PROCESSES AND APPARATUS FOR LIGNIN SEPARATION IN BIOREFINERIES
    62.
    发明申请
    PROCESSES AND APPARATUS FOR LIGNIN SEPARATION IN BIOREFINERIES 审中-公开
    生物学中木质素分离的方法和装置

    公开(公告)号:WO2014025710A1

    公开(公告)日:2014-02-13

    申请号:PCT/US2013/053673

    申请日:2013-08-06

    CPC classification number: C08B1/00 C08B37/0057 C08H6/00 C08H8/00

    Abstract: The present invention generally provides methods of improving lignin separation during lignocellulosic biorefining, comprising the steps of (i) catalyzing fractionation or hydrolysis with an acid to release sugars into an acidified solution containing lignin, (ii) neutralizing the acidified solution with a base to form a salt in a neutralized solution; (iii) in a separation unit, separating the salt and the lignin, each in free or combined form, from the neutralized solution; and then (iv) recycling a portion of the salt and optionally a portion of the lignin to step (i) to combine, physically or chemically, with the lignin, to improve lignin separation in the separation unit. In certain embodiments, the acid is a sulfur-containing acid and the base is lime, forming gypsum which is then recycled, in part, to the hydrolysis reactor.

    Abstract translation: 本发明通常提供在木质纤维素生物精制中改善木质素分离的方法,其包括以下步骤:(i)用酸催化分馏或水解以将糖释放到含木质素的酸化溶液中,(ii)用碱中和酸化溶液形成 中和溶液中的盐; (iii)在分离单元中,以中和的溶液将盐和木质素分别以游离或组合的形式分离; 然后(iv)将一部分盐和任选的一部分木质素再循环到步骤(i)中以与木质素物理或化学结合,以改善分离单元中的木质素分离。 在某些实施方案中,酸是含硫酸,碱是石灰,形成石膏,然后将其部分地再循环到水解反应器中。

    POLYSACCHARIDE SYNTHASES (X)
    63.
    发明申请
    POLYSACCHARIDE SYNTHASES (X) 审中-公开
    多糖合成(X)

    公开(公告)号:WO2014019028A1

    公开(公告)日:2014-02-06

    申请号:PCT/AU2013/000854

    申请日:2013-08-02

    Abstract: The present disclosure relates generally to polysaccharide synthases. The present disclosure reveals that a subset of the CesA gene family encode XynS xylan synthases. As a result of the identification of XynS nucleic acids, and corresponding amino acid sequences that encode XynS xylan synthases, the present invention provides, inter alia, methods and compositions for modulating the level and/or activity of xylan synthase in a cell and/or modulating the level of xylan produced by a cell.

    Abstract translation: 本公开一般涉及多糖合酶。 本公开揭示了CesA基因家族的一个子集编码XynS木聚糖合酶。 作为XynS核酸鉴定和编码XynS木聚糖合酶的相应氨基酸序列的结果,本发明尤其提供了调节细胞中木聚糖合成酶和/或活性的水平和/或活性的方法和组合物,和/或 调节细胞产生的木聚糖水平。

    METHOD OF SEPARATION OF HEMICELLULOSE AND CELLULOSE FROM POLYSACCHARIDE SOURCES
    64.
    发明申请
    METHOD OF SEPARATION OF HEMICELLULOSE AND CELLULOSE FROM POLYSACCHARIDE SOURCES 审中-公开
    从多糖源分离细胞核和纤维素的方法

    公开(公告)号:WO2013171364A1

    公开(公告)日:2013-11-21

    申请号:PCT/FI2013/050414

    申请日:2013-04-15

    Abstract: A method of separating hemicellulose and cellulose by dissolution of hemicellulose from a hemicellulose-rich source, such as a pulp of any origin or from holocellulose. In the method, hemicellulose is dissolved in a solvent system comprising a cellulose solvent, which is either a ionic liquid or another direct cellulose solvent, and a molecular solvent (co-solvent), wherein said co-solvent does not dissolve cellulose, and wherein the solvent basicity and acidity of said ionic liquid or other direct cellulose solvent are adequately adjusted by the co-solvent. The present invention enables quantitative separation of cellulose and hemicellulose without any depolymerization and yield losses as occurring during conventional dissolving pulp manufacturing processes.

    Abstract translation: 通过从富含半纤维素的源(例如任何来源的纸浆或全息纤维素)中溶解半纤维素来分离半纤维素和纤维素的方法。 在该方法中,半纤维素溶解在包含离子液体或其它直接纤维素溶剂的纤维素溶剂和分子溶剂(助溶剂)的溶剂体系中,其中所述助溶剂不溶解纤维素,其中 所述离子液体或其它直接纤维素溶剂的溶剂碱度和酸度通过助溶剂充分调节。 本发明能够定量分离纤维素和半纤维素,而不会在常规溶解纸浆制造过程中发生任何解聚和产率损失。

    A METHOD AND A SYSTEM FOR ISOLATING XYLAN FROM PLANT MATERIAL, AS WELL AS XYLAN, CALCIUM CARBONATE, AND CELLULOSE FIBRE
    66.
    发明申请
    A METHOD AND A SYSTEM FOR ISOLATING XYLAN FROM PLANT MATERIAL, AS WELL AS XYLAN, CALCIUM CARBONATE, AND CELLULOSE FIBRE 审中-公开
    一种用于从植物材料中分离XYLAN的方法和系统,如XYLAN,碳酸钙和纤维素纤维

    公开(公告)号:WO2013144446A1

    公开(公告)日:2013-10-03

    申请号:PCT/FI2013/050338

    申请日:2013-03-26

    Abstract: The invention relates to a method for isolating xylan from plant material. In the method, cellulose fibres which contain xylan are used, advantageously cellulose fibres from hardwood; and xylan is extracted (20) from said cellulose fibres by means of sodium hydroxide for forming an extract solution (17) that contains xylan; cellulose fibres are removed from said mixture that contains cellulose fibres and extract solution (17), for isolating said extract solution from said mixture; carbon dioxide (14) is added to said extract solution (17) for isolating xylan, wherein liquid brightener (18) and precipitated xylan (12) are formed; calcium hydroxide (16) is added to said isolated brightener (18), for forming precipitated calcium carbonate and liquid sodium hydroxide (15); and sodium hydroxide is removed from said mixture that contains sodium hydroxide and precipitated calcium carbonate, for isolating calcium carbonate from said mixture. Furthermore, the invention relates to a system for isolating xylan from plant material, and to xylan, calcium carbonate, cellulose fibre and use of xylan.

    Abstract translation: 本发明涉及从植物材料中分离木聚糖的方法。 在该方法中,使用含有木聚糖的纤维素纤维,有利地是来自硬木的纤维素纤维; 并通过氢氧化钠从所述纤维素纤维中提取木聚糖(20),以形成含有木聚糖的提取液(17); 从含有纤维素纤维和提取液(17)的混合物中除去纤维素纤维,用于从所述混合物中分离所述提取液​​; 将二氧化碳(14)加入到所述提取液​​(17)中以分离木聚糖,其中形成液体增白剂(18)和沉淀的木聚糖(12); 将氢氧化钙(16)加入到所述分离的增白剂(18)中,以形成沉淀的碳酸钙和液体氢氧化钠(15); 从含有氢氧化钠和沉淀碳酸钙的混合物中除去氢氧化钠,从所述混合物中分离出碳酸钙。 此外,本发明涉及一种用于将木聚糖与植物材料隔离的系统,以及木聚糖,碳酸钙,纤维素纤维和木聚糖的使用。

    酶解半纤维素制备高纯度甘露低聚糖的生产方法

    公开(公告)号:WO2013053071A1

    公开(公告)日:2013-04-18

    申请号:PCT/CN2011/001686

    申请日:2011-10-10

    Inventor: 黄代勇 钱金宏

    Abstract: 一种酶解含甘露聚糖的半纤维素制备高纯度的甘露低聚糖方法及产品,它是利用保藏号为CCTCC No:M211147枯草芽抱杆菌TQBm发酵产出的高效能β-甘露聚糖酶BM-II,将魔芋胶、瓜尔豆胶、槐豆胶、田菁胶水解成相对小分子物质,然后经离心分离,絮凝澄清,离子交换技术脱盐、脱色、脱味,再用超滤技术和分子筛层析技术相结合分离糖液中的大分子物质,最后经浓缩、干燥,制备出高纯度甘露低聚糖,制备得到的高纯度甘露低聚糖成本低,无化学污染,可实现工业化生产,并可显著增殖人体肠道双歧杆菌等有益菌,显著减少肠杆菌等有害菌,还具有降血糖、血脂及免疫调节作用,是胃肠道健康、降糖降脂、免疫调节、抗病防病药物的原料和助剂。

    PROCESS OF EXTRACTION OF HEMICELLULOSE FROM CORN FIBER
    69.
    发明申请
    PROCESS OF EXTRACTION OF HEMICELLULOSE FROM CORN FIBER 审中-公开
    从纤维纤维中提取纤维素的方法

    公开(公告)号:WO2013006712A2

    公开(公告)日:2013-01-10

    申请号:PCT/US2012/045580

    申请日:2012-07-05

    Abstract: A process of separating one or more components of corn fiber that comprises contacting the corn fiber with an extraction fluid that comprises at least one weak acid, increasing the temperature of the resulting mixture of fiber and fluid to solubilize hemicellulose of the corn fiber into the fluid, cooling the mixture, and separating the cooled extraction mixture into a soluble fraction comprising dissolved hemicellulose and an insoluble fraction comprising cellulose.

    Abstract translation: 一种分离玉米纤维的一种或多种组分的方法,其包括使玉米纤维与包含至少一种弱酸的提取液接触,提高所得纤维和液体混合物的温度,以将玉米纤维的半纤维素溶解到流体中 ,冷却混合物,并将冷却的提取混合物分离成包含溶解的半纤维素的可溶性级分和包含纤维素的不溶性级分。

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