scholarly journals The Inhibitory Effect of Soy Protein Isolate on Atherosclerosis in Mice Does Not Require the Presence of LDL Receptors or Alteration of Plasma Lipoproteins

2002 ◽  
Vol 132 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Michael R. Adams ◽  
Deborah L. Golden ◽  
Mary S. Anthony ◽  
Thomas C. Register ◽  
J. Koudy Williams
Keyword(s):  
Soy Protein ◽  
Soy Protein Isolate ◽  
Inhibitory Effect ◽  
Protein Isolate ◽  
Plasma Lipoproteins ◽  
Ldl Receptors

scholarly journals Detection of Genistein in Soy Protein Isolate and Soymilk Powder by Spectrophotometric and Chromatographic Method

2019 ◽  
Vol 11 ◽  
pp. 69-73
Author(s):  
Md. Anisur Rahman Mazumder ◽  
Parichat Hongsprabhas
Keyword(s):  
Soy Protein ◽  
Cultured Cells ◽  
Soy Protein Isolate ◽  
Milk Powder ◽  
Density Lipoprotein ◽  
Inhibitory Effect ◽  
Protein Isolate ◽  
Hplc Method ◽  
Spectrophotometric Methods

Genistein proposed as a treatment for osteoporosis for postmenopausal women, elderly men, lowering cardiovascular disease and reduces hormone dependent cancers. Genistein also exerted inhibitory effect on lipid peroxidation induced in vitro by pro-oxidant agents on model and natural membranes on cultured cells and on low density lipoprotein. Genistein detection in soy products is very much important for Food Scientist. Gensitein can be detected by UV-Visible spectrophotometric and HPLC method. This study focused on the detection of genistein by HPLC and spectrophotometric methods. Genistein content of both soy protein isolate (SPI) and spray dried soy milk powder (SMP) was determined by spectrophotometry (93.12±1.15 and 74.78±0.75 mg/100g, respectively) were slightly higher but not significantly differ than HPLC analysis (89.67±5.16 and 72.34±0.27 mg/100g, respectively). This study suggested that genistein and its glycoside could be detected by spectrophotometric methods with high accuracy.

scholarly journals Compression Molded Soy Protein Films with Exopolysaccharides Produced by Cider Lactic Acid Bacteria

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2106
Author(s):  
Jone Uranga ◽  
Mª Goretti Llamas ◽  
Ziortza Agirrezabala ◽  
María Teresa Dueñas ◽  
Oier Etxebeste ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Soy Protein ◽  
Fungal Spores ◽  
Soy Protein Isolate ◽  
Degradation Process ◽  
Inhibitory Effect ◽  
Protein Isolate ◽  
Fungistatic Activity ◽  
Vis Spectroscopy

Two exopolysaccharide (EPS)-producing lactic acid bacteria (LAB) strains, Liquorilactobacillus (L.) sp CUPV281 and Liquorilactobacillus (L.) mali CUPV271, were isolated from Spanish apple must. Each of the strains produced a dextran, with different branching degrees, to be incorporated into soy protein isolate (SPI) film-forming formulations. Films were prepared by compression molding, a more rapid processing method than solution casting and, thus, with a greater potential for scaling-up production. Thermal analysis showed that SPI and EPS start the degradation process at temperatures above 190 °C, confirming that the compression temperature selected (120 °C) was well below the corresponding degradation temperatures. Resulting films were transparent and homogeneous, as shown by UV-Vis spectroscopy and SEM, indicating the good compatibility between SPI and EPS. Furthermore, FTIR analysis showed that the interactions between SPI and EPS were physical interactions, probably by hydrogen bonding among the polar groups of SPI and EPS. Regarding antifungal/fungistatic activity, LAB strains used in this study showed an inhibitory effect on germination of fungal spores.

Antimicrobial Activity of Soy Protein Isolate-Essential Oil Monomers Edible Composite Films for Chilled Pork Preservation

2013 ◽  
Vol 726-731 ◽  
pp. 638-641
Author(s):  
Yun Bin Zhang ◽  
Jing Wen Wang ◽  
Juan Jiang ◽  
Yue Xia Li
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Composite Films ◽  
Inhibitory Effect ◽  
Edible Films ◽  
Protein Isolate ◽  
Meat Samples ◽  
Chilled Pork

Soy protein isolate (SPI)-essential oil monomers edible composite films were prepared by casting and solvent evaporation method. Films antibacterial activity and preservation effect on chilled pork were investigated. The results indicated that composite films showed significant inhibitory effect on the growth ofEscherichia coli,Staphylococcus aureus,Pseudomonasandyeast. And the antimicrobial activity of films containing cinnamaldehyde was the highest. The films containing 6% essential oil monomers had better preservation effect on the meat samples compared with those without package or packed with single SPI edible films.

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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