Navigation Links
New DNA test identifies ingredients in foods
Date:3/27/2013

Almost all foodstuffs contain the genetic material of those animal and plant species that were used in their preparation. Scientists at the Institute of Molecular Genetics, Genetic Security Research and Consulting at Johannes Gutenberg University Mainz (JGU) have developed a novel screening procedure that provides for highly sensitive, quantifiable analysis of animal, plant, and microbial substances present in foodstuffs. For this, the researchers have adapted the latest techniques of DNA sequencing, which are otherwise currently employed in human genetics to unravel the genetic information of thousands of patients.

"The innovative aspect in comparison with conventional DNA detection methods such as polymerase chain reaction, or PCR for short, is that by means of bioinformatic analysis of all biological DNA data available worldwide we can identify the presence of material from species that we would not otherwise expect. And, using a simple digital method of counting short snippets of DNA, we will also probably be able to determine the relative incidence of individual species-related material more precisely than was previously the case," explained molecular geneticist Professor Dr. Thomas Hankeln, who developed the method in collaboration with bioinformaticist Professor Bertil Schmidt, Ph.D. and colleagues at the German and Swiss food control authorities.

In pilot studies, the researchers were able to use the new DNA method to detect the presence of a 1% content of horse meat in products and to determine the actual amount with a high level of precision. The Mainz researchers even found slight traces of the DNA of added mustard, lupin, and soy in a test sausage prepared for calibration purposes, something that could also be of interest with regard to allergy testing of foods.

Because of its potential, the method dubbed 'All-Food-Seq' by its developers has already attracted the attention of food inspection experts. "This method is very interesting in connection with efforts to promote the molecular traceability of food," said Hermann Broll of the German Federal Institute for Risk Assessment in Berlin and Dr. Ren Kppel of the Zurich Cantonal Laboratory in Switzerland. The method developed by the Mainz scientists is thus to be validated in comparison with conventional detection techniques in the near future.


'/>"/>

Contact: Thomas Hankeln
hankeln@uni-mainz.de
49-613-139-23277
Johannes Gutenberg Universitaet Mainz
Source:Eurekalert

Related biology news :

1. Plant DNA speaks English, identifies new species
2. 23andMe identifies 5 significant genetic associations for hypothyroidism
3. Collaborative research team identifies safe upper level for vitamin A consumption for puppies
4. UI professor identifies largest known crocodile
5. Research identifies specific bacteria linked to indoor water-damage and mold
6. Neiker-Tecnalia identifies antitumour proteins in the latex of the plant Euphorbia trigona
7. Study identifies pathway to enhance usefulness of EGFR inhibitors in lung cancer treatment
8. Study identifies how muscles are paralyzed during sleep
9. La Jolla institute identifies critical cell in fighting E. coli infection
10. BUSM study identifies receptors role in regulating obesity, type 2 diabetes
11. Research identifies mechanism responsible for eye movement disorder
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/10/2016)... India , March 10, 2016 ... a new market research report "Identity and Access Management ... & Audit, Compliance, and Governance), by Organization Size, by ... to 2020", published by MarketsandMarkets, The market is estimated ... USD 12.78 Billion by 2020, at a Compound Annual ...
(Date:3/9/2016)... March 9, 2016 This BCC Research report ... of the RNA Sequencing (RNA Seq) market for the ... instruments, tools and reagents, data analysis, and services. ... of the RNA-Sequencing market such as RNA-Sequencing tools and ... main factors affecting each segment and forecast their market ...
(Date:3/9/2016)... 9, 2016  Crossmatch ® , a leading ... today announced the addition of smart features to ... multi-factor authentication platform. New contextual and application-specific authentication ... security where it,s needed most — while minimizing ... . --> Washington, DC ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... Italy (PRWEB) , ... April 30, 2016 , ... The ... extraordinary textile design, the bioLogic team explored how bacterial properties can be applied to ... of using Natto bacteria, which move in response to humidity change. The team harvested ...
(Date:4/29/2016)... , April 29, 2016 ... Transparency Market Research "Separation Systems for Commercial Biotechnology ... Trends, and Forecast 2015 - 2023", the separation ... US$ 10,665.5 Mn in 2014 and is projected ... 2015 to 2023 to reach US$ 19,227.8 Mn ...
(Date:4/29/2016)... ... April 29, 2016 , ... Intelligent Implant Systems announced ... FDA via 510(k) for sale in the United States. These components expand the ... fusions. With one-level sales beginning in October of 2015, the company has seen ...
(Date:4/28/2016)... , April 28, 2016 ... company reports the Company,s CEO  was featured in ... Accelerators Enter When VCs Fear To Tread: ... Leader magazine is an essential business ... everything from emerging biotechs to Big Pharmas. Their ...
Breaking Biology Technology: