Physicochemical properties of wet-glycated soy proteins

On a lab-scale, glycation is generally a lengthy process that would be costly if replicated on an industrial scale. In this study, a simplified method for glycating soy protein isolate has been developed. Soy proteins were glycated with allulose, fructose, and glucose in the presence of water. Free amino group content, protein solubility, browning index, and reducing sugar concentration were measured for the glycated proteins. Fourier Transform Infrared (FT-IR) spectroscopy was used to examine structural changes, and hydration behavior was evaluated using Time Domain Nuclear Magnetic Resonance (TD-NMR) relaxometry through T2 relaxation time measurements. The results showed that proteins could be glycated under these austere conditions and with minimal control. It was found that high temperatures were not favorable for glycation, and lower temperatures could be preferred. At high temperatures, proteins become more denatured and less soluble, as shown through the Lowry method for protein solubility and TD-NMR results. Higher browning was observed at a higher temperature, primarily when allulose and fructose were used for glycation. The highest glycation was obtained with glucose, while allulose and fructose showed the lowest reactivity under the proposed conditions. Proteins with low solubility had longer T2 relaxation times, indicating more free water and weaker water-binding capability.


Investigating physicochemical properties of wetglycated soy proteins
Zia, Muhammed Bin; Öztop, Halil Mecit; Mert, Behiç; Department of Food Engineering (2020-8)
On a lab-scale, glycation is generally a lengthy process which if replicated on an industrial scale, would be costly. In this study, a simplified method for glycating soy protein isolate has been developed. Soy proteins were glycated with allulose, fructose and glucose in the presence of water. The protein-water ratio was changed from ½ to 1 (w/w) and glycation was conducted at 100°C and 130°C for 15 minutes, and samples were also dried at 50°C, 55% relative humidity for 1 day. The physicochemical pro...
Study of sol-gel processing for fabrication of low density alumina microspheres
Dilsiz, N; Akovali, G (2002-07-01)
A sol-gel process for producing microspheres of low density alumina has been developed. A Dispal alumina sol and aluminum monohydrate were used as starting materials. Microspheres with spherical shape and controllable size have been produced by using a drop generation technique, The technique consists of producing a continuous stream Of uniform droplets of alumina sol and then converting the drops into a rigid form by exposing them to an ammonium hydroxide gelation medium. By using this technique. alumina s...
Analyzing the Effects of Inventory Cost Setting Rules in a Disassembly and Recovery Environment
Akcali, Elif; Bayındır, Zeynep Pelin (null; 2005-10-15)
We consider a salvaging facility that satisfies the demand for remanufactured parts that can be recovered from the end-of-life products. One of the difficulties faced in planning for such a system is the determination of the opportunity cost associated with carrying recovered parts inventory. In this study we investigate the effect of different rules to determine this opportunity cost on the performance of the system. The performance of several different rules is assessed by a computational study under a pr...
Production of Tungsten by Pulse Current Reduction of CaWO4
Özdemir, Furkan; Erdoğan, Metehan; Elmadağlı, Mustafa; Karakaya, İshak (null; 2016-02-14)
Tungsten is mainly produced by H-2 reduction of WO3 which makes its production difficult and costly. A promising method was recently reported for direct electrochemical production of tungsten from CaWO4 (scheelite) which is estimated as the seventy percent of the all tungsten reserves of the world. This paper investigates the application of pulse current in the electrochemical reduction of CaWO4 pellets attached to a current collector. The electrolyte was composed of calcium chloride and sodium chloride sal...
Hosseinpour Dashatan, Saeid; Arıkan, Mehmet Ali Sahir; Parnas, Kemal Levend; Department of Mechanical Engineering (2021-8-13)
In some applications of composite laminates, thickness variation is necessary to fulfill specific design requirements. One way of accomplishing the intentional thickness variation in composite structures is terminating some plies within a layup. Introducing ply drop-offs causes geometrical and material discontinuities, which lead to high localized stresses around drop-off locations. Despite all the progress made in damage analyses of tapered composite laminates, estimating their load-carrying capacity and s...
Citation Formats
M. B. Zia, S. Namlı, and H. M. Öztop, “Physicochemical properties of wet-glycated soy proteins,” LWT, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: