I believe that we are familiar with the egg yolk lecithin, as a phosphatidylcholine as the main component of a variety of phosphatidylcholine mixture, is widely used, but do you know its production process is what? This article is made up by AVT Xiaobian to explain the production process of egg yolk lecithin!
At present, the main production technology of refined egg yolk lecithin is column chromatography and precipitation.
Column chromatography is a common and traditional separation method. It has become one of the main separation methods for lecithin from egg yolk because of the diversity of fillers and the advantages of separation effect. The main fillers for column chromatography are resin, silica gel and alumina.
Precipitation method of purification of lecithin is divided into solvent method, metal ion method, solvent method purification is better than metal ion method, is the first for the purification of lecithin technology; The metal ion precipitation method is mainly realized by the specific binding of metal ions and lecithin.
In addition to the above mentioned, in recent years, the popular production process is also mainly membrane separation method, supercritical carbon dioxide method, enzymatic method, etc., but due to the high cost, high requirements for equipment factors, has not been widely used.
The production process of refined egg yolk lecithin is varied, especially in recent years, the emerging process has increased the extraction rate of refined egg yolk lecithin, but widely used and the most practical production application is the organic solvent extraction method. However, the solvent extraction method is suitable for crude extraction, but on the basis of the solvent extraction method to add some new technical assistance, such as microwave-assisted, ultrasonic-assisted extraction of phospholipids, can improve the efficiency of solvent extraction.
Another important purification and separation method, column chromatography, although the content of about 90% of high purity phosphatidylcholine can be obtained by this method, but the column chromatography separation cycle is long, the loading capacity is low, and many organic solvents with certain toxicity are used, the solvent residue in the product is easy to be shortcomings of this method.
In recent years, the supercritical carbon dioxide method, a popular method to purify egg yolk lecithin extraction rate up to 89.2%, although the supercritical extraction technology requires higher conditions, but because of its simple, high xiao, non-toxic and harmless completely in line with the current development trend of green technology, is also a development direction of egg yolk lecithin production.
If you are interested in AVT's record registration number is F20190001254 (A) egg yolk lecithin PL-100M, please call us for consultation! 400 phone please dial: 400-6262-623! We look forward to hearing from you!
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