This standard specifies the method for the determination of free amino acids in tobacco leaves by an amino acid analyzer. This standard applies to aspartic acid (Asp), threonine (Thr), serine (Ser), asparagine (Asn), glutamic acid (Glu), proline (Pro), and glycine (Gly) in tobacco leaves. ), alanine (Ala), valine (Val), cystine (Cys), isoleucine (Ile), leucine (Leu), tyrosine (Tyr), phenylalanine ( Phe), β-alanine (β-Ala), β-aminoisobutyric acid (β-Aia), γ-aminobutyric acid (γ-Aba), lysine (Lys), histidine (His) Determination of 21 free amino acids such as tryptophan (Trp) and arginine (Arg).
YC/T 282-2009 Referenced Document
YC/T 31-1996 Tobacco and tobacco products--Preparation of test sample and determination of water content--Over method