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Filtering by: Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.) Subject Streptococcus Remove constraint Subject: Streptococcus

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Nutritional requirements of bacteriophage-sensitive and bacteriophage-resistant strains of lactic streptococci

Creator:

Parker, Richard Bennett

Resource Type:

Masters Thesis
Destruction of lactic acid streptococcus bacteriophage by various bactericidal agents

Creator:

Watkins, Sprague Hammond

Resource Type:

Masters Thesis
Enzymatic analysis of mutant and wild type lactic streptococcus organisms developing on a selective medium

Creator:

Turner, Nikki Edwards

Resource Type:

Masters Thesis
Studies on transformation in streptococci

Creator:

Brown, Willie Claiborne

Resource Type:

Masters Thesis
Studies on mutation and lactose fermentation in lactic streptococci

Creator:

Wagner, Sally Ann

Abstract:

This study involved an investigation of lactic streptococci which had irreversibly lost ability to produce the high levels of acid in milk necessary during the manufacture of certain fermented dairy products. The slow acid producing mutants studied were obtained from a normal acid producing strain by natural selection following induction...

Resource Type:

Masters Thesis
Studies on the inhibition of spoilage organisms in Cottage cheese by lactic streptococcus organisms

Creator:

Hauser, Bruce Allen

Abstract:

A report in the literature suggesting that the use of cottage cheese dressing cultured with S. diacetilactis would afford enhanced flavor and shelf life in the finished product prompted this study to examine reasons for its effectiveness. The method used involved addition of a culture of S. diacetilactis 18-16 to...

Resource Type:

Masters Thesis
Metabolism of aroma bacteria as related to diacetyl production

Creator:

Brown, Ruth Elaine

Abstract:

Factors influencing diacetyl production by the aroma bacteria Leuconostoc citrovorum and Streptococcus diacetilactis were investigated. When grown in association with lactic streptococci, L. citrovorum strain 91404 decreased in cell numbers from 10⁸ to 10⁶ over two weeks of daily subculturing in sterile non-fat milk incubated at 21°C. The ability to...

Resource Type:

Masters Thesis
The inhibitory effect of Streptococcus diacetilactis on the growth of Staphylococcus aureus in milk and vanilla cream filling

Creator:

Radich, Ruth Elaine

Abstract:

Trypticase-Soy Broth (TSB) was inoculated with Streptococcus diacetilactis, incubated at 21C for 24 hours and centrifuged to remove the cells. When the spent TSB was inoculated with Staphylococcus aureus, it allowed 99.8% less growth than fresh TSB. If the spent TSB were supplemented with 0.08 μg/ml of niacinamide, this inhibition...

Resource Type:

Masters Thesis
A study of the Micrococci and Streptococci in relation to infectious mastitis in dairy cows

Creator:

Sprague, Aileen

Resource Type:

Masters Thesis
Lactic streptococci: growth characteristics and plasmid profiles of drug- and bacteriophage-insensitive mutants

Creator:

Wulf, John J.

Abstract:

Fast acid-producing streptomycin-resistant mutants for several strains of lactic streptococci currently used in commercial Cheddar cheese manufacture were isolated. Their isolation involved use of a recently developed differential plating medium that allows identification of fast acid-producing colonies. Both parents and mutants were characterized with regard to growth, acid production, proteolytic...

Resource Type:

Masters Thesis

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Academic Affiliation

Microbiology4
Microbiology and Hygiene3
Bacteriology and Hygiene2
Bacteriology1
Food Science and Technology1

Advisor

Sandine, William E.4
Sandine, W. E.3
Elliker, Paul R.2
Lindsay, Robert C.1
Simmons, Joseph E.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1930 to 1981

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Creator

Bodyfelt, F. W.1
Brown, Ruth Elaine1
Brown, Willie Claiborne1
Hauser, Bruce Allen1
Parker, Richard Bennett1
more Creators »

Date

Date range begin – Date range end

Current results range from 1930 to 1981

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Decade

1980-19891
1960-19697
1950-19592
1930-19391

Degree Field

Microbiology4
Bacteriology3
Microbiology and Hygiene3
Food Science1

Degree Level

Master's11

Degree Name

Master of Science (M.S.)[remove]11

Language

English [eng]11

Non-Academic Affiliation

Oregon State University. Graduate School11

Peer Reviewed

No11

Resource Type

Masters Thesis11

Rights Statement

Copyright Not Evaluated11

Subject

Streptococcus[remove]11
Dairy microbiology3
Bacteriophages2
Bacteriology -- Cultures and culture media1
Cheese -- Microbiology1
more Subjects »

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