Biochemistry, Biophysics, and Structural Biology Commons^™

Concerning The Site Of Nitrogen Absorption In Rats Fed Autoclaved Or Raw Soybean Oil Mea, Raymond Borchers

Department of Biochemistry: Faculty Publications

Carroll, Hensley, and Graham (1) have concluded that much of the nitrogen absorption in rats fed raw soybean oil meal must take place in the cecum. This conclusion was reached from data showing that the apparent digestibility of raw soybean nitrogen in the terminal 20% of the small intestine was 32.65%, whereas in the feces the value was 76.96%. Values reported, for apparent digestibility of heated soybean nitrogen were 78.66% and 81.78%, respectively. This observation presented a notable advance in explaining the lower nutritive value of raw soybeans compared with autoclaved soybeans. It therefore seemed advisable to repeat this work …

A Metabolic Relationship Between The Aromatic Amino Acids, Joseph F. Nyc, Francis A. Haskins, Herschel K. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

The present work involves a further investigation of a Neurospora mutant, C-86, previously mentioned by Lein, Mitchell and Houlahan (1) as one that can utilize anthranilic acid, indole, tryptophan, kynurenine, 3-hydroxyanthranilic acid, and nicotinic acid as supplements for growth. Mutant C-86, when crossed to a “wild-type” strain, was found to differ from this wild type strain, with respect to tryptophan biosynthesis, by a mutation at a single locus. The evidence presented suggests the possibility of a common precursor to the aromatic amino acids.

Pathological Physiology As A Basis For Medical Practice, Walter E. Macpherson

Medical Arts and Sciences: A Scientific Journal of the College of Medical Evangelists

No abstract provided.

Rationalists In Retreat, W. E. Filmer

Stone-Campbell Books

No abstract provided.

Recent Opinions Of Biologists On Evolution: 2nd Edition, Evolution Protest Movement

Stone-Campbell Books

No abstract provided.

Methemoglobin., Herbert Friedman

Electronic Theses and Dissertations

No abstract provided.

Cerebral Anoxia And Its Residuals: Pt. Iii. The Structural Changes, Cyril B. Courville

Medical Arts and Sciences: A Scientific Journal of the College of Medical Evangelists

No abstract provided.

The Circulatory Effects Of Histamine, Fred B. Moor

Medical Arts and Sciences: A Scientific Journal of the College of Medical Evangelists

No abstract provided.

Riboflavin Production By Molds, George L. Peltier, Raymond Borchers

Department of Biochemistry: Faculty Publications

Very little information is at hand regarding the ability of molds to synthesize riboflavin. Few citations pertaining directly to riboflavin production by true

molds are available. Pontovich (1943) found as much as 2 mg riboflavin per g

of Aspergillus flavus mycelium. Tanner et at. (1945) determined the quantity of

riboflavin in the submerged fermentation media of Penicillium chrysogenum.

The highest value found was 1. 36 mg per ml. The primary purpose of this study

was to screen several hundred isolates, recently obtained from soil, crop residues,

and composts, for their ability to produce riboflavin on a wheat bran substrate.

Studies On Synthesis By Enzymatic Catalysis., Charles Henry Wabnitz 1916-2004

Electronic Theses and Dissertations

No abstract provided.

The Effect Of Adrenaline Injection On Glycogenolysis And Glycogenesis In Rat Livers, Virginia Mary Zingsheim

Bachelors’ Theses

Present day knowledge concerning the liver is derived from many sources and the accumulation of many methods of investigation. Sugar, which is needed by the body for energy, is stored in the liver as glycogen. Claude Bernard (26), an eminent physiologist, was the first to suspect that carbohydrates were stored in the liver. Faulty glycogen synthesis and hydrolysis results in one of our most widespread diseases, diabetes. Thus, many biochemists and physiologists have tried to find the mechanism of the process, and the primary and secondary facts which affect glycogenesis and glycogenolysis. Although the chemical secretions and hormones of such …

A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006

Electronic Theses and Dissertations

No abstract provided.

The Study Of The Effects Of Paradichlorbenzene On Drosophila Melanogaster, Dwain J. Paal

Bachelors’ Theses

The object of this investigation was to produce polyploid cells in the salivary glands of Drosophila melanogaster by treatment with paradichlorbenzene. Polyploidy is the condition in which the number of chromosomes in the nucleus is an exact multiple of the somatic or diploid number greater than two. This phenomena has often been referred to as produced by incomplete nuclear division.

Threonine Deficiency In Hydrolysates Of Zein Prepared By Autoclaving, Raymond Borchers, John R. Totter, Clarence P. Berg

Department of Biochemistry: Faculty Publications

In a previous paper (Borchers and Berg, 1942) we showed that

autoclaving zein with sulfuric acid longer than necessary for complete

hydrolysis causes destruction and racemization; either of

these might account for the failure of such a hydrolysate to

promote growth in young rats when substituted for a hvdrolysate,

prepared by refiuxing, in a diet which produced moderate growth.

It seemed to us that this deterioration in the dietary protein might

well be the result primarily of essential amino acid deficiencies

which could be detected and overcome by appropriate supplementation.

Because threonine is known to be present in zein in …

The Effect Of Conditions Of Hydrolysis And Of Prolonged Heating Upon The Optical Rotation Of Sulfuric Acid Hydrolysates Of Zein, Raymond Borchers, Clarence P. Berg

Department of Biochemistry: Faculty Publications

Some time ago we observed that a sulfuric acid hydrolysate of zein prepared in an autoclave at 165˚ did not support growth in young rats when it was supplemented with certain amino acids, even though the same amino acids, added to a hydrolysate prepared by refluxing, permitted moderate growth. Since the optical rotation of the autoclaved hydrolysate was lower than that of the refluxed, either destruction or racemization of essential constituents, or both, might have occurred. Loss of amino nitrogen and production of extra ammonia upon prolonged autoclaving of proteins with acids have been noted by Van Slyke (1912) …

Tryptophane Metabolism X. The Effect Of Feeding 1(-)-, Dl-, And D(+)-Tryptophane, D(-)And Dl-(Β-3-Indolelactic Acid,(Β-3-Indolepyruvic Acid, And L(-)Kynurenine Upon The Storage Of Liver Glycogen And The Urinary Output Of Kynurenic Acid, Kynurenine, And Total Acetone Bodies, Raymond Borchers, Clarence P. Berg, Newton E. Whitman

Department of Biochemistry: Faculty Publications

The amount of tryptophane required for maintenance and growth is small (2). When an excess is supplied to some animals, kynurenic acid is excreted (3) and, under certain conditions, kynurenine also (4). Although these are quantitatively the most important of the known metabolic products of tryptophane, the amounts excreted in extensive tests in the dog and rabbit have usually accounted for less than half, more often for less than a third, of the tryptophane administered (4-6).

Activated Carbon From Grapefruit Waste., Delbert Van Fletcher 1918-2005

Electronic Theses and Dissertations

No abstract provided.

The Effects Of An Insufficient Carbohydrate Diet On The Leucocytes Of The Normal Albino Rat, Carl Frederick Glienke

Bachelors’ Theses

This thesis deals with the effects of an insufficient carbohydrate diet on the differential counts of the leucocytes of the common albino rat. The experiment was chosen because of the interesting problem it presented and because little could be found on work done regarding it. To the ’writer’s knowledge, very little work has been done in even establishing a definite differential count of a normal rat, much less working on one under an abnormal condition. Because of this lack of information, a normal count was first established for the strain used, and then this count was compared with that of …

A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller

Electronic Theses and Dissertations

No abstract provided.

Anatomy And Histology Of The Digestive Tract Of A Deep-Sea Fish Coelorhynchus Carminatus, Elly M. Jacobsen

University Studies (University of Nebraska) (1888–1984)

This paper deals with the anatomy and histology of the digestive tube of one of the grenadiers or rat-tails, Coelorhynchus carminatus (Goode), as classified by Jordan & Evermann (1896).1 Many studies on the structure of the digestive tracts of fishes have been made in the past, and pioneer work in the teleost group was done by Valatour in 1861, Pillet in 1894 on the Pleuronectidae, and Gulland in 1898 on the salmon. More recent studies have been made by Greene (1912) on the king salmon, Blake 2 (1930) on the sea bass, and Rogick (1931) on the minnow.

The species …

Studies On Nutritional Muscular Dystrophy, I. Dietary Factors, Ii. Fibrosis And Lipomatosis Of Tissues, Violet Myrtle Wilder

Department of Biochemistry: Dissertations, Theses, and Student Research

dissertation published as three peer-reviewed papers:

Sergius Morgulis, Violet M. Wilder, and S. H. Eppstein. (September 1938). Further studies on dietary factors associated with nutritional muscular dystrophy. Journal of Nutrition 16(3): 219-227.

Howard C. Spencer, Sergius Morgulis, and Violet M. Wilder. (August 1937). A micromethod for the determination of gelatin and a study of the collagen content of muscles from normal and dystrophic rabbits. Journal of Biological Chemistry 120(1): 257-266.

Sergius Morgulis, Violet M. Wilder, Howard C. Spencer, and S. H. Eppstein. (August 1938). Studies on the lipid content of normal and dystrophic rabbits. Journal of Biological Chemistry 124(3): 755-766.

A Study Of The Effect Of Rickets Upon The Cholesterol And Fatty Acid Content Of The Brain., Willa Holzheimer 1909-1996

Electronic Theses and Dissertations

No abstract provided.

The Types Of Sterility And Related Phenomena With Special Reference To Convallaria And Tropaeolum Majus, Mary Cecilia

Bachelors’ Theses

The development of superior plants through breeding is one of the chief contributions of America to agriculture. Out of old stock, scientists have developed a large number of new forms with better quality, more productiveness, and greater resistance to disease and adversity. However, the surface has hardly been scratched and possibilities reach in interest are pushing forward the experimentations necessary for success in the science field.

Conjugation Of Various Amino Acids With Insulin In Liquid Ammonia, Charles Jon Caul

Master's Theses

No abstract provided.

Reduction Products Of D-Glucoheptulose, Stanley John Kuman

Master's Theses

No abstract provided.

A Study Of Methods Of Determining The Rate Of Acid Hydrolysis Of Wheat Gluten, Angus V. Henrickson

University of the Pacific Theses and Dissertations

Because of the nutritious value of sodium glutamate and its meat-Like flavor, won 18 very pleasing to most people, and hence Its demand if it were properly promoted, and because of the abundance of protein in accessible form for its manufacture, it is only reasonable to assume that if too optimum continuous of protein hydrolysis were found, tho manufacturing metnous could be made a.highly successful enterprise.

Reactions Of D-Glucuronic Acid And Its Derivatives, Edward John Kubicz

Master's Theses

No abstract provided.

The Role Of Membranes And Phase Boundaries In Generating Electric Currents In Living Tissues., Norman E. Epstein

Electronic Theses and Dissertations

No abstract provided.

Effect Of Calcium Chloride, Acid, And Alkali On Irritability And Conductivity Of Nerves Locally Cooled, Dominic Baima

Master's Theses

No abstract provided.

Reactions Of Synthesis Of Methyl D-Glucuronide, Edward J. Czalgoszerski

Master's Theses

No abstract provided.