The choice of surfactants for the hydrolysis of protein-fat deposits in the production of functional milk-based products

2021 ◽  
pp. 47-50
Author(s):  
Жанна Ивановна Кузина ◽  
Борис Владиленович Маневич

В статье представлены результаты экспериментов, согласно которым общепринятые концентрации 0,5; 1,0; 1,5 % рабочих щелочных растворов характеризуются более высоким поверхностным натяжением, чем вода. Введение комплексоната в растворы щелочных электролитов практически не влияет на эти показатели. При этом достигается степень удаления отложений с контактной поверхности на 14-17 % в зависимости от концентрации гидроксида щелочного металла. По результатам определения поверхностного натяжения и эмульгирующей способности различных видов поверхностно-активных веществ (ПАВ) выявлены наиболее рациональные из них. Для удаления отложений с преимущественным содержанием белковой фракции и функциональных добавок акцент следует направить на применение неионогенных ПАВ с наименьшим показателем поверхностного натяжения при концентрациях щелочной основы 1,7-2,5 %. При наличии значительных отложений жировой фракции и функциональных добавок необходимо использовать анионные ПАВ в смеси с диспергаторами, снижающими пенообразующую способность моющих растворов. Концентрация щелочных компонентов в процессе мойки может варьировать в пределах 0,5-1,2 %. The article presents the results of experiments, according to which the generally accepted concentrations 0.5; 1.0; 1.5 % of working alkaline solutions are characterized by a higher surface tension than water. The introduction of a complexonate into solutions of alkaline electrolytes has practically no effect on these indicators. In this case, the degree of removal of deposits from the contact surface is achieved by 14-17 %, depending on the concentration of alkali metal hydroxide. Based on the results of determining the surface tension and emulsifying abilities of various types of surfactants, the most rational of them were identified. To remove deposits with a predominant content of the protein fraction and functional additives, the emphasis should be on the use of nonionic surfactants with the lowest surface tension at alkaline base concentrations 1.7-2.5 %. In the presence of significant deposits of the fat fraction and functional additives, it is necessary to use anionic surfactants in a mixture with special dispersants that reduce the foaming ability of washing solutions. The concentration of alkaline components in the washing process can vary within 0.5-1.2 %.

1977 ◽  
Vol 16 (11) ◽  
pp. 2834-2837 ◽  
Author(s):  
Duck J. Yang ◽  
William L. Jolly

2011 ◽  
Vol 1333 ◽  
Author(s):  
Krzysztof Fic ◽  
Grzegorz Lota ◽  
Elzbieta Frackowiak

ABSTRACTEffect of surfactants present in alkaline solutions on the capacitance of carbon electrodes has been studied. Different types of surfactants have been selected for this target. Concentration of these electrolyte additives was 0.005 mol L-1. Decreasing the surface tension in the electrode/electrolyte interface allows better penetration of electrolyte into the pores. Detailed analysis of capacitance versus current load, frequency dependence as well as self-discharge, cyclability and behaviour in wider voltage window proved a useful effect of Triton X-100 on capacitor operating in alkaline solution. Influence of surfactant concentration has also been investigated.


2012 ◽  
Vol 424-425 ◽  
pp. 871-875
Author(s):  
Yue Feng ◽  
Li Ji ◽  
Hui Qin Liu ◽  
Jian Xin Jiang

Effect of the natural non-ionic surfactant Tea Saponin on hydrolysis of furfural residues by cellulases from Trichoderma pseudokoningii and Trichoderma koningii was assayed. Glucose concentrations released by T. cellulases were 4.16 g/L and 1.92 g/L, respectively. The contents increased to 13.77 g/L and 6.23 g/L in the corresponding digests with addition of surfactant (12 g/L). Glucose yields were enhanced to 52.54% and 34.16% with the surfactant concentrations of 10.5 g/L and 12 g/L, respectively. The results indicated that Tea Saponin was beneficial for hydrolysis of furfural residues. Tea Saponin could maintain surface tension in a low level even it was hydrolyzed by cellulases, suggesting that the surfactant was suitable for lignocellulose saccharification industry.


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