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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Studies on the minor components of fatty oils corn and sabadilla /

Luker, William Dean. January 1955 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 60-64).
2

Effects of replacing fish oil with linseed oil or corn oil on growth, fatty acid metabolism and immune responses of juvenile cobia Rachycentron canadum

Chen, Wei-chih 19 July 2006 (has links)
The effects of partial or total replacement of fish oil with linseed oil or corn oil or both in diets of cobia were valuated. Basal diet was isonitrogenous and isoenergetic and contained 15% crude lipid. Results of the 8-wk feeding trial show that fish fed diet containing only fish oil grew significant better than fish fed other replacement diets (replacement level 33-100%). Fish fed diet containing only plant oil grew the least and had the lowest liver weight, condition factor and body lipid concentration. Oil replacement did not significantly change liver mRNA gene expression of fatty acid desaturase and elongase. As levels of replacement increased, tissue PUFA increased while HUFA decreased. Fish fed all fish oil diet had the highest respiratory burst activities of head kidney phagocytes. Serum of the fish fed the all vegetable oil diets had the lowest lysozyme activities. Fish fed all linseed oil diet had the highest SOD activities. Serum alternative complement pathway activity, aspartate transaminase and alanine transaminase activity did not vary among treatments. The results show that cobia juveniles had relatively high need for fish oil in their diets, and the ability to synthesized HUFA from PUFA was limited. Partial or total replacement (33-100%) of fish oil with linseed oil or corn oil or both were detrimental to fish growth and immune responses.
3

The utilization of corn germ oilmeal protein by the rat.

Oranyeli, Christopher Obiora. January 1964 (has links)
Missing pg.124. / One of the major health problems confronting the emerging nations of the world today is how to obtain a cheap source of high quality protein. Milk, eggs and other proteins of animal origin are the more expensive items of the diet everywhere, and more so in the tropics because of the environmental limitations set on livestock productivity in these countries. Nature has, on the other hand, equipped these countries with highly diversified, nutritionally unexplored protein sources of vegetable origin. [...]
4

Proteomics study of the effects of fish oil and corn oil enriched diet on membranous nephritis

Ye, Yisha. January 2008 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Includes bibliographical references (leaf 131-149) Also available in print.
5

The utilization of corn germ oilmeal protein by the rat.

Oranyeli, Christopher Obiora. January 1964 (has links)
Missing pg.124.
6

Effect of fried lard and corn oil on blood cholesterol in hamsters.

January 2008 (has links)
Tan, Sijiao. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 118-136). / Abstracts in English and Chinese. / Acknowledgements --- p.i / Abstract (in English) --- p.iii / Abstract (in Chinese) --- p.vi / List of Abbreviations --- p.viii / Table of Contents --- p.x / Chapter CHAPTER 1 --- INTRODUCTION / Chapter 1.1 --- Frying --- p.1 / Chapter 1.1.1 --- General introduction of frying --- p.1 / Chapter 1.1.2 --- Physical and chemical changes of oils during frying --- p.2 / Chapter 1.1.2.1 --- Physical changes --- p.2 / Chapter 1.1.2.2 --- Chemical changes --- p.5 / Chapter 1.1.2.2.1 --- Hydrolysis --- p.5 / Chapter 1.1.2.2.2 --- Oxidation --- p.5 / Chapter 1.1.2.2.3 --- Polymerization --- p.6 / Chapter 1.1.3 --- Frying oil selection --- p.11 / Chapter 1.1.4 --- Quality control of frying oil --- p.11 / Chapter 1.2 --- Selection of experiment oil --- p.13 / Chapter 1.2.1 --- Lard as a cholesterol-containing animal fat --- p.13 / Chapter 1.2.2 --- Corn oil as a healthy vegetable oil --- p.14 / Chapter 1.3 --- Current studies on frying oils --- p.18 / Chapter 1.4 --- Atherosclerosis and cholesterol metabolism --- p.19 / Chapter 1.4.1 --- Atherosclerosis --- p.19 / Chapter 1.4.2 --- Cholesterol metabolism and related regulating factor --- p.23 / Chapter 1.5 --- Animal model selection --- p.29 / Chapter CHAPTER 2 --- OBEJECTIVES --- p.30 / Chapter CHAPTER 3 --- MATERIALS AND METHODS / Chapter 3.1 --- Sample lard and corn oil preparation --- p.31 / Chapter 3.2 --- Diet preparation --- p.34 / Chapter 3.3 --- Animals --- p.36 / Chapter 3.4 --- Sample collection --- p.36 / Chapter 3.5 --- GC analysis of fatty acid composition in fresh and fried experiment oil samples --- p.37 / Chapter 3.6 --- Determination of plasma cholesterol and organ cholesterol --- p.41 / Chapter 3.7 --- "Determination of hamster fecal neutral and acidic sterols, corn oil phytosterol content" --- p.44 / Chapter 3.7.1 --- Determination of fecal neutral sterols --- p.44 / Chapter 3.7.2 --- Determination of fecal acidic sterols --- p.45 / Chapter 3.7.3 --- Determination of phytosterol content in corn oil --- p.46 / Chapter 3.8 --- "Determination of composition and concentration of liver triglycerides, total free fatty acids and phospholipids" --- p.51 / Chapter 3.9 --- Statistics --- p.54 / Chapter CHAPTER 4 --- RESULTS IN FRIED LARD EXPERIMENT / Chapter 4.1 --- Fatty acid composition and cholesterol content of experiment lard --- p.55 / Chapter 4.2 --- Body weight and food intake --- p.55 / Chapter 4.3 --- Relative organ weight --- p.55 / Chapter 4.4 --- "Plasma total cholesterol, triglycerides and HDL- cholesterol" --- p.60 / Chapter 4.5 --- Organ cholesterol --- p.60 / Chapter 4.6 --- Fecal neutral sterol output --- p.64 / Chapter 4.7 --- Fecal acidic sterol output --- p.64 / Chapter 4.8 --- Effect of fried lard on cholesterol balance in hamster --- p.64 / Chapter 4.9 --- "Effect of fried lard on hepatic triglycerides, free fatty acids and phospholipids concentration in hamster" --- p.68 / Chapter 4.10 --- Correlation between serum HDL cholesterol and liver cholesterol --- p.76 / Chapter 4.11 --- Correlation between serum HDL cholesterol and kidney cholesterol --- p.76 / Chapter 4.12 --- Correlation between serum TG and liver TG --- p.76 / Chapter CHAPTER 5 --- RESULTS OF FRIED CORN OIL EXPERIMENT / Chapter 5.1 --- Fatty acid composition and phytosterol content of experiment corn oil --- p.80 / Chapter 5.2 --- Body weight and food intake --- p.80 / Chapter 5.3 --- Relative organ weight --- p.84 / Chapter 5.4 --- Plasma total cholesterol,triglycerides and HDL- cholesterol --- p.84 / Chapter 5.5 --- Organ cholesterol --- p.87 / Chapter 5.6 --- Fecal neutral sterol and phytosterol output --- p.87 / Chapter 5.7 --- Fecal acidic sterol output --- p.92 / Chapter 5.8 --- Effect of fried corn oil on cholesterol balance and phytosterol balance in hamsters --- p.92 / Chapter 5.9 --- "Effect of fried corn oil on hepatic triglycerides, free fatty acids and phospholipids concentration in hamster" --- p.97 / Chapter 5.10 --- Correlation between serum HDL cholesterol and liver cholesterol --- p.105 / Chapter 5.11 --- Correlation between serum HDL cholesterol and kidney cholesterol --- p.105 / Chapter 5.12 --- Correlation between serum TG and liver TG --- p.105 / Chapter CHAPTER 6 --- DISCUSSION --- p.109 / Chapter CHAPTER 7 --- CONCLUSION --- p.117 / REFERENCE --- p.118
7

Characterization and Combustion Performance of Corn Oil-Based Biofuel Blends

Savant, Gautam Sandesh 2012 May 1900 (has links)
In recent years, the development and use of biofuels have received considerable attention due to the high demand for environmentally acceptable (green) fuels. Most of the recent studies have looked at the processes of converting vegetable oils into biodiesel. It is well known vegetable oil to biodiesel conversion involves many processes including transesterification, which makes biodiesel costly and time-consuming to produce. In this study, the effects of blending high-viscosity fresh and used corn oils with low-viscosity diesel and jet fuel mixed with butanol and ethanol were studied. Several corn oil-based blends were formulated and characterized to understand the effect of composition on viscosity, fuel stability and energy content. The formulated corn oil blends were combusted in a 30 kW modified combustion chamber to determine the corresponding NOx and CO emission levels, along with CO₂ levels. Used corn oil was made by simply heating fresh corn oil for a fixed period of time (about 44 hours), and was characterized by quantifying its total polar material (TPM), iodine value, free fatty acid content, and peroxide value. The combustion experiments were conducted at a constant heat output of 68,620 kJ/hr (19 kW), to observe and study the effects of equivalence ratio, swirl number, and fuel composition on emissions. Used corn oil blends exhibited better combustion performance than fresh corn oil blends, due in part to the higher unsaturation levels in fresh corn oil. NOx emissions for used corn oil increased with swirl number. Among all the blends, the one with the higher amount of diesel (lower amount of corn oil) showed higher NOx emissions. The blend with fresh corn oil showed decreasing NOx with increasing equivalence ratio at swirl number 1.4. All blends showed generally decreasing CO trends at both swirl numbers at very lean conditions. The diesel fuel component as well as the alcohols in the blends were also important in the production of pollutants. Compared to the diesel-based blends mixed with used corn oil, butanol, and ethanol, the jet fuel-based blends showed higher NOx levels and lower CO levels at both swirl numbers.
8

Identification of quantitative trait loci (QTLs) of corn oil in Zea mays L.

Schneerman, Martha June Cook. Weber, David F. January 1996 (has links)
Thesis (Ph. D.)--Illinois State University, 1996. / Title from title page screen, viewed May 31, 2006. Dissertation Committee: David F. Weber (chair), Alan J. Katz, Marjorie A. Jones, Radheshyam K. Jayaswal, Jefferey A. Dole. Includes bibliographical references (leaves 96-108) and abstract. Also available in print.
9

Production of biodiesel from corn oil and ethanol by homogeneous alkali catalyzed transesterification / Tillverkning av biodiesel frånj majsolja och etanol genom homogen baskatalyserad transesterifiering

Mendez, Atahualpa January 2011 (has links)
This report gives a general overview on biodiesel production, its motivations, characteristics and recent developments, mainly focused in the Brazilian case. The Brazilian National Program for Production and Use of Biodiesel (PNPB) launched 2003 created a demand of biodiesel and stimulated the biodiesel production. Biodiesel is being produced from soybean oil, followed by animal fats and cottonseed oil, with palm and castor bean oil contributing in small portions. The biodiesel expansion has impacts on environmental and social issues such as deforestation from soya expansion and a decrease of employment levels due to the high degree of mechanization of the soya harvest. Experimental work was developed, using corn oil, ethanol and NaOH as a catalyst. Experiments were made varying significant parameters to find the optimum reaction temperature, reaction time, catalyst amount and molar ratio between ethanol and corn oil. Besides that, another experiment aimed to describe the yield behavior as a function of the reaction time. The produced biodiesel has been characterized by measurements of density, refraction index and viscosity. The amount of 0.4 wt % NaOH, based on the weight of raw oil, was enough to catalyze the reaction of transesterification effectively. A higher amount of alcohol in excess provides a higher yield at mild temperature conditions. But the higher amount of alcohol used, the higher the amount of alcohol in excess presented in the biodiesel phase which has to be eliminated. An increase of the temperature from 40˚C to 50˚C  does not increase the yield in a considerable way. Thus due to the energy saving it is not recommended to increase the temperature to 50˚C. Regarding the evaluation of the conversion as function of time, a high conversion is obtained after 90 min. An extension of the reaction time from 90 to 150min had no significant effect.
10

Effects of butter and corn oil on urinary taurine and fecal bile acid excretion in healthy young women /

Kindrick, Shirley Gilliland January 1980 (has links)
No description available.

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