Index Catalog // ScholarsArchive@OSU

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Creator:: Piyachomkwan, Kuakoon
Abstract:: Cellulolytic enzymes capable of efficiently degrading crystalline cellulose are a complex mixture of endo- (endoglucanases) and exo-acting (cellobiohydrolases) enzymes. One approach to separating these enzymes is affinity chromatography. A new ligand, p-aminophenyl l-thio-β-D-cellobioside (APTC), is introduced for this purpose. The property of APTC in affinity chromatography is demonstrated using Trichoderma...
Resource Type:: Dissertation
Full Text:: : Interaction of Trichoderma reesei Exo- Acting Cellulases With Immobilized p-Aminophenyl 1-Thio-^-D

Mesurol (methiocarb) residues in grapes and wine and their possible effects on fermentation and wine quality

Creator:: Miller, Frederick Kenton
Abstract:: Wines were made from Pinot Noir and White Riesling grapes which had received field application rates of 2 and 4 lb./acre of the experimental bird repellent Mesurol (methiocarb or 3, 5 dimethyl- 4(methylthio)phenylmethylcarbamate). In addition, Pinot Noir must and press juice and White Riesling press juice were fortified with 15...
Resource Type:: Masters Thesis
Full Text:: FERMENTATION AND WINE QUALITY Abstract approved: D. A. Heatherbell Wines were made from Pinot

Formation of heterocyclic n-nitrosamines from the reaction of nitrite and selected primary diamines and amino acids

Creator:: Warthesen, Joseph John
Abstract:: The reaction of several primary amines with nitrite was investigated with regard to the formation of N-nitrosamines. When reacted in a low moisture system at 160°C with a 1:2 molar ratio of amine to sodium nitrite, various primary amine hydrochloride salts were found to give rise to heterocyclic nitrosamines. The...
Resource Type:: Dissertation
Full Text:: approved: D. D. Bills The reaction of several primary amines with nitrite was investi- gated with

Induction of hepatic microsomal enzymes in rainbow trout by dietary aroclor 1254 and the effect of cyclopropene fatty acids

Creator:: Voss, Sherri Denise
Abstract:: A dietary level of Aroclor 1254 (100 ppm) was fed to rainbow trout (Salmo gairdneri) for 15 weeks to determine the effects on hepatic microsomal enzyme induction. Fish were also fed combined polychlorinated biphenyl (PCB) (100 ppm) and cyclopropene fatty acids (CPFA) (50 ppm) to determine the effects on mixed...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sherri D. Voss for the degree of

An investigation of the effects of nutritional status on the action of insulin in rainbow trout (Salmo gairdneri)

Creator:: Ablett, Richard F.
Abstract:: Three studies were conducted to evaluate the relationship between insulin and nutritional parameters in rainbow trout. In the first study effects on growth parameters and tissue composition of rainbow trout were investigated following injection of bovine insulin at two dose levels every 48 hr for 56 days. In addition, [¹⁴C]-leucine...
Resource Type:: Dissertation
Full Text:: understanding of the associated metabolic and endocrine processes of these species. Prior to this period

Identification of polychlorinated biphenyls by gas-liquid chromatography and ultraviolet degradation

Creator:: Herring, Jeffry Lynn
Resource Type:: Masters Thesis
Full Text:: DEGRADATION Abstract approved: ^ Dr. D. D. Bills In this study the use of gas-liquid chromatography

Do Oak Barrels Contribute To The Variability of The Microbiome of Barrel-Aged Beers?

Creator:: Shayevitz, Avi M.
Abstract:: Lambic and other barrel-aged beer styles are gaining popularity in the United States and Europe and are often treated as a premium product that can command a premium price. However, these styles can be prone to spoilage during the barrel-aging process, which represents a significant time and product commitment by...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ Christopher D. Curtin Lambic and

The use of liposomes as encapsulating agents for feeding juvenile Pacific oysters (Crassostrea gigas)

Creator:: Parker, Robert S.
Abstract:: The ingestion, uptake, and metabolism of liposomes by juvenile Pacific oysters (Crassostrea gigas) were studied by several methods in an effort to assess their potential as encapsulating agents. Liposomes composed of egg phosphatidylcholine-cholesterol-stearylamine (7:1:2) formed readily and appeared stable in 20°/oo seawater. Radiotracer studies with liposomes made with ¹⁴C-labeled cholesterol...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: r D. P. Selivonchick The ingestion, uptake, and metabolism of liposomes by

Development of a High Throughput Method for Screening of Clean-Label Mold Inhibitors in Cheddar Cheese

Creator:: Kornberg, Kaitlyn R.
Abstract:: Mold growth on cheddar-style cheese, though not a food safety issue, causes significant loss to the industry due to consumer rejection. For this reason, it is common for at-risk products, such as cheese shreds, to be coated with the mold inhibitor natamycin. While highly effective at extending shelf-life, preferences for...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Christopher D. Curtin Mold

Chemical analysis of acid precipitated colloid of ripe Bartlett pear juice

Creator:: Chang, Yih Hermon
Resource Type:: Masters Thesis
Full Text:: linked d-galac- turonic acid units. The carboxyl groups of the galacturonic acid are partly

The isolation and characterization of naturally occurring antioxidants in blackstrap, sugarcane molasses

Creator:: Carter, Amanda L.
Resource Type:: Masters Thesis
Full Text:: equilibrated to Aw0.75 for 24hrs prior to each experiment. 24 For each assay, 2.0g fractions of test

Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

Creator:: Pigao, Kevin E.
Abstract:: The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
Resource Type:: Masters Thesis
Full Text:: Christopher D. Curtin The budding yeast Brettanomyces bruxellensis has the potential to spoil

The effects of cyclopropenoid fatty acids on the growth, blood lipids, and viral infectivity of White Leghorn chickens

Creator:: Swanson, Joy Emily
Abstract:: Three studies were designed to evaluate the promoting effect of cyclopropenoid fatty acids (CPFA) on avian myeloblastosis virus (AMV) infection in White Leghorn chickens. In the first study effects on growth parameters, blood serum and erythrocyte lipid composition of White Leghorn chickens were investigated at 100 ppm and 300 ppm...
Resource Type:: Masters Thesis
Full Text:: seed oil by extraction with hexane as described by Kircher (1964). Prior to mixing with diets

Application of Ohmic Heating for Accelerating Fish Sauce Fermentation

Creator:: Kim, Hyung Joo
Abstract:: Fish sauce is a fermented condiment made primarily from anchovies and is popularly used in Asian countries as it provides unique salty and umami flavor. Its consumption is no longer limited to Southeast Asian countries, but extended to Europe, United States and Canada as a condiment in their food. Fish...
Resource Type:: Masters Thesis
Full Text:: , additional fermentation is held using residues from the prior process with the addition of salt water

Accumulation of dietary polychlorinated biphenyl by rainbow trout (Salmo gairdneri)

Creator:: Lieb, Andrew James
Abstract:: This study was conducted to investigate the accumulation of dietary polychlorinated biphenyls (PCB's) by a Mt. Shasta strain of rainbow trout (Salmo gairdneri). A commercial mixture of PCB's (Aroclor 1254) was added to the diet at a level of 15 ppm on a dry weight basis. Accumulation of PCB's was...
Resource Type:: Masters Thesis
Full Text:: gairdneri) Abstract approved: _ _ -( r \^,' D. D. Bills This study was conducted to

Ultrafiltration of grape juice : effects on composition, quality and preservation

Creator:: Fombin, Joseph Forchap
Abstract:: Ultrafiltration (UF), using Romicon pilot-scale hollow-fiber cartridges (Model HFXS-MK11) in the batch mode, was investigated as a possible procedure for clarifying, stabilizing and preserving White Riesling (WR) and Thompson Seedless (ThS) grape juice. The effect of UF processing of SO₂-treated or untreated juice, of process temperature and membrane molecular weight...
Resource Type:: Masters Thesis
Full Text:: : Ultrafiltration of Grape Juice: Effects on Composition, Quality and Preservation Abstract approved: Dr. D

Evaluation of zebrafish (Brachydanio rerio) as a model for carcinogenesis

Creator:: Tsai, Hsi-Wen
Abstract:: Zebrafish (Brachydanio rerio) are small, freshwater teleost fishes in the family Cyprinidae, the true minnows. They are native to the tropical latitudes of India, but have become widespread through their use as aquarium fish and as models for several branches of biological research. Their ease of rearing, short generation time,...
Resource Type:: Dissertation
Full Text:: Zebrafish (Brachydanio rerio) as a model for carcinogenesis. Abstract approved: Jerry D. Hendricks

Effect of sucrose on the production of flavor compounds by yogurt culture bacteria

Creator:: Yang, Chang-su
Abstract:: Organoleptically, flavored yogurts appear to contain lower levels of acetaldehyde than plain yogurt. This study was undertaken to seek the reasons for this phenomenon by focusing on the analyses of acetaldehyde production by yogurt culture bacteria in yogurt base containing added sucrose and by performing other analyses such as the...
Resource Type:: Masters Thesis
Full Text:: BACTERIA Abstract approved: Donald D. Bills Organoleptically, flavored yogurts appear to contain

The influence of dietary fatty acids on tissue lipid composition in rainbow trout (Salmo gairdneri)

Creator:: Greene, Diana H.
Abstract:: The effects of different dietary lipids on the growth, nutrition and tissue lipid profiles of rainbow trout raised to market size on a commercially available ration were examined. Rainbow trout of 80 g mean initial weight were fed pellets prepared according to Oregon Moist Pellet specifications for 20 weeks. Salmon...
Resource Type:: Masters Thesis
Full Text:: choline phosphotransferase. D. Lipogenic Enzymes. In a series of feeding trials designed to

Plasma cholesterol levels, atherosclerosis and liver damage in rabbits fed cyclopropenoid fatty acids

Creator:: Ferguson, Thomas Lyle
Abstract:: In this five-week feeding study male New Zealand rabbits were fed diets containing cyclopropene fatty acids (CPFA), diets containing cholesterol, and diets with both CPFA and cholesterol added to test the effect of CPFA on cholesterol metabolism and atherosclerosis induction. When CPFA-fed animals were compared with control animals, they tended...
Resource Type:: Masters Thesis
Full Text:: FATTY ACIDS _^ _^ ^ , ^ ^ Abstract approved: ^ _^_^_ . D. J. Le^ f In this five

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