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Fractionation Of Distillers Dried Grains With Solubles (Ddgs) Through A Narrowing Of Particle Size Distribution Followed By Aspiration, Rafael A. Garcia, Kurt A. Rosentrater
Fractionation Of Distillers Dried Grains With Solubles (Ddgs) Through A Narrowing Of Particle Size Distribution Followed By Aspiration, Rafael A. Garcia, Kurt A. Rosentrater
Kurt A. Rosentrater
Distiller's dried grains with solubles (DDGS) may have more value and utility if they can be separated into high protein and high fiber fractions. A variety of such separation processes have been proposed; two of the most promising processes involve three screening and three air classification unit operations. In the present study, an alternative process involving fewer unit operations is demonstrated. DDGS are subjected to a single screening, and the oversize particles are processed in a mill setup so that it narrows the particle size distribution of the oversize fraction. The milled DDGS is then processed in an air classification …
Dryland Soil Nitrogen Cycling Influenced By Tillage, Crop Rotation, And Cultural Practice, Upendra M. Sainju, Andrew W. Lenssen, Thecan Caesar-Tonthat, Jalal D. Jabro, Robert T. Lartey, Robert G. Evans, Brett L. Allen
Dryland Soil Nitrogen Cycling Influenced By Tillage, Crop Rotation, And Cultural Practice, Upendra M. Sainju, Andrew W. Lenssen, Thecan Caesar-Tonthat, Jalal D. Jabro, Robert T. Lartey, Robert G. Evans, Brett L. Allen
Andrew W. Lenssen
Management practices may influence dryland soil N cycling. We evaluated the effects of tillage, crop rotation, and cultural practice on dryland crop biomass (stems and leaves) N, surface residue N, and soil N fractions at the 0–20 cm depth in a Williams loam from 2004 to 2008 in eastern Montana, USA. Treatments were two tillage practices (no-tillage [NT] and conventional tillage [CT]), two crop rotations (continuous spring wheat [Triticum aestivum L.] [CW] and spring wheat-barley [Hordeum vulgaris L.] hay-corn [Zea mays L.]-pea [Pisum sativum L.] [W-B-C-P]), and two cultural practices (regular [conventional seed rates and plant spacing, conventional planting date, …
Twin-Screw Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Yellow Perch (Perca Flavescens) Feeds, Ferouz Y. Ayadi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Michael L. Brown
Twin-Screw Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Yellow Perch (Perca Flavescens) Feeds, Ferouz Y. Ayadi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Michael L. Brown
Kurt A. Rosentrater
Increases in global aquaculture production, compounded with limited availabilities of fish meal for fish feed, has created the need for alternative protein sources. Twin-screw extrusion studies were performed to investigate the production of nutritionally balanced feeds for juvenile yellow perch (Perca flavescens). Five isocaloric (~3.06 kcal/g) ingredient blends, adjusted to a target protein content of 36.7% db, were formulated with 0%, 10%, 20%, 30%, and 40% distillers dried grains with solubles (DDGS) at an initial moisture content of 5–7% db, with appropriate amounts of fish meal, fish oil, whole wheat flour, corn gluten meal, and vitamin and mineral premixes. During …
Nutritional Composition And Use Of Common Carp Muscle In Yellow Perch Diets, Travis W. Schaeffer, Matthew J. Hennen, Michael L. Brown, Kurt A. Rosentrater
Nutritional Composition And Use Of Common Carp Muscle In Yellow Perch Diets, Travis W. Schaeffer, Matthew J. Hennen, Michael L. Brown, Kurt A. Rosentrater
Kurt A. Rosentrater
High market demand for marine fish meals coupled with increasing costs and questionable sustainability of wild stocks have led researchers to investigate a variety of alternative plant and animal protein sources for aquaculture feeds. Our objective was to evaluate the use of common carp Cyprinus carpio, a locally abundant, nonnative fish species, to offset the cost of marine fish meal in fish feed. We completed analyses of common carp whole muscle, formulated diets containing combinations of carp and Gulf menhaden Brevoortia patronus fish meal, and then evaluated test diets in a feeding trial with yellow perch Perca flavescens. Composition (dry …
Overview Of Fuel Ethanol Production And Distillers Grains, Kurt A. Rosentrater
Overview Of Fuel Ethanol Production And Distillers Grains, Kurt A. Rosentrater
Kurt A. Rosentrater
Modern societies face many challenges, including growing populations, increased demands for food, clothing, housing, consumer goods, and the concomitant raw materials required to produce all of these. Additionally, there is a growing need for energy, which is most easily met by use of fossil fuels (e.g., coal, natural gas, and petroleum). In 2008, the overall U.S. demand for energy was 99.3 x 1015 Btu (1.05 x 1014 MJ); 84% of this was supplied by fossil sources (U.S. EIA, 2009). Transportation fuels accounted for 28% of all energy consumed during this time, and nearly 97% of this came from fossil sources. …
Manufacturing Of Fuel Ethanol And Distillers Grains—Current And Evolving Processes, Kurt A. Rosentrater, Klein Ileleji, David B. Johnson
Manufacturing Of Fuel Ethanol And Distillers Grains—Current And Evolving Processes, Kurt A. Rosentrater, Klein Ileleji, David B. Johnson
Kurt A. Rosentrater
Before examining all of the different possible uses of distillers dried grains with solubles (DDGS), a discussion regarding ethanol and DDGS production methods is warranted. This chapter will cover current production processes and some of the new practices that have been developed and are being adopted at plants, including front-end fractionation and back-end fractionation. Additionally, standard coproduct definitions will be discussed, as they govern the marketing and sales of these materials.
Alternative Protein Sources For Aquaculture Feeds, Ferouz Y. Ayadi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Alternative Protein Sources For Aquaculture Feeds, Ferouz Y. Ayadi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Kurt A. Rosentrater
With a global seafood production of about 51.7 million ton in 2006 and an annual growth rate of 6.9% from 1970-2006, aquaculture is one of the fastest growing sectors in the food industry. Feed represents 40-70% of operating costs for aquaculture operations. Fish diets typically contain between 20 and 55% crude protein, depending on the fish species. High quantities of fish meal are commonly used in these feeds to supply fish with essential proteins, amino acids and fatty acids. However, during the last 3 years prices for fish meal have remained above $1000 ton-1 and have even approached $2000 ton-1 …
Surface Roughness And Diametral Consistency Of Holes Drilled Into Ddgs/Phenolic Resin Blends, J. W. Shanafield, A. W. Otieno, R. A. Tatara, D. J. Schroeder, Kurt A. Rosentrater
Surface Roughness And Diametral Consistency Of Holes Drilled Into Ddgs/Phenolic Resin Blends, J. W. Shanafield, A. W. Otieno, R. A. Tatara, D. J. Schroeder, Kurt A. Rosentrater
Kurt A. Rosentrater
In this study, corn-based distillers dried grains with solubles (DDGS) has been utilized as a filler and blended with phenolic resin. The blends were compression molded into rectangular test specimens, into which holes have been machined using a standard 9.52 mm (3/8 in) diameter, two-fluted twist drill. A series of tests was then conducted to examine the effects of DDGS content, cutting speed, and feed rate upon the surface finish (roughness) of the interior hole slot, as well as the consistency of the drilled hole diameter. DDGS content was 0, 25, 50, and 75%, by weight. Cutting speed was 17, …
Toward A Scientific Understanding Of Ddgs, Keshun Liu, Kurt A. Rosentrater
Toward A Scientific Understanding Of Ddgs, Keshun Liu, Kurt A. Rosentrater
Kurt A. Rosentrater
Recently, many people have asked what the fuel ethanol industry is going to do about the growing piles of nonfermented leftovers. Actually this question has been around for quite some time. As early as the 1940s, one report stated that "Grain distillers have developed equipment and an attractive market for their recovered grains" (Boruff, 1947), while another report described that "Distillers are recovering, drying, and marketing their destarched grain stillage as distillers dried grains and dried solubles" (Boruff, 1952). So it appears that a viable solution had already been developed as far back as the 1940s. And by the early …