Index Catalog // ScholarsArchive@OSU

Antimicrobial resistance and plasmid properties of Leuconostoc and group N Streptococcus

Creator:: Orberg, Paulo K.
Abstract:: A method for rapid isolation of plasmid DNA from group N streptococci was developed. Chief advantages of the method were simplicity, the utilization of microliter quantities of reagents, and the obtainment of preparations highly enriched for covalently closed circular plasmid DNA. The method was also applied to over 15 Leuconostoc...
Resource Type:: Dissertation
Full Text:: Streptococci Paulo K. Orberg and William E. Sandine Department of Microbiology Oregon State University

Pathways and enzymes involved in glucose catabolism by lactic streptococci

Creator:: Nandan, Rajiva
Abstract:: The enzymes and pathways involved in the catabolism of glucose by several strains of Streptococcus diacetilactis, Streptococcus cremoris, and Streptococcus lactis, commonly called the lactic streptococci, were studied. The presence of aldolase, triosephosphate isomerase and alcohol dehydrogenase in these organisms provided evidence for the operation of the Embden-Meyerhof-Parnas (EMP) pathway...
Resource Type:: Dissertation
Full Text:: IN GLUCOSE CATABOLISM BY LACTIC STREPTOCOCCI Abstract approved: Dr. William E. Sandine The

Development of an internal pH-controlled, phage inhibitory bulk starter medium for the propagation of thermophilic lactic acid bacteria used in the production of mozzarella cheese

Creator:: Whitehead, William E.
Resource Type:: Dissertation
Full Text:: mozzarella cheese AN ABSTRACT OF THE THESIS OF William E. Whitehead for the degree of Doctor of Philosophy

Development and use of genetic techniques for study of dairy Leuconostoc bacteria

Creator:: Wyckoff, Herbert Allen, 1961-
Resource Type:: Dissertation
Full Text:: Techniques for Study of Dairy Leuconostoc Bacteria Abstract approved William E. Sandine A high frequency

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

Creator:: Tsai, Huai-jen
Abstract:: Mutants of Streptococcus lactis 7962 with various combinations of plasmid molecular masses were screened for nisin production. Nisin was produced by both wild type and mutants that contained a 17.5 Md plasmid, which was usually obscured by the chromosomal fragments. No nisin was produced by plasmid-free mutants. Sucrose fermentation and...
Resource Type:: Dissertation
Full Text:: approved: William E. Sandine Mutants of Streptococcus lactis 7962 with various combinations of plasmid

Host range and chemical composition of lactic streptococcal bacteriophages

Creator:: Henning, David Ralph
Abstract:: Comparisons were made of the abilities of Streptococcus lactis, Streptococcus cremoris and Streptococcus diacetilactis bacteriophages to endure various laboratory isolation and storage treatments. Neutralization of Cottage cheese whey containing phages offered no survival advantage over unneutralized samples, refrigeration of neutral and acid whey samples increased the survival of only the...
Resource Type:: Dissertation
Full Text:: 18 Percent Neutralization, K Value and Relative K Value for Phages Tested with Antiserum Prepared

Effect of selected lactic acid bacteria on the growth of food-borne pathogens and spoilage microorganisms in raw milk and milk products

Creator:: Al-Zoreky, Nageb
Abstract:: Several lactic acid bacteria (LAB) of the Lactococcus, Lactobacillus, Leuconostoc and Pediococcus genera were screened for inhibition of food-borne pathogens and spoilage microorganisms in raw milk and dairy products. Listeria monocytogenes was killed by Lactococcus lactis subsp. lactis and Pediococcus pentosaceus due to their production of bacteriocin-type inhibitors. Staphylococcus aureus...
Resource Type:: Dissertation
Full Text:: Spoilage Microorganisms in Raw Milk And Milk Products Abstract Approved: Dr. William E

Application of bacteriocins produced by lactic acid bacteria in preserving dairy products and development of a selective medium for Leuconostoc isolation

Creator:: Benkerroum, Noreddine
Resource Type:: Dissertation
Full Text:: : William E. Sandine Screening lactic acid bacteria for bacteriocin production against Listeria

Studies to improve lactic acid bacterial starter cultures

Creator:: Khosravi, Lewa
Abstract:: Three commercial sausage starter cultures were grown in an internal-pH-controlled medium (PHASE 4) and in a soluble phosphate-buffered medium. The cultures were tested by comparing viable counts before and after freezing at -40 C or freeze-drying and subsequent storage for 3 months in the frozen or dried state. Strains varied...
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy William E. Sandine Three commercial sausage starter cultures were grown

Bacteriophage-host interactions in lactic streptococci : lysogeny, phage inhibition and phage-insensitive mutants

Creator:: Huggins, Alan Roy
Resource Type:: Dissertation
Full Text:: MUTANTS Abstract approved: Redacted for privacy William E. Sandine Phage-host interactions in lactic

ScholarsArchive@OSU

Antimicrobial resistance and plasmid properties of Leuconostoc and group N Streptococcus

Pathways and enzymes involved in glucose catabolism by lactic streptococci

Development of an internal pH-controlled, phage inhibitory bulk starter medium for the propagation of thermophilic lactic acid bacteria used in the production of mozzarella cheese

Development and use of genetic techniques for study of dairy Leuconostoc bacteria

Conjugal transfer of plasmid genes between lactic Streptococcus and Leuconostoc starter bacteria

Host range and chemical composition of lactic streptococcal bacteriophages

Effect of selected lactic acid bacteria on the growth of food-borne pathogens and spoilage microorganisms in raw milk and milk products

Application of bacteriocins produced by lactic acid bacteria in preserving dairy products and development of a selective medium for Leuconostoc isolation

Studies to improve lactic acid bacterial starter cultures

Bacteriophage-host interactions in lactic streptococci : lysogeny, phage inhibition and phage-insensitive mutants

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