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1.发明授权
公开(公告)号：US5405531A
公开(公告)日：1995-04-11
申请号：US18288
申请日：1993-02-16
CPC分类号： A01N59/00 , C02F1/50 , C02F3/302 , C02F3/34 , C02F3/345 , C09K8/532 , C09K8/54 , C09K8/582 , C09K2208/22 , C09K2208/32 , Y10S210/903
摘要： Hydrogen sulfide present in an aqueous system is removed and the production of hydrogen sulfide by sulfate-reducing bacteria (SRB) is eliminated by introducing into the system nitrite and nitrate and/or molybdate ions, whereby denitrifying microorganisms outcompete the sulfate-reducing bacteria for the available carbon nutrients, thus preventing the SRB from producing hydrogen sulfide and the nitrite along with the denitrifying microorganisms remove hydrogen sulfide already present in the system. The system which contains the denitrifying microorganisms and which is essentially free of hydrogen sulfide can enhance oil recovery by means of a microbial enhanced oil recovery mechanisms.
摘要翻译： 存在于水体系中的硫化氢被除去，通过向亚硝酸盐和硝酸盐和/或钼酸盐离子中引入硝酸盐和/或钼酸盐离子来消除通过硫酸盐还原细菌（SRB）产生硫化氢，从而使脱氮微生物与硫酸盐还原细菌相匹配 可用的碳营养物质，从而防止SRB产生硫化氢，亚硝酸盐与脱氮微生物一起除去系统中已经存在的硫化氢。 含有脱氮微生物并且基本上不含硫化氢的体系可以通过微生物增强的油回收机制增强油的回收。
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2.发明授权Composition for reducing the amount of and preventing the formation of hydrogen sulfide in an aqueous system, particularly in an aqueous system used in oil field applications 失效用于减少含水体系中硫化氢的量和防止形成硫化物的组合物，特别是用于油田应用中的水性体系
公开(公告)号：US5750392A
公开(公告)日：1998-05-12
申请号：US306324
申请日：1994-09-15
CPC分类号： A01N59/00 , C02F1/50 , C02F3/302 , C02F3/34 , C02F3/345 , C09K8/532 , C09K8/54 , C09K8/582 , C09K2208/22 , C09K2208/32 , Y10S210/903
摘要： Hydrogen sulfide present in an aqueous system is removed and the production of hydrogen sulfide by sulfate-reducing bacteria (SRB) is eliminated by introducing into the system nitrite and nitrate and/or molybdate ions, whereby denitrifying microorganisms outcompete the sulfate-reducing bacteria for the available carbon nutrients, thus preventing the SRB from producing hydrogen sulfide and the nitrite along with the denitrifying microorganisms remove hydrogen sulfide already present in the system. The system which contains the denitrifying microorganisms and which is essentially free of hydrogen sulfide can enhance oil recovery by means of a microbial enhanced oil recovery mechanisms.
摘要翻译： 存在于水体系中的硫化氢被除去，通过向亚硝酸盐和硝酸盐和/或钼酸盐离子中引入硝酸盐和/或钼酸盐离子来消除通过硫酸盐还原细菌（SRB）产生硫化氢，从而使脱氮微生物与硫酸盐还原细菌相匹配 可用的碳营养物质，从而防止SRB产生硫化氢，亚硝酸盐与脱氮微生物一起除去系统中已经存在的硫化氢。 含有脱氮微生物并且基本上不含硫化氢的体系可以通过微生物增强的油回收机制增强油的回收。
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公开(公告)号：US5250483A
公开(公告)日：1993-10-05
申请号：US887011
申请日：1992-05-22
申请人： George T. Sperl , Donald O. Hitzman
发明人： George T. Sperl , Donald O. Hitzman
CPC分类号： B01J23/90 , B01J37/36 , B01J38/48 , Y10S423/17 , Y10S435/874
摘要： A method of releasing metals from catalysts in a form that is readily recoverable using denitrifying bacteria is disclosed. The method can be used to regenerate catalysts and to recover metals from catalysts, especially molybdenum and nickel.
摘要翻译： 公开了一种使用反硝化细菌易于回收的形式从催化剂中释放金属的方法。 该方法可用于再生催化剂和从催化剂，特别是钼和镍回收金属。
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公开(公告)号：US4818700A
公开(公告)日：1989-04-04
申请号：US791485
申请日：1985-10-25
申请人： James M. Cregg , George T. Sperl
发明人： James M. Cregg , George T. Sperl
CPC分类号： C12N15/815 , Y10S435/849 , Y10S435/938
摘要： Novel DNA sequences which code for the production of the Pichia protein argininosuccinate lyase are provided. Novel constructs including these sequences, as well as organisms transformed therewith are provided. In addition, novel strains of Pichia defective in argninosuccinate lyase activity are also provided.
摘要翻译： 提供编码生产毕赤酵母蛋白精氨基琥珀酸裂解酶的新型DNA序列。 提供包括这些序列的新型构建体以及其转化的生物体。 此外，还提供了新的抗坏血酸琥珀酸裂合酶活性的毕赤酵母菌株。
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公开(公告)号：US4879231A
公开(公告)日：1989-11-07
申请号：US666579
申请日：1984-10-30
CPC分类号： C12N15/815 , C12N15/63
摘要： Process for transforming yeast strains of the genus Pichia is disclosed. Novel yeast strains of the genus Pichia which can be transformed with recombinant DNA material are also disclosed. In addition, a method for isolating functional genes and other functional DNA sequences from yeast strains of the genus Pichia is described.
摘要翻译： 公开了用于转化毕赤酵母属的酵母菌株的方法。 还公开了可用重组DNA材料转化的毕赤酵母属的新型酵母菌株。 另外，描述了从毕赤酵母属菌株中分离功能基因和其他功能性DNA序列的方法。
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公开(公告)号：US4795708A
公开(公告)日：1989-01-03
申请号：US838064
申请日：1986-03-10
申请人： George T. Sperl , John A. Cruze
发明人： George T. Sperl , John A. Cruze
CPC分类号： C12R1/26 , C12N1/32 , Y10S435/804 , Y10S435/858
摘要： Single cell protein (SCP) is produced at high yields from a novel methanol assimilating Methylomonas sp. grown at elevated temperatures in an aerobic bacterial fermentation process.
摘要翻译： 单细胞蛋白（SCP）以高产量从新型甲醇同化的甲基单胞菌属（Methylomonas sp。）生产。 在需氧细菌发酵过程中在升高的温度下生长。
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公开(公告)号：US5044435A
公开(公告)日：1991-09-03
申请号：US552709
申请日：1990-07-16
申请人： George T. Sperl , Penny L. Sperl
发明人： George T. Sperl , Penny L. Sperl
摘要： A method of microbial enhanced oil recovery includes introducing, into an underground carbonate-containing rock formation that defines an anaerobic environment, denitrifying microorganisms, water, and a source of nitrate ion. The microorganisms reduce the nitrate and produce sulfuric acid which dissolves the rock formation, releasing oil. The microorganisms can be denitrifying Thiobacilli, such as T. denitrificans.
摘要翻译： 微生物强化采油的方法包括将其引入含有含氧环境的地下含碳酸盐岩中，使微生物，水和硝酸根离子脱氮。 微生物减少硝酸盐并产生溶解岩层的硫酸，释放油。 微生物可以是脱氮硫杆菌，例如反硝化霉菌。
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公开(公告)号：US5204261A
公开(公告)日：1993-04-20
申请号：US690433
申请日：1991-04-24
CPC分类号： C12N9/0006 , C12N1/16 , C12R1/84 , Y10S435/938
摘要： A novel strain of P. pastoris and an alcohol oxidase free of catalase activity produced therefrom is provided.
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