Chemical oil refining of edible oil refers to the process of using chemical methods to remove impurities in edible oils and fats to improve the purity and quality of oils and fats. The following is a detailed introduction to the chemical refining of edible oils: I. Process Overview of chemical oil refining The chemical refining …
Oil refining can remove impurities and undesirable ingredients in oils and fats, and can improve the stability and quality of oils and fats. Oil refining is an important part of edible oil processing. Oil refining methods are mainly divided into: physical refining and chemical refining. We can choose physical refining or chemical refining based on …
Oil bleaching refers to the use of some adsorbents that have strong selective adsorption to certain pigments in oils to remove pigments and other impurities in oils under certain conditions, thereby achieving the purpose of bleaching. Bleaching is a physical refining method, usually carried out after alkali refining or water washing, to remove impurities such …
Concept and process of winterization of oils and fats Winterization of oils and fats is a method of crystallization separation. By cooling the oils and fats to 4-6℃, glycerides with higher freezing points are crystallized and precipitated, thereby separating the oil and solid fat. This process usually takes 24 hours of cooling time, and the …
The dewaxing or degreasing process of oils and fats is mainly used to remove waxes, solid lipids and high melting point substances contained in oils and fats to ensure the transparency and fluidity of oils and fats in low temperature environments. This process is essential for some edible oils and industrial oils, especially in cold …
Oil deodorization is the last important step in oil refining. The main purpose is to remove odor, volatile substances and other trace undesirable components in the oil to improve the smell, taste and quality of the oil. Through the deodorization process, high-quality, odor-free edible oil can be produced. Introduction to oil deodorization process 1. Purpose …
The oil decolorization process is an indispensable step in the refining process. It is mainly used to remove impurities such as pigments, oxidation products, residual trace phospholipids and soap residues in oils to improve the color, stability and quality of oils. This process is essential for the production of high-quality, transparent edible oils. Introduction to …
The oil drying process is one of the important steps in the oil refining process. It is usually used to remove residual moisture in the oil to improve the quality, stability and shelf life of the oil. The presence of moisture may cause adverse reactions such as oxidation, deterioration and rancidity of the oil, so …
The water washing process of oil is a common step in oil refining, which is usually used to remove residual impurities, soap stock and some soluble substances (such as phospholipids, free fatty acid neutralization products) in oil. The water washing process can not only improve the purity of oil, but also improve the color, flavor …
Oil deacidification is one of the key steps in the oil refining process, which aims to remove free fatty acids (FFA) in oil and improve the quality and stability of oil. The presence of free fatty acids will affect the flavor, shelf life and food safety of oil, so the deacidification process is crucial to …