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Determination of cell numbers of lactic acid producing bacteria by lactate sensor
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Article
Hydrogen production from glucose by immobilized growing cells ofClostridium butyricum
Clostridium butyricum was immobilized in a porous carrier (acetylcellulose filter) with agar. Addition of peptone to the reaction mixture increased the hydrogen productivity from glucose. The number of cells in ...
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Article
Ultrasound sensitive enzyme-membrane
Glucose oxidase (GOD) was immobilized on an acetylcellulose membrane filter (pore size: 0.45 μm) with dipalmitoyl phosphatidyl-choline (DPPC). The activity of the GOD-DPPC membrane appeared during ultrasonic i...
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Article
Stress sensitive glucose oxidase-nylon membrane
Glucose oxidase (GOD) was immobilized on a nylon membrane. No activity of the GOD-nylon membrane was observed under normal conditions but it appeared when the membrane was mechanically stretched. A linear rela...
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Article
Microbial sensor system which usesMethylomonas sp. for the determination of methane
A microbial sensor system was prepared for the detemination of methane. This microbial sensor consisted of immobilizedMethylomonas sp. and an oxygen electrode. When sample gas containing methane was applied to th...
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Article
Amperometric determination of viable cell numbers based on sensing microbial respiration
Viable cell numbers were determined with an electrode system composed of a membrane filter for retaining microorganisms and an oxygen electrode. The principle of the cell number determination is based on sensi...
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Article
Production of 1,2-epoxyalkanes from 1-alkenes by Nocardia corallina B-276
A gaseous hydrocarbon-assimilating microorganism, Nocardia corallina, grew on 1-alkenes (C3, C4 and C13 to C18) and produced corresponding 1,2-epoxyalkanes. One of the products, 1,2-epoxytetradecane, had a positi...
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Article
A photochemical fuel cell system using Anabaena N-7363
A blue-green algae, Anabaena N-7363, was immobilized in 2% agar gel. The hydrogen productivity of the immobilized algae was three times higher than that of free algae. The maximum hydrogen production rate by the ...
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Article
A rapid electrochemical method for assimilation test of microorganisms
A microbial electrode consisting of the immobilized microorganisms to be tested and an oxygen electrode was used to study the assimilation characteristics of microorganisms. When a sample solution containing a...
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Article
A specific microbial sensor for formic acid
A microbial sensor consisting of immobilized Clostridium butyricum, two gas permeable Teflon membranes and fuel cell type electrode was suitable for the determination of formic acid. When the sensor was inserted ...
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Article
Enhancement of penicillin acylase activity by cultivating immobilized Kluyvera citrophila
Whole cells of Kluyvera citrophila were immobilized in polyacrylamide gel. The penicillin acylase activity of immobilized whole cells was 60%–70% of native cells. When the immobilized cells were continuously cult...
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Article
Electrochemical determination of cell populations
Determination of cell populations was carried out using the potentiostatic systems. The system was constructed from two platinum electrodes and a saturated calomel electrode. The anode of a reference system wa...
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Article
Amperometric estimation of BOD by using living immobilized yeasts
A microbial electrode consisting of immobilized living whole cells of yeasts, porous membrane and an oxygen electrode was prepared for continuous estimation of biochemical oxygen demand (BOD). Immobilized Trichos...
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Article
Glucose sensor using immobilized whole cells of Pseudomonas fluorescens
Whole cells of Pseudomonas fluorescens which utilized mainly glucose were immobilized in collagen membrane. The microbial electrode consisted of a bacteria-collagen membrane and an oxygen electrode was developed ...
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Article
α-Amylase production by immobilized whole cells of Bacillus subtilis
Whole cells of Bacillus subtilis were immobilized in polyacrylamide gel prepared from 5% total acrylamide (85% acrylamide and 15% N,N′-methylenebisacrylamide). Production of α-amylase by the immobilized whole cel...