subcritical water extraction equipment

Flavored fats and oils are divided into two kinds, one is the natural flavor, such as pepper oil, black pepper, cedarwood, incense, sandalwood, rose, rosemary, etc., and the other is the fats and oils in the role of high temperature, the occurrence of a variety of complex chemical reactions to generate aromatic substances, so as to increase the aroma of the dishes: fats and oils after heating itself will produce free fatty acids and volatile flavor aldehydes, ketones; raw materials in the carbohydrates in the heating process will also produce Aroma components, such as glucose heating will generate furan and a variety of carbonyl compounds, starch heating will generate organic acids, phenols and other aroma components; in addition, amino acids can also be carbonyl ammonia reaction with the carbonyl group in the fat, thus producing attractive aroma. These aroma substances have different boiling points, generally 70-300 ℃, so the film evaporator can be used in the case of low-temperature solvent removal in the oil and grease, while not destroying the aroma of the oil and grease. Scraper thin film evaporator is the shell outside the jacket, the inside of which is equipped with rotatable scraper, scraper by the cylinder center of the rotating shaft drive. Raw material liquid from the evaporator along the tangential to join, in gravity and rotate the scraper under the drive, along the inner wall of the shell to form a downward spiral of the film, gross oil from the bottom out of the device, the solvent gas is discharged by the upper part of the vacuum. The outstanding advantage of this evaporator is the adaptability of the material is very strong, the heating time of the material is short, about 5 seconds to 10 seconds, and work under vacuum conditions, more favorable to the heat-sensitive materials, to maintain a variety of ingredients do not produce decomposition, to ensure that the product does not lose the aroma!

This equipment uses butane as the extraction solvent,and it is divided into four parts: 1. Extraction system; 2. Mixed oil evaporation system; 3. Circulation system; 4. Solvent recovery system.

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