The strain Gordonia alkanivorans 135 Is a Promising Destructor of Dibenzothiophene

2020 ◽  
Vol 36 (4) ◽  
pp. 121-125
Author(s):  
Е.Е. Frantsuzova ◽  
A.A. Vetrova

Genes involved in the dibenzothiophene degradation have been identified in the genome of Gordonia alkanivorans 135. The efficiency of the degradation was evaluated by high-performance liquid chromatography after the strain cultivation in mineral sulfur-free medium with glucose (hexadecane) as a carbon source at a temperature of 28 °C. The results obtained in this work allow us to consider the Gordonia alkanivorans 135 strain as promising for development of bio technological method for microbial oil desulfurization. Gordonia, dibenzothiophene, biodegradation. This work was financially supported by the Russian Science Foundation (Grant no. 19-74-00097).

Author(s):  
A. Vetrova

The genes supposedly involved in dibenzothiophene (DBT) degradation were identified in the genome of Gordonia sp. 135. The efficiency of DBT degradation was evaluated by high-performance liquid chromatography after strain cultivation in mineral medium (without sulfur) with glucose (hexadecane) as a carbon source at 28°C.


2007 ◽  
Vol 177 (4S) ◽  
pp. 295-295
Author(s):  
Michael Mullerad ◽  
Haleem J. Issaq ◽  
Alexander Kravtsov ◽  
Timothy Waybright ◽  
Brian Luke ◽  
...  

2013 ◽  
Vol 83 (2) ◽  
pp. 122-128 ◽  
Author(s):  
Cécile Renaud ◽  
Jacques Berger ◽  
Arnaud Laillou ◽  
Sylvie Avallone

Vitamin A deficiency is still one of the major public health problems in least developed countries. Fortification of vegetable oils is a strategy implemented worldwide to prevent this deficiency. For a fortification program to be effective, regular monitoring is necessary to control food quality in the producing units. The reference methods for vitamin A quantification are expensive and time-consuming. A rapid method should be useful for regular assessment of vitamin A in the oil industry. A portable device was compared to high-performance liquid chromatography (HPLC) for three plant oils (rapeseed, groundnut, and soya). The device presented a good linearity from 3 to 30 mg retinol equivalents per kg (mg RE.kg- 1). Its limits of detection and quantification were 3 mg RE.kg- 1 for groundnut and rapeseed oils and 4 mg RE.kg- 1 for soya oil. The intra-assay precision ranged from 1.48 % to 3.98 %, considered satisfactory. Accuracy estimated by the root mean squares error ranged from 3.99 to 5.49 and revealed a lower precision than HPLC (0.4 to 2.25). Although it offers less precision than HPLC, the device estimates quickly the vitamin A content of the tested oils from 3 or 4 to 15 mg RE.kg- 1.


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