Changes in Moisture, Protein, and Fat Content of Fish and Rice Flour Coextrudates during Single-Screw Extrusion Cooking

Tumuluru, Jaya Shankar; Sokhansanj, Shahab; Bandyopadhyay, Sambaran; Bawa, A. S.

doi:10.1007/s11947-011-0764-7

Cited by 40 publications

(24 citation statements)

References 44 publications

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“…Tumuluru et al. studies on extrusion of high‐protein foods indicated that higher levels of proteins in the food mix can reduce the expansion and increase the hardness values of food pellets. The same authors indicated that the presence of higher amounts of starch in the biomass can increase the expansion ratio thereby reducing the density of the extrudates.…”

Section: Discussionmentioning

confidence: 99%

High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

Tumuluru

2015

Energy Science & Engineering

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The quality and specific energy consumption (SEC) of the biomass pellets produced depend upon pelleting process conditions. The present study includes understanding the effect of feedstock moisture in the range of 28-38% (wet basis [w.b.]) and preheating in the range of 30-110°C at two die speeds of 40 and 60 Hz on the physical properties and SEC. A flat die pellet mill fitted with a 6 mm die was used in the present study. The physical properties of pellets such as moisture content, unit, bulk and tapped density, durability, and expansion ratio and SEC of the pelleting process are measured. The results indicate that the pellets produced have durability values in the range of 87-98%, and unit bulk and tapped density in the range of 670-1100, 375-575, and 420-620 kg/m 3 . Increasing the feedstock moisture content from 33% to 38% (w.b) decreased the unit, bulk and tapped density by about 30-40%. Increasing feedstock moisture content increased the expansion ratio and decreased the density values. A higher feedstock moisture content of 38% (w.b.) and higher preheating temperature of 110°C resulted in lower density and a higher expansion ratio, which can be attributed to flash off of moisture as the material extrudes out of the die. The SEC was in the range of 75-275 kWh/ton. Higher feedstock moisture content of 38% (w.b.) and a lower die speed of 40 Hz increased the SEC, whereas lower to medium preheating temperature (30-70°C), medium feedstock moisture content of 33% (w.b.), and a higher die speed of 60 Hz minimized the SEC to <100 kWh/ton.

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Section: Discussionmentioning

confidence: 99%

High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

Tumuluru

2015

Energy Science & Engineering

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“…The lower density values observed at high-moisture content of ground biomass can be improved by adding protein-based binders. Tumuluru et al (2013) and Shankar and Bandyopadhyay (2004) in their studies on extrusion of fish and rice flour indicated that when protein is extruded at temperature of 100°C, undergoes denaturation and increases the hardness of the extrudates.…”

Section: 3 Unit Bulk and Tapped Density (Kg/m3)mentioning

confidence: 99%

Specific energy consumption and quality of wood pellets produced using high-moisture lodgepole pine grind in a flat die pellet mill

Tumuluru

2016

Chemical Engineering Research and Design

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In the present study a Box-behnken experimental design was used to understand the effect of the moisture content of lodgepole pine grind (33-39%, w.b.), die speed (40-60 Hz) and preheating temperature (30-90°C) on the pellet quality, and specific energy consumption. The partially dried pellets produced had high-moisture content in the range of 19 to 28% (w.b.), and were further dried to <9% (w.b.) in a mechanical oven set at 70°C for 3 hours. Dried pellets were further evaluated for pellet moisture content, unit, bulk, tapped density, and durability. Response surface models developed for the product properties have adequately described the process based on coefficient of determination values. Surface plots developed indicated higher unit, bulk, and tapped density (1050, 520, 560 kg/m 3) are achievable at 33-35% (w.b.) moisture content of the lodgepole pine grind, die speed of 60 Hz and preheating temperature of 30-60°C. Higher moisture content to 39% (w.b) reduced unit, bulk, and tapped density to <912, 396, and 452 kg/m 3. Higher durability values of >95% were obtained at 33-35% (w.b.) at lower preheating temperatures of 30-50°C and higher die speed of >50 Hz. At 33% (w.b.) moisture content of the lodgepole pine grind, preheating temperature of 90°C, and die speed of 60 Hz, the observed specific energy consumption was <116 kWhr/ton. Scanning electron microscope studies indicated that lignin crosslinking is the primary reason for binding of the lodgepole pine grind at high-moisture content.

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“…GAs have been successfully used for highly complex and nonlinear systems where the objective is to either maximize or minimize function [28,30]. Shankar and Bandyopadhyay [32], Shankar et al [33], and Tumuluru et al [34] successfully used GA to optimize the extrusion process conditions for physical properties, volumetric flow rates, and proximate composition of the extrudates during single screw extrusion. In the present study, the GA software developed by Shankar and Bandyopadhyay [32], and Shankar et al [33] in C and VC++ language was used.…”

Section: Experimental Data Analysismentioning

confidence: 99%

“…Response surface models developed for the briquette quality attributes were used as the objective functions to find the optimum process conditions which can minimize briquette moisture content and maximize density-1, density-2, and DR. In the present problem, a fixed population of 100, fixed number of iterations of 100 (which is the stopping criteria of the algorithm), and crossover and mutation probabilities of 0.98 and 0.02 were used [34].…”

Section: Experimental Data Analysismentioning

confidence: 99%

Impact of process conditions on the density and durability of wheat, oat, canola, and barley straw briquettes

et al. 2014

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The present study is to understand the impact of process conditions on the quality attributes of wheat oat, barley, and canola straw briquettes. Analysis of variance indicated that briquette moisture content and initial density immediately after compaction and final density after 2 weeks of storage are strong functions of feedstock moisture content and compression pressure, whereas durability rating is influenced by die temperature and feedstock moisture content. Briquettes produced at a low feedstock moisture content of 9 % (w.b.) yielded maximum densities >700 kg/m 3 for wheat, oat, canola, and barley straws. Lower feedstock moisture content of <10 % (w.b.) and higher die temperatures >110°C and compression pressure >10 MPa minimized the briquette moisture content and maximized densities and durability rating based on surface plots observations. Optimal process conditions indicated that a low feedstock moisture content of about 9 % (w.b.), high die temperature of 120-130°C, medium-to-large hammer mill screen sizes of about 24 to 31.75 mm, and low to high compression pressures of 7.5 to 12.5 MPa minimized briquette moisture content to <8 % (w.b.) and maximized density to >700 kg/m 3 . Durability rating >90 % is achievable at higher die temperatures of >123°C, lower to medium feedstock moisture contents of 9 to 12 % (w.b.), low to high compression pressures of 7.5 to 12.5 MPa, and large hammer mill screen size of 31.75 mm, except for canola where a lower compression pressure of 7.5 to 8.5 MPa and a smaller hammer mill screen size of 19 mm for oat maximized the durability rating values.

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Changes in Moisture, Protein, and Fat Content of Fish and Rice Flour Coextrudates during Single-Screw Extrusion Cooking

Cited by 40 publications

References 44 publications

High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

High moisture corn stover pelleting in a flat die pellet mill fitted with a 6 mm die: physical properties and specific energy consumption

Specific energy consumption and quality of wood pellets produced using high-moisture lodgepole pine grind in a flat die pellet mill

Impact of process conditions on the density and durability of wheat, oat, canola, and barley straw briquettes

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