Navigation Links
Bacteria from Salar de Uyuni in Bolivia conceal bioplastic
Date:7/10/2013

In Bolivia, in the largest continuous salt desert in the world, researchers from the Polytechnic University of Catalonia have found a bacterium that stores large amounts of PHB, a prized polymer. This biodegradable plastic is used by the food and pharmaceutical industries, for example to produce nanospheres to transport antibiotics.

In the quest for natural polymers to substitute for petroleum-based plastics, scientists have recently discovered that a microorganism in South America produces poly-beta-hydroxybutyrate (PHB), a biodegradable compound of great utility for the food, pharmaceutical, cosmetic and packaging industries.

The bacterium in question is Bacillus megaterium Uyuni S29, a strain that produces the largest amount of polymer of the genus. It has been found in the water 'eyes' of the famous Salar de Uyuni or Uyuni salt flat, in Bolivia.

"These are very extreme environments, which facilitate intracellular accumulation of PHB, a reserve material used by bacteria in times when nutrients are scarce," Dr Marisol Marqus, microbiologist at the Polytechnic University of Catalonia (UPC, Spain), explains to SINC.

Scientists from the UPC and the Graz University of Technology in Austria have successfully made the bacillus produce significant quantities of the compound in the laboratory in cultivation conditions similar to those used in industry. The technique is published in the journals Food Technology & Biotechnology and Journal of Applied Microbiology.

"The resulting biopolymer has thermal properties different from conventional PHBs, which makes it easier to process, independently of its application," Marqus goes on.

The researcher recognises that the costs of producing biopolymers are, in general, "still high and not competitive when compared with conventional polymers, although progress is being made in this regard."

The team has managed to reduce PHB's high molecular weight for the first time, using lipase enzymes, which break up fats, as well as using the biopolymer to form nano- and microspheres loaded with antibiotic to control their spread throughout the organism.


'/>"/>

Contact: SINC
info@agenciasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert

Related biology news :

1. CWRU dental researchers NIDCR grant targets oral bacteria and fetal death link
2. Genomes of cholera bacteria from Haiti confirm epidemic originated from single source
3. UT study: Chemical in antibacterial soaps may harm nursing babies
4. Spinning up antibacterial silver on glass
5. Bacterial DNA may integrate into human genome more readily in tumor tissue
6. HIV-derived antibacterial shows promise against drug-resistant bacteria
7. Discovery of how a gene that regulates factors involved in bacteria pathogenicity acts
8. Metabolic model of E. coli reveals how bacterial growth responds to temperature change
9. New screening technique paves the way for protein drugs from bacteria
10. Resistance to last-line antibiotic makes bacteria resistant to immune system
11. Bacteria use hydrogen, carbon dioxide to produce electricity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/6/2017)... Jan. 5, 2017  Delta ID Inc., a leader ... technology for automotive at CES® 2017. Delta ID has ... to demonstrate the use of iris scanning as a ... the driver in a car, and as a way ... experience. Delta ID and Gentex will demonstrate ...
(Date:1/3/2017)... , Jan. 3, 2017 Onitor, provider ... introduction of Onitor Track, an innovative biometric data-driven program ... showcasing this month at the 2017 Consumer Electronics Show ... In the U.S., the World Health Organization ... than two-thirds of adults who are overweight or obese. ...
(Date:12/20/2016)... Dec. 20, 2016 The rising popularity ... and leasing is stoking significant interest in keyless ... technology, Bluetooth low energy (BLE), biometrics and near-field ... next wave of wireless technologies in the automotive ... to advanced access systems opens the market to ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... GAITHERSBURG, Md. , Jan. 19, 2017 ... Inc., a privately-held immunotherapeutics company targeting infectious diseases, ... for the merger of PharmAthene and Altimmune in ... Venture Fund, HealthCap, Truffle Capital and Redmont Capital. ... diversified immunotherapeutics company with four clinical stage and ...
(Date:1/19/2017)... ... January 18, 2017 , ... ... of Health (NIH) to update its Data Sharing Policy. Specifically, the nation’s leading ... grant applications subject to the existing policy. AMIA recommended that NIH earmark funding ...
(Date:1/19/2017)... ... January 19, 2017 , ... DaVita Clinical Research ... drug and device development, and Prism Clinical Research , a leader in ... Verified Clinical Trials (VCT) has been selected by both companies as ...
(Date:1/19/2017)... Acupath Laboratories, Inc., a leading provider of ... Executive Committee that will guide the company,s vision and ... Cucci , a 15-year veteran of the anatomic pathology ... to Chief Sales Officer .  Prior to joining ... sales leadership roles at several leading lab industry organizations ...
Breaking Biology Technology: