ECSP930945A - Metodo para la preparacion derivados carboximetilados - Google Patents

Metodo para la preparacion derivados carboximetilados

Info

Publication number
ECSP930945A
ECSP930945A EC1993000945A ECSP930945A ECSP930945A EC SP930945 A ECSP930945 A EC SP930945A EC 1993000945 A EC1993000945 A EC 1993000945A EC SP930945 A ECSP930945 A EC SP930945A EC SP930945 A ECSP930945 A EC SP930945A
Authority
EC
Ecuador
Prior art keywords
derivatives
preparation
carboximethylated
chitosin
carboxymethyl
Prior art date
Application number
EC1993000945A
Other languages
English (en)
Inventor
Ernest R Hayes
Original Assignee
Nova Chen Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nova Chen Ltd filed Critical Nova Chen Ltd
Publication of ECSP930945A publication Critical patent/ECSP930945A/es

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B7/00—Preservation of fruit or vegetables; Chemical ripening of fruit or vegetables
    • A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-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
    • C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
    • C08B37/003—Chitin, 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Materials Engineering (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

Un método para la preparación de cualquier N,O-carboximetil quitosina caracterizado en que los derivados de quitosina resultantes tienen sustituídos de carboximetil en alguna de ambas de las bases de amino e hidróxil primario de las unidades de glucosamina de la estructura de quitosina.
EC1993000945A 1984-12-24 1993-06-17 Metodo para la preparacion derivados carboximetilados ECSP930945A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/685,559 US4619995A (en) 1984-12-24 1984-12-24 N,O-carboxymethyl chitosan and preparative method therefor

Publications (1)

Publication Number Publication Date
ECSP930945A true ECSP930945A (es) 1994-03-07

Family

ID=24752720

Family Applications (1)

Application Number Title Priority Date Filing Date
EC1993000945A ECSP930945A (es) 1984-12-24 1993-06-17 Metodo para la preparacion derivados carboximetilados

Country Status (5)

Country Link
US (1) US4619995A (es)
EP (1) EP0265561B1 (es)
JP (1) JPS63110201A (es)
AU (1) AU591713B2 (es)
EC (1) ECSP930945A (es)

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Also Published As

Publication number Publication date
US4619995A (en) 1986-10-28
AU6366786A (en) 1988-04-14
EP0265561B1 (en) 1989-04-26
JPH036161B2 (es) 1991-01-29
AU591713B2 (en) 1989-12-14
JPS63110201A (ja) 1988-05-14
EP0265561A1 (en) 1988-05-04

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