Sustainable co‐production of L‐theanine via an integrated biocatalytic system exploiting atrazine degradation
L‐Theanine is a health‐beneficial tea‐specific amino acid. This amino acid is synthesized through the catalytic action of L‐theanine synthase or its isoenzymes, utilizing ethylamine and L‐glutamic acid as primary substrates. As the rate‐limiting substance, traditional ethylamine synthesis relies on tea root metabolism,...