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1. WO1985000109 - STABILIZED CHITIN

Publication Number WO/1985/000109
Publication Date 17.01.1985
International Application No. PCT/US1984/001011
International Filing Date 25.06.1984
IPC
A23K 1/16 2006.01
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
KFEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF
1Animal feeding-stuffs
16supplemented with accessory food factors; Salt blocks
C08B 37/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/-C08B35/110; Derivatives thereof
08Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
C12Q 1/34 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
1Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
34involving hydrolase
CPC
A23K 20/163
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
KFODDER
20Accessory food factors for animal feeding-stuffs
10Organic substances
163Sugars; Polysaccharides
C08B 37/003
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
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
00272-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
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
C12Q 1/34
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS
1Measuring or testing processes involving enzymes, nucleic acids or microorganisms
34involving hydrolase
G01N 2333/924
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2333Assays involving biological materials from specific organisms or of a specific nature
90Enzymes; Proenzymes
914Hydrolases (3)
924acting on glycosyl compounds (3.2)
G01N 2400/28
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2400Assays, e.g. immunoassays or enzyme assays, involving carbohydrates
10Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
12Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar
24beta-D-Glucans, i.e. having beta 1,n (n=3,4,6) linkages between saccharide units, e.g. xanthan
28Chitin, chitosan
Applicants
  • BADE, Maria, L. [US]/[US]
Inventors
  • BADE, Maria, L.
Agents
  • LAMPERT, James, B.
Priority Data
508,47627.06.1983US
622,12819.06.1984US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STABILIZED CHITIN
(FR) CHITINE STABILISEE
Abstract
(EN)
A stabilized, sparsely esterified chitin polymer which has been dissociated and purified from a naturally occurring calcified chitin/protein matrix, and which substantially retains the structural features of the chitin matrix in that it comprises elongated fibers which are rapidly and quantitatively recognized by enzymes specific for naturally occuring chitin. The chitin polymer is made by a method in which the naturally occuring matrix is first decalcified and deproteinized, and then the chitin is dispersed and stabilized in a cold dilute ester-forming acid before being recovered. The polymer is useful in various processes involving reactions with enzymes specific for naturally occurring chitin, and as a feedstock for producing products resulting from action of such enzymes.
(FR)
Polymère de chitine stabilisé et peu estérifié, qui a été dissocié et purifié à partir d'une matrice calcifiée de chitine et de protéine se présentant naturellement et qui garde essentiellement les caractéristiques structurelles de la matrice de chitine par le fait qu'il comporte des fibres allongées reconnues rapidement et quantativement par les enzymes spécifiques à la chitine se présentant naturellement. Le polymère de chitine est fabriqué par un procédé où la matrice se présentant naturellement est tout d'abord décalcifiée et déprotéinisée, puis la chitine dispersée est stabilisée dans un acide d'estérification par dilution à froid avant la récupération. Ce polymère est utile dans divers procédés impliquant des réactions avec les enzymes spécifiques à la chitine se présentant naturellement et sert de matière pour produire des produits résultant de l'action de telles enzymes.
Also published as
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