News tagged with cellulose
Light but stable: novel cellulose-silica gel composite aerogels
(PhysOrg.com) -- Delicate and translucent as a puff of air, yet mechanically stable, flexible, and possessing amazing heat-insulation properties—these are the properties of a new aerogel made of cellulose ...
Jan 27, 2012 |
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Chile brings fires under control as probe expands
Firefighters reported progress Wednesday in bringing under control wildfires in southern Chile that have destroyed about 45,000 hectares (112,000 acres) as a special prosecutor began investigating the source ...
Jan 04, 2012 |
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Go to work on a Christmas card
If all the UK's discarded wrapping paper and Christmas cards were collected and fermented, they could make enough biofuel to run a double-decker bus to the moon and back more than 20 times, according to the researchers behind ...
Technology / Energy & Green Tech
Dec 23, 2011 |
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Chemicals and biofuel from wood biomass
(PhysOrg.com) -- A method developed at Aalto University in Finland makes it possible to use microbes to produce butanol suitable for biofuel and other industrial chemicals from wood biomass. Butanol is particularly ...
Dec 19, 2011 |
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Bacterial filters reduce stink from big pig factories
Concentrated animal feeding operations (CAFOs) on industrial animal factories can stink up an entire county, due to ammonia, and a smorgasbord of volatile organic compounds (VOCs). Jeppe Lund Nielsen of Aalborg University, ...
Dec 16, 2011 |
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Japan's Sony generates power from paper
Japanese electronics giant Sony on Thursday revealed technology that generates electricity from shredded paper.
Technology / Energy & Green Tech
Dec 15, 2011 |
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E. coli bacteria engineered to eat switchgrass and make transportation fuels
A milestone has been reached on the road to developing advanced biofuels that can replace gasoline, diesel and jet fuels with a domestically-produced clean, green, renewable alternative.
Nov 29, 2011 |
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Mast from classic racing yacht holds one of the keys to sustainable biofuels
(PhysOrg.com) -- The mast from a classic racing yacht and samples from a Forestry Commission breeding trial have played a key role in the search for sustainable biofuels.
Nov 25, 2011 |
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A corny turn for biofuels from switchgrass
Many experts believe that advanced biofuels made from cellulosic biomass are the most promising alternative to petroleum-based liquid fuels for a renewable, clean, green, domestic source of transportation ...
Nov 18, 2011 |
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First-of-a-kind tension wood study broadens biofuels research
Taking a cue from Mother Nature, researchers at the Department of Energy's BioEnergy Science Center have undertaken a first-of-its-kind study of a naturally occurring phenomenon in trees to spur the development ...
Technology / Energy & Green Tech
Oct 25, 2011 |
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Dividing corn stover makes ethanol conversion more efficient
(PhysOrg.com) -- Not all parts of a corn stalk are equal, and they shouldn't be treated that way when creating cellulosic ethanol, say Purdue University researchers.
Oct 25, 2011 |
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Uncharted territory: Scientists sequence the first carbohydrate biopolymer
(PhysOrg.com) -- DNA and protein sequencing have forever transformed science, medicine, and society. Understanding the structure of these complex biomolecules has revolutionized drug development, medical diagnostics, ...
Oct 11, 2011 |
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U.S. unlikely to hit Renewable Fuel Standard for cellulosic biofuels: report
The biofuel industry will not be able to meet the cellulosic production requirements of the Renewable Fuel Standard without significant advancements in technology or investment, according to a National Academy of Sciences ...
Technology / Energy & Green Tech
Oct 05, 2011 |
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Orange peels could be made into biodegradable plastic
Plastic waste is one of the worst forms of trash because it takes so long to degrade, thus overflowing our landfills and polluting our oceans and waterways. But what if we could make plastic from a recycled, natural, biodegradable ...
Sep 26, 2011 |
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Pretreatment, proper harvest time boost ethanol from switchgrass
Adding a pretreatment step would allow producers to get more ethanol from switchgrass harvested in the fall, according to a Purdue University study.
Aug 31, 2011 |
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Cellulose
Cellulose is an organic compound with the formula (C6H10O5)n, a polysaccharide consisting of a linear chain of several hundred to over ten thousand β(1→4) linked D-glucose units.
Cellulose is the structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. Some species of bacteria secrete it to form biofilms. Cellulose is the most common organic compound on Earth. About 33 percent of all plant matter is cellulose (the cellulose content of cotton is 90 percent and that of wood is 50 percent).
For industrial use, cellulose is mainly obtained from wood pulp and cotton. It is mainly used to produce cardboard and paper; to a smaller extent it is converted into a wide variety of derivative products such as cellophane and rayon. Converting cellulose from energy crops into biofuels such as cellulosic ethanol is under investigation as an alternative fuel source.
Some animals, particularly ruminants and termites, can digest cellulose with the help of symbiotic micro-organisms that live in their guts. Cellulose is not digestible by humans and is often referred to as 'dietary fiber' or 'roughage', acting as a hydrophilic bulking agent for feces.
For more information about Cellulose, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
