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The stability of alpha-tocopherol in whole-wheat flour and forn meal during heatingWisjaja, Kelvin. January 2006 (has links) (PDF)
Thesis PlanA (M.S.)--University of Wisconsin--Stout, 2006. / Includes bibliographical references.
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Use of near-infrared spectroscopy for qualitative and quantitative analyses of grains and cereal productsPanjama Cheewapramong. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed June 17, 2008). PDF text: xiii, 152 p. : ill. (some col.) ; 2 Mb. UMI publication number: AAT 3293917. Includes bibliographical references. Also available in microfilm and microfiche formats.
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Effect of the proposed NAS fortification policy for cereal grain products on the nutritional value of corn meal mushBalogun, Margaret Bose. January 1978 (has links)
Call number: LD2668 .T4 1978 B35 / Master of Science
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Numerical analysis of corn flour melt flow in extruder die and extrusion of corn puffs with wheat starchesXie, Wei, January 1999 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1999. / Typescript. Vita. Includes bibliographical references (leaves 151-159). Also available on the Internet.
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Processing and properties of extruded flaxseed-corn puff /Wu, Wan-Yu. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 203-218). Also available on the Internet.
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Numerical analysis of corn flour melt flow in extruder die and extrusion of corn puffs with wheat starches /Xie, Wei, January 1999 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1999. / Typescript. Vita. Includes bibliographical references (leaves 151-159). Also available on the Internet.
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Protein digestibility of sorghum and maize flours and porridges as affected by gammairradationFombang, Edith Nig. January 2004 (has links)
Thesis (Ph.D.)(Food Science)--University of Pretoria, 2005. / Includes summary. Includes bibliographical references.
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Processing and properties of extruded flaxseed-corn puffWu, Wan-Yu. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 203-218). Also available on the Internet.
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Methods for analyzing wall slip in the die of a capillary rheometerAlyssa Shirley Christoffer (8088704) 06 December 2019 (has links)
Wall slip in the die of
a capillary rheometer was investigated. Corn meal and water were mixed to a
moisture content of 35% wet basis. Oil was then added at 0%, 2.5%, and 5% of
the total mass. A capillary rheometer was used to extrude the mixture at 100C. Three
die diameters were studied: 2mm, 4mm, and 8mm. Two length to diameter ratios
were studied: L/D=4 and L/D=8. Pressure and flow rate in grams per 30 seconds
were collected from the capillary rheometer to perform the Bagley correction,
determine the flow behavior index, and correct for slip using the Mooney slip
analysis method. Several slip analysis methods were considered prior to the
selection of the Mooney method. Overall, the Bagley correction was successful
for all die diameters except 2mm. The Mooney method was successful for the 5%
added oil content samples. An increase slip velocity was observed as shear
stress increased. Mooney plots for 0% and 2.5% resulted in negative shear rate
values. An empirical model was developed to predict apparent viscosity of the
mixture as a function of total oil content.
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Chemical treatment of bread corn during milling process to eliminate insect contaminationKingrea, Charles Leo January 1951 (has links)
The problem of this investigation was to develop a satisfactory method by which insect infested corn could be treated continuously to eliminate the contamination normally found in the corn meal produced from the corn.
An extensive literature review was compiled covering the processing of corn, the description of insects infesting stored corn, the sources of insect contamination, the tests for contamination in the corn meal, and the methods now employed or proposed for the reduction of this contamination.
In connection with the fumigation of stored grain, tables were prepared showing the results of fumigations of grain insects with more than 400 chemical compounds. Those compounds which appeared to be best suited for this type of treatment of the corn, were then listed in a separate table and the properties of the compounds detailed so that a selection of the optimum compounds for experimental testing could be made.
In addition to fumigation procedures, thermal procedures employing infrared radiation and dielectric heating were possible methods for killing the insects in the corn. Another procedure recommended for this purpose was the use of the mechanical force to kill the insect by means of high speed centrifugal machines called "Entoleter" Infestation Destroyers.
By means of fragment analyses of samples of corn meal, it was found that the source of the corn and the care which it received during storage and handling were of primary importance in producing corn meal free from contamination by the present milling procedures. As a result of similar analyses it was found that precracking and aspirating of the corn on certain types of equipment prior to the normal grinding of the meal did not result in a reduction in the quantity of fragments present in the meal.
Carbon tetrachloride and trichloroethylene were selected for possible utilization in very rapid fumigation of the infested corn. Laboratory apparatus based on the operation of the solvent-vapor degreaser for metal parts was constructed. In the resulting tests, it was found that with infested corn suspended in the vapor of boiling carbon tetrachloride or trichloroethylene the mortality of all stages of the rise weevil was 100 per cent after an exposure period of only one minute. Other tests indicated that after air drying of the grain the carbon tetrachloride did not have any deleterious effect on the baking properties of the corn.
In connection with heat sterilization methods, tests were conducted which indicated that the baking properties of corn heated to temperatures below 160 °F were not impaired. Further tests were conducted which indicated that both infrared heating and dielectric heating were 100 per cent effective in killing all stages of rice weevil in infested com after an exposure period of two minutes to infrared radiation or one minute to dielectric heating. In both cases the temperature of the com did not reach 160 °F.
Tests conducted with the "Entoleter” centrifugal machine indicated that the damage to the whole grain com by the action of the machine was excessive and all of the rise weevil were not killed.
After due consideration of the experimental results it was decided that the system of rapid fumigation of the infested corn was the most reasonable solution to the problem of killing the insect infestation in the corn, The equipment necessary for the proposed system can be assembled with a few modifications of solvent-vapor, metal-degreasing equipment and with a suitable solvent recovery system. It is anticipated that the removal of the dead insects, larvae, eggs, and pupae can be accomplished on commercial milling equipment now available if the insects are killed prior to the processing and the reinfestation of the product is not an important factor during the processing. / Master of Science
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