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In this study, lignite was degraded using a purified esterase from Penicillium decumbens P6 for the first time. The esterase was purified using ammonium sulfate precipitation, anion exchange and gel filtration chromatography. The recovery and purification yield of the enzyme were 15% and 83 folds, respectively. The molecular weight of the purified enzyme was about 45 kDa. Both crude and purified esterases...
The biosolubilization of lignite is a promising technology for converting these low rank coals into value-added products, such as humic acid (HA), and the development of this technology has received increasing attention. In this study, Bacillus sp. Y7 was isolated from weathered lignite minerals and was shown to have effective solubilization activity on untreated Chinese lignite. More than 36.77%...
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