Tag Archives: biofuels

Microalgal biofuels: Flexible bioenergies for sustainable development

aaaaaa11111Abstract – To confront energy shortage, global warming and climate changes, biofuels derived from biomass have received increasing attention from the industry, academia and governments. Of the potential sources of biofuels a most promising one is the simple photosynthetic microalgae, which can be grown in open ponds, photobioreactors and fermenters. The advantages to produce biofuels from microalgae include easy adaption to environmental conditions, high photosynthesis efficiency, high lipid content and noncompetition for farmlands. Nonetheless, the real hallmark of microalgae is the fact that these microscopic organisms can provide the biomass feedstock for the flexible production of several different types of renewable and sustainable biofuels such as biodiesel, bioethanol, biogas, biohydrogen among others via thermochemical and biochemical conversion processes. Amazingly, from a sustainability perspective the integrated algal biofuels production, where biodiesel, bioethanol and biogas are continuously produced from one biomass source, can evidently lead to an increase in the energetic productivity of the microalgal biomass, thus improving the economics of this algal biorefinery approach. Developments in several areas, such as genetic and metabolic engineering, are expected to further improve the costeffectiveness of the biofuels from microalgae in an environmentally sustainable manner.
Source: ScienceDirect, December 2, 2013
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The success of sugarcane is the fruit of pioneering science and technology, study concludes

canaBy Elton Alisson

Agência FAPESP – Brazil is recognized as the country with the world’s most efficient biofuel production, which is principally based on sugarcane. The success that the country has enjoyed in transforming this plant into a bioenergy source, however, is due more to a pioneering initiative to create an industrial system for ethanol production than the plant itself.

The system began to be developed in the 1930s when an agronomic development program that made the plant highly efficient was established. Despite these efforts, the agronomic performance of sugarcane is still below that of the other raw materials tested for this purpose over the last few years in different parts of world.

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Flightpath to Aviation Biofuels in Brazil: Action Plan

Mini 019FAPESP – The aviation industry is committed to reducing its environmental impact and has established ambitious goals to reach carbon neutral growth by 2020 and to reduce carbon dioxide emissions by 50% (from 2005 levels) by 2050. Currently, the aviation industry generates approximately 2% of man-caused carbon dioxide emissions; it is a small but growing share that is projected to reach 3% by 2030.

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First Look at Sorghum Genome May Find New Food, Fuel Uses

23The Crop Site – Patrick Brown, an assistant professor in plant breeding and genetics, said having a complete characterization of the locations (loci) affecting specific traits will speed up the adaptation of sorghum and other related grasses to new production systems for both food and fuel.

Brown is working on the project through the Energy Biosciences Institute at the U of I, hoping to use the sorghum findings as a launching pad for working with complex genomes of other feedstocks. The EBI provided the startup funding for the study.

To adapt the drought-resistant, tropical sorghum to temperate climates, Brown explained that sorghum lines were converted over the years by selecting and crossing exotic lines with temperate-adapted lines to create lines that were photoperiod-insensitive for early maturity, as well as shorter plants that could be machine-harvested. >>Continue Reading<<

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KAIST team produces gasoline using E. coli

25The Korea Herald – A group of scientists from the Korea Advanced Institute of Science and Technology has discovered a way to produce gasoline using bacteria for the first time, the school announced.

The finding, published online in the journal Nature on Sunday, could mark a step toward developing new renewable energy.

The research team led by Lee Sang-yup, a professor at the chemical and biomolecular engineering department, used Escherichia coli bacteria that naturally turn sugars into fat to convert fatty acid into oil..>>Continue Reading<<

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Brazilian group maps algal diversity in the state of São Paulo

24By Karina Toledo

Agência FAPESP – With the help of molecular techniques such as gene sequencing and DNA barcoding, scientists at the University of São Paulo (USP) are completing the most complete survey conducted to date regarding the biodiversity of red macroalgae in the state of São Paulo.

The study is being conducted under the scope of a Thematic Project led by Mariana Cabral de Oliveira of the USP Biosciences Institute.

Some of the findings were presented September 26 during FAPESP Week London. The event was held by FAPESP with support from the British Council and the Royal Society.

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Sweet hydrogen: how sugar could help satisfy the world’s energy needs

SugarThe Guardian – Hydrogen makes an extraordinarily efficient and clean fuel. Three times as energy-efficient as petrol, Nasa used it to power its space shuttles. It can be used to generate electricity and only produces water as a byproduct.

And yet, scientists are struggling to scale up hydrogen production. Ironically, given hydrogen’s green potential, the cheapest and most viable sources are hydrocarbon-based compounds such as natural gas. But liberating hydrogen from fossil fuels creates carbon emissions that outweigh any environmental advantages.

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