Process for production of chlorinated sucrose based on hydrophobic affinity chromatography
申请人:Ratnam Rakesh
公开号:US20100222570A1
公开(公告)日:2010-09-02
This invention relates to a process for selective capture, isolation and purification of chlorinated sucrose compounds, including chlorinated sucrose, their precursors and derivatives, including trichlorogalactosucrose (TGS), directly from chlorinated reaction mixture by column chromatography on adsorbents and under conditions which result in specific and selective affinity towards one or more of chlorinated sucrose compound. The process also integrates de-esterification of chlorinated sucrose esters adsorbed on the adsorbent while they are being treated with desorbent. The process also provides a novel approach to concentration and crystallization of TGS. The chlorinated sucrose derivatives, including TGS, thus isolated are substantially free from most impurities, salts and organic solvents. The process has high recovery of more than 95% in terms of desired chlorinated sucrose derivatives including TGS.
A DDS compound comprising a carboxy(C
1-4
)alkyldextran polyalcohol modified with a saccharide compound and a residue of drug compound bound to the carboxy(C
1-4
)alkyldextran polyalcohol, and a method for measuring a DDS compound in which a polymer carrier and a residue of drug compound are bound to each other by means of a spacer comprising 2 to 8 amino acids linked by peptide bond(s), which comprises the steps of treating the DDS compound with a peptidase, and measuring the resulting hydrolysate.
A DDS compound comprising a carboxy(C1-4)alkyldextran polyalcohol modified with a saccharide compound and a residue of drug compound bound to the carboxy(C1-4)alkyldextran polyalcohol, and a method for measuring a DDS compound in which a polymer carrier and a residue of drug compound are bound to each other by means of a spacer comprising 2 to 8 amino acids linked by peptide bond(s), which comprises the steps of treating the DDS compound with a peptidase, and measuring the resulting hydrolysate.
A DDS compound comprising a carboxy(C1-4)alkyldextran polyalcohol modified with a saccharide compound and a residue of drug compound bound to the carboxy(C1-4)alkyldextran polyalcohol, and a method for measuring a DDS compound in which a polymer carrier and a residue of drug compound are bound to each other by means of a spacer comprising 2 to 8 amino acids linked by peptide bond(s), which comprises the steps of treating the DDS compound with a peptidase, and measuring the resulting hydrolysate.
Pressure-sensitive adhesive comprising a polymer component and a saccharide component and method for bonding a first substrate to a second substrate with same
申请人:TESA SE
公开号:US10711164B2
公开(公告)日:2020-07-14
Pressure-sensitive adhesive compound comprising a polymer component and a saccharide component, wherein the saccharide component is formed from one or more monosaccharides, disaccharides, oligosaccharides, or polysaccharides, and/or one or more modified saccharide derivatives, which can be derived from monosaccharides, disaccharides, oligosaccharides or polysaccharides by modifying one, several, or all OH groups contained in the respective saccharide.