摘要:
A novel compound is disclosed, said compound comprising hyaluronic acid, optionally cross-linked, or an oligomer, optionally cross-linked, dimer or monomer thereof, which is salified or at least partially salified with carnosine, wherein the carnosine is in the form of an L- or D- enantlomer or a racemate; a process for producing this compound, its cosmetic and therapeutic use as well as pharmaceutical and cosmetic compositions containing the same are also disclosed.
摘要:
The present invention relates to a method for the production of hyaluronic acid (HA) in Bacillus subtilis and Escherichia coli through plasmid vectors wherein the gene is under the control of strong promoter P grac , and a system for the selection of stable bacterial strains for the production of high levels of hyaluronic acid.
摘要:
Disclosed is a method for producing a metal hyaluronate comprising dispersing a hyaluronic acid and/or salt thereof in a water-containing medium comprising a metallic compound comprising at least one selected from a metal of a group 2 element, a metal of a group 12 element, a metal of a group 13 element, and a metal of a transition element.
摘要:
The present invention relates to novel anionic polysaccharide derivatives partially functionalised by at least two vicinal hydrophobic groups, said identical or different hydrophobic groups being supported by an at least trivalent radical or spacer. The invention also relates to methods for synthesising same. The invention further relates to the use of functionalised polysaccharides according to the invention for preparing pharmaceutical compositions including one of the polysaccharides according to the invention and at least one active principle.