail

fire.biol.wwu.edu

2 The Grand Canyon, one of the deepest canyons in the world with a depth of 1 mile (1.6 km), can be seen in this spectacular photograph taken from the space shuttle.

  Canyon, Colorado, Grand, Grand canyon of the colorado, The grand canyon

Lecture Notes for Biology 101: An Introduction to Science ...

fire.biol.wwu.edu

Lecture Notes for Biology 101: An Introduction to Science and Biology for Non-Majors Instructor David L. Alles ... coherent picture of life on Earth. Because life on Earth is an effectively closed historical system, we must understand that biology is an historical science. One result of …

  Lecture, Notes, Earth, Introduction, Sciences, Biology, Lecture notes for biology 101, An introduction to science

Mutation or polymorphism? - OpenWebMail

fire.biol.wwu.edu

Mutation or polymorphism? 20/3/03. BY RICHARD TWYMAN Welcome trust ... In Caucasian populations this is a rare sequence variant of the beta-globin gene that causes a severely debilitating blood disorder. In certain parts of Africa, however, the same allele is polymorphic because it confers resistance to the ...

  Mutation, Polymorphisms, Variant, Mutation or polymorphism

The Evolution of the Universe - OpenWebMail

fire.biol.wwu.edu

the evolution of the universe. The four key observational successes of the model are: The Expansion of the Universe Nucleosynthesis of the light elements Origin of the cosmic background radiation Formation of galaxies and large-scale structure The Big Bang model makes accurate and scientifically testable hypotheses in each of these ...

  Evolution, Universe, Evolution of the universe

BACTERIAL EXAMINATION OF WATER - OpenWebMail

fire.biol.wwu.edu

83 FIRST PERIOD Material: 1. Nine tubes of double-strength lactose broth 2. 10, 1.0 and 0.1 ml pipets 3. Water samples Procedure: (work in groups of four) Presumptive Test 1. Take a water sample (dilute as instructed in some cases) and inoculate three

  Bacterial, Tests, Water, Examination, Bacterial examination of water

10 things you can do to help biodiversity - en US.ISO8859-1

fire.biol.wwu.edu

Figure 1. Biodiversity is threatened by a variety of global changes resulting from the combined actions of human society. The most direct threats are overharvesting and loss/disturbance of

  Biodiversity

Lecture Notes for Biology 101: An Introduction to Science ...

fire.biol.wwu.edu

The purpose of Part Three is to show how biological knowledge can be integrated into a ... prescriptive statements are statements of ... Reformation with the rejection of the authority of the Catholic Church. 3) Prediction by itself is insufficient to …

  Introduction, Purpose, Testament, Church, Biology, An introduction, For biology 101

Comparing the size of a virus, a bacterium, and a ...

fire.biol.wwu.edu

Mites Vertebrates Soil Birds Cattle Control rats, proper sanitation Control rats, vaccinate Control mites Control rodents, vaccinate domestic animals Sterilize wool, hair, other animal products Control bird imports Vaccinate animal handlers MICROBIAL LIFE , Table 30.1 (Part 4) Sinauer Associates, Inc. Table 30.1 Disease

  Time

Related documents

2.6.12. MICROBIOLOGICAL EXAMINATION OF NON-STERILE ...

uk.vwr-cmd.com

agar medium, such as medium B and the other, intended primarily for the enumeration of fungi, to the surface of asuitableagarmedium,suchas medium C. Incubate the plate of agar medium B at 30-35 °C, and the plate of agar medium C at 20-25 °C, for 5 days, unless a reliable count is obtained in a shorter time. Select plates with the highest

  Agar, Plate, Count

ISOLATION OF PURE CULTURES - Biology Department

fire.biol.wwu.edu

A. Spread Plate Technique 1. Count the number of colonies on each plate and record. DILUTION Red Colonies White Colonies Total Number 10-6 10-7 10-8 B. Streak Plate Technique 1. Observe plates. Did you obtain isolated colonies on the agar plates which were streaked with Serratia marcescens? Which streaking technique do you prefer?

  Agar, Plate, Count

ISPD GUIDELINES/RECOMMENDATIONS

ispd.org

Fungus: Inoculate BHI/blood agar or Sabourod’s agar and IMA plates with the sediment. Wrap plates and incubate in 30°C incubator for 4 weeks. Hematology Effluent polymorphonuclear leukocyte count Count unspun sample using a counting chamber or hemocytometer Cell differential Spin peritoneal effluent sample (200 µL) in a cyto-

  Agar, Count, Count count

2.6.12. MICROBIOLOGICAL EXAMINATION OF NON-STERILE ...

uspbpep.com

enumeration of bacteria, to the surface of a suitable agar medium,suchasmediumBandtheother,intendedprimarily for the enumeration of fungi, to the surface of a suitable agar medium, such as medium C. Incubate the plate of agar mediumBat30°Cto35°C,andtheplateofagarmediumC at 20 °C to 25 °C for five days, unless a …

  Agar, Plate

<61> Microbiological Examination Of Nonsterile Products ...

www.uspnf.com

If growth is inhibited (reduction by a factor greater than 2), thenPlate-Count Methods—Perform plate-count methods at least in modify the procedure for the particular enumeration test to ensureduplicate for each medium, and use the mean count of the result. the validity of the results.

  Plate, Count

Tryptic Soy Agar - BD

legacy.bd.com

The nutritional composition of Tryptic Soy Agar has made it a popular medium for many years. It is the medium specified as Soybean-Casein Digest Agar Medium in the United States Pharmacopeia and in the European Pharmacopeia for the total aerobic microbial count portion

  Agar, Count, Tryptic soy agar, Tryptic

MINISTRY OF HEALTH MALAYSIA MICROBIAL …

www.npra.gov.my

Validation of Total Viable Aerobic Count by Plate Count Method Objective: To demonstrate the ability of the test method to detect microorganisms present in the product Conducted in the presence & absence of product Spiked known number of microorganisms (to obtain an inoculum of NMT 100 CFU. The volume of the suspension of the

  Plate, Count, Plate count

Related search queries

Agar, Plate, Count, Count Count, Tryptic Soy Agar, Plate Count