Mostrando entradas con la etiqueta Celulosa. Mostrar todas las entradas
Mostrando entradas con la etiqueta Celulosa. Mostrar todas las entradas

domingo, 22 de julio de 2012

Biofuel from Plastic for this Young Egyptian Scientist from Alexandria

ORIGINAL:  Green Prophet

July 16th, 2012


Azza Abdel Hamid Faiad was the winner of the 2011 European Union Contest for Young Scientists for finding a new way of turning plastic into biofuel.  Image via European Commission Research
A sixteen-year-old Egyptian student, Azza Abdel Hamid Faiad from the Zahran Language School in Alexandria has identified a new low-cost catalyst which can generate biofuel by breaking down plastic waste.

The idea of breaking down plastic polymers into fuel feedstocks, the bulk raw material used for producing biofuel, is not a new idea. But Faiad has found a high yield catalyst, calcium bentonite catalyst, that breaks down plastic waste producing gaseous products like methane, propane and ethane, which are then converted into ethanol to use as biofuel.

Faiad and her mentors propose using this discovery to exploit Egypt’s high plastic consumption, which is estimated to amount to one million tons per year, and make money from recycled plastic! She calculates that this technology “can provide an economically efficient method for production of hydrocarbon fuel namely: cracked naphtha of about 40,000 tons per year and hydrocarbon gases of about 138,000 tons per year equivalent to $78 million.”

As we know plastic waste is a huge problem in the Middle East and for our oceans, but hopefully this idea will help convert the problem into a solution.

For her findings, Faiad was presented with the European Fusion Development Agreement award at the 23rd European Union Contest for Young Scientists — involving 130 competitors from 37 countries — held in Finland last year from 23t o 28 September.

Faiad is now looking to get her findings patented this year through the Egyptian Patent Office and scaling up the idea so that it can become a tangible project on the ground.

She has already garnered interests from the Egyptian Petroleum Research Institute.

Out of the six projects in the environmental section of the contest, three came from Egypt.

Digesting paper with termites?
Aside from Faiad, two other young Egyptian scientists Hassan Ahmed and Yomna Yasser Mohamed, proposed interesting solutions to environmental issues. Hassan Ahmed looked at managing paper product waste through termite digestion; the paper is digested by the termites which then enrich the soil with potassium, phosphor and nitrogen and can be used as fertilizers, the termites also produce hydrogen which can be used as a renewable source of energy.

Jatropha plants for biofuel.  Image of jatropha plant from Shutterstock
Yasser Mohamed’s project instead looked at producing a clean and green source of energy that could be manufactured locally in poor rural areas in Egypt. The project selected a plant which is not linked to the food chain, the jatropha plant, to investigate whether it’s oil, methanol, and KOH, which are blended to make bio-diesel, could be produced using different parts of the plant.

Will young Egyptian scientists continue to be at the forefront of environmental solutions? Let’s hope so.


martes, 10 de julio de 2012

Una nueva especie productora de nanocelulosa bacteriana ha sido caracterizada por investigadores de la UPB

ORIGINAL: Universia


Desde hace varios años un Grupo de investigadores de la UPB se dio a la tarea de buscar nuevas fuentes productoras de nanocelulosa tanto vegetal como bacteriana.

El esfuerzo diario con el apoyo de entidades locales e internacionales como los laboratorios de microbiología de la Escuela de Ciencias de la Salud y el laboratorio de Ingeniería Agroindustrial de la Universidad Pontificia Bolivariana, The Centre de Recherches sur les Macromolécules Végétales (CERMAV)-Francia y The BCCM/LMG Bacterial Collection Ghent University-Bélgica, permitieron caracterizar una cepa nativa colombiana aislada desde la Central Minorista de la Ciudad de Medellín. El principal hallazgo es la de tener una nueva especie perteneciente al genero Gluconacetobacter que no había sido identificada antes en el mundo.

Por la importancia del resultado y como un homenaje a la ciudad de Medellín el microrganismo ha sido denominado Gluconacetobacter Medellinensis. Estos resultados son avalados al ser aceptada la publicación en el International Journal of Systematic and Evolutionary Microbiology (IJSEM) 


publicación de la sociedad de microbiología general (SGM) quién es el principal foro para la publicación de nuevos taxones de bacterias y levaduras, además de ser el journal oficial de registro de nombres de las bacterias del Comité Internacional de Sistemática de Procariotas (ICSP) de la Unión Internacional de Sociedades de Microbiología (IUMS).

Esta investigación ha sido realizada por la estudiante de doctorado Cristina Castro Herazo con el acompañamiento de Piedad Gañán Rojo, Robin Zuluaga Gallego, Lina María Vélez y de la microbióloga Gloria Caro Muñoz. La nanocelulosa obtenida por esta nueva especie se viene utilizando en diferentes proyectos como la regeneración de tejidos y tratamiento de heridas crónicas, fortificación de alimentos, liberación controlada de medicamentos, refuerzo en materiales compuestos, membranas para el tratamiento de aguas y prendas de vestir.