BR9707771A - Process to reduce the viscosity of a polysaccharide - Google Patents
Process to reduce the viscosity of a polysaccharideInfo
- Publication number
- BR9707771A BR9707771A BR9707771-2A BR9707771A BR9707771A BR 9707771 A BR9707771 A BR 9707771A BR 9707771 A BR9707771 A BR 9707771A BR 9707771 A BR9707771 A BR 9707771A
- Authority
- BR
- Brazil
- Prior art keywords
- polysaccharide
- viscosity
- reduce
- hydrogen peroxide
- acylated
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Cosmetics (AREA)
- Paper (AREA)
- Medicinal Preparation (AREA)
Abstract
"PROCESSO PARA REDUZIR A VISCOSIDADE DE UM POLISSACARìDEO". Descreve-se um processo para reduzir a viscosidade de polissacarídeos tais como amido, mediante tratamento com peróxido de hidrogênio na presença de um polissacarídeo acilado como um ativador. O polissacarídeo acilado é usado, em particular, em uma quantidade que é equivalente a pelo menos um grupo acila por 100 unidades de monossacarídeos. O peróxido de hidrogênio é preferivelmente usado de 2 a 20% em peso, em relação ao total de polissacarídeo e polissacarídeo acilado."PROCESS TO REDUCE THE VISCOSITY OF A POLYSACARID". A process for reducing the viscosity of polysaccharides such as starch is described by treatment with hydrogen peroxide in the presence of an acylated polysaccharide as an activator. The acylated polysaccharide is used, in particular, in an amount that is equivalent to at least one acyl group per 100 units of monosaccharides. Hydrogen peroxide is preferably used from 2 to 20% by weight, based on the total polysaccharide and acylated polysaccharide.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1002494A NL1002494C2 (en) | 1996-02-29 | 1996-02-29 | Method for oxidizing starch. |
PCT/NL1997/000098 WO1997031951A1 (en) | 1996-02-29 | 1997-02-28 | Process for oxidising starch |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9707771A true BR9707771A (en) | 2000-01-04 |
Family
ID=19762420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9707771-2A BR9707771A (en) | 1996-02-29 | 1997-02-28 | Process to reduce the viscosity of a polysaccharide |
Country Status (20)
Country | Link |
---|---|
EP (1) | EP0883630A1 (en) |
JP (1) | JP2000506197A (en) |
KR (1) | KR19990087307A (en) |
CN (1) | CN1212708A (en) |
AU (1) | AU723782B2 (en) |
BG (1) | BG102731A (en) |
BR (1) | BR9707771A (en) |
CA (1) | CA2247109A1 (en) |
CZ (1) | CZ266998A3 (en) |
EA (1) | EA000896B1 (en) |
HU (1) | HUP9901784A3 (en) |
IL (1) | IL125942A0 (en) |
NL (1) | NL1002494C2 (en) |
NZ (1) | NZ331585A (en) |
PL (1) | PL328613A1 (en) |
SK (1) | SK119098A3 (en) |
TR (1) | TR199801653T2 (en) |
WO (1) | WO1997031951A1 (en) |
YU (1) | YU37298A (en) |
ZA (1) | ZA971785B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1007085C2 (en) * | 1997-09-19 | 1999-03-22 | Inst Voor Agrotech Onderzoek | Carbohydrate oxidation with hydrogen peroxide |
NL1010660C2 (en) * | 1998-11-26 | 2000-05-30 | Inst Voor Agrotech Onderzoek | Method for oxidizing starch. |
DE19953589B4 (en) | 1999-11-08 | 2005-05-25 | Sca Hygiene Products Gmbh | Polysaccharide with functional groups, process for its preparation and products made therefrom |
KR100371866B1 (en) * | 2000-06-24 | 2003-02-11 | 주식회사 삼양제넥스 | Modified starch useful for paper surface sizing and a method thereof |
DE10241040B4 (en) * | 2001-09-04 | 2004-11-18 | Heppe Gmbh Biotechnologische Systeme Und Materialien | Modified polysaccharide materials and process for their manufacture |
CN101177459B (en) * | 2007-11-30 | 2010-05-19 | 四川大学 | High carbonyl content oxidation starch and method for making same |
US8641863B2 (en) * | 2011-09-30 | 2014-02-04 | Weyerhaeuser Nr Company | Catalytic carboxylation of cellulose fibers in a continuous process with multiple additions of catalyst, secondary oxidant and base to a moving slurry of cellulose fibers |
KR101409213B1 (en) * | 2012-12-20 | 2014-06-19 | 대상 주식회사 | Method for decreasing sulfurous acid included in by-products of corn wet-milling |
EP3205673B1 (en) * | 2016-02-12 | 2018-05-23 | Coöperatie Avebe U.A. | Oxidation of starch |
CN108883400B (en) | 2016-02-19 | 2021-09-17 | 洲际大品牌有限责任公司 | Method for forming a multi-value stream from a biomass source |
CN114751994B (en) * | 2022-03-18 | 2023-02-17 | 西南林业大学 | Acetylated oxidized starch and preparation method thereof, modified urea-formaldehyde resin adhesive and preparation method and application thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE443524A (en) * | 1940-07-01 | |||
BE549817A (en) * | 1955-07-27 | |||
DE69030443T2 (en) * | 1990-12-28 | 1997-11-13 | Ausimont Spa | Process for increasing the bleaching efficiency of inorganic persalts |
US5362868A (en) * | 1993-06-18 | 1994-11-08 | Degussa Aktiengesellshaft | Thinning of granular starch |
-
1996
- 1996-02-29 NL NL1002494A patent/NL1002494C2/en not_active IP Right Cessation
-
1997
- 1997-02-28 IL IL12594297A patent/IL125942A0/en unknown
- 1997-02-28 KR KR1019980706715A patent/KR19990087307A/en not_active Application Discontinuation
- 1997-02-28 TR TR1998/01653T patent/TR199801653T2/en unknown
- 1997-02-28 BR BR9707771-2A patent/BR9707771A/en not_active Application Discontinuation
- 1997-02-28 AU AU22354/97A patent/AU723782B2/en not_active Ceased
- 1997-02-28 NZ NZ331585A patent/NZ331585A/en unknown
- 1997-02-28 SK SK1190-98A patent/SK119098A3/en unknown
- 1997-02-28 JP JP9530836A patent/JP2000506197A/en active Pending
- 1997-02-28 CN CN97192664A patent/CN1212708A/en active Pending
- 1997-02-28 EP EP97905500A patent/EP0883630A1/en not_active Ceased
- 1997-02-28 WO PCT/NL1997/000098 patent/WO1997031951A1/en not_active Application Discontinuation
- 1997-02-28 PL PL97328613A patent/PL328613A1/en unknown
- 1997-02-28 EA EA199800778A patent/EA000896B1/en not_active IP Right Cessation
- 1997-02-28 YU YU37298A patent/YU37298A/en unknown
- 1997-02-28 HU HU9901784A patent/HUP9901784A3/en unknown
- 1997-02-28 CA CA002247109A patent/CA2247109A1/en not_active Abandoned
- 1997-02-28 CZ CZ982669A patent/CZ266998A3/en unknown
- 1997-02-28 ZA ZA9701785A patent/ZA971785B/en unknown
-
1998
- 1998-08-28 BG BG102731A patent/BG102731A/en unknown
Also Published As
Publication number | Publication date |
---|---|
YU37298A (en) | 1999-09-27 |
NL1002494C2 (en) | 1997-09-01 |
CZ266998A3 (en) | 1999-03-17 |
HUP9901784A3 (en) | 1999-11-29 |
EP0883630A1 (en) | 1998-12-16 |
EA000896B1 (en) | 2000-06-26 |
HUP9901784A2 (en) | 1999-10-28 |
ZA971785B (en) | 1997-09-29 |
WO1997031951A1 (en) | 1997-09-04 |
SK119098A3 (en) | 1999-06-11 |
AU723782B2 (en) | 2000-09-07 |
AU2235497A (en) | 1997-09-16 |
NZ331585A (en) | 2000-03-27 |
KR19990087307A (en) | 1999-12-27 |
CA2247109A1 (en) | 1997-09-04 |
IL125942A0 (en) | 1999-04-11 |
TR199801653T2 (en) | 1998-12-21 |
EA199800778A1 (en) | 1999-02-25 |
BG102731A (en) | 1999-07-30 |
CN1212708A (en) | 1999-03-31 |
PL328613A1 (en) | 1999-02-01 |
JP2000506197A (en) | 2000-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EG | Technical examination (opinion): publication of technical examination (opinion) | ||
B09B | Patent application refused [chapter 9.2 patent gazette] |