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:12/5/2016)... 2016  The Office of Justice Programs, National ... Scans Enhance or Replace Medico Legal Autopsies?" on ... or replacing forensic autopsies with postmortem X-ray computed ... In response to recommendations made by The National ... scans as a potential component of medicolegal death ...
(Date:11/29/2016)... , Nov. 29, 2016 BioDirection, a privately ... products for the objective detection of concussion and other ... has successfully completed a meeting with the U.S. Food ... blood test Pre-Submission Package. During the meeting company representatives ... as a precursor to commencement of a planned pilot ...
(Date:11/22/2016)... According to the new market research report "Biometric ... Signature, Voice), Multi-Factor), Component (Hardware and Software), Function (Contact and Non-contact), Application, ... is expected to grow from USD 10.74 Billion in 2015 to reach ... and 2022. Continue Reading ... ...
Breaking Biology News(10 mins):
(Date:12/7/2016)... ANN ARBOR, Mich. , Dec. 7, 2016 ... breakthrough immune modulatory medicines, announced today the initiation of ... therapeutic candidate, LYC-30937- E nteric C oated, in ... disease that is estimated to affect as many as ... , with approximately 1.5 - 3 million cases being ...
(Date:12/7/2016)... ... December 07, 2016 , ... ... for SmartBiome -- a novel metagenomic deep-sequencing research platform. SmartBiome combines the ... of hundreds of different genes. The selective early access program is open ...
(Date:12/6/2016)... ... December 06, 2016 , ... The ... asking the Federal Drug Administration (FDA) to consider OA as a serious disease. ... concerned about the growing population of OA patients, many of whom may experience ...
(Date:12/6/2016)... , December 6, 2016 According to a ... Microneedle), Material (Polymer, Glass, Silicon), Application (Genomics, Proteomics, Capillary Electrophoresis, POC, ... MarketsandMarkets, the global market is projected to reach USD 8.78 Billion ... of 19.2% during the forecast period (2016 to 2021). ... ...
Breaking Biology Technology: