INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405
The aim of the work is to realize an alternative processing of toxic industrial waste into surfactants by strains Rhodococcus erythropolis IMV Ac-5017, Acinetobacter calcoaceticus IMV B-7241 and Nocardia vaccinii IMV B-7405 for remediation of environment. The studied strains were grown in liquid...
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National Academy of Sciences of Ukraine, Palladin Institute of Biochemistry
2017-04-01
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| Series: | Biotechnologia Acta |
| Subjects: | |
| Online Access: | http://biotechnology.kiev.ua/images/storage/2_2017/pirog_2_2017.pdf |
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| author | T. P. Pirog M. O. Shulyakova L. V. Nikituk S. I. Antonuk I. V. Elperin |
| author_facet | T. P. Pirog M. O. Shulyakova L. V. Nikituk S. I. Antonuk I. V. Elperin |
| author_sort | T. P. Pirog |
| collection | DOAJ |
| description | The aim of the work is to realize an alternative processing of toxic industrial waste into surfactants by strains Rhodococcus erythropolis IMV Ac-5017, Acinetobacter calcoaceticus IMV B-7241 and Nocardia vaccinii IMV B-7405 for remediation of environment.
The studied strains were grown in liquid media containing such sources of carbon as waste (fried) sunflower oil, technical glycerol (by-product of biodiesel production), and aromatic compounds. The synthesis of surfactants was evaluated by emulsification index, conditional concentration of surfactants and concentration of extracellular surfactants, which was determined gravimetrically after their extraction from supernatant by the mixture of methanol and chloroform. The concentration of oil in water and soil was analyzed by gravimetric method after extraction with hexane.
It was shown that with increasing concentration of the inoculum up to 10−15% and two times increase of nitrogen source content in medium containing 7−8% (v/v) of crude glycerol, concentration of surfactants synthesized by R. erythropolis IMV Ac-5017, A. calcoaceticus IMV B 7241 and N. vaccinii IMV B-7405 was 3.4; 5.0 and 5.3 g/l, respectively, that is 1.6−1.7 times higher as compared with values on basal medium with the same content of substrate. The maximum concentration (3.9−4.3 g/l) of surfactants synthesized by A. calcoaceticus IMV B-7241 on fried sunflower oil (4%) was achieved by using the inoculum grown on refined oil. The ability of R. erythropolis IMV Ac-5017, A. calcoaceticus IMV B-7241 and N. vaccinii IMV B-7405 to decompose aromatic compounds (phenol, naphthalene, toluene, hexachlorobenzene, benzoic and N-phenylanthranilic acid) with simultaneous synthesis of extracellular metabolites with surface-active and emulsifying properties was established. In the presence of surfactants in the form of culture liquid (5−10%), the degree of degradation of complex oil with heavy metal (Cu2+, Cd2+, Pb2+, 0.01−0.5 mmol) pollution in water (3−6 g/l ) and soil (20 g/kg) after 20 days was 82−92%.
Bioconversion of industrial waste into surfactants for environmental technology allows recycling toxic waste, reducing costs of microbial surfactants and provides double effect of environmental purification, which is achieved in the production and use of microbial surfactants. |
| first_indexed | 2024-03-12T05:57:19Z |
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| institution | Directory Open Access Journal |
| issn | 2410-7751 2410-776X |
| language | English |
| last_indexed | 2024-03-12T05:57:19Z |
| publishDate | 2017-04-01 |
| publisher | National Academy of Sciences of Ukraine, Palladin Institute of Biochemistry |
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| series | Biotechnologia Acta |
| spelling | doaj.art-3e6336a8802b4b63b310f21289d20b772023-09-03T04:24:28ZengNational Academy of Sciences of Ukraine, Palladin Institute of BiochemistryBiotechnologia Acta2410-77512410-776X2017-04-01102223310.15407/biotech10.02.022INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405T. P. Pirog0M. O. Shulyakova1 L. V. Nikituk2S. I. Antonuk3 I. V. Elperin4National University of Food Technologies, KyivNational University of Food Technologies, KyivNational University of Food Technologies, KyivNational University of Food Technologies, KyivNational University of Food Technologies, KyivThe aim of the work is to realize an alternative processing of toxic industrial waste into surfactants by strains Rhodococcus erythropolis IMV Ac-5017, Acinetobacter calcoaceticus IMV B-7241 and Nocardia vaccinii IMV B-7405 for remediation of environment. The studied strains were grown in liquid media containing such sources of carbon as waste (fried) sunflower oil, technical glycerol (by-product of biodiesel production), and aromatic compounds. The synthesis of surfactants was evaluated by emulsification index, conditional concentration of surfactants and concentration of extracellular surfactants, which was determined gravimetrically after their extraction from supernatant by the mixture of methanol and chloroform. The concentration of oil in water and soil was analyzed by gravimetric method after extraction with hexane. It was shown that with increasing concentration of the inoculum up to 10−15% and two times increase of nitrogen source content in medium containing 7−8% (v/v) of crude glycerol, concentration of surfactants synthesized by R. erythropolis IMV Ac-5017, A. calcoaceticus IMV B 7241 and N. vaccinii IMV B-7405 was 3.4; 5.0 and 5.3 g/l, respectively, that is 1.6−1.7 times higher as compared with values on basal medium with the same content of substrate. The maximum concentration (3.9−4.3 g/l) of surfactants synthesized by A. calcoaceticus IMV B-7241 on fried sunflower oil (4%) was achieved by using the inoculum grown on refined oil. The ability of R. erythropolis IMV Ac-5017, A. calcoaceticus IMV B-7241 and N. vaccinii IMV B-7405 to decompose aromatic compounds (phenol, naphthalene, toluene, hexachlorobenzene, benzoic and N-phenylanthranilic acid) with simultaneous synthesis of extracellular metabolites with surface-active and emulsifying properties was established. In the presence of surfactants in the form of culture liquid (5−10%), the degree of degradation of complex oil with heavy metal (Cu2+, Cd2+, Pb2+, 0.01−0.5 mmol) pollution in water (3−6 g/l ) and soil (20 g/kg) after 20 days was 82−92%. Bioconversion of industrial waste into surfactants for environmental technology allows recycling toxic waste, reducing costs of microbial surfactants and provides double effect of environmental purification, which is achieved in the production and use of microbial surfactants.http://biotechnology.kiev.ua/images/storage/2_2017/pirog_2_2017.pdfindustrial wastemicrobial surfactantsenvironment remediation |
| spellingShingle | T. P. Pirog M. O. Shulyakova L. V. Nikituk S. I. Antonuk I. V. Elperin INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 Biotechnologia Acta industrial waste microbial surfactants environment remediation |
| title | INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 |
| title_full | INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 |
| title_fullStr | INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 |
| title_full_unstemmed | INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 |
| title_short | INDUSTRIAL WASTE BIOCONVERSION INTO SURFACTANTS BY Rhodococcus erythropolis ІMV Ас-5017, Acinetobacter calcoaceticus ІMV В-7241 and Nocardia vaccinii ІMV В-7405 |
| title_sort | industrial waste bioconversion into surfactants by rhodococcus erythropolis іmv ас 5017 acinetobacter calcoaceticus іmv в 7241 and nocardia vaccinii іmv в 7405 |
| topic | industrial waste microbial surfactants environment remediation |
| url | http://biotechnology.kiev.ua/images/storage/2_2017/pirog_2_2017.pdf |
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