Solid cellulosic culture medium and process for producing the same
    21.
    发明申请
    Solid cellulosic culture medium and process for producing the same 有权
    固体纤维素培养基及其制备方法

    公开(公告)号:US20070172938A1

    公开(公告)日:2007-07-26

    申请号:US10591288

    申请日:2005-02-28

    IPC分类号: C12N1/20 C08B5/00

    CPC分类号: C12N1/22 C08L1/02

    摘要: The present invention relates to a solid medium containing as a medium-solidifying component a cellulose gel, in particular a cellulose gel which is a porous cellulose gel structure containing cellulose as the skeletal part and having a cellulose concentration of 0.01% or higher and a porosity of 50% or higher, as well as a process for producing the same. The solid medium of the invention can be obtained by dispersing cellulose in a solvent, especially an aqueous thiocyanate salt solution, stirring and/or heating the dispersion to dissolve the cellulose, subsequently cooling the solution and/or removing the solvent to cause the solution to gel, and permeating nutrients into the resultant cellulose gel. The solid medium usable under a wide range of culture conditions where conventional solid media such as agar medium cannot be used, as well as a method for producing the same is provided.

    摘要翻译: 本发明涉及一种固体培养基,其中含有纤维素凝胶,特别是作为纤维素作为骨架部分并且纤维素浓度为0.01%以上的多孔纤维素凝胶结构的纤维素凝胶的纤维素凝胶, 为50%以上,以及其制造方法。 本发明的固体培养基可以通过将纤维素分散在溶剂中,特别是硫氰酸盐水溶液中,搅拌和/或加热分散体以溶解纤维素,随后冷却溶液和/或除去溶剂, 凝胶,并将渗透的营养物质加入所得的纤维素凝胶中。 提供了在不能使用常规固体培养基如琼脂培养基的广泛培养条件下可使用的固体培养基及其制备方法。

    Deoxyribonuclease and process for its preparation
    24.
    发明授权
    Deoxyribonuclease and process for its preparation 失效
    脱氧核糖核酸酶及其制备方法

    公开(公告)号:US3956064A

    公开(公告)日:1976-05-11

    申请号:US512058

    申请日:1974-10-04

    摘要: A new deoxyribonuclease (DNase) having preservability and high temperature stability is provided by cultivating a new strain M-26 of the genus Bacillus in an alkaline culture medium. The DNase has such a specificity that it very selectively cleaves phosphodiester bonds between deoxyguanosine and deoxyguanosine in a molecule of deoxyribonucleic acid (DNA) while leaving phosphate groups at the 5'-position.

    摘要翻译: 通过在碱性培养基中培养芽孢杆菌属菌株M-26,提供具有保存性和高温稳定性的新脱氧核糖核酸酶(DNase)。 DNase具有这样的特异性,即它在脱氧核糖核酸(DNA)的分子中非常有选择地切割脱氧鸟苷与脱氧鸟苷之间的磷酸二酯键,同时在5'-位上留下磷酸基。

    Hydrocarbon emulsifier or solubilizer composition produced by
Flavobacterium FERM BP-4010
    27.
    发明授权
    Hydrocarbon emulsifier or solubilizer composition produced by Flavobacterium FERM BP-4010 失效
    由Flavobacterium FERM BP-4010生产的烃类乳化剂或增溶剂组合物

    公开(公告)号:US5518726A

    公开(公告)日:1996-05-21

    申请号:US242853

    申请日:1994-05-16

    CPC分类号: C12R1/20 C02F3/34 Y10S435/85

    摘要: A microorganism belonging to the genus Flavobacterium posessing the capacity to decompose hydrocarbons, tolerance to sulfurous acids, tolerance to salinity, tolerance to organic solvents, and tolerance to pressure. The microorganism is of a strain of the genus Flavobacterium DS-711 (FERM BP-4010). A hydrocarbon emulsifier or solubilizer having as an active component thereof a water soluble and acetone insoluble fraction obtained by culturing DS-711 strain. In addition the emulsifier or solubilizer obtained by culturing the strain DS-711 contains 18.4% protein, 18.8% carbohydrates and 28.6% lipids. A separation method for an organic-solvent tolerant microorganism, wherein a sample is mixed with water and an organic solvent, shaking culturing is conducted, a cultured mixture is allowed to stand, separation into an aqueous phase and an organic solvent phase is conducted, an appropriate amount of said organic solvent phase is added to a culture medium and cultured, and microorganisms which grow therein are isolated.

    摘要翻译: 属于属于分解碳氢化合物的能力的微生物的微生物,对亚硫酸的耐受性,对盐度的耐受性,对有机溶剂的耐受性和耐受性。 该微生物是属于属于黄杆菌属DS-711(FERM BP-4010)的菌株。 具有作为其活性成分的烃乳化剂或增溶剂是通过培养DS-711菌株获得的水溶性和丙酮不溶性级分。 此外,通过培养菌株DS-711获得的乳化剂或增溶剂含有18.4%的蛋白质,18.8%的碳水化合物和28.6%的脂质。 一种有机溶剂耐受微生物的分离方法,其中样品与水和有机溶剂混合,进行振荡培养,使培养的混合物静置,分离成水相,并进行有机溶剂相, 将适量的所述有机溶剂相加入到培养基中并进行培养,分离生长在其中的微生物。

    Method for producing penicillinase and xylanase
    28.
    发明授权
    Method for producing penicillinase and xylanase 失效
    生产青霉素酶和木聚糖酶的方法

    公开(公告)号:US5190874A

    公开(公告)日:1993-03-02

    申请号:US401507

    申请日:1989-08-30

    申请人: Koki Horikoshi

    发明人: Koki Horikoshi

    摘要: A novel plasmid pXP102-3 which is constructed from Aeromonas sp. No. 212 chromosomal DNA fragment coding for production of xylanase and a vector plasmid pEAP2 carrying a DNA fragment coding for production and secretion of penicillinase. A novel microorganism, Escherichia coli HB101 (pXP102-3), containing the plasmid pXP102-3 and being capable of producing and secreting penicillinase and xylanase. A method for cultivation of the microorganism characterized in that it is cultured in a broth containing NaCl for 12 to 48 hours.

    摘要翻译: 一种新型质粒pXP102-3,其由气单胞菌属 编码木聚糖酶的212号染色体DNA片段和携带编码青霉素酶生产和分泌的DNA片段的载体质粒pEAP2。 一种新型微生物,大肠杆菌HB101(pXP102-3),其含有质粒pXP102-3,能够产生和分泌青霉素酶和木聚糖酶。 一种培养微生物的方法,其特征在于将其在含有NaCl的肉汤中培养12至48小时。

    Method for preparing magnetic powder
    29.
    发明授权
    Method for preparing magnetic powder 失效
    磁粉制备方法

    公开(公告)号:US4945049A

    公开(公告)日:1990-07-31

    申请号:US343263

    申请日:1989-04-14

    摘要: The present invention relates to a method for preparing magnetic powder comprising homogeneous and fine particles using an alkali-producing enzyme. The object of the present invention is to provide a method suitable for preparing magnetic powder comprising relatively small particles, for instance, fine particles having a particle size ranging from 50 to 500 nm. The present invention relates to a method for preparing at least one member selected from the group consisting of iron oxides, iron hydroxides and iron oxyhydroxides which comprises the step of alkalizing a solution containing iron ions utilizing an alkali-producing enzyme and a substrate of the enzyme.According to the present invention, there can be produced magnetite (Fe.sub.3 O.sub.4) and maghemite (gamma-Fe.sub.2 O.sub.3) useful as magnetic powder as well as goethite (alpha-FeO(OH)), hematite (alpha-Fe.sub.2 O.sub.3) and lepidocrocite (gamma-FeO(OH)) useful as the starting materials thereof. The magnetic powder can be used as the materials for magnetic recording and magnetic fluid; carriers for bioreactors; those for magnetic separation of cells and biopolymers; and those for microcarriers of medicines.

    摘要翻译: PCT No.PCT / JP88 / 00814 Sec。 371日期:1989年4月14日 102(e)日期1989年4月14日PCT PCT 1988年8月18日PCT公布。 出版物WO89 / 01521 日本特开1989年2月23日。本发明涉及一种使用碱生产酶制备含有均匀和细颗粒的磁粉的方法。 本发明的目的是提供一种适用于制备包含相对小的颗粒的磁粉的方法,例如粒度范围为50-500nm的细颗粒。 本发明涉及一种制备选自铁氧化物,氢氧化铁和羟基氧化铁中的至少一种的方法,该方法包括使用碱产生酶和酶底物使含有铁离子的溶液碱化的步骤 。 根据本发明,可以制造用作磁性粉末的磁铁矿(Fe 3 O 4)和磁赤铁矿(γ-Fe 2 O 3)以及针铁矿(α-FeO​​(OH)),赤铁矿(α-Fe 2 O 3)和氯铁矿(γ-FeO (OH))作为起始原料。 磁粉可用作磁记录和磁性液体的材料; 生物反应器的载体; 用于细胞和生物聚合物的磁分离的那些; 和那些用于药物微载体的药物。