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    • 1. 发明申请
    • A METHOD TO INCREASE THE MOLECULAR WEIGHT OF WOOD MANNANS AND XYLANS COMPRISING AROMATIC MOIETIES
    • 一种增加包含芳族动物的木材和木兰的分子量的方法
    • WO2012071004A1
    • 2012-05-31
    • PCT/SE2011/051405
    • 2011-11-23
    • ECOHELIX HBHENRIKSSON, GunnarARESKOGH, DimitriOINONEN, Petri
    • HENRIKSSON, GunnarARESKOGH, DimitriOINONEN, Petri
    • C08B37/14C08G81/00C12N9/02
    • C08B37/143C08B37/0003C08B37/0057C08B37/146C08H6/00C08H8/00C12P19/04C12Y110/03002C12Y111/01
    • A method to increase the molecular weight of wood mannans and xylans comprising aromatic moieties comprises the steps: a) obtaining mannan and/or xylan from wood, b) subjecting the mannan/ xylan to oxidizing conditions to convert at least a fraction of the aromatic groups into radicals and reacting said radicals with each other to obtain complexes of mannan/ xylan with increased molecular weight. The method is easy and cost efficient and enables to upgrade small wood mannans and xylans that are important in the pulp and paper industry into larger mannans and xylans and more defined structures which makes their isolation easier and application areas broader. Another advantage is that separation of mannans and xylans from mannans and xylans with bound aromatic groups is provided. The wood mannans and xylans with increased molecular weight can be used for the manufacture of barrier films in packages, for instance for oxygen, liquids and gas.
    • 增加包含芳族部分的木材甘露聚糖和木聚糖的分子量的方法包括以下步骤:a)从木材中获得甘露聚糖和/或木聚糖,b)使甘露聚糖/木聚糖经历氧化条件以将至少一部分芳族基团 进入自由基并使所述自由基彼此反应,以获得分子量增加的甘露聚糖/木聚糖的复合物。 该方法容易且成本有效,并且能够将在纸浆和造纸工业中重要的小木材甘露聚糖和木聚糖升级成更大的甘露聚糖和木聚糖和更确定的结构,使得它们的分离更容易并且应用领域更广泛。 另一个优点是提供了甘露聚糖和木聚糖与具有结合芳族基团的甘露聚糖和木聚糖的分离。 具有增加的分子量的木材甘露聚糖和木聚糖可用于制造包装中的阻隔膜,例如用于氧气,液体和气体。
    • 2. 发明申请
    • METHOD FOR THE MANUFACTURING OF MICROFIBRILLATED CELLULOSE
    • 微晶纤维素的制备方法
    • WO2007091942A1
    • 2007-08-16
    • PCT/SE2007/000082
    • 2007-01-31
    • STFI-PACKFORSK ABLINDSTRÖM, TomANKERFORS, MikaelHENRIKSSON, Gunnar
    • LINDSTRÖM, TomANKERFORS, MikaelHENRIKSSON, Gunnar
    • D21C9/00D21H11/20
    • D21C5/005D21H11/18
    • The present invention provides a method for treatment of chemical pulp for the manufacturing of microfibrillated cellulose comprising the following steps: a) providing a hemicellulose containing pulp, b) refining said pulp in at least one step and treating said pulp with one or more wood degrading enzymes at a relatively low enzyme dosage, and c) homogenizing said pulp thus providing s aid microfibrillated cellulose. According to a second aspect of the invention a microfibrillated cellulose obtainable by the method according to the first aspect is provided . According to a third aspect of the invention, use of said microfibrillated cellulose according to the second aspect in food products, paper products, composite materials, coatings or in rheology modifiers (e.g. drilling muds) is provided .
    • 本发明提供了一种用于处理微纤化纤维素的化学纸浆的方法,包括以下步骤:a)提供含有半纤维素的纸浆,b)至少在一个步骤中精炼所述纸浆并用一种或多种木材降解处理所述纸浆 在较低酶剂量下的酶,和c)均化所述纸浆,从而提供辅助微纤化纤维素。 根据本发明的第二方面,提供了通过根据第一方面的方法可获得的微纤化纤维素。 根据本发明的第三方面,提供了根据第二方面的所述微纤化纤维素在食品,纸制品,复合材料,涂料或流变改性剂(例如钻井泥浆)中的用途。
    • 4. 发明申请
    • PROCESS FOR THE HYDROLYSIS OF CELLULOSE
    • 水解纤维素的方法
    • WO2010124944A1
    • 2010-11-04
    • PCT/EP2010/055030
    • 2010-04-16
    • HELI INOVATIO HANDELSBOLAGHENRIKSSON, GunnarLINDSTRÖM, Mikael
    • HENRIKSSON, GunnarLINDSTRÖM, Mikael
    • C13K1/02C12P7/06C12P7/10
    • C13K1/02C12P7/10C12P19/02Y02E50/16Y02E50/17
    • There is disclosed a process for the hydrolysis of cellulose comprising the sequential steps (a) mixing cellulose with a viscosity below 900 ml/g with an aqueous solution to obtain a liquid, wherein particles comprising cellulose in said liquid have a diameter of maximum 200 nm, wherein the temperature of the aqueous solution is below 35°C, and wherein the pH of the aqueous solution is above 12, (b) subjecting the liquid to at least one of the steps: (i) decreasing the pH of the liquid with at least 1 pH unit and (ii) increasing the temperature by at least 20°C, and (c) hydrolyzing the cellulose. Moreover there is disclosed glucose manufactured according to the method and ethanol manufactured from the glucose. Advantages include that the cellulose is hydrolyzed faster and to a greater extent after the treatment. The yield is increased.
    • 公开了一种水解纤维素的方法,其包括以下顺序步骤:(a)用水溶液混合粘度低于900ml / g的纤维素以获得液体,其中在所述液体中包含纤维素的颗粒的直径最大为200nm ,其中所述水溶液的温度低于35℃,并且其中所述水溶液的pH高于12,(b)使所述液体经历以下步骤中的至少一个:(i)降低所述液体的pH, 至少1个pH单位,和(ii)将温度升高至少20℃,和(c)水解纤维素。 此外,公开了根据该方法制备的葡萄糖和由葡萄糖制造的乙醇。 优点包括纤维素在处理之后更快地水解并且更大程度地水解。 产量增加。