ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,855, issued on May 19, was assigned to Amano Enzyme Inc. (Nagoya, Japan).

"Polypeptide having esterification activity for L-menthol and/or hydrolyzing activity for L-menthol ester" was invented by Kazunori Yoshida (Kakamigahara, Japan), Yukihide Sato (Kakamigahara, Japan), Tomoshi Kameda (Tokyo) and Jinzen Ikebe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a technique that can further improve substrate specificity to an L-form during L-menthol and/or L-menthol ester production. A polypeptide that: has A120G, Q88A, Q88G, Q88D, Q88M, Q88L variants of a polypeptide comprising the amino acid sequence represented by sequence no. 1, an...