Index Catalog // ScholarsArchive@OSU

The effect of erythorbic acid on the determination of ascorbic acid levels in selected foods by high performance liquid chromatography and spectrophotometry

Creator:: Tuan, Shenhsiu
Abstract:: A high performance liquid chromatography (HPLC) procedure using a LiChrosorb-NH₂ column and a eluant buffer of 75:25 (v/v) of acetonitrile:0.05 M KH₂P0₄, pH 5.95, was developed for the successful separation and determination of ascorbic and erythorbic acids in selected food samples. Application of the method, which is sensitive, rapid and...
Resource Type:: Masters Thesis
Full Text:: , natural and artificial flavor drink mixes, and Hi-C drinks gave satisfactory results. Dehydroascorbic

Iron availability from corn tortillas and cooked beans (Phaseolus vulgaris) : a study on the effect of fiber

Creator:: Garcia-Lopez, Jesus Salvador
Abstract:: Absorption of iron from foods has been reported to be inhibited by various factors including some diet components. Fiber from different sources has been observed to bind ferrous iron. This may be the reason for iron deficiencies observed in populations that consume diets high in non-digestible materials. The effect of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF J. Salvador Garcia-Lopez for the

Ultrafiltration of grape juice by hollow fiber membranes

Creator:: Garcia-Quintero, Zeferino Heberto
Abstract:: The feasibility of using hollow fiber ultrafi1tration for clarification, stabilization and preservation of white grape juice was evaluated. Flux and process parameters of a hollow fiber membrane ultrafi1tration unit (Romicon pilot scale, model FXS-MXII), were studied using white Riesling grape juice. Optimum processing conditions were determined for different nominal membrane...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Zeferino H. Garcia-Quintero for

The relationship between the gut and the water-electrolyte balance of a marine teleost, Enophrys bison (Girard)

Creator:: Sleet, Randolph Bullock
Abstract:: In higher vertebrates, normal digestion and absorption by the gastrointestinal tract are dependent on the orderly and controlled transit of intraluminal contents. A relationship between fluid passage through the gut and absorption from the gut has yet to be examined in fish. In marine teleosts, the osmolality and ion concentration...
Resource Type:: Dissertation
Full Text:: scientific development. Appreciation is also due to Drs. C. Bond and T. Lais for serving as members of my

Sex stereotypes in Thai elementary school textbooks

Creator:: Pobsook, Thanitthar
Abstract:: This study analyzed Thai textbooks as a dimension of research on sex-role stereotypes in Thailand. One hundred and sixty-two stories in Thai elementary school textbooks were investigated, using both quantitative and qualitative methods of content analysis. This study was a modified replication of Britton and Lumpkin's study (1977) and partly...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Dr. Charles C. 191hgford This study analyzed Thai textbooks as a dimension

Grazing behavior and distribution of cattle on mountain rangelands

Creator:: Gillen, Robert L.
Abstract:: Several aspects of cattle grazing behavior and distribution were studied on mountain rangeland dominated by ponderosa pine- Douglas fir, mixed conifer, and white fir forest communities in northeastern Oregon. The association between upland distribution, determined by forage utilization and by direct cattle observation, and several habitat factors was studied through...
Resource Type:: Dissertation
Full Text:: MOUNTAIN RANGELANDS ,/ Redacted for privacyAbstract approved: W. C. Krueger Several aspects of cattle

Storm runoff characteristics of various plant communities within the Oregon Range Validation Area

Creator:: Gaither, Ronald E.
Abstract:: A sediment production and infiltration study was conducted within the Oregon Range Validation Project Work Area in east-central Oregon during the summers of 1977 and 1978. High intensity rainfall was simulated by using a Rocky Mountain Infiltrometer. This sprinkler-type infiltrometer closely approximates conditions associated with natural rainfall. The basic ecological...
Resource Type:: Masters Thesis
Full Text:: . John C. Buckhouse who has served not only as my major professor but also as friend and "family

In vitro culture of Coffea species

Creator:: Coyne, Clarice Jean
Resource Type:: Masters Thesis
Full Text:: Culture of Coffea Species Abstract approved: . Dr. Machteld C. Mok The major cultivated form of

Evaluation of liquefied fish as ruminants feed

Creator:: Shqueir, Adnan Ali
Resource Type:: Dissertation
Full Text:: Abstract approved: D. C. Chuich The potential use of liquefied fish as a feed ingredient for ruminants

Site-specific labeling of the cardiac glycoside receptor Na⁺,K⁺-ATPase : synthesis of a C-17 side group photoaffinity label ; Relationship of cardioactive steroid structure and conformation to biological activity

Creator:: Deffo, Tamboue Esaie
Abstract:: In an effort to isolate and characterize cardiac glycosides C-17 binding site(s), we have synthesized different affinity and photoaffinity C-17 side chain probes. These probes were screened for their ability to inhibit Na⁺,K⁺-ATPase enzyme, a pharmacological receptor of cardiac glycosides. The enzyme was isolated from hog kidney. Screening of these...
Resource Type:: Dissertation
Full Text:: Na+,K+-ATPase : synthesis of a C-17 side group photoaffinity label ; Relationship of cardioactive

ScholarsArchive@OSU

The effect of erythorbic acid on the determination of ascorbic acid levels in selected foods by high performance liquid chromatography and spectrophotometry

Iron availability from corn tortillas and cooked beans (Phaseolus vulgaris) : a study on the effect of fiber

Ultrafiltration of grape juice by hollow fiber membranes

The relationship between the gut and the water-electrolyte balance of a marine teleost, Enophrys bison (Girard)

Sex stereotypes in Thai elementary school textbooks

Grazing behavior and distribution of cattle on mountain rangelands

Storm runoff characteristics of various plant communities within the Oregon Range Validation Area

In vitro culture of Coffea species

Evaluation of liquefied fish as ruminants feed

Site-specific labeling of the cardiac glycoside receptor Na⁺,K⁺-ATPase : synthesis of a C-17 side group photoaffinity label ; Relationship of cardioactive steroid structure and conformation to biological activity

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