Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

AZTI-Tecnalia obtains isomers of conjugated linoleic acid from micro-organisms

15.12.2006
At the congress of the Grupo de Microbiología Industrial y Biotecnología Microbiana of the SEM (Sociedad Española de Microbiología) AZTI-Tecnalia has presented their research work on the production of isomers of conjugated linoleic acid from linoleic acid by using micro-organisms.

Conjugated linoleic acid is a mixture of isomers, some of which have functional properties and, thereby, are considered to be molecules of high added value. Amongst the possible isomers, the 9-cis, 11-trans 18:2 and 10-trans, 12-cis 18:2 configurations have a positive effect on the reduction of body fat and this is why they are of such interest. These fatty acids are currently produced by chemical synthesis and their addition to what are called functional foodstuffs is common due to their health-giving properties.

The aim of the research undertaken by AZTI-Tecnalia was to study the efficiency of certain lactic acid bacteria on the production of potentially functional fatty acids by means of the isomerisation of linoleic acid into its conjugated isomers. Results indicate that, amongst the lactic acid bacteria analysed, at least one of them can conjugate the double bonds of the linoleic acid, thus producing two isomers: 9-cis, 11-trans 18:2 and 9-trans, 11-trans 18:2. The transformation of the linoleic acid into its conjugates is selective when micro-organisms are employed, thus producing just two of the isomers from all those possible. The production yields obtained were low and, because of this, further research is being carried out to improve them.

In conclusion, the stereospecific production of certain conjugated isomers of linoleic acid with functional properties is possible, by using micro-organisms accepted as safe in the preparation of foodstuffs. Thus, it is to be hoped that, by means of using these micro-organisms, functional foodstuffs can be prepared without recourse to chemical synthesis.

Irati Kortabitarte | alfa
Further information:
http://www.elhuyar.com
http://www.basqueresearch.com/berria_irakurri.asp?Gelaxka=1_1&Berri_Kod=1106&hizk=I

Further reports about: AZTI-Tecnalia conjugate isomers linoleic micro-organisms

More articles from Life Sciences:

nachricht The irresistible fragrance of dying vinegar flies
16.08.2017 | Max-Planck-Institut für chemische Ökologie

nachricht How protein islands form
15.08.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

Im Focus: Scientists improve forecast of increasing hazard on Ecuadorian volcano

Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, the Italian Space Agency (ASI), and the Instituto Geofisico--Escuela Politecnica Nacional (IGEPN) of Ecuador, showed an increasing volcanic danger on Cotopaxi in Ecuador using a powerful technique known as Interferometric Synthetic Aperture Radar (InSAR).

The Andes region in which Cotopaxi volcano is located is known to contain some of the world's most serious volcanic hazard. A mid- to large-size eruption has...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

New thruster design increases efficiency for future spaceflight

16.08.2017 | Physics and Astronomy

Transporting spin: A graphene and boron nitride heterostructure creates large spin signals

16.08.2017 | Materials Sciences

A new method for the 3-D printing of living tissues

16.08.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>