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Key enzyme for production of second-generation ethanol discovered in Brazilian Amazon
Publicado em 18 maio 2018
Researchers have discovered a novel enzyme (a ß-glucosidase) in microorganisms living in the Brazilian Amazon that could boost efficiency of the sugarcane bagasse saccharification process, which accounts for up to 50% of the global costs of cellulosic ethanol production.
The team isolated, characterized and reproduced the enzyme, proving it to be compatible with two essential stages of the production of second-generation (cellulosic) ethanol: fermentation and saccharification. If these two [...]
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Novel laser welding technique could expand use of advanced high-strength steel alloys
Publicado em 19 dezembro 2017A Brazilian researcher has developed an innovative method of laser welding at high temperatures that enhances the properties of advanced high-strength (AHS) steel for applications in the automotive and aerospace industries The automotive industry’s demand for high-performance AHS alloys has increased in recent years owing to increasingly stringent passenger safety, vehicle performance and fuel economy requirements. Characterized by improved formability and collision resilience compared to [...]ver notícia -
São Paulo study finds concentration of ultrafine particulates rose by 1/3 in switch from ethanol to gasoline
Publicado em 17 julho 2017The concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study by a Northwestern University chemist, a National University of Singapore economist and two University of São Paulo physicists. The research team also found when São Paulo drivers—some two million of them—switched back to ethanol because prices had gone down, [...]ver notícia