Enzyme systems for fragmentation of the rhamnogalacturonan sites main chains in plant tissue protopectin complex

Special features of the protopectin complex structure plant tissue suggest necessity performing point destruction certain glycoside bonds in rhamnogalacturonan polymer chains for industrial production pectin. These include homogalacturonan sites and branching zones. As fragments carry main functional load, between residues rhamnose galacturonic acid are targeted bonds. For their directional destruction, it is most expedient to use enzymes lyase hydrolase action. The aim this review systemize notions molecular specific action that catalyze process enzymatic chain. paper examines systematics by mechanism structure. It shown classification data intercross, as a result, each family can one or several enzyme groups. shows structural difference consists obligatory presence Ca 2+ cations composition enzymes. take part stabilization conformation molecule catalytic per se blocking residue acid. absent Molecular determine sensitivity activity system. Exceeding concentration lead antagonistic effect. There no unambiguous idea regarding demonstrates studying approaches assessment expediency preliminary partial removal from substrate.