Navigation Links
This microbe's for you: Brewery waste becomes scientific fodder for producing liquid biofuels
Date:2/27/2011

ITHACA, N.Y. Gaining new insight into how efficiently the microbes in large bioreactors produce methane from brewery waste, Cornell scientists hope to use their new knowledge to shape these microbial communities to produce liquid biofuels and other useful products.

The scientists Largus T. Angenent, associate professor of biological and environmental engineering, and the first author and research associate Jeffrey J. Werner, published "Bacterial Community Structures Are Unique and Resilient in Full-Scale Bioenergy Systems" (Proceedings of the National Academy of Sciences, Feb. 22, 2011.)

The scientists had access to a plethora of data, thanks to a collaboration with engineers at Anheuser-Busch InBev, which makes Budweiser beer and operates nine domestic beer breweries that treat wastewater in bioreactors. They took regular samples of bioreactor sludge from each of the facilities over the course of a year and, using state-of-the-art genome sequencing software, they analyzed more than 400,000 gene sequences of the microbes in the sludge.

Among the thousands of species of bacteria, the researchers identified 145 types that were unique to each of the nine facilities -- showing that each bioreactor hosted a specific microbial community. In their analysis they observed that certain types of bacteria called syntrophs had surprisingly stable populations.

"The cool thing we found was that if you're looking at these thousands of species of bacteria, it's a very dynamic system with things dying off and replacing them," Werner said. "There are certain signature populations that are resilient. Even if they get disturbed, they come right back up."

Typically inside these million-gallon bioreactor tanks, the microbial populations in the sludge interact and one of them produces methane gas. Anheuser-Busch InBev recoups 20 percent of its heat energy use through the methane produced, saving the company millions of dollars every year.

Angenent said that where the genome surveys of these microbial communities could lead is particularly exciting. Understanding their functions and how they change with environment -- be it pH or temperature, for example -- could lead to learning how to make the communities of microbes perform new functions.

In ongoing research, the Cornell engineers are looking to prevent methane production by the microbes, and instead, to shape the bacterial communities to produce carboxylates, which are a precursor to the alkanes found in fuels.

"We are going to shape these communities so they start making what we want," Angenent said.


'/>"/>

Contact: Blaine Friedlander
bpf2@cornell.edu
607-254-8093
Cornell University
Source:Eurekalert

Related biology news :

1. New Systems Biology Awards enable detailed study of microbes
2. Biosolids microbes pose manageable risk to workers
3. Study helps clarify role of soil microbes in global warming
4. Evolution in action: Our antibodies take evolutionary leaps to fight microbes
5. Understanding extinct microbes may influence the state of modern human health
6. Our microbes, ourselves
7. Microbes fuel energy debate
8. Special issue of BMC Microbiology spotlights standardized language for describing microbes
9. Microbes in mud flats clean up oil spill chemicals
10. Antibiotics take toll on beneficial microbes in gut
11. Plant protein doorkeepers block invading microbes, study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/9/2016)... an innovation leader in attendance control systems is proud to announce the introduction of ... make sure the right employees are actually signing in, and to even control the ... ... ... ...
(Date:6/2/2016)...   The Weather Company , an IBM Business (NYSE: ... capability in which consumers will be able to interact with ... via voice or text and receive relevant information about the ... Marketers have long sought an advertising solution that can create ... relevant and valuable; and can scale across millions of interactions ...
(Date:5/16/2016)... , May 16, 2016   EyeLock LLC ... today announced the opening of an IoT Center of ... strengthen and expand the development of embedded iris biometric ... unprecedented level of convenience and security with unmatched biometric ... one,s identity aside from DNA. EyeLock,s platform uses video ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a leader ... “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced clinical research professionals, ... providing practical tips, tools, and strategies for clinical researchers. , “The landscape of ...
(Date:6/23/2016)... SPRING, Md. , June 23, 2016 A ... collected from the crime scene to track the criminal down. ... and the U.S. Food and Drug Administration (FDA) uses DNA ... Sound far-fetched? It,s not. The ... genome sequencing to support investigations of foodborne illnesses. Put as ...
(Date:6/23/2016)... June, 23, 2016  The Biodesign Challenge (BDC), a ... ways to harness living systems and biotechnology, announced its ... in New York City . ... students, showcased projects at MoMA,s Celeste Bartos Theater during ... , MoMA,s senior curator of architecture and design, and ...
(Date:6/23/2016)... ... 23, 2016 , ... In a new case report published today in STEM ... who developed lymphedema after being treated for breast cancer benefitted from an injection of ... dealing with this debilitating, frequent side effect of cancer treatment. , Lymphedema ...
Breaking Biology Technology: