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Highlights ► Catalytic production of 1,2-PDO via glycerol hydrogenolysis performed in bio-ethanol solvent. ► Small amount of Rh-promoted Cu/solid-base catalysts are extremely active at low pressure. ► Rh-promoted Cu/solid-base catalyst could be recycled in ethanol solvent. ► The influence...
Highlights ► d -Lactic acid production by Lactobacillus delbrueckii were carried using Ca(OH) 2 , NH 4 OH, and NaOH as neutralizing agents. ► Broken rice was used for production of d -lactic acid by simultaneous saccharification and fermentation processes. ► Ca(OH) 2 gave the highest...
Highlights ► Novel graft copolymers from enzymatic hydrolysis lignin and amino acids were prepared. ► The graft copolymers were used as biosorbents of Cu(II) and Co(II) ions. ► The biosorption processes of Cu(II) and Co(II) ions onto graft copolymers were endothermic. ► The use of graft...
Highlights ► An ethanologenic yeast able to utilize cellobiose as sole carbon source. ► Produces sufficient β-glucosidase activity for cellulosic ethanol production by SSF. ► Tolerant to biomass pre-treatment inhibitors such as furfural and HMF. ► Facilitates economic consolidated SSF...
Highlights ► We developed a process and cost model for ethanol production from raw juice. ► Sensitivity study showed that the system is economically viable. ► The optimal percentage of recycled biomass is in the range from 50% to 70%. ► The model may be used as a useful tool for process...
Graphical abstract Glycoproteins of EPS (concentrated extracts with freeze-drying) extracted with EDTA from sludges separated on 1D-SDS–PAGE electrophoresis. M are molecular weight markers which consist of a commercial prestained standard protein mixture (Fermentas). Proteins were PAS stained.
Highlights ► SBR biotreatment of o -nitrobenzaldehyde manufacturing wastewater. ► Variables (SRT and HRT) were studied for the determination of kinetic constants. ► Changes of sludge flocs were studied by chemical analysis, FISH and DGGE. ► The results of DGGE profile analysis are in...
Highlights ► The first 2,3-xylenol-utilizing bacterium capable of degrading multiple phenols. ► We modeled the first xylenol microbial degradation process. ► We first proposed three kinds of patterns to describe the biomass yields of phenols.
Highlights ► Baffled subsurface-flow constructed wetland for nitrogen removal enhancement. ► Enhancement of aerobic and anoxic/anaerobic conditions in baffled wetland unit. ► Better performance of baffled unit in NH 4 + -N removal due to longer pathway. ► Complete oxidized nitrogen...
Highlights ► Physiological study of ethanol production from glycerol by P. tannophilus . ► P. tannophilus insensitive to batch variations in crude glycerol. ► Ethanol production of 28.1 g/L achieved in staged batch process. ► Highest reported ethanol production from glycerol in microbial...
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