Effects of Screw Speed, Moisture Content, and Die Temperature on Texturization of Extruded Soy Protein Isolate

2016 ◽  
Vol 45 (8) ◽  
pp. 1170-1176 ◽  
Author(s):  
Ji Hoon Park ◽  
Dae Il Kang ◽  
Gi Hyung Ryu
Keyword(s):  
Moisture Content ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Screw Speed ◽  
Die Temperature

The Experimental Study about the Influence of Extrusion System Parameters on Textured Degree of High Moisture Content Fibriform Imitated Meat

2011 ◽  
Vol 188 ◽  
pp. 250-253 ◽  
Author(s):  
P.L. Sun ◽  
L.Z. Jiang ◽  
Y. Sun ◽  
Z.L. Sun ◽  
T.M. Xie ◽  
...  
Keyword(s):  
Moisture Content ◽  
Soy Protein ◽  
Soybean Protein ◽  
Protein Isolate ◽  
High Moisture Content ◽  
High Moisture ◽  
Screw Speed ◽  
Soybean Protein Isolate ◽  
System Parameters ◽  
Twin Screw

The high-emulation meat with 60% ~ 80% moisture content made use of high humidity extrusion technology was prepared with soybean protein isolate, defatted soybean meal and wheat gluten as main raw materials. The effect of extrusion system parameters (extrusion temperature, screw rpm , moisture content and soybean protein isolate content) on product textured degree was studied. Results showed that: the influence of the moisture content on the product textured degree was the most important, and screw speed was less influential. The textured degree of high moisture content fibriform imitated meat increased first and then decreased with the increasing of extrusion temperature, screw rpm, moisture content and soybean protein isolate content. So, better textured degree could be received by increasing the parameters to advisable numerical value, and the product would have an obvious fibroid structure. The conclusion could also be used as a value reference in the production of high-emulation meat of livestock and poultry. At present, we are committed to produced emulation meat with soy protein. High moisture extraction[1] is jointly developed by Clextral Co. France and Pro. Co.Ltd was one way of producing simulation meat. This technology, with special cooling die head twin-screw extruder for main equipment, prepared textured soy protein production at the moisture content of material higher than 45%. It had been discovered that with the increase of moisture content of textured soy protein the textured rate of production would be increased. The elastic, resiliency and fibroid structure would be much more like the animal meat. At present, extrusion of material moisture higher than 60% could not be achieved in the domestic. The twin-screw extruding technology on soy protein with moisture content 60%~80% was studied in this subject. Production condition of high moisture content fibrous imitated meat would be established and technical features would be supplied to domestic extruding equipment through the influence of extruding temperature, material moisture content, screw speed and material composition on soy protein molecular recombination and fibrosis.

scholarly journals Functional extruded snacks with lycopene and soy protein

2010 ◽  
Vol 30 (1) ◽  
pp. 143-151 ◽  
Author(s):  
Paula Fernanda Pinto da Costa ◽  
Mariano Bueno Marcondes Ferraz ◽  
Valquíria Ros-Polski ◽  
Ernesto Quast ◽  
Fernanda Paula Collares Queiroz ◽  
...  
Keyword(s):  
Moisture Content ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Extrusion Process ◽  
Protein Isolate ◽  
Raw Material ◽  
Functional Ingredients ◽  
Red Color ◽  
Functional Product ◽  
Corn Snacks

In this work, the effects of thermoplastic extrusion process parameters (raw material moisture content and temperature) and the addition of functional ingredients (lycopene and soy protein) on quality characteristics of a base-formulation for extruded corn snacks were studied, with the objective of developing an easy-to-eat functional product. A single-screw Labor PQ 30 model Inbramaq extruder was used for extrusion and a central composite rotational design (CCRD) was followed. The independent variables were: i) percentage of soy protein isolate (0-30%); ii) percentage of lycopene preparation (0-0.1%); iii) raw material moisture content (20-30%); and iv) 5th zone temperature (100-150 °C). The expansion index reached maximum values with the lowest raw material moisture content (20%) and intermediate temperatures (approximately 125 °C). Instrumental hardness was higher with high moisture and low temperature; however, increasing the percentage of soy protein was beneficial for the texture of the product, reducing hardness. The red color intensity increased with the increase in lycopene content and moisture, and with the reduction of temperature. Sensory acceptance tests were carried out for two products, with maximum percentages of the functional ingredients, 20% moisture and temperatures of 125 and 137 °C, with greater acceptance for the product extruded at 125 °C.

scholarly journals Rheology and Water Absorption Properties of Alginate–Soy Protein Composites

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1807
Author(s):  
Estefanía Álvarez-Castillo ◽  
José Manuel Aguilar ◽  
Carlos Bengoechea ◽  
María Luisa López-Castejón ◽  
Antonio Guerrero
Keyword(s):  
Soy Protein ◽  
Water Solubility ◽  
Divalent Cations ◽  
Low Cost ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Guluronic Acid ◽  
Wide Range ◽  
Anionic Polysaccharides ◽  
Porous Matrices

Composite materials based on proteins and carbohydrates normally offer improved water solubility, biodegradability, and biocompatibility, which make them attractive for a wide range of applications. Soy protein isolate (SPI) has shown superabsorbent properties that are useful in fields such as agriculture. Alginate salts (ALG) are linear anionic polysaccharides obtained at a low cost from brown algae, displaying a good enough biocompatibility to be considered for medical applications. As alginates are quite hydrophilic, the exchange of ions from guluronic acid present in its molecular structure with divalent cations, particularly Ca2+, may induce its gelation, which would inhibit its solubilization in water. Both biopolymers SPI and ALG were used to produce composites through injection moulding using glycerol (Gly) as a plasticizer. Different biopolymer/plasticizer ratios were employed, and the SPI/ALG ratio within the biopolymer fraction was also varied. Furthermore, composites were immersed in different CaCl2 solutions to inhibit the amount of soluble matter loss and to enhance the mechanical properties of the resulting porous matrices. The main goal of the present work was the development and characterization of green porous matrices with inhibited solubility thanks to the gelation of alginate.

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