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1. (WO2009062561) PROCESS FOR THE PREPARATION OF PURIFIED β-(1,3)-D-GLUCANS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/062561    International Application No.:    PCT/EP2008/007236
Publication Date: 22.05.2009 International Filing Date: 04.09.2008
IPC:
C08B 37/00 (2006.01)
Applicants: CARGILL, INCORPORATED [US/US]; 15407 McGinty Road West, Wayzata, MN 55391 (US) (For All Designated States Except US).
MAZOYER, Jacques [FR/FR]; (FR) (For US Only).
LHONNEUR, Jean Pierre [FR/FR]; (FR) (For US Only)
Inventors: MAZOYER, Jacques; (FR).
LHONNEUR, Jean Pierre; (FR)
Agent: VANDERMOLEN, Mathieu; Cargill Europe BVBA, Bedrijvenlaan 9, B-2800 Mechelen (BE)
Priority Data:
07 022 025.6 13.11.2007 EP
Title (EN) PROCESS FOR THE PREPARATION OF PURIFIED β-(1,3)-D-GLUCANS
(FR) PROCÉDÉ DE PRÉPARATION DE &Bgr;-(1,3)-D-GLUCANES PURIFIÉS
Abstract: front page image
(EN)There is provided a process for the preparation of purified β-(1,3)-D-glucans, comprising the steps of providing an aqueous β-(1,3)-D-glucan initial solution having a pH of above 11.0, filtering the aqueous β-(1,3)-D-glucan initial solution to obtain a β- (1,3)-D-glucan containing filtrate, adjusting the pH of the β-(1,3)-D-glucan containing filtrate with an acid to a pH of below 5.0 to obtain an acidic β-(1,3)-D-glucan solution, and heating the acidic β-(1,3)-D-glucan solution to a temperature in the range of 60 to 160 °C.
(FR)La présente invention concerne un procédé de préparation de β-(1,3)-D-glucanes purifiés, comprenant les étapes consistant à fournir une solution aqueuse initiale de β-(1,3)-D-glucanes ayant un pH supérieur à 11,0, à filtrer la solution aqueuse initiale de β-(1,3)-D-glucanes afin d'obtenir un filtrat contenant les β-(1,3)-D-glucanes, à ajuster le pH du filtrat contenant les β-(1,3)-D-glucanes avec un acide à un pH inférieur à 5,0 afin d'obtenir une solution acide de β-(1,3)-D-glucanes, et à chauffer la solution acide de β-(1,3)-D-glucanes à une température dans la plage allant de 60 à 160°C.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)