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Amino acids are organic compounds containing both amino and carboxyl groups. Over 300 natural amino acids have been identified, with approximately 22 being essential for human physiology. Keysino’s comprehensive solutions have been widely applied in the production processes of various amino acids, such as lysine, tryptophan, threonine, and arginine. Through membrane-based filtration of fermentation broth, insoluble impurities like microbial cells, solid proteins, and colloids are thoroughly removed, along with most macromolecular substances. This results in clarified feed liquid entering resin systems, which enhances resin utilization efficiency, reduces contamination, and effectively addresses wastewater challenges. Furthermore, Keysino’s membrane separation and continuous moving bed technologies are extensively utilized in the amino acid industry, including ceramic membrane filtration, fermentation broth clarification, and reclaimed water reuse, achieving process optimization and cost reduction.