Patent ID: 11905538
Assignee: BASF SE
Field: Biotechnology (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 0:
1. A herbicidal formulation comprising an L-glufosinate composition wherein said L-glufosinate composition is prepared by reacting D-glufosinate with a D-amino acid oxidase (DAAO) enzyme to form PPO (2-oxo-4-(hydroxy(methyl)phosphinoyl)butyric acid); and
aminating the PPO to L-glufosinate by an enzyme selected from the group consisting of a transaminase (TA), using an amine group from one or more amine donors, and an L-amino acid dehydrogenase (LAAD) enzyme in the presence of an ammonia source,
wherein at least 90% of the D-glufosinate is converted to L-glufosinate,
wherein D-glufosinate is present in an amount of 10% or less by weight of the sum of L-glufosinate, PPO, and D-glufosinate,
and wherein said formulation further comprises at least one adjuvant.