Research of surface properties of water-flour suspensions in the presence of hydrocolloids and protein supplements

Authors

DOI:

https://doi.org/10.15587/2312-8372.2018.124286

Keywords:

shape stability of drops of water-flour suspensions, wetting angle, sodium carboxymethyl cellulose, concentrate of animal protein

Abstract

An important issue of improving the technology of non-yeasted gluten-free bread is the development of measures to improve the structural and mechanical properties of dough and bread. To this end, the use of polysaccharide and protein supplements in the dough phase has been proposed. It is shown that the introduction of hydrocolloids and animal protein concentrates into freeze-free gluten-free dough improves the foaming characteristics by reducing the surface tension in water-flour suspensions. This indicates the formation of more stable systems for improving the porous structure of gluten-free non-yeasted bread. It has been found that the proposed supplements-structure improvers as a whole cause a reduction in shape stability, to the greatest extent – in the case of joint application. Thus, the shape stability index of the control sample (water) is 32, and in the presence of 0.5 % sodium carboxymethyl cellulose with supplements 0.5...1.0 % of Scanpro T95 – 20...21. Under the conditions of the introduction of ScanPro T95 in the amount of 1.5 % there is an increase in the surface tension of the liquid phase of the dough (indicator – 27.4). Explain the decrease in the effectiveness of ScanPro T95 in an amount of 1.5 % can be achieved through possible drag-drop processes with this amount of supplement.

Thus, experimental studies have confirmed that the presence of hydrocolloids and animal protein concentrates in the aqueous-flour suspension with flour mix reduces the shape stability index of the drop due to a decrease in its surface tension.

Author Biographies

Ivan Haliasnyi, Petro Vasylenko Kharkiv National Technical University of Agriculture, 92, Mironositskaya str., Kharkiv, Ukraine, 61002

Postgraduate Student

Department of Processing and Food Technologies

Tetyana Gavrish, Petro Vasylenko Kharkiv National Technical University of Agriculture, 92, Mironositskaya str., Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Processing and Food Technologies

Olga Shanina, Petro Vasylenko Kharkiv National Technical University of Agriculture, 92, Mironositskaya str., Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Professor

Department of Processing and Food Technologies

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Published

2017-12-28

How to Cite

Haliasnyi, I., Gavrish, T., & Shanina, O. (2017). Research of surface properties of water-flour suspensions in the presence of hydrocolloids and protein supplements. Technology Audit and Production Reserves, 1(3(39), 58–63. https://doi.org/10.15587/2312-8372.2018.124286

Issue

Section

Food Production Technology: Original Research