TY  - JOUR
AU  - Kekez, B. D.
AU  - Gojgić-Cvijović, Gordana D.
AU  - Jakovljević, Dragica M.
AU  - Stefanović Kojić, Jovana R.
AU  - Marković, M. D.
AU  - Beškoski, Vladimir
AU  - Vrvić, Miroslav M.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1670
AB  - In this study, levan production by Bacillus licheniformis NS032 isolated from a petroleum sludge sample was investigated. High levan yield was obtained in a wide range of sucrose concentrations (up to 400 g/L) and, contrary to most levan-producing strains, using ammonium chloride as the sole N source. Interaction between sucrose, ammonium chloride, and initial pH of the medium in a low sucrose (60-200 g/L) and a high sucrose (300-400 g/L) system was analyzed by response surface methodology. According to the calculated model in the low sucrose system, maximum predicted levan yield was 47.8 g/L (sucrose 196.8 g/L, ammonium chloride 2.4 g/L, pH 7.0), while in the high sucrose system, levan yield was 99.2 g/L (sucrose 397.6 g/L, ammonium chloride 4.6 g/L, pH 7.4). In addition, protective effect of microbial levan against copper toxicity to Daphnia magna is observed for the first time. The acute toxicity (48 h EC50) of copper decreased from 0.14 to 0.44 mg/L by levan in concentration of 50 ppm.
PB  - Humana Press Inc, Totowa
T2  - Applied Biochemistry and Biotechnology
T1  - High Levan Production by Bacillus licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source
VL  - 175
IS  - 6
SP  - 3068
EP  - 3083
DO  - 10.1007/s12010-015-1475-8
ER  - 

@article{
author = "Kekez, B. D. and Gojgić-Cvijović, Gordana D. and Jakovljević, Dragica M. and Stefanović Kojić, Jovana R. and Marković, M. D. and Beškoski, Vladimir and Vrvić, Miroslav M.",
year = "2015",
abstract = "In this study, levan production by Bacillus licheniformis NS032 isolated from a petroleum sludge sample was investigated. High levan yield was obtained in a wide range of sucrose concentrations (up to 400 g/L) and, contrary to most levan-producing strains, using ammonium chloride as the sole N source. Interaction between sucrose, ammonium chloride, and initial pH of the medium in a low sucrose (60-200 g/L) and a high sucrose (300-400 g/L) system was analyzed by response surface methodology. According to the calculated model in the low sucrose system, maximum predicted levan yield was 47.8 g/L (sucrose 196.8 g/L, ammonium chloride 2.4 g/L, pH 7.0), while in the high sucrose system, levan yield was 99.2 g/L (sucrose 397.6 g/L, ammonium chloride 4.6 g/L, pH 7.4). In addition, protective effect of microbial levan against copper toxicity to Daphnia magna is observed for the first time. The acute toxicity (48 h EC50) of copper decreased from 0.14 to 0.44 mg/L by levan in concentration of 50 ppm.",
publisher = "Humana Press Inc, Totowa",
journal = "Applied Biochemistry and Biotechnology",
title = "High Levan Production by Bacillus licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source",
volume = "175",
number = "6",
pages = "3068-3083",
doi = "10.1007/s12010-015-1475-8"
}

Kekez, B. D., Gojgić-Cvijović, G. D., Jakovljević, D. M., Stefanović Kojić, J. R., Marković, M. D., Beškoski, V.,& Vrvić, M. M.. (2015). High Levan Production by Bacillus licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. in Applied Biochemistry and Biotechnology
Humana Press Inc, Totowa., 175(6), 3068-3083.
https://doi.org/10.1007/s12010-015-1475-8

Kekez BD, Gojgić-Cvijović GD, Jakovljević DM, Stefanović Kojić JR, Marković MD, Beškoski V, Vrvić MM. High Levan Production by Bacillus licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. in Applied Biochemistry and Biotechnology. 2015;175(6):3068-3083.
doi:10.1007/s12010-015-1475-8 .

Kekez, B. D., Gojgić-Cvijović, Gordana D., Jakovljević, Dragica M., Stefanović Kojić, Jovana R., Marković, M. D., Beškoski, Vladimir, Vrvić, Miroslav M., "High Levan Production by Bacillus licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source" in Applied Biochemistry and Biotechnology, 175, no. 6 (2015):3068-3083,
https://doi.org/10.1007/s12010-015-1475-8 . .

TY  - DATA
AU  - Kekez, B. D.
AU  - Gojgić-Cvijović, Gordana D.
AU  - Jakovljević, Dragica M.
AU  - Stefanović Kojić, Jovana R.
AU  - Marković, M. D.
AU  - Beškoski, Vladimir
AU  - Vrvić, Miroslav M.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3376
PB  - Humana Press Inc, Totowa
T2  - Applied Biochemistry and Biotechnology
T1  - Supplementary data for article: Kekez, B. D.; Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Stefanovic Kojic, J. R.; Markovic, M. D.; Beskoski, V. P.; Vrvic, M. M. High Levan Production by Bacillus Licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. Applied Biochemistry and Biotechnology 2015, 175 (6), 3068–3083. https://doi.org/10.1007/s12010-015-1475-8
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3376
ER  - 

@misc{
author = "Kekez, B. D. and Gojgić-Cvijović, Gordana D. and Jakovljević, Dragica M. and Stefanović Kojić, Jovana R. and Marković, M. D. and Beškoski, Vladimir and Vrvić, Miroslav M.",
year = "2015",
publisher = "Humana Press Inc, Totowa",
journal = "Applied Biochemistry and Biotechnology",
title = "Supplementary data for article: Kekez, B. D.; Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Stefanovic Kojic, J. R.; Markovic, M. D.; Beskoski, V. P.; Vrvic, M. M. High Levan Production by Bacillus Licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. Applied Biochemistry and Biotechnology 2015, 175 (6), 3068–3083. https://doi.org/10.1007/s12010-015-1475-8",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3376"
}

Kekez, B. D., Gojgić-Cvijović, G. D., Jakovljević, D. M., Stefanović Kojić, J. R., Marković, M. D., Beškoski, V.,& Vrvić, M. M.. (2015). Supplementary data for article: Kekez, B. D.; Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Stefanovic Kojic, J. R.; Markovic, M. D.; Beskoski, V. P.; Vrvic, M. M. High Levan Production by Bacillus Licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. Applied Biochemistry and Biotechnology 2015, 175 (6), 3068–3083. https://doi.org/10.1007/s12010-015-1475-8. in Applied Biochemistry and Biotechnology
Humana Press Inc, Totowa..
https://hdl.handle.net/21.15107/rcub_cherry_3376

Kekez BD, Gojgić-Cvijović GD, Jakovljević DM, Stefanović Kojić JR, Marković MD, Beškoski V, Vrvić MM. Supplementary data for article: Kekez, B. D.; Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Stefanovic Kojic, J. R.; Markovic, M. D.; Beskoski, V. P.; Vrvic, M. M. High Levan Production by Bacillus Licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. Applied Biochemistry and Biotechnology 2015, 175 (6), 3068–3083. https://doi.org/10.1007/s12010-015-1475-8. in Applied Biochemistry and Biotechnology. 2015;.
https://hdl.handle.net/21.15107/rcub_cherry_3376 .

Kekez, B. D., Gojgić-Cvijović, Gordana D., Jakovljević, Dragica M., Stefanović Kojić, Jovana R., Marković, M. D., Beškoski, Vladimir, Vrvić, Miroslav M., "Supplementary data for article: Kekez, B. D.; Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Stefanovic Kojic, J. R.; Markovic, M. D.; Beskoski, V. P.; Vrvic, M. M. High Levan Production by Bacillus Licheniformis NS032 Using Ammonium Chloride as the Sole Nitrogen Source. Applied Biochemistry and Biotechnology 2015, 175 (6), 3068–3083. https://doi.org/10.1007/s12010-015-1475-8" in Applied Biochemistry and Biotechnology (2015),
https://hdl.handle.net/21.15107/rcub_cherry_3376 .