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:3/30/2017)... , March 30, 2017 The research ... system for three-dimensional (3D) fingerprint identification by adopting ground breaking 3D ... a new realm of speed and accuracy for use in identification, ... an affordable cost. ... ...
(Date:3/28/2017)... , March 28, 2017 ... Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video ... and Region - Global Forecast to 2022", published by ... in 2016 and is projected to reach USD 75.64 ... 2017 and 2022. The base year considered for the ...
(Date:3/24/2017)... Research and Markets has announced the addition of the "Global ... to 2025" report to their offering. ... The Global Biometric Vehicle Access System Market ... the next decade to reach approximately $1,580 million by 2025. ... for all the given segments on global as well as regional ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... 2017 , ... A new study published in Fertility and ... in vitro fertilization (IVF) transfer cycles. The multi-center matched cohort study ... comparing the results from the fresh and frozen transfer cohorts, the authors of ...
(Date:10/10/2017)... ... October 10, 2017 , ... For the second time in ... STEM Mentoring Award. Representatives of the FirstHand program travelled to Washington, D.C. Tuesday, ... , US2020’s mission is to change the trajectory of STEM education in America ...
(Date:10/10/2017)... CALIFORNIA (PRWEB) , ... October 10, 2017 , ... ... technological innovation and business process optimization firm for the life sciences and healthcare ... BoxWorks conference in San Francisco. , The presentation, “Automating GxP Validation for ...
(Date:10/9/2017)... (PRWEB) , ... October 09, 2017 , ... At its ... Dr. Christopher Stubbs, a professor in Harvard University’s Departments of Physics and Astronomy, has ... was a member of the winning team for the 2015 Breakthrough Prize in Fundamental ...
Breaking Biology Technology: