Index Catalog // ScholarsArchive@OSU

Studies on control of diacetyl off-flavor in beer

Creator:: Tolls, Terry Norman
Abstract:: Sporadic outbreaks of diacetyl off-flavor in beer are a serious economic problem to the brewing industry. Studies were carried out in an attempt to improve the understanding of the problem and to experiment with new ways of controlling this defect. The Owades and Jakovac method of diacetyl determination as modified...
Resource Type:: Masters Thesis
Full Text:: reductase activity. STUDIES ON CONTROL OF DIACETYL OFF - FLAVOR IN BEER by TERRY NORMAN TOLLS A

The growth of Chlorella vulgaris 211/8K in diluted swine manure as a function of temperature, light intensity, depth, and retention time

Creator:: Seward, Robert Albert
Resource Type:: Masters Thesis
Full Text:: manure as a function of temperature, light intensity, depth, and retention time AN ABSTRACT OF THE

Soil and rumen microbial responses to photooxidized grass straw

Creator:: Park, Jerry Eugene
Abstract:: Straw has many uses, as feed, roughage, animal bedding, but these requirements are not sufficient to utilize the available production. In areas where grasskseed is produced, post-harvest straw is burned in the field to help prevent crop disease the following year. This treatment is very wasteful in terms of straw...
Resource Type:: Masters Thesis
Full Text:: PHOTOOXIDIZEASS,STRAW Redacted for Privacy Abstract approved: Dr. A. Klein Straw has many uses, as feed

Identification of volatiles from a swine center using porous polymers and cold traps

Creator:: Kelly, Michael David
Abstract:: This project was initiated to find a practical way of identifying the volatiles and monitoring their relative concentrations. Special attention was given to the identification of the organic acids. Volatile compounds produced in a swine confinement building were trapped by porous polymers, Porapak Ω and Tenax GC, and identified by...
Resource Type:: Masters Thesis
Full Text:: Identification of volatiles from a swine center using

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Creator:: Gray, Diane R.
Abstract:: Bacterial cultures enriched from sheep rumen fluid have demonstrated the ability to detoxify pyrrolizidine alkaloids (seneciphylline and jacobine) in tansy ragwort (Senecio jacobaea). The microbes are difficult to isolate using classical anaerobic techniques, therefore, microbes from two different enrichment cultures demonstrating similar degradation activity were identified using their 16S ribosomal...
Resource Type:: Masters Thesis
Full Text:: Analysis of Pyrrolizidine Alkaloid Detoxifying Enrichments from the Ovine Rumen Abstract approved: A

Herbicide effects on Bdellovibrio bacteriovorus

Creator:: Wehr, Nancy Briggs
Abstract:: Bdellovibrio bacteriovorus is a small parasitic bacterium present in soil, mud, and aquatic habitats. Due to its lysis of Gramnegative bacteria, an important role in soil ecology has been suggested for this organism. A study of effects of herbicides upon Bdellovibrio might consequently be of considerable value. In this study...
Resource Type:: Masters Thesis
Full Text:: . (Degree) (Date) OVIBRIO BACTERIOVORUS A. Klein Bdellovibrio bacteriovorus is a small parasitic

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Creator:: De Lorme, Marthah J. M.
Abstract:: 2,4,6-Trinitrotoluene (TNT) has been the common munitions used in the world and is an environmental contaminant that is amendable to reductive transformation reactions. The rumen is an extremely reductive environment containing diverse microbial populations. There are 21 pure culture ruminal bacteria species in culture collection, these were tested for the...
Resource Type:: Dissertation
Full Text:: Abstract approved: ________________________________________________ A. Morrie Craig 2,4,6

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Creator:: Tanaree, Dan D.
Abstract:: Cyclic nitramines are a class of compounds that include most of the commonly used explosives today. These are among the most common toxicants released into the environment as a result of human activity, generated on military ranges, battlefields, and production sites. Of these, hexahydro-1,3,5-trinitro-1,3,5- triazine (RDX) is of particular interest,...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ A. Morrie Craig Cyclic nitramines are a class of compounds that include most of the

Susceptibility of select salmonids to Myxobolus cerebralis and effects of exposure on anadromous salmonids in Oregon

Creator:: Sollid, Sarah A.
Abstract:: Myxobolus cerebralis, a myxozoan parasite of salmonids, is the causative agent of whirling disease. The parasite is considered widespread throughout northeastern Oregon in the Grande Ronde and Imnaha River basins where threatened and endangered salmonid populations exist. The work presented in this thesis comprises several studies that assess the effects...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sarah A. Solid for the degree of

Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

Creator:: Klasek, Scott A.
Abstract:: Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Scott A

ScholarsArchive@OSU

Studies on control of diacetyl off-flavor in beer

The growth of Chlorella vulgaris 211/8K in diluted swine manure as a function of temperature, light intensity, depth, and retention time

Soil and rumen microbial responses to photooxidized grass straw

Identification of volatiles from a swine center using porous polymers and cold traps

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Herbicide effects on Bdellovibrio bacteriovorus

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Susceptibility of select salmonids to Myxobolus cerebralis and effects of exposure on anadromous salmonids in Oregon

Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

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