Scientists convert plant matter into chemicals
San Francisco, May 20: A team led by an Indian-origin scientist from Sandia National Laboratories in California has demonstrated a new technology based on bio-engineered bacteria that can make it economically feasible to produce chemicals from renewable plant sources.
The technology converts tough plant matter, called lignin, for wider use of the energy source and making it cost competitive.
"For years, we have been researching cost-effective ways to break down lignin and convert it into valuable platform chemicals," Sandia bioengineer Seema Singh said.
"We applied our understanding of natural lignin degraders to E. coli because that bacterium grows fast and can survive harsh industrial processes," she added in the work published in the "Proceedings of the National Academy of Sciences of the United States of America".
Lignin is the component of plant cell walls that gives them their incredible strength. It is brimming with energy but getting to that energy is so costly and complex that the resulting biofuel can't compete economically with other forms of transportation energy.
Once broken down, lignin has other gifts to give in the form of valuable platform chemicals that can be converted into nylon, plastics, pharmaceuticals and other valuable products.
Singh and her team have solved three problems with turning lignin into platform chemicals: cost, toxicity and speed.
Engineering solutions like these, which overcome toxicity and efficiency issues have the potential to make biofuel production economically viable.
"Now we can work on producing greater quantities of platform chemicals, engineering pathways to new end products, and considering microbial hosts other than E. coli," Singh said.
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19-year-old girl in Belthangady who attempted suicide dies in Mangaluru hospital
Belthangady: A 19-year-old girl from Belalu village, who had attempted suicide at home by consuming poison, has reportedly died at a hospital in Mangaluru.
The deceased, Rama, was the daughter of Dinesh and Revathi Naik of Mayada Balemandikallu in Belalu village, Belthangady taluk, and a II PUC student at Vamapadavu College.
Rama’s attempt to commit suicide is being linked to personal matters, as she is known to have loved a youngster.
On the night of April 19, she reportedly consumed rat poison at her residence and was admitted to a hospital in Mangaluru for treatment. After 10 days of treatment, she died on April 30 after failing to respond to medical care.
A case has been registered at the Dharmasthala Police Station, and investigation is underway.
(Assistance for overcoming suicidal thoughts is available on the state’s health helpline 104, Tele-MANAS 14416.)
