Waste paper could make summer grilling more environmentally friendly
2015-08-26
(Press-News.org) Summertime is waning, and that means the end of backyard barbecues is almost upon us. That also means an end to dousing charcoal briquettes with lighter fluid. Reducing the use of lighter fluid might not be a bad thing, as many of those products are made from crude oil and emit potentially harmful compounds when lit. Now, researchers report in ACS Sustainable Chemistry & Engineering that they developed a waste-paper-based, environmentally friendly and sustainable alternative.
Igniting fires has been a keystone to human civilization. Ancient communities used plant and animal fats for both illuminating the night and cooking their meals. For centuries, people have started fires with vegetable oils and lard. Other examples of long-used igniting fluids are kerosene and paraffin oil. Nowadays, people primarily use electricity for lighting and often pour on petroleum-based lighter fluids to start charcoal grills and wood fires. In an effort to move toward a more sustainable type of fluid, as well as to mitigate the potential harmful effects of currently available products, István T. Horváth and colleagues sought an alternative.
The researchers started with waste paper and newsprint and, through a multistep process, converted the materials into a compound called gamma-valerolactone (GVL). The team demonstrated that GVL can safely start charcoal grills and can light glass lamps without forming smoke or odors. They say that because GVL is renewable and nontoxic, it could someday be a sustainable, safer alternative fluid for lighting coals at neighborhood cookouts.
INFORMATION:
The authors acknowledge funding from the City University of Hong Kong, the Innovation and Technology Fund of the Government of Hong Kong, the Hungarian Scientific Research Fund, and the Hungarian Academy of Sciences.
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 158,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.
To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.
Follow us: Twitter Facebook
ELSE PRESS RELEASES FROM THIS DATE:
2015-08-26
As Tropical Storm Ericka continued moving toward the Lesser Antilles, NASA's Aqua and other satellites were gathering data. Satellite imagery showed strong thunderstorms wrapped around Erika's center.
Infrared data, such as that gathered by the Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite is used to determine cloud top temperature. The colder the cloud tops, the higher they are in the atmosphere, and they are usually stronger. Cloud tops around Erika's center were near -63F/-53C, indicating strong thunderstorms.
A Tropical Storm ...
2015-08-26
Individuals previously diagnosed with heart disease may be less likely to experience heart failure, heart attacks, or stroke, or to die from these events, if they have higher blood levels of two very closely related proteins, according to a new study led by a UC San Francisco research team.
One of these proteins, known as GDF11, has attracted great interest since 2013, when researchers showed that it could rejuvenate old mice. Based on these findings, scientists have speculated that drugs that increase GDF11 levels might reverse physiological manifestations of aging that ...
2015-08-26
Researchers from the University of Birmingham have shown that drinking 500ml of water at half an hour before eating main meals may help obese adults to lose weight. They believe that the simple intervention could be hugely beneficial, and be easily promoted by healthcare professionals and through public health campaigns.
Obese adult participants were recruited from general practices and monitored over a 12 week period.
Each of the participants, all adults with obesity, were given a weight management consultation, where they were advised on how to adapt their lifestyle ...
2015-08-26
PITTSBURGH, Aug. 26, 2015 - Obese women are nearly twice as likely as their lean counterparts to have stillborn babies for several specific, potentially preventable medical reasons, a new University of Pittsburgh Graduate School of Public Health analysis reveals.
Placental diseases and hypertension were the most common causes of stillbirth among obese women, according to the study, published online and scheduled for the October issue of the American Journal of Clinical Nutrition. The research was supported by the National Institutes of Health (NIH).
"We've known for ...
2015-08-26
A group of intrepid Israeli researchers recently went back to the dawn of the Stone Age to make lunch.
Using 12,500-year-old conical mortars carved into bedrock, they reconstructed how their ancient ancestors processed wild barley to produce groat meals, as well as a delicacy that might be termed "proto-pita" - small loaves of coal-baked, unleavened bread. In so doing, they re-enacted a critical moment in the rise of civilization: the emergence of wild-grain-based nutrition, some 2,000 to 3,000 years before our hunter-gatherer forebears would establish the sedentary ...
2015-08-26
Some dying stars suffer from 'irregular heartbeats', research led by astronomers at the University of Warwick has discovered.
The research confirms rapid brightening events in otherwise normal pulsating white dwarfs, which are stars in the final stage of their life cycles.
In addition to the regular rhythm from pulsations they expected on the white dwarf PG1149+057, which cause the star to get a few percent brighter and fainter every few minutes, the researchers also observed something completely unexpected every few days: arrhythmic, massive outbursts, which broke ...
2015-08-26
Computing --the creation of supercomputers, above all-- enables scientists and engineers to analyse highly complex physical processes using simulation techniques. In this case, researchers in the UPV/EHU's Department of Computer Architecture and Technology and the Department of Materials Physics are collaborating with researchers from various universities (including the Universidade de Coimbra, Universitat de Barcelona, Lawrence Livermore National Laboratory, Martin-Luther-Universität Halle-Wittenberg, University of Liege) to analyse the photosynthesis process basing ...
2015-08-26
(PHILADELPHIA) -- Alternative medicines are widely thought to be at least harmless and very often helpful for a wide range of discomforts and illnesses. However, although they're marketed as "natural," they often contain active ingredients that can react chemically and biologically with other therapies. Researchers performed a comprehensive review of all of the medications taken by senior oncology patients and found that as 26 percent were using complementary or alternative medicines (CAM), in a report published August 12th, in the Journal of Geriatric Oncology.
"Currently, ...
2015-08-26
(Boston)--Educating clinicians on how to safely prescribe opioids can help decrease opioid misuse among chronic pain sufferers.
These findings, which appear online in the journal Pain Medicine, confirm that education can empower clinicians to make more informed clinical decisions about initiating, continuing, changing or discontinuing opioids for patients suffering from chronic pain based on a careful benefit versus risk/harm assessment.
Chronic pain affects approximately 100 million people in the U.S. making it one of the most common reasons patients seek medical ...
2015-08-26
The great escape: why awareness of our own mortality can be bad for our health
People with low self-esteem use a variety of escape mechanisms to avoid thinking about their own mortality, new research reveals.
Researchers led by Dr Arnaud Wisman, of the University of Kent's School of Psychology, found evidence in five studies that people with low self-esteem respond to reminders of their own mortality by directing their focus away from the 'self'.
The research found an empirical and causal link between people with low self-esteem having unconscious concerns about ...
LAST 30 PRESS RELEASES:
[Press-News.org] Waste paper could make summer grilling more environmentally friendly