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公开(公告)号:US4239854A
公开(公告)日:1980-12-16
申请号:US899466
申请日:1978-04-24
摘要: Enzyme-immobilization carriers which comprise a macroporous amphoteric ion-exchange resin having a cation-exchange capacity due to carboxymethyl groups of 0.5 meq/g-dry resin or more, an anion-exchange capacity of 1 meq/g-dry resin or more, and a specific surface area of 1 m.sup.2 /g-dry resin or more, the total volume of macropores having a diameter of 100 A to 2000 A being 0.1 cc/g-dry resin or more, and a process for producing said carriers.
摘要翻译: 包含由羧甲基为0.5meq / g-干树脂或更多阳离子交换容量,1meq / g-干树脂或更多的阴离子交换容量而具有阳离子交换能力的大孔性两性离子交换树脂的酶固定载体, 比表面积为1m 2 / g-干树脂或更高,直径为100A至2000A的大孔的总体积为0.1cc / g-干树脂或更高,以及用于生产所述载体的方法。
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公开(公告)号:US4247642A
公开(公告)日:1981-01-27
申请号:US878572
申请日:1978-02-16
CPC分类号: C08B37/0018 , C12N11/10
摘要: Enzymes are immobilized by a process wherein the carrier used for immobilizing is a hydrophilic pullulan gel having a three-dimensionally reticulated structure obtained by the reaction between pullulan and a bifunctional compound capable of forming an ether linkage with the hydroxyl group contained in the glucose unit of pullulan, or an ionic pullulan gel obtained by the reaction between said hydrophilic pullulan gel and a compound having at one end an ionizable group and at the other end a functional group capable of forming an ether linkage with the hydroxyl group in the pullulan gel in the presence of an alkaline coumpound. Immobilized enzymes prepared according to this process have a high activity and good retention of the activity.
摘要翻译: 通过一种方法将酶固定化,其中用于固定的载体是具有三维网状结构的亲水支链淀粉凝胶,其通过支链淀粉与能够与葡萄糖单元中所含的羟基形成醚键的双官能化合物反应而获得 支链淀粉或通过所述亲水支链淀粉凝胶和一端具有可离子化基团的反应获得的离子支链淀粉凝胶,另一端是能够与支链淀粉凝胶中的羟基形成醚键的官能团 碱性化合物的存在。 根据该方法制备的固定化酶具有高活性和良好的活性保留性。
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公开(公告)号:US4170696A
公开(公告)日:1979-10-09
申请号:US875120
申请日:1978-02-03
摘要: A diethylaminoethyl derivative or its salt is reacted with a synthetic resin of a macroporous type having functional groups reactive with said diethylaminoethyl derivative or its salt, having a specific area of at least 1 m.sup.2 /g-dry resin and containing macropores of which the total volume of those with pore sizes from 100 A to 2,000 A is at least 0.1 cc/g-dry resin, in the presence of an alkaline compound to give an enzyme-immobilization carrier which can provide an immobilized enzyme high in activity with good activity retentivity and also large in amount of the immobilized enzyme per unit weight of the carrier.
摘要翻译: 二乙基氨基乙基衍生物或其盐与具有与所述二乙基氨基乙基衍生物或其盐反应的官能团的大孔类型的合成树脂反应,比表面积至少为1m 2 / g-干树脂,并含有其总体积 在碱性化合物的存在下,孔径为100A至2,000A的那些是至少0.1cc / g-干树脂,得到能够提供具有良好活性保持性的活性高的固定化酶的酶固定载体, 每单位重量载体的固定化酶量也很大。
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公开(公告)号:US4146432A
公开(公告)日:1979-03-27
申请号:US801246
申请日:1977-05-27
摘要: Non-specific proteases produced by bacteria belonging to the genus Streptomyces are immobilized by adsorption on a specific class of anion exchangers to produce water-insoluble enzymatically active immobilized proteases.
摘要翻译: 通过吸附在特定类型的阴离子交换剂上固定属于链霉菌属的细菌产生的非特异性蛋白酶,以产生不溶于水的酶活性固定蛋白酶。
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公开(公告)号:US4108723A
公开(公告)日:1978-08-22
申请号:US829945
申请日:1977-09-01
CPC分类号: C12P13/08
摘要: A method for optical resolution of DL-lysine alkyl ester or acid-addition salts thereof by contacting an aqueous solution of the ester or salts thereof with a non-specific protease obtained by culturing bacteria belonging to the genus Streptomyces, e.g. St. griseus, at weakly acidic pH and a temperature not exceeding 60.degree. C until 60 - 90% by weight of L-lysine ester or acid-addition salts thereof takes part in a reaction, and recovering L-lysine or acid-addition salts thereof thus produced by a conventional manner. The protease may be immobilized on an insoluble carrier in advance.
摘要翻译: 通过使其酯或盐的水溶液与通过培养属于链霉菌属(Streptomyces)属的细菌获得的非特异性蛋白酶接触来使DL-赖氨酸烷基酯或其酸加成盐进行光学拆分的方法。 圣灰泥,在弱酸性pH和不超过60℃的温度下,直到60-90重量%的L-赖氨酸酯或其酸加成盐参与反应,并回收L-赖氨酸或酸加成盐 因此通过常规方式产生。 蛋白酶可以预先固定在不溶性载体上。
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公开(公告)号:US4255521A
公开(公告)日:1981-03-10
申请号:US40872
申请日:1979-05-21
CPC分类号: C12N9/92 , C12N1/066 , Y10S435/803 , Y10S435/886 , Y10S435/887
摘要: In a process for extracting glucose isomerase from microorganism cells containing glucose isomerase by the so called high pressure release and impact method in which the suspension of the microorganism cells is homogenized for the extraction by releasing the pressure applied on said suspension instantaneously and giving the suspension an impact at very high velocity, the concentration of the suspension containing microorganism cells and the pressure applied on the said suspension are selected within specific ranges, namely from 0.5 to 10 wt. % (on a dry substance base) and from 400 to 700 Kg/cm.sup.2, respectively.
摘要翻译: 在通过所谓的高压释放和冲击法从含有葡萄糖异构酶的微生物细胞中提取葡萄糖异构酶的方法中,其中微生物细胞的悬浮液通过释放立即施加在所述悬浮液上的压力并将悬浮液 以非常高的速度冲击,含有微生物细胞的悬浮液的浓度和施加在所述悬浮液上的压力在特定范围内选择,即0.5至10wt。 %(在干物质基础上)和400至700Kg / cm 2。
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公开(公告)号:US4154744A
公开(公告)日:1979-05-15
申请号:US840128
申请日:1977-10-07
申请人: Kazuhiko Hamada , Gohu Suzukamo , Tsuneyuki Nagase
发明人: Kazuhiko Hamada , Gohu Suzukamo , Tsuneyuki Nagase
IPC分类号: C07D307/46 , C07D307/50
CPC分类号: C07D307/50 , C07D307/46
摘要: A process for producing furan derivatives of the formula, ##STR1## wherein R is hydrogen, methyl or chloromethyl, which comprises reacting a mono- or a disaccharide with hydrochloric acid in a mixture containing water, an organic solvent and a catalytic amount of a surface active agent.
摘要翻译: 一种制备下式的呋喃衍生物的方法,其中R是氢,甲基或氯甲基,其包括使单糖或二糖与盐酸在含有水,有机溶剂和催化量的表面的混合物中反应 活性剂。
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公开(公告)号:US4090016A
公开(公告)日:1978-05-16
申请号:US689064
申请日:1976-05-24
申请人: Kozo Tsuji , Masanori Fujimoto , Fujio Masuko , Tsuneyuki Nagase
发明人: Kozo Tsuji , Masanori Fujimoto , Fujio Masuko , Tsuneyuki Nagase
CPC分类号: C08B37/0018
摘要: Carboxylated pullulan obtained by oxidizing pullulan with an oxidizing agent is readily soluble in cold water and has favorable film-forming property, yielding a film having high mechanical strengths, high modulus of elasticity and good transparency.
摘要翻译: 通过用氧化剂氧化支链淀粉获得的羧基化支链淀粉很容易溶于冷水,具有良好的成膜性,产生机械强度高,弹性模量高,透明性好的膜。
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公开(公告)号:US5006586A
公开(公告)日:1991-04-09
申请号:US337750
申请日:1989-04-13
申请人: Daijiro Touji , Akihiro Nakahara , Takefumi Nakashita , Atsuko Mitsuba , Yukiyasu Nakashio , Tsuneyuki Nagase
发明人: Daijiro Touji , Akihiro Nakahara , Takefumi Nakashita , Atsuko Mitsuba , Yukiyasu Nakashio , Tsuneyuki Nagase
IPC分类号: A61F7/10 , C08K3/00 , C08K3/16 , C08K3/34 , C08K3/40 , C08K5/05 , C08K13/02 , C08L101/06 , C09K5/00 , C09K5/06 , C09K5/08
摘要: A heat reserve material having excellent physical properties. The heat reserve material comprises;(A) a hydrophilic polymer having a hydroxyl group on a principal chain,(B) oxide glass, and(C) water and/or a water-soluble alcohol,wherein an amount of component (B) is within the range of 1 to 50 parts by weight based on 100 parts by weight of component (A), and an amount of component (C) is 6 to 50 times larger than the total weight of components (A) and (B).
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公开(公告)号:US4152170A
公开(公告)日:1979-05-01
申请号:US695762
申请日:1976-06-14
申请人: Tsuneyuki Nagase , Kozo Tsuji , Masanori Fujimoto , Fujio Masuko
发明人: Tsuneyuki Nagase , Kozo Tsuji , Masanori Fujimoto , Fujio Masuko
CPC分类号: C08B37/0018
摘要: Cross-linked pullulans are obtained by the reaction of pullulan with a cross-linking agent selected from the group consisting of polycarboxylic acids, halogenated dicarboxylic acids, polycarboxylic anhydrides, aldehyde compounds, N-methylol compounds, isocyanate compounds, metaphosphoric acid salts, divinyl compounds, bis-aziridine and bifunctional compounds of the formula,X--R--Zwherein X and Z are each a halogen atom or an epoxy group and R is an aliphatic residue having 1 to 30 carbon atoms, in a solvent, and are useful as gels or beds for chromatography or in various fields requiring high degrees of water absorbency and retention.
摘要翻译: 通过支链淀粉与选自多元羧酸,卤代二羧酸,多羧酸酐,醛化合物,N-羟甲基化合物,异氰酸酯化合物,偏磷酸盐,二乙烯基化合物的交联剂的反应获得交联的起始链优化 ,双氮丙啶和下式的双官能化合物XRZ,其中X和Z各自为卤素原子或环氧基,R为具有1至30个碳原子的脂族残基,并且可用作凝胶或床 色谱法或需要高吸水度和保留度的各种领域。
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