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L-lysine hydrochloride is a chemical substance, and lysine is one of the most important amino acids. The amino acid industry has become an industry with considerable scale and importance. Lysine is mainly used in food, medicine and feed.
1. L-lysine hydrochloride is one of the most important amino acids, and the amino acid industry has become an industry with considerable scale and importance. Lysine is mainly used in food, medicine and feed.
2. L-lysine hydrochloride is used as a feed nutrient enhancer and is an essential nutrient for livestock and poultry. It has the functions of enhancing the appetite of livestock and poultry, improving disease resistance, promoting the healing of trauma, and improving the quality of meat. It can enhance the secretion of gastric juice. It is an essential substance for the synthesis of brain nerves, germ cells, protein and hemoglobin.
Although lysine can also be extracted from the hydrolysate of protein raw materials (such as pig blood powder), the lysine used is mainly lysine hydrochloride produced by fermentation, and L-lysine is obtained by extraction and fermentation. Among the fermentation methods, there are two-step method via diaminoheptanoic acid and one-step method using sugar as raw material. Sugar fermentation is used more frequently. Diaminoheptanoic acid production process: L-lysine is synthesized by Escherichia coli. It is a mutant of Escherichia coli that cannot grow without the function of deaminoheptanoic acid decarboxylase, and can not grow without lysine. Glycerin, corn impregnation solution, ammonium phosphate, etc. are used as the medium for culture. A large amount of diaminoheptoic acid will be accumulated in the medium. At this time, the medium should be kept neutral, This is an important factor to improve efficiency. Then use Aerobacter aerogenes or ordinary Escherichia coli, which has decarboxylation function for diaminoheptic acid but has no decarboxylation function for lysine. After dissolving the decarboxylase with toluene, this enzyme can react with the aforementioned diaminoheptic acid to produce L-lysine almost quantitatively, and then separate and refine the finished L-lysine hydrochloride by ion exchange resin. In the synthesis method, caprolactam is used as the starting material or dihydrofuran is used as the starting material. The racemate obtained by the synthesis method must be resolved optically.
L-lysine hydrochloride is a chemical substance, and lysine is one of the most important amino acids. The amino acid industry has become an industry with considerable scale and importance. Lysine is mainly used in food, medicine and feed.
1. L-lysine hydrochloride is one of the most important amino acids, and the amino acid industry has become an industry with considerable scale and importance. Lysine is mainly used in food, medicine and feed.
2. L-lysine hydrochloride is used as a feed nutrient enhancer and is an essential nutrient for livestock and poultry. It has the functions of enhancing the appetite of livestock and poultry, improving disease resistance, promoting the healing of trauma, and improving the quality of meat. It can enhance the secretion of gastric juice. It is an essential substance for the synthesis of brain nerves, germ cells, protein and hemoglobin.
Although lysine can also be extracted from the hydrolysate of protein raw materials (such as pig blood powder), the lysine used is mainly lysine hydrochloride produced by fermentation, and L-lysine is obtained by extraction and fermentation. Among the fermentation methods, there are two-step method via diaminoheptanoic acid and one-step method using sugar as raw material. Sugar fermentation is used more frequently. Diaminoheptanoic acid production process: L-lysine is synthesized by Escherichia coli. It is a mutant of Escherichia coli that cannot grow without the function of deaminoheptanoic acid decarboxylase, and can not grow without lysine. Glycerin, corn impregnation solution, ammonium phosphate, etc. are used as the medium for culture. A large amount of diaminoheptoic acid will be accumulated in the medium. At this time, the medium should be kept neutral, This is an important factor to improve efficiency. Then use Aerobacter aerogenes or ordinary Escherichia coli, which has decarboxylation function for diaminoheptic acid but has no decarboxylation function for lysine. After dissolving the decarboxylase with toluene, this enzyme can react with the aforementioned diaminoheptic acid to produce L-lysine almost quantitatively, and then separate and refine the finished L-lysine hydrochloride by ion exchange resin. In the synthesis method, caprolactam is used as the starting material or dihydrofuran is used as the starting material. The racemate obtained by the synthesis method must be resolved optically.
