What is the difference between food grade and drug grade amino acids?


  Drug grade and food grade are reagents used for medicine and food respectively. The difference between them is not the difference of purity, but the difference of impurities and synthetic process. The purity of drug grade and food grade may not be higher than that of chemical grade, but the key is that firstly, the reagent can be used for medicine and food without causing harm to human health; Secondly, it cannot contain impurities harmful to human body. Even some impurities that are difficult to remove must be lower than the national standard for the residue of this substance in medicine or food. The requirements for impurities at the food level will be higher than those of pharmaceutical grade reagents that are only used for external use but cannot be taken orally, while there are no such requirements at the chemical level.

  Drug grade amino acids have definite therapeutic effect, while food grade amino acids have no therapeutic effect.

  The types of amino acids can be divided into two types: polar amino acids and nonpolar amino acids.

  1. Nonpolar amino acids

  Including: glycine, alanine, valine, leucine, isoleucine, phenylalanine and proline

  2. Polar amino acids

  Polar neutral amino acids: tryptophan, tyrosine, serine, cysteine, methionine, asparagine, glutamine, threonine acidic amino acids: aspartic acid, glutamate basic amino acids: lysine, arginine, histidine amino acids are also widely used. They are mainly used to prepare compound amino acid infusion in medicine, It is also used as a therapeutic drug and a drug for the synthesis of peptides.

关键词: What is the difference between food grade and drug grade amino acids?