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:2/2/2017)... Feb. 2, 2017  EyeLock LLC, a market leader ... white paper " What You Should Know About Biometrics ... ensuring user authenticity is a growing concern. In traditional ... users. However, traditional authentication schemes such as username/password suffer ... Biometric authentication offers an elegant solution to the problem ...
(Date:1/31/2017)... CAMBRIDGE, Mass. , Jan. 31, 2017 /PRNewswire-USNewswire/ ... develop novel therapies for the treatment of bacterial ... generation set of antibacterial candidates from Pro Bono ... the increased prevalence of multi-drug resistant forms of ... by Cantab Anti Infectives Ltd, a PBB group ...
(Date:1/26/2017)...  Acuity Market Intelligence today released the 2017 ...  Acuity characterizes 2017 as a "breakout" year for ... a new understanding of the potential benefits these ... identity are often perceived as threats to privacy ... of Acuity Market intelligence. "However, taken together these ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... ... February 24, 2017 , ... A study ... completed in an ambulatory surgery center (ASC) with satisfactory clinical and patient-reported outcomes, ... TDR studies. , Jake Lubinski, president of AxioMed, commented on the recent ...
(Date:2/24/2017)... , Feb. 24, 2017 Provectus Biopharmaceuticals, ... the "Company"), a clinical-stage oncology and dermatology biopharmaceutical ... deadline to participate in its previously announced rights ... of shares of common stock and Series C ... of listed warrants. As previously ...
(Date:2/24/2017)... N.J. , Feb. 24, 2017  Driven ... and biotechnology are now the fastest growing categories, ... Specialty Actives in Personal Care: Multi-regional Market ... research and management consulting firm Kline. ... bioprocesses that make them more effective for skin ...
(Date:2/24/2017)... Biologic Products, Inc. (NASDAQ: CBPO) ("China Biologic" or the "Company"), ... announced its financial results for the fourth quarter and fiscal ... Highlights Total sales in the fourth ... increased by 13.6% in USD terms to $77.6 million from ... Gross profit increased by 13.3% to $46.8 million from ...
Breaking Biology Technology: