Index Catalog // ScholarsArchive@OSU

A study of antimutagenicity in yogurt

Creator:: Sudarshan, Nadathur R.
Abstract:: The purpose of this study was to identify antimutagens in yogurt active against the experimental colon carcinogen, N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). Our initial experiments showed that acetone extracts of yogurt, or milk fermented by various lactic acid bacteria were antimutagenic against MNNG and 3,2'-dimethyl-4-aminobiphenyl (DMAB) in the Ames test (Salmonella typhimurium TA...
Resource Type:: Dissertation

A study of nisin resistance in Listeria monocytogenes Scott A

Creator:: Ming, Xintian
Abstract:: Eight foodborne pathogenic and spoilage Gram-positive bacteria were evaluated for their spontaneous resistance frequencies to the peptide antimicrobial nisin. In brain heart infusion (BHI) medium, nisin resistance frequencies were in the range of l06 to l08 when exposed to nisin at concentrations 2 to 4 times the minimal inhibitory concentrations....
Resource Type:: Dissertation

Addressing sodium reduction and pathogen internalization in non-intact whole muscle beef : evaluation of dehydrated collagen and hydrostatic pressure as impact technologies

Creator:: Lowder, Austin Cole
Abstract:: These studies focused on maximizing the nutrition and safety of raw whole muscle beef while minimizing quality and shelf-life alteration. The first study used response surface methodology to predict fluid loss from injected beef strip loins and steaks as influenced by levels of salt and sodium phosphates (SP) in the...
Resource Type:: Dissertation

Aflatoxin B₁ metabolism by rainbow trout (Salmo gairdneri)

Creator:: Schoenhard, Grant Louis
Abstract:: Aflatoxins B₁, Q₁ and aflatoxicol, R [subscript o] F, but not B₂ were activated in the presence of NADPH by the 105,000 x g pellet from rainbow trout (Salmo gairdneri), Mt. Shasta strain, liver to products lethal to Bacillus subtilis GSY 1057 (metB4, hisAl, uvr-1). Electron microscopy confirmed the microsomal...
Resource Type:: Dissertation

Aflatoxin mutagenesis and metabolism and their dietary modification in rainbow trout (Salmo gairdneri)

Creator:: Coulombe, Roger A.
Abstract:: Aflatoxin B₁ (AFB₁) is a mold-produced toxin which has been shown to be a potent hepatocarcinogen in many animal species. Of the species studied thus far, rainbow trout have proven to be the most sensitive. Experiments were conducted to investigate various aspects of AFB₁ metabolism in this species, including in...
Resource Type:: Dissertation

Alteration in levels and synthesis of proteins in trout hepatocytes due to dietary cyclopropenoid fatty acid[s]

Creator:: Perdew, Gary H.
Abstract:: Cyclopropenoid fatty acids (CPFA) are unique compounds that contain a highly strained and reactive cyclopropene ring structure. These compounds have been shown to cause a number of toxic effects in a variety of animals. Rainbow trout (Salmo gairdneri) have proven to be particularly sensitive to CPFA. Studies have revealed that...
Resource Type:: Dissertation

Alteration of certain physiological and biochemical parameters in livers of rainbow trout fed methyl sterculate

Creator:: Struthers, Barbara Oft
Abstract:: The cyclopropene fatty acids, sterculic and malvalic, occur naturally in a major food lipid, cottonseed oil, and have been implicated in several physiological disorders. Rainbow trout in this study were fed semipurified diets containing 200 or 300 ppm methyl sterculate, and the effects on hepatic lipid and glycogen levels, lipid...
Resource Type:: Dissertation

An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder

Creator:: Spence, Amy J.
Abstract:: The milk fat globule membrane, a major component in buttermilk, contains many complex lipids known to be involved in a variety of biological processes. Phospholipids, including sphingolipids, exhibit antioxidative, anticarcinogenic, and antiatherogenic properties and have essential roles in numerous cell functions. Filtration coupled with supercritical fluid extraction (SFE) may provide...
Resource Type:: Dissertation

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

Analysis of N-nitrosamines and nitramines in foods and herbicides

Creator:: Hotchkiss, Joseph H.
Resource Type:: Dissertation

ScholarsArchive@OSU

A study of antimutagenicity in yogurt

A study of nisin resistance in Listeria monocytogenes Scott A

Addressing sodium reduction and pathogen internalization in non-intact whole muscle beef : evaluation of dehydrated collagen and hydrostatic pressure as impact technologies

Aflatoxin B₁ metabolism by rainbow trout (Salmo gairdneri)

Aflatoxin mutagenesis and metabolism and their dietary modification in rainbow trout (Salmo gairdneri)

Alteration in levels and synthesis of proteins in trout hepatocytes due to dietary cyclopropenoid fatty acid[s]

Alteration of certain physiological and biochemical parameters in livers of rainbow trout fed methyl sterculate

An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder

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

Analysis of N-nitrosamines and nitramines in foods and herbicides

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