Utilisation of food industry by-products in the production of oxytetracycline by Streptomyces rimosus 93060

Abou‐Zeid, Abou‐Zeid A.; El‐Diwany, Ahmed I.; Shaker, Hossam El-Deen; Salem, Hassan

doi:10.1016/0141-4607(80)90006-2

Cited by 6 publications

(7 citation statements)

References 16 publications

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“…However, in AZ media which has been used for the production of OTC by Streptomyces rimosus [17], the OTC current (I pa1(OTC) ) response was decreased by as much as 90% (data not shown). This is attributed to the oxidation of peptone which, as shown in Section 3.1,…”

Section: <Figure 5>mentioning

confidence: 76%

“…In the presence of 50-fold diluted LDM, an OTC detection limit (LOD) was experimentally established to be 0.5 µM (data not shown). This is suitably low for practical OTC determination, as OTC fermentation yields have been reported to vary between 0.24 -3.71 mM [14,15,17,21] which remains above the LOD even after 50 fold sample dilution.…”

Section: Page 13 Of 29mentioning

confidence: 96%

“…Currently, quantification of OTC production during fermentation occurs mainly through two off-line processes: high performance liquid chromatography (HPLC) of pre-treated samples [19,20], or variations of the disk-diffusion method which, based on the required incubation period of 16 -24 hours, appears an impractical method for the OTC production process which itself spans only 5 -10 days [13,17,21]. A rapid monitoring system for OTC during production in bioprocesses would greatly improve on current process monitoring for this industry [22].…”

Section: <Figure 1>mentioning

confidence: 99%

“…OTC has also shown promise as a low-dose/long term growth promoter for livestock [11,12]. Production of OTC by Streptomyces rimosus in fermentation vessels in the bioprocess industry has been explored in a wide range of different microbiological growth media for optimal generation of OTC [13][14][15][16][17] which, coupled with its wide-spread use, provides a relevant case study for this work.…”

Section: Introductionmentioning

confidence: 99%

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Voltammetric investigation of complex growth media at a bare glassy carbon electrode: A case study of oxytetracycline

Kruid

Fogel

Limson

2014

Electrochimica Acta

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Section: <Figure 5>mentioning

confidence: 76%

Section: Page 13 Of 29mentioning

confidence: 96%

Section: <Figure 1>mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Voltammetric investigation of complex growth media at a bare glassy carbon electrode: A case study of oxytetracycline

Kruid

Fogel

Limson

2014

Electrochimica Acta

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“…Previous researches showed that MW can alter enzymatic activities by disrupting weak bonds in active protein forms (Dreyfuss & Chipley, 1980), and produce reactive oxygen species (such as ·OH) (Betti et al, 2004), which was used to inactivate microorganisms (Watanabe, Kakita, Kashige, Miake, & Tsukiji, 2000). Moreover, MW irradiation has been proven to present non-thermal effects on cell viability by inducing variations in ionic homeostasis within cells.…”

Section: Distinct Inactivation Mechanisms Of Airborne and Waterborne mentioning

confidence: 99%

Airborne disinfection using microwave-based technology: Energy efficient and distinct inactivation mechanism compared with waterborne disinfection

Wang

Zhang

2019

Journal of Aerosol Science

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A B S T R A C TMicrowave has been extensively applied to inactivate microorganisms in liquids, food, and surfaces. However, energy efficiency is a limiting factor for the environmental application. The utilization pathway and energy efficiency of the microwave in different media have not been investigated. In this study, the inactivation performance, energy utilization, and bactericidal mechanisms for microwave-irradiated airborne and waterborne Escherichia coli were compared. A Beer-Lambert law-based model was also developed and validated to compare the inactivation performance in different phases. Microwave had greater inactivation effect on airborne bacteria than waterborne bacteria. The inactivation rate constant for airborne E. coli (0.29 s −1 ) was nearly 20 times higher than that of waterborne species (0.014 s −1 ). Most of the absorbed microwave energy (92.3%) was converted to increase water temperature instead of inactivating the waterborne bacteria, because the microwave photons were easily absorbed by water molecules. By contrast, 45.4% of the absorbed energy could disinfect the airborne bacteria. Finally, the required energies for 1-log inactivation were calculated as 2.3 J and 116.9 J per log-inactivation for airborne and waterborne E. coli, respectively. The airborne and waterborne E. coli samples showed distinct microwave inactivation mechanisms. Waterborne E. coli disinfection was primarily due to thermal effect, while the non-thermal effect was the major mechanism for airborne E. coli inactivation.

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Bioconversion of food processing wastes

Kroyer¹

1998

Bioconversion of Waste Materials to Industrial Products

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Utilisation of food industry by-products in the production of oxytetracycline by Streptomyces rimosus 93060

Cited by 6 publications

References 16 publications

Voltammetric investigation of complex growth media at a bare glassy carbon electrode: A case study of oxytetracycline

Voltammetric investigation of complex growth media at a bare glassy carbon electrode: A case study of oxytetracycline

Airborne disinfection using microwave-based technology: Energy efficient and distinct inactivation mechanism compared with waterborne disinfection

Bioconversion of food processing wastes

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