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Bioresource and Agricultural Engineering

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Physical Properties

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Full-Text Articles in Life Sciences

Single-Screw Extrusion Modeling Effects On Extrusion Processing Parameters And Physical Properties Of Ddgs-Based Nile Tilapia ( Oreochromis Niloticus ) Feeds, Ferouz Y. Ayadi, Parisa Fallahi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Aug 2011

Single-Screw Extrusion Modeling Effects On Extrusion Processing Parameters And Physical Properties Of Ddgs-Based Nile Tilapia ( Oreochromis Niloticus ) Feeds, Ferouz Y. Ayadi, Parisa Fallahi, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

A single-screw laboratory extruder was used to conduct an L 18 (2 2 X 3 6 ) Taguchi fractional factorial study of aquafeed processing. The ingredients were based on a formulation for nutritionally-balanced Nile tilapia diets containing distillers dried grains with solubles (DDGS) and soybean meal as the main protein sources, in addition to constant amounts of corn flour, whey, and fish meal. The effects of three levels of DDGS (20, 30 and 40%), soybean meal (30, 40 and 50%), ingredient moisture content (20, 30 and 40% db), screw speed (100, 150 and 200 rpm), barrel temperatures (80-100-100°C, 80-120-120°C ...


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 ...


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 ...


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 ...


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 ...


Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Kurt A. Rosentrater Jul 2006

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

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. is dramatically increasing, and consequently so is the amount of coproduct materials generated from this processing sector. These streams are primarily utilized as livestock feed, which is a route that provides ethanol processors with a substantial revenue source and significantly increases the profitability of the production process. With the construction and operation of many new plants in recent years, these residuals do, however, have much potential for value-added processing and utilization in other sectors as well. Extensive research has been conducted into determining the nutritional properties of distillers dried grains with ...


Update On Ethanol Processing Residue Properties, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, James Julson, Padmanaban Krishnan Jul 2005

Update On Ethanol Processing Residue Properties, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan, James Julson, Padmanaban Krishnan

Kurt A. Rosentrater

The production of corn-based ethanol in the U.S. is dramatically increasing, and consequently so is the amount of byproduct materials generated from this processing sector. These coproduct streams are currently solely utilized as livestock feed, which is a route that provides ethanol processors with a substantial revenue source and significantly increases the profitability of the production process. With the construction and operation of many new plants in recent years, these residuals do, however, have much potential for value-added processing and utilization in other sectors as well. This option holds promise of economic benefit for corn processors, especially if the ...


Properties Of Corn Masa Processing Byproducts, Kurt A. Rosentrater Jul 2003

Properties Of Corn Masa Processing Byproducts, Kurt A. Rosentrater

Kurt A. Rosentrater

The production of corn masa-based products in the U.S. has been increasing over the last several years, and as a result, so has the quantity of waste materials generated from this industry. These byproduct materials may have potential for value-added processing and utilization, which are options that hold the promise of economic benefits for masa processors and decreased potential pollution for the environment. Fundamental to any byproduct development, however, is a full characterization of the processing residue, because physical and nutritional properties are necessary for the proper design of processing operations and applications. Vital physical properties include moisture content ...