Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1998051711) CHITIN BEADS, CHITOSAN BEADS, PROCESS FOR PREPARING THESE BEADS, CARRIER COMPRISING SAID BEADS, AND PROCESS FOR PREPARING MICROSPORIDIAN SPORE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/051711 International Application No.: PCT/JP1997/003741
Publication Date: 19.11.1998 International Filing Date: 16.10.1997
IPC:
A01N 25/10 (2006.01) ,A01N 25/26 (2006.01) ,A23K 1/00 (2006.01) ,A23K 1/16 (2006.01) ,A23L 1/056 (2006.01) ,A23L 1/22 (2006.01) ,A61K 9/16 (2006.01) ,C09B 67/02 (2006.01)
A HUMAN NECESSITIES
01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
N
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25
Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
08
containing solids as carriers or diluents
10
Macromolecular compounds
A HUMAN NECESSITIES
01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
N
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25
Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
26
in coated particulate form
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
K
FEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF
1
Animal feeding-stuffs
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
K
FEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF
1
Animal feeding-stuffs
16
supplemented with accessory food factors; Salt blocks
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
L
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
1
Foods or foodstuffs; Their preparation or treatment
05
containing gelling or thickening agents
056
of animal origin, e.g. chitin
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
L
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
1
Foods or foodstuffs; Their preparation or treatment
22
Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
14
Particulate form, e.g. powders
16
Agglomerates; Granulates; Microbeadlets
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
67
Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
02
Dyestuff preparations characterised by special physical forms, e.g. tablets, films
Applicants:
TSUKADA, Masuhiro [JP/JP]; JP (UsOnly)
SHIRATA, Akira [JP/JP]; JP (UsOnly)
HAYASAKA, Shoji [JP/JP]; JP (UsOnly)
JAPAN as represented by DIRECTOR GENERAL OF NATIONAL INSTITUTE OF SERICULTURAL AND ENTOMOLOGICAL SCIENCE MINISTRY OF AGRICULTURE, FORESTRY AND FISHERRIES [JP/JP]; 1-2, Ohwashi, Tsukuba-shi Ibaraki 305, JP (AllExceptUS)
Inventors:
TSUKADA, Masuhiro; JP
SHIRATA, Akira; JP
HAYASAKA, Shoji; JP
Agent:
KITAMURA, Kinichi ; 703 New Shinbashi Building 16-1, Shinbashi 2-chome Minato-ku Tokyo 105, JP
Priority Data:
9/12425514.05.1997JP
Title (EN) CHITIN BEADS, CHITOSAN BEADS, PROCESS FOR PREPARING THESE BEADS, CARRIER COMPRISING SAID BEADS, AND PROCESS FOR PREPARING MICROSPORIDIAN SPORE
(FR) PERLES DE CHITINE, PERLES DE CHITOSANE, LEUR PROCEDE DE PRODUCTION, VEHICULE COMPRENANT LESDITES PERLES, ET PROCEDE DE PREPARATION D'UNE SPORE DE MICROSPORIDIE
Abstract:
(EN) Chitin beads having a uniform fine particle diameter and comprising a microsporidian spore whose main cell wall material is chitin; chitosan beads having a uniform fine particle diameter and prepared by N-deacetylating the chitin; a process for preparing the beads; a carrier comprising the beads; and a process for preparing a microsporidian spore. A microsporidian spore is propagated in an insect or a culture cell to prepare chitin beads having a uniform fine particle diameter and containing chitin as the main cell wall material. The chitin as the cell wall material is N-deacetylated to prepare chitosan beads. When the insect is the larva of a domesticated silkworm, the microsporidian spore is orally or percutaneously inoculated in a concentration of 5 x 102 to 5 x 108/ml into the larva of a second-instar exuviated domesticated silkworm to effect propagation. The propagated microsporidian spore is taken out of the grown fifth-instar larva body and purified to prepare chitin beads having a uniform fine particle diameter and chitosan beads are prepared therefrom in the same manner as that described above. These beads are used as a carrier for immobilizing or encapsulating various materials such as antibiotics and microorganisms.
(FR) L'invention concerne: des perles de chitine présentant un diamètre de fine particule régulier et comprenant une spore de microsporidie dont le matériau principal de la paroi cellulaire est la chitine; des perles de chitosane présentant un diamètre de fine particule régulier et préparées par N-désacétylation de la chitine; un procédé de production desdites perles; un véhicule comprenant lesdites perles; et un procédé de préparation d'une spore de microsporidie. On fait en sorte qu'une spore de microsporidie se propage dans un insecte ou dans une cellule de culture pour produire des perles de chitine présentant un diamètre de particule fine régulier et contenant la chitine comme matériau principal de la paroi cellulaire. La chitine en tant que matériau de la paroi cellulaire est N-désacétylée pour produire des perles de chitosane. Lorsque l'insecte susmentionné est la larve d'un ver à soie domestique, la spire de microsporidie est inoculée par voie orale ou transcutanée, à une concentration de 5 x 102 à 5 x 108/ml, dans la larve d'un ver à soie domestique de deuxième âge ayant mué, pour qu'elle s'y propage. Lorsque la spore de microsporidie s'est propagée, elle est retirée du corps de la larve de cinquième âge qui s'est développé et purifiée pour produire des perles de chitine présentant un diamètre de fine particule régulier, et des perles de chitosane sont obtenues à partir de celles-ci de la façon décrite ci-dessus. Ces perles peuvent être utilisées comme véhicules pour immobiliser ou encapsuler divers matériaux tels que des antibiotiques et des micro-organismes.
Designated States: CA, CN, JP, KR, US
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)