steam molecule
1.The method of concentrating the decoloration solution of tylosin is usually carried out by thin film vacuum concentration.In this experiment,the concentration process is modified by using the nanofiltration membrane technique which is free from corrosive due to the extractant solvent and in the same time,heating and decomposition of the antibiotic are eliminated,the concentration course ia also distinctly shortened.In this process the small molecule can be filtered by water,and the quality of the product such as,the tyramine content,the solubility of the product,improved significantly.In addition,the membrane filtration process could save consumption of steam and cooling water.
