Index Catalog // ScholarsArchive@OSU

Use of alkali in the isolation and preparation of aflatoxins

Creator:: Chen, Tsun-Chieh
Abstract:: The biological preparation of aflatoxins was accomplished by culturing the mold Aspergillus flavus on various media. Aflatoxin was isolated by chloroform extraction of the culture, and purified by column fractionation and crystallization. Rice, wheat, soya bean, peanut and YES media were found to give high yields of aflatoxin. It was...
Resource Type:: Masters Thesis
Full Text:: and produce toxin on fresh tomatoes and grapes. The pure aflatoxins B and G. were treated

Feed conversion, protein utilization and growth of rainbow trout (Salmo gairdneri) fed 25 to 45 percent herring oil

Creator:: Kellems, Richard O.
Abstract:: Triplicate groups of rainbow trout (Salmo gairdneri) fed six diets; five based on fish protein concentrate (FPC) ranging in caloric density from 4.36 to 6.19 kcal/g, and one based on vitamin free casein with a caloric density of 5.26 kcal/g were evaluated with respect to diet ingredient utilization. The parameters...
Resource Type:: Masters Thesis
Full Text:: caloric density from 4. 36 to 6. 19 kcal/g, and one based on vitamin free casein with a caloric

Biological preparation of ¹⁴C labeled aflatoxin

Creator:: Schoenhard, Grant Louis
Abstract:: Selected parameters that affect crude toxin production in both primary culture (growing cell culture) and resting culture were examined during efforts to produce sufficient crude toxin for purification. The parameters included carbohydrate and label source and concentration, cell concentration, incubation time and temperature and shaker speed. A higher yield of...
Resource Type:: Masters Thesis
Full Text:: ^ ^ Abstract approved: // Russell O. Sinnhuber Selected parameters that affect crude toxin production in

Studies of aflatoxin B1 in rainbow trout (Salmo gairdneri) ;|b1. Carcinogenicity and chemical structure : 2. Tissue and subcellular distribution of 14C from aflatoxin B₁-14C

Creator:: Ayres, James Lee
Resource Type:: Dissertation
Full Text:: Abstract approved: ^^^ Russell O. SinJihuber Fingerling rainbow trout (Salmo gairdneri) were fed

Isolation and determination of aflatoxin in cottonseed meal and other feedstuffs

Creator:: Ayres, James Lee
Abstract:: The aflatoxins, carcinogenic and toxic mold metabolites of Aspergillus flavus, were isolated and determined in cottonseed meal and other feedstuffs. This new quantitative method uses an acetone soxhlet extraction to remove the toxins from the defatted meal. The residual triglycerides, phospholipids and pigments were removed from the acetone by filtration...
Resource Type:: Masters Thesis
Full Text:: Vallier ACKNOWLEDGMENT The author wishes to express his appreciation to Professor Russell 0

Malonaldehyde : certain chemical and biological properties

Creator:: Crawford, David Lee
Abstract:: Malonaldehyde, a three carbon dialdehyde, is one of the numerous carbonyl compounds associated with oxidative deterioration of food lipids. It is assumed to be formed as a product of lipid autoxidation occurring according to the generally accepted free radical mechanism. This compound is of great interest because of its potential...
Resource Type:: Dissertation
Full Text:: absorption spectrum of G-MA in water 79 19 Infrared absorption spectrum of G-MA in a. KBr pellet 78 20

Acute toxicity and carcinogenic activity of ochratoxin in rainbow trout (Salmo gairdneri)

Creator:: Doster, Robert Charles
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENT The author wishes to express his appreciation to Professor Russell O. Sinnhuber for his

Determination of the quality of radiation-pasteurized halibut (Hippoglossus stenolepis) during storage

Creator:: Serrano, Lolita Bate
Abstract:: The quality of radiation-pasteurized halibut stored at 34°F was evaluated subjectively and objectively over a period of 18 weeks. Results of flavor evaluation and chemical analyses showed that the storage life of halibut irradiated at 0.50, 0.75 and 1.00 megarad was extended more than threefold. Although irradiated samples were consistently...
Resource Type:: Masters Thesis
Full Text:: following: To Professor Russell O. Sinnhuber for his most able guidance and constant encouragement

Radiation pasteurization of raw and chlortetracycline-treated shrimp

Creator:: Awad, Ahmed Ali
Abstract:: Pasteurization radiation offers a new means of extending the refrigerated storage life of foods. This procedure avoids many of the undesirable changes which result when sterilization radiation is used and still eliminates most of the spoilage organisms. Shrimp was treated with 5 ppm chlortetracycline and subjected to pasteurization levels of...
Resource Type:: Masters Thesis
Full Text:: express his appreciation to Professor Russell O. Sinnhuber for his interest, suggestions and

Dietary protein and aflatoxin B₁ metabolism in rainbow trout (Salmo gairdneri)

Creator:: Stott, William T.
Abstract:: Dietary protein intake has been observed to influence the induction of cancer in animals exposed to carcinogens, presumably by affecting the activities of enzyme systems which metabolize them. One such carcinogen is aflatoxin B₁ (AFB₁) a mold metabolite and frequent contaminant of foodstuffs. Variations in the levels of dietary proteins...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: / Russell 0. S-fnnhuber Dietary protein intake has been observed to influence the

ScholarsArchive@OSU

Use of alkali in the isolation and preparation of aflatoxins

Feed conversion, protein utilization and growth of rainbow trout (Salmo gairdneri) fed 25 to 45 percent herring oil

Biological preparation of ¹⁴C labeled aflatoxin

Studies of aflatoxin B1 in rainbow trout (Salmo gairdneri) ;|b1. Carcinogenicity and chemical structure : 2. Tissue and subcellular distribution of 14C from aflatoxin B₁-14C

Isolation and determination of aflatoxin in cottonseed meal and other feedstuffs

Malonaldehyde : certain chemical and biological properties

Acute toxicity and carcinogenic activity of ochratoxin in rainbow trout (Salmo gairdneri)

Determination of the quality of radiation-pasteurized halibut (Hippoglossus stenolepis) during storage

Radiation pasteurization of raw and chlortetracycline-treated shrimp

Dietary protein and aflatoxin B₁ metabolism in rainbow trout (Salmo gairdneri)

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