Shahram Emami - Academia.edu (original) (raw)

Papers by Shahram Emami

... It is a cheap source of vegetable protein and constitutes a marked proportion of protein sour... more ... It is a cheap source of vegetable protein and constitutes a marked proportion of protein source of many under-developed and developed ... of this study was to investigate to what extent the sieving classifier has been effective in separating flour particles of desi chana into different ...

Journal of Food Process Engineering, Jul 1, 2009

Chickpea flour was suspended in isopropyl alcohol or deionized water at three concentrations and ... more Chickpea flour was suspended in isopropyl alcohol or deionized water at three concentrations and fractionated to the underflow (starch fraction) and the overflow (protein fraction) using a hydrocyclone. The separation using deionized water resulted in higher starch content in the underflow and higher protein content in the overflow than using isopropyl alcohol. Deionized water resulted in a greater starch separation efficiency (96.3-97.8%) and slightly lower protein separation efficiency (70.4-73.3%) than did isopropyl alcohol. The geometric mean diameter (GMD) of the overflow and underflow increased with a decrease in inlet pressure. The GMD of the underflow fraction in deionized water (26.27-31.28 mm) was greater than that in isopropyl alcohol (17.09-21.12 mm). In both media, the estimated centrifugal and drag forces increased with a decrease of inlet pressure. The centrifugal force applied to the particles in deionized water (1.32 ¥ 10-6-1.67 ¥ 10-6 N) was greater than that in isopropyl alcohol (0.54 ¥ 10-6-0.76 ¥ 10-6 N). Therefore, deionized water resulted in markedly higher starch separation efficiency. However, in isopropyl alcohol, a higher drag force was applied to the particles, and the protein separation efficiency was slightly greater than in deionized water.

Canadian biosystems engineering, Dec 31, 2013

gras hydrogéné « golden flake » est intéressante et présente peu de pertes d'activité enzymatique.

2006 Portland, Oregon, July 9-12, 2006, 2006

... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yield... more ... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yields a cationic-protein isolate (Owusu-Ansah and ... and Bioresource Engineering, University of Saskatchewan), and Ms. Hong Qi of the Centre of Agri-Industrial Technology (Alberta Agriculture ...

Drying Technology, Dec 1, 2006

Powder Technology, Feb 1, 2008

Chemical composition and selected physical properties of chickpea flour, the starch fraction and ... more Chemical composition and selected physical properties of chickpea flour, the starch fraction and the protein fraction were determined. Coefficient of internal friction, coefficient of external friction (on steel, concrete, Teflon and polypropylene), cohesion and adhesion of samples were measured. Chickpea flour and starch fraction had the highest coefficient of internal friction and cohesion, respectively. The coefficient of external friction of chickpea flour and components on concrete was markedly higher than other surfaces. The starch fraction had the highest compressibility and asymptotic modulus at most of the preset loads. The compressibility and asymptotic modulus increased with porosity. Chickpea flour with the lowest porosity had the lowest asymptotic modulus. All samples underwent particle rearrangement during compression.

International Journal of Agricultural and Biological Engineering, Apr 28, 2014

An investigation was conducted to determine the effect of different levels of AK2, a fuel additiv... more An investigation was conducted to determine the effect of different levels of AK2, a fuel additive that reduces ash fusion for agricultural biomass, on the physico-chemical properties of biomass pellets. Three different biomass straws namely, barley, oat and wheat were ground at two hammer mill screen sizes of 0.8 and 1.6 mm. Each ground biomass sample was mixed with three levels of AK2, 0.05, 0.10 and 0.15% by mass and also a blank (no AK2) was set aside for comparison. Pellets were made using single-pelleting unit at a pre-set load of 4400 N corresponding to a pressure of 138.9 MPa. Physical quality of pellets were determined by measuring pellet density, relaxed density, durability and the specific energy required to make a pellet. Pellets having higher durability values (74-88%) were obtained from ground straw at hammer screen size of 0.8 mm and AK2 level of 0.15% compared to other treatments. Carbon, hydrogen, nitrogen and sulfur content of blank pellets and those with 0.15% AK2 at hammer screen size of 0.8 mm were determined. Pellets made with 0.15% AK2 at hammer screen size of 0.8 mm, manufactured by pilot-scale pellet mill, were gasified and the tar content was determined. The tar content of pellets with 0.15% AK2 was significantly lower than blank pellets.

Journal of Food Engineering, Oct 1, 2007

Whole chickpea flour and defatted chickpea flour were slurried in the distilled water at the init... more Whole chickpea flour and defatted chickpea flour were slurried in the distilled water at the initial pH and pH of 9.0. The slurry was subjected to double-pass hydrocyclone process to get overflows and underflows. The effect of defatting and increasing pH on starch-protein separation was evaluated. Application of defatted flour resulted in higher total solid in the underflows. In terms of starch separation, the use of defatted flour at a pH of 9.0 resulted in highest starch content in the underflow with separation efficiency of 99.83%. Using defatted flour at an initial pH of 9.0 resulted in 88.31% (d.b.) protein content in the sediment of the overflows with a separation efficiency from 62.50 to 67.40%. The first-pass process of defatted flour at a pH of 9.0 resulted in protein separation efficiency of 83.11. Defatting of the whole chickpea flour and increasing the pH to 9.0 improved starch and protein separation efficiencies. Starch content of the underflow and protein content of the overflow sediment were enriched to 3.2 and 1.8 times of those of the defatted flour, respectively.

Drying Technology, Dec 1, 2006

Thin-layer drying experiments were performed for drying flax fiber under four different drying co... more Thin-layer drying experiments were performed for drying flax fiber under four different drying conditions. In all drying treatments the absolute humidity of drying air was 0.0065 kg of water per kg of dry air, but the drying temperature were 30, 50, 70, and 100°C. The drying process was modeled using the drying data and five semi−theoretical and empirical models cited in

Transactions of the ASABE, 2007

Thermal properties (thermal conductivity, specific heat, and thermal diffusivity) of chickpea flo... more Thermal properties (thermal conductivity, specific heat, and thermal diffusivity) of chickpea flour, isolated starch, and isolated protein at different temperatures and bulk densities were studied. Thermal conductivity was measured using the line heat source method and calculated using the maximum slope method. Specific heat was measured using differential scanning calorimetry (DSC). Thermal diffusivity was calculated using thermal conductivity, specific heat, and bulk density values. Prediction models were obtained to determine the thermal properties of samples as a function of experimental variables. Thermal conductivity of all three samples showed a linear relationship with temperature and bulk density. Specific heat had a linear relationship with the temperature and moisture content of the sample. Thermal diffusivity of samples had a negative linear relationship with bulk density.

Drying Technology, Dec 1, 2006

Journal of Agricultural and Food Chemistry, 2010

This study determined the effect of micronization (high intensity infrared heating) on the concen... more This study determined the effect of micronization (high intensity infrared heating) on the concentrations of rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS) in normal barley (NB), high-amylose barley (HAB), and waxy barley (WB). The gelatinized starch contents and the thermal properties of the micronized samples also were determined. Samples of each barley type were tempered to each of three moisture contents (approximately 17, 31, or 41%), and then each tempered sample was micronized to each of three surface temperatures (100, 120, or 140°C). Micronized barley samples were substantially lower in RS and in SDS and, therefore, higher in RDS than corresponding unprocessed samples. In general, higher concentrations of RDS and of gelatinized starch were associated with higher initial moisture contents and higher surface temperatures. The lowest concentrations of RS were observed in micronized WB samples. Similar concentrations of RS were observed in corresponding NB and HAB samples. Micronization resulted in slight increases in the onset (T o), peak (T p), and completion (T c) gelatinization temperatures and in substantial reductions in the gelatinization enthalpy (ΔH), the latter reflecting the levels of gelatinized starch in micronized samples, particularly in samples micronized at higher moisture contents and to higher surface temperatures. Endothermic transitions were evident only in samples tempered to 17% moisture or 31% moisture (surface temperature of 100°C only).

International Journal of Agricultural and Biological Engineering, 2015

Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agri... more Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agricultural crop residues, namely, wheat, barley, oat and canola straw. Single pelleting tests were conducted to study the effect of biomass type, hammer mill screen size, and crude glycerol content (co-product of biodiesel industry) on pellet quality (density and durability), ash content and gross heat of combustion. Four types of biomass were ground at three different hammer mill screen sizes of 6.4, 3.2 and 1.6 mm. Each biomass was mixed with three levels of glycerol of 2.5%, 5.0% and 7.5% by weight. Pellets were made at a pre-set load of 4 400 N (138.9 MPa) using single-pelleting unit attached to an Instron testing machine. Quality of pellets was determined by measuring pellet density, relaxed density, durability (measured by pellet drop test) and specific energy required to make a pellet. The gross heat of combustion and ash content of pellets were also determined and compared. The hig...

International Journal of Agricultural and Biological Engineering, Apr 28, 2014

An investigation was conducted to determine the effect of different levels of AK2, a fuel additiv... more An investigation was conducted to determine the effect of different levels of AK2, a fuel additive that reduces ash fusion for agricultural biomass, on the physico-chemical properties of biomass pellets. Three different biomass straws namely, barley, oat and wheat were ground at two hammer mill screen sizes of 0.8 and 1.6 mm. Each ground biomass sample was mixed with three levels of AK2, 0.05, 0.10 and 0.15% by mass and also a blank (no AK2) was set aside for comparison. Pellets were made using single-pelleting unit at a pre-set load of 4400 N corresponding to a pressure of 138.9 MPa. Physical quality of pellets were determined by measuring pellet density, relaxed density, durability and the specific energy required to make a pellet. Pellets having higher durability values (74-88%) were obtained from ground straw at hammer screen size of 0.8 mm and AK2 level of 0.15% compared to other treatments. Carbon, hydrogen, nitrogen and sulfur content of blank pellets and those with 0.15% AK2 at hammer screen size of 0.8 mm were determined. Pellets made with 0.15% AK2 at hammer screen size of 0.8 mm, manufactured by pilot-scale pellet mill, were gasified and the tar content was determined. The tar content of pellets with 0.15% AK2 was significantly lower than blank pellets.

Transactions of the Asabe, 2007

Biomass and Bioenergy, 2014

Crude glycerol, bentonite, lignosulfonate, and softwood residue (wood residue) were investigated ... more Crude glycerol, bentonite, lignosulfonate, and softwood residue (wood residue) were investigated in this study as binders for biomass fuel pellets for thermochemical conversion to enhance pellet quality for transportation and storage. The mass fraction of water of the wheat straw and the wood residue used for pelleting were 0.0676 and 0.0949, respectively. Wheat straw with crude glycerol, bentonite, lignosulfonate, wood residue, and pretreated wood residue with crude glycerol were compressed in a single pelleting unit at a temperature of 95 C. The specific energy consumption, density, dimensional stability, tensile strength, calorific value, ash content, and chemical composition of the pellets made were determined. Results showed that the specific energy consumption for wheat straw pelletization significantly decreased with the addition of lignosulfonate, bentonite, wood residue, and pretreated wood residue with crude glycerol. With the addition of binders chosen in this study, the tensile strength of wheat straw pellets was improved with values ranging from 1.13 to 1.63 MPa. There was a significant increase in the higher heating value (17.98 MJ kg À1 to 18.77 MJ kg À1) when crude glycerol, wood residue, and pretreated wood residue were used as binders. The addition of both pretreated and non-pretreated wood residue significantly decreased the ash content of wheat straw pellets.

2005 Tampa, FL July 17-20, 2005, 2005

ABSTRACT A method was developed for starch-protein separation from chickpea flour. To reduce star... more ABSTRACT A method was developed for starch-protein separation from chickpea flour. To reduce starch-protein agglomeration, isopropyl alcohol was employed as a continuous phase and also as oil solvent. The test was conducted under a combination of two levels of initial feed concentration and three levels of pressure drop. The feed concentration had a marked effect on both starch and protein contents of the overflow and underflow. The pressure drop affected the starch content of the overflow and the protein content of the underflow. A feed concentration of 2.5% (percent of flour in solution) and a pressure drop of 827 kPa resulted in optimum starch-protein separation. This operating condition resulted in protein content (overflow) enrichment to 54.9% (d.b.) and starch content (underflow) enrichment to 51.2% (d.b.) compared with original chickpea flour concentrations of 26.3 and 48.0%, respectively.

2006 Portland, Oregon, July 9-12, 2006, 2006

... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yield... more ... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yields a cationic-protein isolate (Owusu-Ansah and ... and Bioresource Engineering, University of Saskatchewan), and Ms. Hong Qi of the Centre of Agri-Industrial Technology (Alberta Agriculture ...

Canadian Biosystems Engineering, 2013

gras hydrogéné « golden flake » est intéressante et présente peu de pertes d'activité enzymatique.

... It is a cheap source of vegetable protein and constitutes a marked proportion of protein sour... more ... It is a cheap source of vegetable protein and constitutes a marked proportion of protein source of many under-developed and developed ... of this study was to investigate to what extent the sieving classifier has been effective in separating flour particles of desi chana into different ...

Journal of Food Process Engineering, Jul 1, 2009

Chickpea flour was suspended in isopropyl alcohol or deionized water at three concentrations and ... more Chickpea flour was suspended in isopropyl alcohol or deionized water at three concentrations and fractionated to the underflow (starch fraction) and the overflow (protein fraction) using a hydrocyclone. The separation using deionized water resulted in higher starch content in the underflow and higher protein content in the overflow than using isopropyl alcohol. Deionized water resulted in a greater starch separation efficiency (96.3-97.8%) and slightly lower protein separation efficiency (70.4-73.3%) than did isopropyl alcohol. The geometric mean diameter (GMD) of the overflow and underflow increased with a decrease in inlet pressure. The GMD of the underflow fraction in deionized water (26.27-31.28 mm) was greater than that in isopropyl alcohol (17.09-21.12 mm). In both media, the estimated centrifugal and drag forces increased with a decrease of inlet pressure. The centrifugal force applied to the particles in deionized water (1.32 ¥ 10-6-1.67 ¥ 10-6 N) was greater than that in isopropyl alcohol (0.54 ¥ 10-6-0.76 ¥ 10-6 N). Therefore, deionized water resulted in markedly higher starch separation efficiency. However, in isopropyl alcohol, a higher drag force was applied to the particles, and the protein separation efficiency was slightly greater than in deionized water.

Canadian biosystems engineering, Dec 31, 2013

gras hydrogéné « golden flake » est intéressante et présente peu de pertes d'activité enzymatique.

2006 Portland, Oregon, July 9-12, 2006, 2006

... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yield... more ... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yields a cationic-protein isolate (Owusu-Ansah and ... and Bioresource Engineering, University of Saskatchewan), and Ms. Hong Qi of the Centre of Agri-Industrial Technology (Alberta Agriculture ...

Drying Technology, Dec 1, 2006

Powder Technology, Feb 1, 2008

Chemical composition and selected physical properties of chickpea flour, the starch fraction and ... more Chemical composition and selected physical properties of chickpea flour, the starch fraction and the protein fraction were determined. Coefficient of internal friction, coefficient of external friction (on steel, concrete, Teflon and polypropylene), cohesion and adhesion of samples were measured. Chickpea flour and starch fraction had the highest coefficient of internal friction and cohesion, respectively. The coefficient of external friction of chickpea flour and components on concrete was markedly higher than other surfaces. The starch fraction had the highest compressibility and asymptotic modulus at most of the preset loads. The compressibility and asymptotic modulus increased with porosity. Chickpea flour with the lowest porosity had the lowest asymptotic modulus. All samples underwent particle rearrangement during compression.

International Journal of Agricultural and Biological Engineering, Apr 28, 2014

An investigation was conducted to determine the effect of different levels of AK2, a fuel additiv... more An investigation was conducted to determine the effect of different levels of AK2, a fuel additive that reduces ash fusion for agricultural biomass, on the physico-chemical properties of biomass pellets. Three different biomass straws namely, barley, oat and wheat were ground at two hammer mill screen sizes of 0.8 and 1.6 mm. Each ground biomass sample was mixed with three levels of AK2, 0.05, 0.10 and 0.15% by mass and also a blank (no AK2) was set aside for comparison. Pellets were made using single-pelleting unit at a pre-set load of 4400 N corresponding to a pressure of 138.9 MPa. Physical quality of pellets were determined by measuring pellet density, relaxed density, durability and the specific energy required to make a pellet. Pellets having higher durability values (74-88%) were obtained from ground straw at hammer screen size of 0.8 mm and AK2 level of 0.15% compared to other treatments. Carbon, hydrogen, nitrogen and sulfur content of blank pellets and those with 0.15% AK2 at hammer screen size of 0.8 mm were determined. Pellets made with 0.15% AK2 at hammer screen size of 0.8 mm, manufactured by pilot-scale pellet mill, were gasified and the tar content was determined. The tar content of pellets with 0.15% AK2 was significantly lower than blank pellets.

Journal of Food Engineering, Oct 1, 2007

Whole chickpea flour and defatted chickpea flour were slurried in the distilled water at the init... more Whole chickpea flour and defatted chickpea flour were slurried in the distilled water at the initial pH and pH of 9.0. The slurry was subjected to double-pass hydrocyclone process to get overflows and underflows. The effect of defatting and increasing pH on starch-protein separation was evaluated. Application of defatted flour resulted in higher total solid in the underflows. In terms of starch separation, the use of defatted flour at a pH of 9.0 resulted in highest starch content in the underflow with separation efficiency of 99.83%. Using defatted flour at an initial pH of 9.0 resulted in 88.31% (d.b.) protein content in the sediment of the overflows with a separation efficiency from 62.50 to 67.40%. The first-pass process of defatted flour at a pH of 9.0 resulted in protein separation efficiency of 83.11. Defatting of the whole chickpea flour and increasing the pH to 9.0 improved starch and protein separation efficiencies. Starch content of the underflow and protein content of the overflow sediment were enriched to 3.2 and 1.8 times of those of the defatted flour, respectively.

Drying Technology, Dec 1, 2006

Thin-layer drying experiments were performed for drying flax fiber under four different drying co... more Thin-layer drying experiments were performed for drying flax fiber under four different drying conditions. In all drying treatments the absolute humidity of drying air was 0.0065 kg of water per kg of dry air, but the drying temperature were 30, 50, 70, and 100°C. The drying process was modeled using the drying data and five semi−theoretical and empirical models cited in

Transactions of the ASABE, 2007

Thermal properties (thermal conductivity, specific heat, and thermal diffusivity) of chickpea flo... more Thermal properties (thermal conductivity, specific heat, and thermal diffusivity) of chickpea flour, isolated starch, and isolated protein at different temperatures and bulk densities were studied. Thermal conductivity was measured using the line heat source method and calculated using the maximum slope method. Specific heat was measured using differential scanning calorimetry (DSC). Thermal diffusivity was calculated using thermal conductivity, specific heat, and bulk density values. Prediction models were obtained to determine the thermal properties of samples as a function of experimental variables. Thermal conductivity of all three samples showed a linear relationship with temperature and bulk density. Specific heat had a linear relationship with the temperature and moisture content of the sample. Thermal diffusivity of samples had a negative linear relationship with bulk density.

Drying Technology, Dec 1, 2006

Journal of Agricultural and Food Chemistry, 2010

This study determined the effect of micronization (high intensity infrared heating) on the concen... more This study determined the effect of micronization (high intensity infrared heating) on the concentrations of rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS) in normal barley (NB), high-amylose barley (HAB), and waxy barley (WB). The gelatinized starch contents and the thermal properties of the micronized samples also were determined. Samples of each barley type were tempered to each of three moisture contents (approximately 17, 31, or 41%), and then each tempered sample was micronized to each of three surface temperatures (100, 120, or 140°C). Micronized barley samples were substantially lower in RS and in SDS and, therefore, higher in RDS than corresponding unprocessed samples. In general, higher concentrations of RDS and of gelatinized starch were associated with higher initial moisture contents and higher surface temperatures. The lowest concentrations of RS were observed in micronized WB samples. Similar concentrations of RS were observed in corresponding NB and HAB samples. Micronization resulted in slight increases in the onset (T o), peak (T p), and completion (T c) gelatinization temperatures and in substantial reductions in the gelatinization enthalpy (ΔH), the latter reflecting the levels of gelatinized starch in micronized samples, particularly in samples micronized at higher moisture contents and to higher surface temperatures. Endothermic transitions were evident only in samples tempered to 17% moisture or 31% moisture (surface temperature of 100°C only).

International Journal of Agricultural and Biological Engineering, 2015

Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agri... more Experiments were conducted to verify the effect of adding glycerol for pelleting of selected agricultural crop residues, namely, wheat, barley, oat and canola straw. Single pelleting tests were conducted to study the effect of biomass type, hammer mill screen size, and crude glycerol content (co-product of biodiesel industry) on pellet quality (density and durability), ash content and gross heat of combustion. Four types of biomass were ground at three different hammer mill screen sizes of 6.4, 3.2 and 1.6 mm. Each biomass was mixed with three levels of glycerol of 2.5%, 5.0% and 7.5% by weight. Pellets were made at a pre-set load of 4 400 N (138.9 MPa) using single-pelleting unit attached to an Instron testing machine. Quality of pellets was determined by measuring pellet density, relaxed density, durability (measured by pellet drop test) and specific energy required to make a pellet. The gross heat of combustion and ash content of pellets were also determined and compared. The hig...

International Journal of Agricultural and Biological Engineering, Apr 28, 2014

An investigation was conducted to determine the effect of different levels of AK2, a fuel additiv... more An investigation was conducted to determine the effect of different levels of AK2, a fuel additive that reduces ash fusion for agricultural biomass, on the physico-chemical properties of biomass pellets. Three different biomass straws namely, barley, oat and wheat were ground at two hammer mill screen sizes of 0.8 and 1.6 mm. Each ground biomass sample was mixed with three levels of AK2, 0.05, 0.10 and 0.15% by mass and also a blank (no AK2) was set aside for comparison. Pellets were made using single-pelleting unit at a pre-set load of 4400 N corresponding to a pressure of 138.9 MPa. Physical quality of pellets were determined by measuring pellet density, relaxed density, durability and the specific energy required to make a pellet. Pellets having higher durability values (74-88%) were obtained from ground straw at hammer screen size of 0.8 mm and AK2 level of 0.15% compared to other treatments. Carbon, hydrogen, nitrogen and sulfur content of blank pellets and those with 0.15% AK2 at hammer screen size of 0.8 mm were determined. Pellets made with 0.15% AK2 at hammer screen size of 0.8 mm, manufactured by pilot-scale pellet mill, were gasified and the tar content was determined. The tar content of pellets with 0.15% AK2 was significantly lower than blank pellets.

Transactions of the Asabe, 2007

Biomass and Bioenergy, 2014

Crude glycerol, bentonite, lignosulfonate, and softwood residue (wood residue) were investigated ... more Crude glycerol, bentonite, lignosulfonate, and softwood residue (wood residue) were investigated in this study as binders for biomass fuel pellets for thermochemical conversion to enhance pellet quality for transportation and storage. The mass fraction of water of the wheat straw and the wood residue used for pelleting were 0.0676 and 0.0949, respectively. Wheat straw with crude glycerol, bentonite, lignosulfonate, wood residue, and pretreated wood residue with crude glycerol were compressed in a single pelleting unit at a temperature of 95 C. The specific energy consumption, density, dimensional stability, tensile strength, calorific value, ash content, and chemical composition of the pellets made were determined. Results showed that the specific energy consumption for wheat straw pelletization significantly decreased with the addition of lignosulfonate, bentonite, wood residue, and pretreated wood residue with crude glycerol. With the addition of binders chosen in this study, the tensile strength of wheat straw pellets was improved with values ranging from 1.13 to 1.63 MPa. There was a significant increase in the higher heating value (17.98 MJ kg À1 to 18.77 MJ kg À1) when crude glycerol, wood residue, and pretreated wood residue were used as binders. The addition of both pretreated and non-pretreated wood residue significantly decreased the ash content of wheat straw pellets.

2005 Tampa, FL July 17-20, 2005, 2005

ABSTRACT A method was developed for starch-protein separation from chickpea flour. To reduce star... more ABSTRACT A method was developed for starch-protein separation from chickpea flour. To reduce starch-protein agglomeration, isopropyl alcohol was employed as a continuous phase and also as oil solvent. The test was conducted under a combination of two levels of initial feed concentration and three levels of pressure drop. The feed concentration had a marked effect on both starch and protein contents of the overflow and underflow. The pressure drop affected the starch content of the overflow and the protein content of the underflow. A feed concentration of 2.5% (percent of flour in solution) and a pressure drop of 827 kPa resulted in optimum starch-protein separation. This operating condition resulted in protein content (overflow) enrichment to 54.9% (d.b.) and starch content (underflow) enrichment to 51.2% (d.b.) compared with original chickpea flour concentrations of 26.3 and 48.0%, respectively.

2006 Portland, Oregon, July 9-12, 2006, 2006

... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yield... more ... protein is dried resulting in isoelectric protein isolate; if neutralized and dried, it yields a cationic-protein isolate (Owusu-Ansah and ... and Bioresource Engineering, University of Saskatchewan), and Ms. Hong Qi of the Centre of Agri-Industrial Technology (Alberta Agriculture ...

Canadian Biosystems Engineering, 2013

gras hydrogéné « golden flake » est intéressante et présente peu de pertes d'activité enzymatique.