In general, the structure of oils includes carbon, hydrogen and oxygen. They are slightly soluble in water, or not at all soluble. However, they are soluble in substances such as alcohol, thinner, kerosene and gasoline. Oils in plants and animals are neutral oils. These oils are formed by forming ester bonds.

Vegetable oils such as olive oil and sunflower oil are unsaturated oils. These oils are liquid at room temperature. Liquid oils are filled with hydrogen in the laboratory and produced margarine. Oils such as tail oil and inner oil are saturated fats. These oils are solid at room temperature.

Fat molecules are the molecules that provide the body with the most energy after carbohydrates.

Within the scope of physical analyzes performed in accredited laboratories, There are also analyzes to determine the number of esters in animal and vegetable oils. During these analyzes carried out in laboratories accredited by domestic and foreign accreditation organizations, standards published by domestic and foreign organizations are taken as basis in order to ensure reliable and impartial results.

For example, the following standards are used to determine the number of esters in animal and vegetable oils:

• TS EN 14103 Animal and vegetable fat derivatives - Fatty acid methyl esters (yame) - Determination of ester and linolenic acid methyl ester content

This standard specifies a method for determining the ester content of fatty acid methyl esters (FAME), which is used for heating or in pure form as a diesel fuel or used as a blending component.

• TS EN 14104 Animal and vegetable fat derivatives - Fatty acid methyl esters (yame) - Determination of acid number

This standard specifies a titrimetric test method for determining the number of acids present in light-colored fatty acid methyl esters (FAME).

These laboratories have a strong technological infrastructure and trained and experienced employees.