Sesame Oil Refining

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1. Degumming: That is, removing phospholipids, mucus, resins, proteins, sugars, trace metals, etc. in crude oil, generally adopts hydration method, acid refining method, etc.

2. Deacidification: Unrefined crude oil contains a certain amount of free fatty acids. The process of removing free fatty acids from oil is called deacidification. Deacidification methods include alkali refining, distillation, solvent extraction and esterification. Alkali refining and steam distillation (physical refining) using acid-base neutralization are the most widely used in production.

3. Dehydration: Moisture not only affects the transparency of the oil but also easily breeds bacteria, which accelerates the deterioration of the oil. Use heating and vacuum drying to remove the water in the refined oil.

4. Decolorization: Using active adsorbents such as activated clay, activated carbon and other adsorbents that have a strong selective adsorption effect on pigments, to absorb pigments and other impurities in oil under certain conditions, so as to achieve the purpose of decolorization. After the crude oil is treated by adsorption, it can improve the color of the oil, remove some trace metal ions and some substances that can cause hydrogenation catalyst poisoning.

5. Deodorization is a process that utilizes the difference in volatilization of odorous substances in oil and triglycerides to remove odorous substances through steam distillation under high temperature and high vacuum. The principle of steam distillation deodorization (also known as steam stripping method) is that water vapor passes through oil containing odorous components, and the vapor-liquid surface contacts, and the water vapor is saturated by volatile odorous components, and escapes according to its partial pressure ratio, so as to achieve the purpose of removing odor components.

The role of sesame oil

1. Lowering blood pressure: Black sesame oil is rich in mineral elements, especially magnesium, which is beneficial to reduce osmotic pressure in the body. The sesame contained in sesame seeds can lower blood pressure by inhibiting the formation of vascular peroxides.

2. Promote digestion: Black sesame oil contains certain volatile compounds, and it can be cooked and eaten properly with other ingredients, which is beneficial to promote the secretion of saliva, has a good appetite-promoting effect, and is beneficial to help the stomach digest and absorb food.

3. Relieve constipation: Black sesame oil contains a lot of oil, which belongs to a kind of oily food, which is beneficial to enhance the smoothness of the intestinal tract, promote the peristalsis ability of the intestinal tract, help laxative effect, prevent the accumulation of stool in the body, and form Intestinal toxicity, so eating black sesame oil can laxative and detoxify.

4. Enhance memory: Black sesame oil contains a certain amount of choline and rich unsaturated fatty acids. After eating, it can directly pass through the blood-brain barrier, promote the activity of brain cells, improve the memory of the human brain, and delay the decline of brain function. It has a good brain-building and intellectual-improving effect.

5. Nutrient trace elements: Black sesame oil contains a variety of essential amino acids, which can accelerate the metabolic function of the human body under the participation of vitamin E and vitamin B1; iron and vitamin E contained in black sesame oil can prevent anemia, activate brain cells, eliminate an important component of vascular cholesterol; the fat contained in black sesame oil is mostly unsaturated fatty acids and a variety of minerals. These nutrients are beneficial to maintain blood vessel elasticity, prevent fat accumulation in the cardiovascular system to a certain extent, and have the effect of prolonging life.

6. Enrich blood: Black sesame oil is rich in iron, often eating black sesame oil can improve iron deficiency anemia, and has the effects of nourishing blood and Qi.

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