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Jungle yeast

Scientists have identified a new species of yeast, Candida carvajalis sp. nov, with potential applications in sustainable biofuel production and the food industry. The discovery was made in the Amazon jungle and highlights the importance of preserving biodiversity.

SourceNorwich BioScience Institutes·JournalFEMS Yeast Research·DateMay 21, 2009

Study critiques corn-for-ethanol's carbon footprint

A Duke University-led study found that converting land to conservation reserves is a cheaper and more efficient way to reduce greenhouse gas emissions than using it for corn-based ethanol production. The researchers suggest that cellulosic ethanol production, which uses switchgrass or other species, may be a better option in the future.

SourceDuke University·JournalEcological Applications·DateMar 2, 2009

Commercial yeasts upgraded with an enzyme for biofuel production

Researchers at Goethe University Frankfurt have discovered an enzyme that enables yeast cells to ferment xylose into ethanol, a waste sugar in the cellulosic ethanol production process. This single-step conversion technology has the potential to increase biofuel production efficiency and reduce competition with food and feed production.

SourceGoethe University Frankfurt·JournalApplied and Environmental Microbiology·DateFeb 24, 2009

Biofuels ignite food crisis debate

A study published in Human Ecology highlights the problems linked to converting crops into biofuels, including inefficiency, economic costs, and environmental degradation. The research reveals a negative energy return for many biofuel sources, making them less productive than projected.

SourceSpringer·JournalHuman Ecology·DateJan 28, 2009

Displacing petroleum-derived butanol with plants

Researchers at the University of Illinois have developed a way to produce higher concentrations of butanol using microorganisms. The mutant strain can use five or six carbon sugars, making it more versatile and efficient. This breakthrough could lead to the development of a second-generation strain with targeted genetic alterations.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalApplied and Environmental Microbiology·DateJan 8, 2009

Can biofuels be sustainable?

Researchers found that a portion of corn stover can be harvested for biofuel production without reducing soil organic carbon levels in high-yielding systems. This study suggests that corn stover could supply up to 25% of the biofuel crop needed by 2030.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateAug 19, 2008

Research yields pricey chemicals from biodiesel waste

Chemical engineers at Rice University have unveiled a set of techniques for cleanly converting glycerin, a major biofuels waste byproduct, into high-value organic acids such as succinate and formate. The new fermentation process uses E. coli bacteria to convert glycerin into these valuable chemicals.

SourceRice University·JournalMetabolic Engineering·DateJun 30, 2008

Beyond nutrition -- plants deliver

The Plant Journal special issue explores how plants can convert their fixed carbon into fuels and other useful products. This provides a renewable and affordable source of carbon to sustain future economic development without negatively impacting the environment.

SourceWiley·JournalThe Plant Journal·DateMay 12, 2008

New source for biofuels discovered

Researchers from the University of Texas at Austin have discovered a new source for biofuels in cyanobacteria, which can be grown on non-agricultural lands using salty water. The microbe produces cellulose and sugars that can be converted into ethanol, offering a potential alternative to traditional sources such as corn and sugarcane.

SourceUniversity of Texas at Austin·JournalCellulose·DateApr 23, 2008

Researchers 'look into' plant cells to increase ethanol yields

Scientists have found that pretreating corn plant tissue with hot water increases ethanol yields by exposing minute pores of the cell walls, allowing enzymes to break down cellulose more efficiently. This discovery could lead to a viable method for large-scale production of cellulosic ethanol, a key component of green fuels.

SourcePurdue University·JournalBiotechnology and Bioengineering·DateApr 26, 2007