Biofuels & Bioproducts – Page 3

Systems biology and pathway engineering enable Saccharomyces cerevisiae to utilize C-5 and C-6 sugars simultaneously for cellulosic ethanol production

Saccharomyces cerevisiae is a traditional industrial workhorse for ethanol production. However, conventional ethanologenic yeast is superior in fermentation of hexose sugars (C-6) such as glucose but unable to utilize pentose sugars (C-5) such as xylose [...]

Lower-cost cellulosic ethanol production using cellobiose fermenting yeast Clavispora NRRL Y-50464

Liu Z.L., Weber S.A., ARS-USDA, US

For ethanol production from cellulosic materials, there are generally two major steps needed including enzymatic hydrolysis to break down biomass sugars and microbial fermentation to convert available simple sugars into ethanol. It often requires two [...]

Tolerant yeast in situ detoxifies major class of toxic chemicals while producing ethanol

Liu Z.L., ARS-USDA, US

Renewable lignocellulosic materials contain abundant sugar source and biofuels conversion including cellulosic ethanol production from lignocellulosic biomass provides a sustainable alternative energy resource for a cleaner environment. In order to release the biomass sugars from [...]

Estimation of Algae Concentration in Water Using Spectrophotometric Measurements and First Derivative of Absorbance

AlMomani F., Örmeci B., Qatar University, QA

The occurrence of algae in conventional wastewater treatment plants or aerated lagoons can result in false indications in the final effluent parameters, such as TSS and CBOD5 . Algae plumes create surface scum, poor water [...]

Potential for Green Algae Spirulina to Capture Carbon Dioxide from Gas Stream

Shurair M.S., AlMomani F., Judd S., R. Bhosale R., Kumar A., Qatar University, QA

Scientific evidences show that the earth’s climate is significantly affected because of the continuous emissions of greenhouse gases (GHGs). The increase in CO2 level in the atmosphere leads to global warming as CO2 is one [...]

Environmental impact and Scalability of utilizing Coal Fired Power Plant Flue Gas in Microalgal Biofuel Production

Hess D., Napan K., McNeil B., Quinn J.C., Utah State University, US

Large scale biodiesel production from microalgae is expected to be integrated with point source CO2 sources, such as coal fired power plants. Flue gas integration represents a required nutrient source for growth while concurrently providing [...]

Regulatory Developments Regarding Algae Biomass

Beregson L.L., Bergeson & Campbell, P.C., US

To ensure that algae biomass as a commercial feedstock is considered appropriately by federal regulators under the Toxic Substances Control Act (TSCA), the U.S. Environmental Protection Agency’s (EPA) Office of Pollution Prevention and Toxics (OPPT) [...]

Biodiesel Co-product Utilization: Glycerol-derived Films for use in Commercial Applications

Wyatt V., Strahan G., Liu C-K., Jin T., United States Department of Agriculture, US

Developing new outlets for glycerol would have a significant impact on the economics of biodiesel production if value-added products made from glycerol can be identified. Glycerol is the major co-product produced from the process used [...]

Production Optimization of E. Coli Fermented Synthetic Spider Silk for Commercial Viability

Edlund A., Lewis R., Jones J., Quinn J., Utah State University, US

While spider silk has been known for its impressive physical properties including strength to weight ratio, biocompatibility, elasticity and toughness, the commercial production has been limited. The ability to manufacture synthetic spider silk on an [...]

An Overview of Biomass and Biogas for Energy Generation: Recent Development and Perspectives

Omer A., UON, UK

Biogas from biomass appears to have potential as an alternative energy source, which is potentially rich in biomass resources. This is an overview of some salient points and perspectives of biogas technology. The current literature [...]