ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,155, issued on Feb. 3, was assigned to Chr. Hansen A/S (Hoersholm, Denmark).
"Process for the purification of lacto-N-neotetraose" was invented by Stefan Jennewein (Bad Honnef, Germany) and Markus Helfrich (Bad Hoenningen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a process for the purification of LNnT (lacto-N-neotetraose) from a fermentation broth, the process comprises subjecting a fermentation broth to a first step of membrane filtration, thereby providing a filtrated solution, such filtrated solution is subjecting to a second step of simulated moving bed chromatography, obtaining a purified solution thereof, then subjec...