C08BPOLYSACCHARIDESDERIVATIVES THEREOF polysaccharides containing less than six saccharide radicals attached to each other by glycosidic linkages C07H; fermentation or enzyme-using processes C12P19/00; sugar industry C13; production of cellulose D21The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: C08B37/02 covered by C08B37/0021C08B37/04 covered by C08B37/0084C08B37/06 covered by C08B37/0045C08B37/08 covered by C08B37/003 (chitin), C08B37/0072 (hyaluronic acid) and C08B37/0069 (chondroitin sulfate) C08B37/10 covered by C08B37/0075C08B37/16 covered by C08B37/0012In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. C08B1/00Preparation C08B1/00Preparatory treatment of cellulose for making derivatives thereof , e.g. pre-treatment, pre-soaking, activation C08B1/003Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids solutions used in the manufacture of monocomponent artificial filaments or cellulose or derivatives thereof D01F2/02 C08B1/006Preparation of cuprammonium cellulose solutions C08B1/02Rendering cellulose suitable for esterification esterification per se, C08B3/00, C08B5/00, C08B7/00 or C08B9/00 C08B1/04for the preparation of cellulose nitrate C08B1/06Rendering cellulose suitable for etherification etherification per se C08B11/00 C08B1/08Alkali cellulose C08B1/10Apparatus for the preparation of alkali cellulose C08B1/12Steeping devices C08B1/14Ripening devices C08B3/00Preparation of cellulose esters of organic acids rendering cellulose suitable for esterification C08B1/02 C08B3/02Catalysts used for the esterification C08B3/04Cellulose formate C08B3/06Cellulose acetate , e.g. mono-acetate, di-acetate or tri-acetate C08B3/08of monobasic organic acids with three or more carbon atoms, e.g. propionate or butyrate C08B3/10with five or more carbon-atoms, e.g. valerate C08B3/12of polybasic organic acids C08B3/14in which the organic acid residue contains substituents, e.g. NH₂, Cl C08B3/16Preparation of mixed organic cellulose esters , e.g. cellulose aceto-formate or cellulose aceto-propionate C08B3/18Aceto-butyrates C08B3/20Esterification with maintenance of the fibrous structure of the cellulose surface esterification of textiles D06M13/00 C08B3/22Post-esterification treatments, including purification C08B3/24Hydrolysis or ripening C08B3/26Isolation of the cellulose ester C08B3/28by precipitation C08B3/30Stabilising by addition of stabilisers C08K C08B5/00Preparation of cellulose esters of inorganic acids , e.g. phosphates rendering cellulose suitable for esterification C08B1/02 C08B5/02Cellulose nitrate , i.e. nitrocellulose rendering cellulose suitable for the preparation of cellulose nitrate C08B1/04 C08B5/04Post-esterification treatments , e.g. densification of powders, including purification C08B5/06Isolation of the cellulose nitrate C08B5/08Stabilisation by addition of stabilisers C08K; Post-treatment, e.g. phlegmatisation C08B5/10Reducing the viscosity C08B5/12Replacing the water by organic liquids C08B5/14Cellulose sulfate C08B7/00Preparation of cellulose esters of both organic and inorganic acids rendering cellulose suitable for esterification C08B1/02 C08B9/00Cellulose xanthateViscose formation of films C08J5/18; formation of fibres D01F; rendering cellulose suitable for esterification C08B1/02 C08B9/02SulfidisersDissolvers C08B9/04Continuous processes C08B9/06Single-stage processes C08B11/00Preparation of cellulose ethers rendering cellulose suitable for etherification C08B1/06 C08B11/02Alkyl or cycloalkyl ethers C08B11/04with substituted hydrocarbon radicals C08B11/06with halogen-substituted hydrocarbon radials C08B11/08with hydroxylated hydrocarbon radicalsEsters, ethers, or acetals thereof C08B11/10substituted with acid radicals C08B11/12substituted with carboxylic radicals , e.g. carboxymethylcellulose [CMC] C08B11/14with nitrogen-containing groups C08B11/145with basic nitrogen, e.g. aminoalkyl ethers C08B11/15with carbamoyl groups , i.e. -CO-NH₂ C08B11/155with cyano groups, e.g. cyanoalkyl ethers C08B11/16Aryl or aralkyl ethers C08B11/18with substituted hydrocarbon radicals C08B11/187with olefinic unsaturated groups C08B11/193Mixed ethers, i.e. ethers with two or more different etherifying groups C08B11/20Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification C08B11/22Isolation C08B13/00Preparation of cellulose ether-esters C08B13/02Cellulose ether xanthates C08B15/00Preparation of other cellulose derivatives or modified cellulose , e.g. complexes C08B15/005Crosslinking of cellulose derivatives C08B15/02OxycelluloseHydrocelluloseCellulosehydrate, e.g. microcrystalline cellulose C08B15/04Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide C08B15/05Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur esters or phosphorous acids C08B5/00 C08B15/06containing nitrogen , e.g. carbamates C08B15/08Fractionation of cellulose, e.g. separation of cellulose crystallites C08B15/10Crosslinking of cellulose C08B16/00Regeneration of cellulose C08B17/00Apparatus for esterification or etherification of cellulose C08B17/02for making organic esters of cellulose C08B17/04for making cellulose nitrate C08B17/06for making cellulose ethers C08B30/00Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin C08B30/02Preparatory treatment, e.g. crushing of raw materials or steeping process machines for preliminary washing A23N C08B30/04Extraction or purification C08B30/042from cereals or grains C08B30/044from corn or maize C08B30/046from wheat C08B30/048from potatoes C08B30/06DryingForming C08B30/08Concentration of starch suspensions C08B30/10Working-up residues from the starch extraction , e.g. potato peel or steeping water, including pressing water from the starch-extracted material C08B30/12Degraded, destructured or non-chemically modified starch , e.g. mechanically, enzymatically or by irradiation; Bleaching of starch preparation of chemical derivatives of starch C08B31/00 C08B30/14Cold water dispersible or pregelatinised starch C08B30/16Apparatus therefor C08B30/18Dextrin , e.g. yellow canari, white dextrin, amylodextrin or maltodextrin; Methods of depolymerisation, e.g. by irradiation or mechanically C08B30/20Amylose or amylopectin chemical derivatives thereof C08B33/00, C08B35/00 C08B31/00Preparation of derivatives of starch derivatives of amylose C08B33/00; derivatives of amylopectin C08B35/00 C08B31/003Crosslinking of starch C08B31/006Crosslinking of derivatives of starch C08B31/02Esters C08B31/04of organic acids , e.g. alkenyl-succinated starch C08B31/06of inorganic acids C08B31/063Starch sulfates C08B31/066Starch phosphates, e.g. phosphorylated starch C08B31/08Ethers C08B31/10Alkyl or cycloalkyl ethers C08B31/12having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch C08B31/125having a substituent containing at least one nitrogen atom, e.g. cationic starch C08B31/14Aryl or aralkyl ethers C08B31/16Ether-esters C08B31/18Oxidised starch C08B31/185Derivatives of oxidised starch, e.g. crosslinked oxidised starch C08B33/00Preparation of derivatives of amylose C08B33/02Esters C08B33/04Ethers C08B33/06Ether-esters C08B33/08Oxidised amylose C08B35/00Preparation of derivatives of amylopectin C08B35/02Esters C08B35/04Ethers C08B35/06Ether-esters C08B35/08Oxidised amylopectin C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00Derivatives thereof cellulose D21; microbiological processes C12P C08B37/0003General processes for their isolation or fractionation, e.g. purification or extraction from biomass C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid C08B37/0009alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof C08B37/0012Cyclodextrin [CD], e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof C08B37/0015Inclusion compounds, i.e. host-guest compounds, e.g. polyrotaxanes C08B37/0018Pullulan, i.e. (alpha-1,4)(alpha-1,6)-D-glucan; Derivatives thereof C08B37/0021Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran C08B37/0024beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof C08B37/00272-Acetamido-2-deoxy-beta-glucans; Derivatives thereof C08B37/003Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof C08B37/0033Xanthan, i.e. D-glucose, D-mannose and D-glucuronic acid units, saubstituted with acetate and pyruvate, with a main chain of (beta-1,4)-D-glucose units; Derivatives thereof C08B37/0036Galactans; Derivatives thereof C08B37/0039Agar; Agarose, i.e. D-galactose, 3,6-anhydro-D-galactose, methylated, sulfated, e.g. from the red algae Gelidium and Gracilaria; Agaropectin; Derivatives thereof, e.g. Sepharose, i.e. crosslinked agarose C08B37/0042Carragenan or carragen, i.e. D-galactose and 3,6-anhydro-D-galactose, both partially sulfated, e.g. from red algae Chondrus crispus or Gigantia stellata; kappa-Carragenan; iota-Carragenan; lambda-Carragenan; Derivatives thereof C08B37/0045alpha-D-Galacturonans, e.g. methyl ester of (alpha-1,4)-linked D-galacturonic acid units, i.e. pectin, or hydrolysis product of methyl ester of alpha-1,4-linked D-galacturonic acid units, i.e. pectinic acid; Derivatives thereof C08B37/0048Processes of extraction from organic materials C08B37/0051beta-D-Fructofuranans, e.g. beta-2,6-D-fructofuranan, i.e. levan; Derivatives thereof C08B37/0054Inulin, i.e. beta-2,1-D-fructofuranan; Derivatives thereof C08B37/0057beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof C08B37/006Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof C08B37/0063Glycosaminoglycans or mucopolysaccharides, e.g. keratan sulfate; Derivatives thereof, e.g. fucoidan C08B37/0066Isolation or extraction of proteoglycans from organs C08B37/0069Chondroitin-4-sulfate, i.e. chondroitin sulfate A; Dermatan sulfate, i.e. chondroitin sulfate B or beta-heparin; Chondroitin-6-sulfate, i.e. chondroitin sulfate C; Derivatives thereof C08B37/0072Hyaluronic acid, i.e. HA or hyaluronan; Derivatives thereof, e.g. crosslinked hyaluronic acid (hylan) or hyaluronates C08B37/0075Heparin; Heparan sulfate; Derivatives thereof, e.g. heparosan; Purification or extraction methods thereof C08B37/0078Degradation products C08B37/0081Reaction with amino acids, peptides, or proteins C08B37/0084Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates C08B37/0087Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof C08B37/009Konjac gum or konjac mannan, i.e. beta-D-glucose and beta-D-mannose units linked by 1,4 bonds, e.g. from Amorphophallus species; Derivatives thereof C08B37/0093Locust bean gum, i.e. carob bean gum, with (beta-1,4)-D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from the seeds of carob tree or Ceratonia siliqua; Derivatives thereof C08B37/0096Guar, guar gum, guar flour, guaran, i.e. (beta-1,4) linked D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from Cyamopsis Tetragonolobus; Derivatives thereof C08B37/12Agar-agarDerivatives thereof not used C08B37/125Other polysaccharides of algae such as carragenan (not used) C08B37/14HemicelluloseDerivatives thereof not used C08B37/143composed by pentose units, e.g. xylose, xylan, pentosans, arabinose (not used) C08B37/146composed by gluco and/or galactomannans, for example guar gum, locust bean gum (not used) C08B37/18Reserve carbohydrates, e.g. glycogen, inulin, laminarinDerivatives thereof not used