Euro Fed Lipid

Euro Fed Lipid Newsletter November 2011: Microbial Lipids -  Diversity in Structure and Function

Dear Reader,
The view on the general roles and biological functions of lipids is changing rapidly. Although lipids have long been recognized as building blocks of biological membranes, they are no longer considered static structural components of lipid bilayers but are recognized as important dynamic modulators of the folding, organization, structure and function of membrane proteins as well as proteins reversibly interacting with membranes. Recent advances in lipid analysis have revealed an impressive structural complexity among membrane and storage lipids as well as novel metabolites and pathways. This diversity, collectively called the lipidome, may equal or exceed that of the proteome, underlining the importance to investigate cellular processes involved in lipid homeostasis.
 
Microorganisms have been used for a long time as model systems to study biochemical, cell biological and molecular biological processes to define general principles and concepts relevant to pro- and eukaryotic organisms. The advantages of microbial systems are obvious: microorganisms are, in general, easy to handle and can be used from small scale to industrial level. In addition, the genomes of many microorganisms have been sequenced, allowing the use of modern functional genomics. Furthermore, for many microorganisms, mutant cells lacking certain genes, or pathways, involved in lipid metabolism are often available, making these systems ideal to study lipid biosynthesis, turnover, and degradation.
 
The points illustrated above demonstrate the importance of lipid research to understand biological processes and point out advantages of using microorganism for such studies. However, although the area of lipid research has recently gained access to many research conferences focusing on selected organisms, or processes, conferences specifically addressing lipid research of microorganisms have rarely been organized in the past. The workshop "Microbial Lipids: Diversity in Structure and Function" (16-19 May 2012, Bern, Switzerland) will focus on bacterial lipids, lipid topology, membrane trafficking, mitochondrial lipids, lipid-mediated signaling and analytical techniques. The meeting will be organized to provide optimal interactions between leading scientists from different fields and participants, in particular young scientists.
 

This conference represents the second event of a (hopefully) continuing series focusing on central aspects of lipids in cell biology. The first workshop entitled "Microbial Lipids: From Genomics to Lipidomics" was organized by Prof. Günther Daum (University of Graz, Austria) and took place in May 2010 in Vienna.
 
On behalf of the organizing committee, I'd like to kindly invite you to support this initiative by attending the conference and presenting your latest results in Bern. Details at
http://www.eurofedlipid.org/meetings/bern2012


Peter Bütikofer
Peter Bütikofer
University of Bern, Switzerland



Euro Fed Lipid Congress 2012: Table Top Exhibition




10th Euro Fed Lipid Congress
23-26 September 2012, Cracow, Poland
Fats, Oils and Lipids:
From Science and Technology to Health

The submission of lecture and poster abstracts is open!
Deadline for lectures is 9 March 2012



Table Top Exhibition

In order to allow the industry to present its latest technologies and services, Euro Fed Lipid is offering to rent a table top at the Euro Fed Lipid congress in Cracow.

This conference also offers a good forum for exchanging ideas and remaining up-to-date on new and future developments and furthermore gives the industry the opportunity to become scientifically more visible.  

React fast as table tops are limited! Early deciders will be visible longer on the congress webpage.

If you want to present your company in Cracow, Poland and use this unique opportunity, please download the announcement/ registration form (.pdf)

     Poster Cracow

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Cracow: The Jagiellonian University



(from Wikipedia)

The Jagiellonian University was established in 1364 by Casimir III the Great. It is the oldest university in Poland, the second oldest university in Central Europe and one of the oldest universities in the world.

King Casimir provided funding for one chair in liberal arts, two in Medicine, three in Canon Law and five in Roman Law, funded by a quarterly payment taken from the proceeds of the royal monopoly on the salt mines at Wieliczka. The Cracow Academy's development stalled upon the death of King Casimir, but the institution was re-founded in 1400 by King Wladyslaw Jagiello and his wife Saint Jadwiga, the daughter of the King of Hungary.

The queen donated all of her personal jewelry to the academy, allowing it to enrol 203 students. The faculties of astronomy, law and theology attracted eminent scholars, among them Albert Brudzewski, who from 1491 to 1495 was one of Nicolaus Copernicus's teachers. The university was the first university in Europe to establish independent chairs in Mathematics and Astronomy.

As of 2008, the university has 52,445 students and 3,657 academic staff. Programmes of study are offered in 48 disciplines and 93 specialisations.

The university's Jagiellonian Library is one of Poland's largest, with almost 6.5 million volumes. It has a large collection of medieval manuscripts,including Copernicus' De Revolutionibus and the Balthasar Behem Codex. The library also has an extensive collection of underground political literature from Poland's period of Communist rule between 1945 and 1989.

Collegium Novum
Collegium Novum, Source: Wikipedia, Author: Andrzej Barabasz (Chepry)


University
Collegium Majus, Source Wikipedia, Author: Nirm11k


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DGF Rapeseed Oil Medal 2011/2012



The DGF Rapeseed Oil Medal will be awarded for 2011/2012 for the 6th time by the German Society of Fat Research (DGF) for flawless virgin rapeseed oil, making it the oldest and most trusted seal of quality of this type.

Here, the DGF is in cooperation with the international gourmet-magazine "Der Feinschmecker" as press partner. and with the German Association of Ecotrophologists (VDOe).

This year, 40 oils from different countries have been submitted to be evaluated
by a trained sensory panel and awarded in compliance with the quality criteria of the DGF Rapeseed Oil Medal. The award winners will be presented their award on 21 January 2012 at the stage of the the German Federal Ministry of Food, Agriculture and Consumer Protection during the "International Green Week" in Berlin, the world's biggest fair for food, agriculture and horticulture.

Winners will be allowed to place the Medal on their winning oil for the duration of one year.


Rapsoelmedaille


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EJLST: Highlights this month



Oxidative stability of 70% fish oil-in-water emulsions: Impact of emulsifiers and pH
Anna Frisenfeldt Horn, Nina Skall Nielsen, Ulf Andersen, Louise Helene Søgaard, Andy Horsewell, Charlotte Jacobsen
The objective of this study was to evaluate the protective effects of five different emulsifiers on lipid oxidation in 70% fish oil-in-water emulsions to be used as delivery systems for long chain polyunsaturated omega-3 fatty acids to foods. The emulsifiers were either phospholipid (PL) based or protein based. The PL-based emulsifiers were soy lecithin and two milk PL concentrates (with either 20 or 75% PL). The protein-based emulsifiers were whey protein isolate and sodium caseinate. Lipid oxidation was studied at two pH values (pH 4.5 and 7.0) and results were compared to lipid oxidation in neat fish oil. Lipid oxidation was followed by determination of peroxide values and volatile oxidation products. Emulsions were furthermore imaged by confocal and cryo-scanning electron microscopy. Results showed that.... Read more

Water-soluble omega-3: A concept for purification of fish oil and nutraceuticals?
Hilde Borhaug, Mette Kristensen, Bjarne Brudeli, Per Christian Sontum, Jo Klaveness, Pål Rongved
There is a need for improved processes for preparation of omega-3 PUFA formulations having a high content of PUFA, low levels of persistent environmental pollutants (EPs), acceptable oxidation stability and if possible, can be formulated as a powder. Using N-methyl glucamine (meglumine), which forms water-soluble omega-3 salts, an extraction process was developed that for the first time removed the EPs present in the starting material (commercially available cod liver oil added fish oil, CLO-FO). GC/high-resolution MS (GC-HRMS) showed levels of three common EPs that were below LOQ. Further, the fatty acid salts isolated were enriched in omega-3 and appeared as water-soluble white powders. The overall process increased the content of omega-3 by >70% compared with CLO-FO. The content of saturated fatty acids was reduced from 12.8 ± 0.6 to 2.1 ± 0.1%. In spite of using inert conditions during preparation, the oxidative deterioration was significant. When this issue is resolved, the powder may be further developed for use in tablets or other nutritional and health products.
Read more



EJLST


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Congresses, Meetings, Symposia and Workshops



2012:

For more upcoming events until 2017 please see the Euro Fed Lipid congress calendar.







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Germany
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Geschaeftsfuehrer: Dr. Frank Amoneit
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