Mechanical Properties of Soy Protein Isolate and Whey Protein Concentrate-Based Films

2012 ◽  
Vol 573-574 ◽  
pp. 181-184
Author(s):  
Yu Peng Gao ◽  
Zhe Wang ◽  
Yan Qing Niu ◽  
Zhong Su Ma
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Whey Protein ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Elongation At Break ◽  
Better Than

The mechanical properties difference between soy protein isolate-based film and whey protein-based film was researched. The elongation at break, tensile strength of the pure soy protein isolate film both are better than that of the pure whey protein concentrate film, which is respectively 10 times and 25 times. After compounding the property of the whey protein concentrate film ameliorates. The elongation at break, tensile strength of the whey protein concentrate film increases respectively by 9 times and 16 times after the glutin is mixed. The elongation at break, tensile strength of the whey protein concentrate film increases by 1.1 times and 12 times after the chitosan is added.

Genipin crosslinked soy-whey based bioactive material for atorvastatin loaded nanoparticles: preparation, characterization and in vivo antihyperlipidemic study

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 93275-93287 ◽  
Author(s):  
Jovita Kanoujia ◽  
Mahendra Singh ◽  
Pooja Singh ◽  
Poonam Parashar ◽  
Chandra Bhusan Tripathi ◽  
...  
Keyword(s):  
Whey Protein ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Lipid Lowering ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Bioactive Material

Lipid lowering potential of soy protein isolate and whey protein concentrate as novel nanomaterial for atorvastatin nanoparticles.

scholarly journals Microencapsulation of Chia Seed Oil (Salvia hispanica L.) in Spray and Freeze-Dried Whey Protein Concentrate/Soy Protein Isolate/Gum Arabic (WPC/SPI/GA) Matrices

Proceedings ◽  
2020 ◽  
Vol 53 (1) ◽  
pp. 22
Author(s):  
María Gabriela Bordón ◽  
Gabriela Noel Barrera ◽  
Maria C. Penci ◽  
Andrea Bori ◽  
Victoria Caballero ◽  
...  
Keyword(s):  
Soy Protein ◽  
Seed Oil ◽  
Soy Protein Isolate ◽  
Gum Arabic ◽  
Protein Isolate ◽  
Whey Protein Concentrate ◽  
Drying Methods ◽  
Protein Concentrate ◽  
Chia Seed ◽  
Chia Seed Oil

Microencapsulation by different drying methods protects chia seed oil (CSO) against oxidative degradation, and ultimately facilitates its incorporation in certain foods. The aim of this work was to analyze the influence of freeze or spray drying, as well as of the coacervation phenomena in a ternary wall material blend—whey protein concentrate/soy protein isolate/gum arabic (WPC/SPI/GA)—on the physico–chemical properties of microencapsulated CSO. Differential scanning calorimetry studies indicated that the onset, peak, and end set temperatures for denaturation events shifted from 72.59, 77.96, and 78.02 to 81.34, 86.01, and 92.58 °C, respectively, in the ternary blend after coacervation. Oxidative stability indexes (OSI) of powders were significantly higher (p < 0.05) for both drying methods after inducing coacervation—from 6.45 to 12.04 h (freeze-drying) and 12.05 to 15.31 h (spray drying)—which was possibly due to the shifted denaturation temperatures after biopolymer interaction. It can be concluded that the ternary WPC/SPI/GA blend constitutes an adequate matrix to encapsulate CSO.

scholarly journals Preparation and Compatibilization of PBS/Whey Protein Isolate Based Blends

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3313 ◽  
Author(s):  
Maria-Beatrice Coltelli ◽  
Laura Aliotta ◽  
Vito Gigante ◽  
Maria Bellusci ◽  
Patrizia Cinelli ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Protein Content ◽  
Whey Protein ◽  
Protein Isolate ◽  
Glycerol Monostearate ◽  
Soy Lecithin ◽  
Butylene Succinate ◽  
Elongation At Break

In this paper the production of biopolymeric blends of poly(butylene succinate) PBS and plasticized whey protein (PWP), obtained from a natural by-product from cheese manufacturing, has been investigated for the production of films and/or sheets. In order to add the highest possible whey protein content, different formulations (from 30 to 50 wt.%) were studied. It was found that by increasing the amount of PWP added to PBS, the mechanical properties were worsened accordingly. This trend was attributed to the low compatibility between PWP and PBS. Consequently, the effect of the addition of soy lecithin and glycerol monostearate (GMS) as compatibilizers was investigated and compared to the use of whey protein modified with oleate and laurate groups obtained by Schotten-Baumann reaction. Soy lecithin and the Schotten-Baumann modified whey were effective in compatibilizing the PWP/PBS blend. In fact, a significant increase in elastic modulus, tensile strength and elongation at break with respect to the not compatibilized blend was observed and the length of aliphatic chains as well as the degree of modification of the Schotten–Baumann proteins affected the results. Moreover, thanks to DSC investigations, these compatibilizers were also found effective in increasing the PBS crystallinity.

scholarly journals Mechanical Properties of a Soy Protein Isolate–Grafted–Acrylate (SGA) Copolymer Used for Wood Coatings

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1137
Author(s):  
Bin Feng ◽  
Di Wang ◽  
Yuhui Li ◽  
Junpeng Qian ◽  
Chenlei Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Wood Coating ◽  
Pencil Hardness ◽  
Soybean Protein Isolate ◽  
Elongation At Break ◽  
Wood Coatings

Changing demands have led to rapidly growing interest in the modification of waterborne wood coatings. To improve the performance of a polyacrylate wood coating, especially the strength, hardness, and abrasion resistance of the film, a soy protein isolate–grafted–acrylate (SGA) copolymer was prepared in an aqueous solution with ammonium persulfate (APS) as an initiator and sodium pyrosulfite (SPS) as an unfolding agent for the soybean protein isolate (SPI). The emulsion was characterized using transmission electron microscopy, Fourier-transform infrared spectroscopy (FTIR), and a particle size analyzer. Furthermore, the mechanical properties of the film, including the tensile strength, elastic modulus, elongation at break, and pencil hardness, were measured. The results showed that the glass transition temperature of the polyacrylic resin decreased to 35 °C after the SPI grafting. The elastic modulus of the film increased from 0.317 to 46.949 MPa, and the elongation at break decreased from 453.133% to 187.125% as the addition of SPI varied from 0 to 4 g, respectively. The pencil hardness of the wood coating increased from HB to 3H. This paper proposes a feasible route for the utilization of SPI for wood coatings.

Effect of Phthalic Anhydride Content on Properties of Soy Protein Isolate/Kapok Husk Biofilm

2015 ◽  
Vol 754-755 ◽  
pp. 176-180 ◽  
Author(s):  
Ramyah Kalai Chelvie Pani Sellivam ◽  
Salmah Husseinsyah ◽  
Teh Pei Leng ◽  
Marliza Mosthapa Zakaria ◽  
Hanafi Ismail
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Phthalic Anhydride ◽  
Soy Protein ◽  
Modulus Of Elasticity ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Interfacial Interaction ◽  
Casting Method ◽  
Elongation At Break

Soy protein isolate (SPI)/kapok husk (KH) based biofilms were prepared by casting method. The effect of phthalic anhydride (PA) content on tensile properties and morphology were studied. The PA was use as a crosslink agent. It was found that the increasing PA content have increased the tensile strength and modulus of elasticity of biofilms, whereas the elongation at break decreased. At 1.5 % of PA showed the highest tensile strength and modulus of elasticity of crosslink biofilms. The morphology study indicates the crosslinking with PA improved the interfacial interaction between KH and SPI matrix.

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