Abstract:
:Clean coal technologies (e.g. coal biosolubilization) are of essential value, especially in Europe, where coal is the national wealth and other energy sources like crude oil are not available. Fusarium oxysporum LOCK 1134, the strain isolated from brown coal, efficiently biosolubilizes lignite. The obtained liquefied products contain 50% less sulfur and over 99% less mercury than the crude coal. Moreover, the liquefied coal can be modified further by laccase. In this study F. oxysporum laccase was expressed in Pichia pastoris for the first time and was assessed as an additional agent for coal degradation. The novel laccase contributes to humic and fulvic acids release from liquefied coal due to introduction of oxygen into coal structure. The effect is increased when a natural redox mediator, sinapic acid, is present in the reaction mixture-up to 30% and 80% respectively. Humic acids obtained by biological process are environmentally friendly fertilizers that may have stimulating effects on crop growth.
journal_name
AMB Expressjournal_title
AMB Expressauthors
Kwiatos N,Jędrzejczak-Krzepkowska M,Strzelecki B,Bielecki Sdoi
10.1186/s13568-018-0669-1subject
Has Abstractpub_date
2018-08-22 00:00:00pages
133issue
1issn
2191-0855pii
10.1186/s13568-018-0669-1journal_volume
8pub_type
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