STUDY OF THE COMPOSITION OF SOAP STOCK AND WASH WATER OBTAINED BY A COMBINED METHOD OF REFINING COTTONSEED OIL IN MICELLA

STUDY OF THE COMPOSITION OF SOAP STOCK AND WASH WATER OBTAINED BY A COMBINED METHOD OF REFINING COTTONSEED OIL IN MICELLA

Authors

  • B.M. Khamitova M. Auezov South Kazakhstan State University, Shymkent, Kazakhstan
  • A.R. Taspoltayeva M. Auezov South Kazakhstan State University, Shymkent, Kazakhstan
  • N.I. Saidiganiyeva M. Auezov South Kazakhstan State University, Shymkent, Kazakhstan

DOI:

https://doi.org/10.55956/YWTH2583

Keywords:

miscella, soapstock, fatty acids, double pressing, extrusion technology, hydrogenated fat, alkaline refining, phospholipids, gossypol

Abstract

The article considers the characteristics of the composition of soapstock and wash water obtained during the purification of cottonseed oil in a miscella using a combined method. Soapstock contains soap, oil, phosphorus compounds, dyes, mineral and mechanical additives, etc., and has a solution in water. To separate free fatty acids from soapstock, it is treated with mineral acids or alkalis (to saponify neutral oil), followed by distillation. Comparative indicators of the lipid composition, neutral oil, and color of soapstock obtained by traditional (control) and mixed methods, as well as indicators of multiple washing of refined cottonseed oil in a miscella are presented. It was found that due to hydrogen bonds of polarized substances in a cotton micelle, their molecular structures are formed, which reduces the intensity of cottonseed oil hydration and alkaline neutralization processes in the micelle.

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Published online

2025-03-30

Issue

Section

Food Engineering Technologies
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