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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 Jul 2012

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 ...


Effects Of Conditioner Steam, Extruder Water And Screw Speed On Physical Properties Of Ddgs-Based Extrudates In Twin-Screw Extrusion, Parisa Fallahi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Mehmet Tulbek Aug 2011

Effects Of Conditioner Steam, Extruder Water And Screw Speed On Physical Properties Of Ddgs-Based Extrudates In Twin-Screw Extrusion, Parisa Fallahi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Mehmet Tulbek

Kurt A. Rosentrater

A fractional factorial design with a replicated central composite point was used to investigate the effects of extrusion processing on physical properties of DDGS–based aquafeeds using a twin screw extruder. Extrusion cooking trials were performed using an ingredient blend for Nile tilapia, with 2 levels of screw speed (350 and 450 rpm), 2 levels of extruder water (0.236 and 0.302 kg/min) and 2 levels of conditioner steam (0.1 and 0.15 kg/min). The central point was 400 rpm screw speed, 0.271 kg/min extruder water, and 0.12 kg/min conditioner steam. Effects ...


Artificial Neural Network Modeling Of Ddgs Flowability With Varying Process And Storage Parameters, Rumela Bhadra, K. Muthukumarappan, Kurt A. Rosentrater Aug 2011

Artificial Neural Network Modeling Of Ddgs Flowability With Varying Process And Storage Parameters, Rumela Bhadra, K. Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Neural Network (NN) modeling techniques were used to predict flowability behavior of distillers dried grains with solubles (DDGS) prepared with varying condensed distillers soluble (10, 15, and 20%, wb), drying temperature (100, 200, and 300°C), cooling temperature (-12, 0, and 35°C) and cooling time (0 and 1 month) levels. Response variables were selected based on our previous research results, and included aerated bulk density, Hausner Ratio, angle of repose, Total Flowability Index, and Jenike Flow Function. Various neural network models were developed using multiple input variables in order to predict single response variables or multiple response variables simultaneously ...


Using Alternative Flours As Partial Replacement In Barbari Bread (Traditional Iranian Bread) Formulation, Shirin Pourafshar, Padmanaban G. Krishnan, Kurt A. Rosentrater Aug 2011

Using Alternative Flours As Partial Replacement In Barbari Bread (Traditional Iranian Bread) Formulation, Shirin Pourafshar, Padmanaban G. Krishnan, Kurt A. Rosentrater

Kurt A. Rosentrater

Since cereals and cereal-based products are a cheap source of energy, they are highly consumed in all of countries. Wheat is the major cereal, consumed in different food products, especially bread. Today, whole wheat flour is being consumed in most of the breads because of its nutrient components but still different problems are associated with this flour, such as allergies and loss of nutrient components due to milling and refining. Thus, to find different sources to fortify products made with wheat flour as their major ingredient, especially bread is important. In this study, five different flours (20% of each flour ...


Effect Of Starch Sources And Protein Content On Extruded Aquaculture Feed Containing Ddgs, Sankaranandh Kannadhason, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Feb 2011

Effect Of Starch Sources And Protein Content On Extruded Aquaculture Feed Containing Ddgs, Sankaranandh Kannadhason, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

A 3 × 3 × 3 completely randomized design was used to investigate extrusion cooking behavior and product characteristics of distillers dried grains with solubles (DDGS), protein levels, and various starch sources in a laboratory scale single screw extruder. Cassava, corn, and potato starches with varying levels of DDGS (20%, 30%, and 40% wet basis (wb)) were extruded with three different proportions of protein levels (28%, 30%, and 32% wb). The extrusion cooking was performed at a constant feed moisture content of 20% wb, barrel temperature of 120 °C, and a preset screw speed of 130 rpm (13.6 rad/s). Extrudate ...


Twin-Screw Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Rainbow Trout (Oncorhynchus Mykiss) Feeds, Ferouz Y. Ayadi, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, Michael L. Brown Jun 2010

Twin-Screw Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Rainbow Trout (Oncorhynchus Mykiss) Feeds, Ferouz Y. Ayadi, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, Michael L. Brown

Kurt A. Rosentrater

The world’s increasing demand for seafood products has resulted in rising demands for fish meal for fish feed, which must be compensated for by searching for effective alternative protein sources. In this study, twin-screw extrusion trials were conducted to study the production of nutritionally-balanced feeds for rainbow trout fingerlings (Oncorhynchus mykiss). Six isocaloric (~ 4.61 kcal/g) ingredient blends with a similar protein content of 52.8% db were formulated with 0, 10, 20, 30, 40 and 50% distillers dried grains with solubles (DDGS) and other ingredients (i.e. fish meal, fish oil, whole wheat flour, corn gluten meal ...


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 Jun 2010

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

Due to tremendous increases in global aquaculture production, compounded with limited availabilities of fish meal for fish feed, the need for alternative protein sources cannot be disregarded. Toward that end, 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 similar 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 ...


Effects Of Varying Cds Levels And Drying And Cooling Temperatures On Flowability Properties Of Ddgs, Rumela Bhadra, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Jun 2010

Effects Of Varying Cds Levels And Drying And Cooling Temperatures On Flowability Properties Of Ddgs, Rumela Bhadra, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Demand for alternative fuels and the need to reduce dependence on fossil fuels, have triggered the growth of corn-based ethanol production, and this is expected to rise in future years. Transportation of the co-product distillers dried grains with solubles (DDGS) from this industry occurs under various environmental conditions. It is often problematic, since caking between the particles can lead to flow problems. In this study we have prepared DDGS by combining condensed distillers solubles (CDS) with distillers wet grains (DWG) and then drying. We investigated the effects of CDS (10, 15, and 20% wb), drying temperature (100, 200, and 300 ...


Evaluation Of Measurement Procedures Used To Determine The Bulk Density Of Distillers Dried Grains With Solubles (Ddgs), Clairmont L. Clementson, Klein E. Ileleji, Kurt A. Rosentrater Jan 2010

Evaluation Of Measurement Procedures Used To Determine The Bulk Density Of Distillers Dried Grains With Solubles (Ddgs), Clairmont L. Clementson, Klein E. Ileleji, Kurt A. Rosentrater

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. has been dramatically increasing in recent years, and consequently so has the quantity of co-products, especially distillers dried grains with solubles (DDGS), generated from this industrial sector. DDGS is sold as a commodity for animal feed, and like corn, its bulk physical and chemical properties are quality attributes that can be used in trading by merchandisers. Consistency in product quality has been a cause for concern in the industry, and the lack of standard methods for physical and chemical property determination potentially confounds the issue, especially when results of attributes measured ...


Modeling The Effects Of Pelleting On The Logistics Of Distillers Grains Shipping, Kurt A. Rosentrater, Elif Kongar Dec 2009

Modeling The Effects Of Pelleting On The Logistics Of Distillers Grains Shipping, Kurt A. Rosentrater, Elif Kongar

Kurt A. Rosentrater

The energy security needs of energy importing nations continue to escalate. It is clear that biofuels can help meet some of the increasing need for energy. Theoretically, these can be produced from a variety of biological materials, including agricultural residues (such as corn stover and wheat straw), perennial grasses, legumes, algae, and other biological materials. Currently, however, the most heavily utilized material is corn starch. Industrial fuel ethanol production in the US primarily uses corn, because it is readily converted into fuel at a relatively low cost compared to other biomass sources. The production of corn-based ethanol in the US ...


Costs Of Pelleting To Enhance The Logistics Of Distillers Grains Shipping, Kurt A. Rosentrater, Elif Kongar Oct 2009

Costs Of Pelleting To Enhance The Logistics Of Distillers Grains Shipping, Kurt A. Rosentrater, Elif Kongar

Kurt A. Rosentrater

Biofuels, especially corn-based ethanol, can help meet some of the increasing demand for transportation fuels. Currently, the most heavily utilized substrate is corn grain, which is readily converted into ethanol at a relatively low cost compared to other biomass sources. The production of ethanol in the U.S. has been dramatically increasing during the last several years; so too has the quantity of manufacturing coproducts. These nonfermentable residues are most often dried and sold as distillers dried grains with solubles – DDGS. Even though these materials are used to feed livestock in local markets, as the size of the industry continues ...


The Effects Of Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Yellow Perch (Perca Flavescens) Feeds, Ferouz Y. Ayadi, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, Michael L. Brown Sep 2009

The Effects Of Extrusion Processing Of Distillers Dried Grains With Solubles (Ddgs)-Based Yellow Perch (Perca Flavescens) Feeds, Ferouz Y. Ayadi, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, Michael L. Brown

Kurt A. Rosentrater

This study was conducted to investigate the production of balanced diets for juvenile yellow perch (Perca flavescens) feeds. Six isocaloric (~ 3.21 kcal/g), isonitrogenous (31.5% db) ingredient blends were formulated with 0, 10, 20, 30, 40, and 50% distillers dried grains with solubles (DDGS) at a feed moisture content of 60-65% db, with appropriate amounts of soybean meal, fish meal, vitamin and mineral mix. Extrusion cooking was performed using a laboratory-scale single screw extruder at a constant barrel temperature profile of 40ºC-90ºC-100ºC, and a constant screw speed of 230 rpm (24.1 rad/s). During processing the mass ...


Extrusion Studies Of Aquaculture Feed Using Distillers Dried Grains With Solubles And Whey, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Jun 2009

Extrusion Studies Of Aquaculture Feed Using Distillers Dried Grains With Solubles And Whey, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Three isocaloric (3.5 kcal/g) ingredient blends containing 20, 30, and 40% distiller-dried grains with solubles (DDGS) along with 5% whey were prepared with a net protein content adjusted to 28% (wet basis [wb]). Other ingredients in the blends included soy flour, corn flour, fish meal, vitamin, and mineral mix. These blends were extruded in a single-screw extruder at 15, 20, and 25% (wb) moisture content and at 130 and 160 rpm screw speeds. Compared to previous research, the durability and unit density of the extrudates in this study were found to increase substantially by the addition of whey ...


Effect Of Elusieve Fractionation On Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Kurt A. Rosentrater, Radhakrishnan Srinivasan Jun 2009

Effect Of Elusieve Fractionation On Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Kurt A. Rosentrater, Radhakrishnan Srinivasan

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. has been dramatically increasing in recent years, and consequently so has the quantity of coproduct materials generated from this processing sector. These streams are primarily utilized as livestock feed, and can partially offset the need for corn in feed rations. As the industry evolves, new technologies are being developed to improve the value proposition of the coproducts, especially distillers dried grains with solubles (DDGS). One of these is the Elusieve process, which combines sieving and air classification to accomplish fractionation of the DDGS into component-rich (i.e., protein, lipid, fiber) streams ...


Physical And Flow Properties Of Regular And Reduced Fat Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Jun 2009

Physical And Flow Properties Of Regular And Reduced Fat Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of corn-based distillers dried grains with solubles (DDGS) are now being produced. Flowability of DDGS has become a problem throughout the industry, as it is often restricted by caking and bridging during storage and transport. The objective of this study was to quantify physical and flow properties of commercially produced unmodified (9.3% db fat) and reduced fat (2.1% db) DDGS to determine if fat level affects flowability. The compressive modulus of reduced fat DDGS was 28.2% higher than unmodified DDGS, but ...


Examining The Effects Of Ethanol Processing And Drying Conditions On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Kurt A. Rosentrater, Brian A. Wrenn May 2009

Examining The Effects Of Ethanol Processing And Drying Conditions On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Kurt A. Rosentrater, Brian A. Wrenn

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. has been dramatically increasing in recent years, and consequently so has the quantity of coproduct materials generated from this processing sector. These streams are primarily utilized as livestock feed, which partially offsets the need for corn in feed rations. Because of its use as an animal feed, considerable research has been conducted into the nutritional properties, and to some extent the physical properties, of commerciallyavailable distillers dried grains with solubles (DDGS). There are, however, occasions when the quality of coproducts is not consistent. Thus questions regarding the influence of production operations ...


Properties Of Solvent Extracted Low-Oil Corn Distillers Dried Grains With Solubles, Kurt A. Rosentrater, Jennifer A. Saunders Jan 2009

Properties Of Solvent Extracted Low-Oil Corn Distillers Dried Grains With Solubles, Kurt A. Rosentrater, Jennifer A. Saunders

Kurt A. Rosentrater

Corn-based ethanol is exponentially growing in the US, as is the need for valuable uses for coproducts of the production process, such as distillers dried grains with solubles (DDGS). Currently, DDGS is used as livestock feed, thereby replacing some corn components in animal diets. As the industry continues to grow, there will be an increased need to find additional uses for DDGS. Physical and chemical properties of coproduct streams are becoming increasingly investigated, as these characteristics affect many aspects of utilization, such as target species, optimal dietary substitution rates, transportation, flowability, and behavior during storage. Potential avenues for future use ...


Performance Characteristics Of Nile Tilapia (Oreochromis Niloticus) Fed Diets Containing Graded Levels Of Fuel-Based Distillers Dried Grains With Solubles, Travis W. Schaeffer, Michael L. Brown, Kurt A. Rosentrater Jan 2009

Performance Characteristics Of Nile Tilapia (Oreochromis Niloticus) Fed Diets Containing Graded Levels Of Fuel-Based Distillers Dried Grains With Solubles, Travis W. Schaeffer, Michael L. Brown, Kurt A. Rosentrater

Kurt A. Rosentrater

A feeding trial was performed to investigate levels of corn-based Distillers Dried Grains with solubles (DDGS), a co-product of fuel ethanol manufacturing, used as a nutrient source for juvenile Nile tilapia (Oreochromis niloticus). Three isocaloric (15.7±0.7 MJ kg-1 dry matter), isonitrogenous (29.6±1.0% crude protein) experimental diets were formulated to contain 20, 30 and 40% DDGS; a commercial diet containing fishmeal was used as a reference diet. Glass aquaria (110 L) were stocked with Nile tilapia (mean weight = 6.7 g) with four replicates per diet. Weight gains, conversion ratios and hepatosomatic indices did not ...


On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Klein Ileleji, Kurt A. Rosentrater Jul 2008

On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Klein Ileleji, Kurt A. Rosentrater

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS) is a complex heterogeneous granular solid that exhibit a wide range of physical and chemical properties. This fact is one of the major reasons that livestock nutritionists often find it difficult to include it in their feed rations. The rapid growth of the corn ethanol industry, the primary generator of DDGS, has resulted in a huge influx of this product into the marketplace. Unfortunately, the lack of standard methods for product quality determination and reporting is becoming a bottleneck to expanding the market for this product. Challenges in the logistics of moving DDGS through ...


Understanding And Modeling Flowability Of Ddgs, Rumela Bhadra, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Jun 2008

Understanding And Modeling Flowability Of Ddgs, Rumela Bhadra, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS), the major coproduct from the corn-based fuel ethanol industry, is primarily used as livestock feed. Due to high protein, fiber, and energy contents, there is a high demand for DDGS. Flowability of DDGS is often hindered due the phenomenon of “caking”. Shipping and handling of DDGS has thus become a major issue due to bridge formation between the DDGS particles. The objective of this investigation was to measure flowability characteristics of DDGS samples from five ethanol plants in the north central region of the U.S. Carr and Jenike tests were performed, and the ...


Surface Characteristics And Flowability Of Distillers Dried Grains With Solubles, Rumela Bhadra, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Jun 2008

Surface Characteristics And Flowability Of Distillers Dried Grains With Solubles, Rumela Bhadra, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

With an annual production of approximately 6.5 billion gallons of fuel ethanol, and projected growth for the foreseeable future, supplies of coproducts such distillers dried grain with solubles (DDGS) are anticipated to continue to grow as well. DDGS is used primarily as livestock feed. Much of the DDGS must be shipped, often over large distances throughout the country, as much of the livestock (especially large dairies and feedlots) are outside the Corn Belt, where most of the ethanol plants are currently located. “Caking”, or stickiness, among particles is an important issue related to DDGS, especially when it leads to ...


Effect Of Flow Agent Addition On The Physical Properties Of Ddgs With Varying Moisture Content And Soluble Levels, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Vykundeshwari Ganesan Jan 2008

Effect Of Flow Agent Addition On The Physical Properties Of Ddgs With Varying Moisture Content And Soluble Levels, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, Vykundeshwari Ganesan

Kurt A. Rosentrater

Distillers Dried Grains with Solubles (DDGS) is widely recognized as a highly nutritious animal feed ingredient. With the exponential growth of the fuel ethanol industry in the past several years, significant quantities of distillers grains are now being produced. To effectively utilize these feeds in the domestic market, these coproduct streams have to be transported greater distances, and must be stored in various structures until final use. Unfortunately, DDGS flow is often problematic, as it frequently becomes restricted by caking and bridging during storage and transport. This issue may arise from a number of factors, including storage moisture, temperature, relative ...


Potential Bleaching Techniques For Corn Distillers Grains, Jessica A. Saunders, Kurt A. Rosentrater, P. G. Krishnan Jan 2008

Potential Bleaching Techniques For Corn Distillers Grains, Jessica A. Saunders, Kurt A. Rosentrater, P. G. Krishnan

Kurt A. Rosentrater

The ethanol industry is booming and extensive research is now being pursued to develop alternative uses for Distillers Dried Grains (DDG) and Distillers Dried Grains with Solubles (DDGS), coproducts of the ethanol production process. Currently, DDG and DDGS are used exclusively as livestock feed. The low starch, high protein and high fiber coproducts appear to be ideally suited for diets treating medical conditions such as diabetes and Celiac’s disease by virtue of their chemical composition. Processing methods need to be investigated to create flours that can be used effectively. Modifying aspects such as color, odor and baking functionality may ...


Characterization Of Ddgs Using Differential Scanning Calorimetry, Vyku Ganesan, Kurt A. Rosentrater Oct 2007

Characterization Of Ddgs Using Differential Scanning Calorimetry, Vyku Ganesan, Kurt A. Rosentrater

Kurt A. Rosentrater

DDGS is one of the main coproducts obtained from corn dry grind ethanol processing. Cake formation/agglomeration in DDGS has been recognized as a major problem in its flowability and long term storage. In our previous studies, the physical and flow properties of DDGS were investigated using the Carr powder tester and Jenike shear testing. In addition to those, the surface characteristics of DDGS are very important, as these properties will impact the resulting flow behavior of DDGS during storage, handling, and transportation. These types of properties, however, have not been determined for DDGS. As a first step toward that ...


Examining The Properties Of Deoiled Vs. Unmodified Ddgs, Vyku Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Oct 2007

Examining The Properties Of Deoiled Vs. Unmodified Ddgs, Vyku Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS) are an excellent feed ingredient for ruminant livestock and are used in monogastric rations as well. With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of distillers grains are now being produced. Flowability of DDGS has become a problem throughout the industry, as it is often restricted by caking and bridging during storage and transportation. As DDGS contains modest levels of corn oil (typically between 3 and 13% db), some studies are being directed at removing the fat from DDGS, to improve the marketability of DDGS by ...


Towards An Understanding Of Ddgs Flowabilitycharacteristics, Rumela Bhadra, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Oct 2007

Towards An Understanding Of Ddgs Flowabilitycharacteristics, Rumela Bhadra, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS), a major coproduct from the corn-based fuel ethanol industry, is primarily used as livestock feed. Due to high protein, fiber, and energy contents, there is a high demand for DDGS. Flowability of DDGS is often hindered due the phenomenon of “caking”. Shipping and handling of DDGS has thus become a major issue due to bridge formation between the DDGS particles. The objective of this investigation was to measure flowability of DDGS samples from five ethanol plants in the north central region of the U.S. Carr and Jenike tests were performed, and the resulting ...


Modeling The Flow Properties Of Distillers Dried Grains With Solubles, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Jun 2007

Modeling The Flow Properties Of Distillers Dried Grains With Solubles, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS) are an excellent source of energy, minerals, and bypass protein for ruminants, and are also used in monogastric rations as well. With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of distillers grains are now being produced. DDGS flow is often restricted by caking and bridging during its storage and transportation. In our previous works, it has been found that increased soluble and moisture levels significantly affected the flow properties of DDGS. Currently, however there is no model available to predict the flowability of DDGS. So, the ...


Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Jun 2007

Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS) are an excellent source of energy, minerals, and bypass protein for ruminants and are used in monogastric rations as well. With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of distillers grains are now being produced. Flow of DDGS is often restricted by caking and bridging during its storage and transportation. In our previous works, the Carr powder tester was used to measure various flow properties of DDGS. The objective of this study was to measure the flow properties (cohesion, effective angle of friction, internal angle of ...


Physical Properties Of Low Oil Distillers Dried Grains With Solubles (Ddgs), Jessica A. Herr Saunders, Kurt A. Rosentrater Jun 2007

Physical Properties Of Low Oil Distillers Dried Grains With Solubles (Ddgs), Jessica A. Herr Saunders, Kurt A. Rosentrater

Kurt A. Rosentrater

Corn-based ethanol production is exponentially growing in the U.S. As the use of ethanol as a fuel source increases, so does the need to find valuable uses for coproducts of the production process, such as distillers dried grains with solubles (DDGS). DDGS is a good source of nutrients, energy, and protein. Currently DDGS is sold by ethanol processors as livestock feed, thereby increasing profit for the production plants. As the industry continues to grow, there will be a growing need to find additional uses for DDGS. Physical and chemical properties of coproduct streams are becoming increasingly investigated, as these ...


Characterization Of Chemical And Physical Properties Of Distillers Dried Grain With Solubles (Ddgs) For Value Added Uses, Rumela Bhadra, K. Muthukumarappan, Kurt A. Rosentrater Jun 2007

Characterization Of Chemical And Physical Properties Of Distillers Dried Grain With Solubles (Ddgs) For Value Added Uses, Rumela Bhadra, K. Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

One of the fastest growing industries in the United States is the fuel ethanol industry. Since 2000 there has been an increase of more than 300%. There was production of 4.9 billion gallons of ethanol in 2006. The major coproducts from this industry include Distillers Dried Grains with Solubles (DDGS) and carbon dioxide. DDGS is used as a livestock feed since it contains high quantities of protein, fiber, amino acids, and other nutrients. The goal of this study was to quantify various chemical and physical properties of DDGS, Distillers Wet Grains (DWG), and Distillers Dried Grain (DDG) from several ...