АНДРАДЕ ДЕ ФРЕЙТАШ Мария Филомена (PT),АЙМЕ РОКА Кристоф Франсуа (PT),ДА СИЛЬВА КРУШ Фернанду Мигел (PT),Д'АШЕНСАО КАРВАЛЬЮ ФЕРНАНДЕШ ДЕ МИРАНДА РЕЙШ Мария (PT),ДА СИЛЬВА ФАРИНЬЯ Инеш (PT),ФЕРРЕЙРА ША,ДАШЕНСАО КАРВАЛЬЮ ФЕРНАНДЕШ ДЕ МИРАНДА РЕЙШ Мария (PT),ФЕРРЕЙРА ШАГ
申请号：
RU2014144295
公开号：
RU2014144295A
申请日:
2013.03.15
申请国别(地区):
RU
年份:
2016
代理人:
摘要：
1. A biocomposite powder containing 20-95% (w / w) chitin-glucan complex (CGC) and up to 50% polysaccharides containing mannose, extracted from Pichia pastoris yeast biomass, where the particle size of the biocomposite powder is in the range of 5 up to 1500 microns, and where the apparent bulk density of the biocomposite powder is from 0.05 to 1.0 g / cm. 2. A biocomposite powder according to claim 1, containing 25% (w / w) polysaccharides containing mannose. 3. The biocomposite powder according to claim 1, wherein the particle size of the composite powder is in the range from 30 to 400 microns. The biocomposite powder according to claim 1, wherein the apparent bulk density of the biocomposite powder is from 0.5 to 1.0 g / cm. The biocomposite powder according to claim 1, wherein the particle size distribution of the biocomposite powder is such that 90% of the particles are smaller than 355 μm, 50% are smaller than 250 μm, and less than 10% are smaller than 90 μm. The biocomposite powder according to claim 1, wherein the ratio of chitin to glucan in CGC is up to 15-90 (mol.%). The biocomposite powder according to claim 1, wherein the ratio of chitin to glucan in the CGC is more than 15-85 (mol.%). The biocomposite powder according to claim 1, wherein the ratio of chitin to glucan in the CGC is more than 50-50 (mol.%). A method for producing a biocomposite powder containing polysaccharides extracted from biomass of Pichia pastoris yeast according to any one of claims. 1-8, characterized by the following sequential steps: a) bringing the biomass of P. pastoris into contact with an alkaline aqueous solution in a concentration of from 0.5 to 5.0 M, where the biomass is in suspension, preferably in a concentration of from 10 to 15% (mass ./ob.))b) mixing the alkaline suspension of biomass at a temperature of approximately 60-90 ° C for a period of 1-5 hours to obtain a reaction mixture； c) cooling the reaction mixture to a temperature of 30 to 45 ° C and after cooling th
