4 results about "Muconic acid" patented technology

The present invention makes it possible to improve the production yield of 3-hydroxyhexanedioic acid, (E)-hex-2-enedioic acid, and / or hexanedioic acid while reducing the by-production of acetic acid by enhancing the function of isocitrate lyase in a microorganism capable of producing 3-hydroxyhexanedioic acid, (E)-hex-2-enedioic acid, and / or hexanedioic acid. The present invention further makes it possible to improve the production yield of 3-hydroxyhexanedioic acid by increasing the expression level of YnfM or a homolog thereof in a microorganism capable of producing 3-hydroxyhexanedioic acid.

This invention discloses a method for ring-opening the aromatic ring of lignin, belonging to the field of biomass resource utilization technology. The method includes: adding lignin to a solvent, then adding an enzyme catalyst and an oxidant, reacting, and centrifuging to obtain the ring-opened product. This invention utilizes a system of oxidant and organic carboxylic acid ester solvents, where lipase catalyzes the in-situ generation of peroxycarboxylic acid, further catalyzing the ring-opening of phenolic lignin. The enzyme-catalyzed and controllable reaction process achieves a catalytic efficiency of up to 99%, with high yields of mucoconic acid products and few byproducts, providing a new technical route for the effective utilization of lignin resources to produce high-value-added chemicals.

The objective is to improve the productivity of 3-hydroxyadipic acid, α-hydromuconic acid, and / or adipic acid while reducing the by-product of acetic acid in a method for producing 3-hydroxyadipic acid, α-hydromuconic acid, and / or adipic acid using microorganisms. [Solution] A genetically modified microorganism capable of producing 3-hydroxyadipic acid, α-hydromuconic acid, and / or adipic acid, in which the function of isocitrate lyase is enhanced.