Possible Developments in Microbial and Other Sensors for Fermentation Control

Karube, Isao

doi:10.1080/02648725.1984.10647803

Cited by 19 publications

(3 citation statements)

References 34 publications

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“…Previous works reported the possibility of using enzymatic electrochemical sensors for monitoring glucose in fermentation processes [8,9]. However, there are some issues related to the instability of the enzyme.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of glucose in fermentation processes by using Au/TiO2 composites as novel modified electrodes

et al. 2015

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This paper demonstrates an effective method of monitoring glucose in fermentation processes based on the development of enzyme-free glucose electrochemical sensors. The sensing electrodes were manufactured by preparing size-controlled Au nanoparticles (NPs), in the form of colloidal solutions, which were dispersed on TiO 2 substrates, and then deposited on commercial carbon screen printed electrodes. The as-synthesized samples were fully characterized by transmission electron microscopy, X-ray diffraction, atomic absorption spectroscopy, and UV-visible diffuse reflectance spectroscopy to obtain information about their morphological, structural, and electronic properties. Particularly, the ability to control the size of Au NPs in the colloidal solution by using different reducing agents and stabilizers is presented here. The Au/ TiO 2 -based modified sensors were assembled and tested for glucose monitoring in an alkaline solution. Results of cyclic voltammetry showed the high electrocatalytic activity of these sensors toward glucose oxidation, whereas no response was detected toward ethanol. This suggests the possibility of using this type of sensor for glucose monitoring in the fermentation processes without ethanol interference. The efficient sensing properties of Au NPembedded TiO 2 composites may be ascribed to the higher electrocatalytic activity of smaller Au NPs stabilized on TiO 2 .

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Section: Introductionmentioning

confidence: 99%

Monitoring of glucose in fermentation processes by using Au/TiO2 composites as novel modified electrodes

et al. 2015

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“…The specificity and sensitivity required indicates significant potential for on-line biosensors Enfors, 1983, 1984;Karube, 1984;Brooks and Turner, 1987). There are problems with sterilization, stability and robustness, but developments in continuous flow-line sampling (Clarke etal.…”

Section: Measurements For Fermentation Supervision and Controlmentioning

confidence: 99%

Fermentation Monitoring and Control: A Perspective

Montague

Morris

Ward

1989

Biotechnology and Genetic Engineering Reviews

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“…1,2,3). Various sensors using immobilized enzymes and microorganisms were developed for environmental analysis.…”

Section: Introductionmentioning

confidence: 99%

Biosensors for environmental control

Karube¹,

Tamiya²

1987

Pure and Applied Chemistry

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-Various kinds of biosensors were developed for the environmental control. Microbial sensor consisting immobilized yeasts and oxygen probe has been applied to estimation of 5-day BOD. The response time of BOD sensor was less than 20 mm and the minimum measurable BOD was 3 mg l-. Amperometric microbial sensor for ammonia was constructed with immobilized nitrifying bacteria and an oxyger probe. The minimum measurable concentration was 0.1 mg l. The output of the sensor was almost constant for more than 10 days and 200 assays. A sensor consisting of the aerobic recombinant-deficient bacteria and the oxygen electrode could be applied to the preliminary screening of chemical mutagens and carcinogens. Preliminary screening of mutagens was possible within a hour. In addition, other biosensors for nitrite, sulfite ion and methane gas were described.

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Possible Developments in Microbial and Other Sensors for Fermentation Control

Cited by 19 publications

References 34 publications

Monitoring of glucose in fermentation processes by using Au/TiO2 composites as novel modified electrodes

Monitoring of glucose in fermentation processes by using Au/TiO2 composites as novel modified electrodes

Fermentation Monitoring and Control: A Perspective

Biosensors for environmental control

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