HOME >> BIOLOGY >> NEWS
Researchers from the UGR use a bacterium to obtain biopreservatives from food

This release is also available in Spanish.

The research group "Estudio de sustancias antagonistas producidas por microorganismos" (Antagonistic substances produced by microorganisms), part of the Microbiology Department of the University of Granada (Universidad de Granada [http://www.ugr.es]), has succeeded in isolating enterocin AS-48, which could have a medium-term use as food biopreservative. This represents a significant advance, given that biopreservation is an innovative method in food-preservation systems based on the use of microorganisms or their metabolic products to inhibit or destroy undesirable microorganisms.

Marina Snchez Hidalgo, member of the research group and author of the doctoral thesis entitled 'Caracterizacin de variantes de la enterocina AS-48 obtenidas mediante mutagnesis dirigida' (Characterization of enterocin AS-48 variants via site-directed mutagenesis), explains that AS-48 is a bacteriocin (protein substance with antimicrobial activity) produced by Enterococcus faecalis S-48. "The bacteriocin is characterized by its circular structure that is, because of the joining of its ends contrary to most of proteins, which have a beginning and an end." AS-48 is very stable with respect to pH and temperature and has a broad action spectrum against numerous bacteria, including pathogenic bacteria transmitted by food, "which makes it a suitable molecule to use as a biopreservative."

The research carried out at the UGR will complete the information concerning the way that bacteriocins act on bacterial membranes and will also help in designing antimicrobial molecules with new characteristics. "Our work," states Marina Snchez, "has determined which AS-48 amino acids are essential for membranestability and biological activity, and it has also helped us understand how this molecule permeabilizes bacterial
'"/>

Contact: Marina Snchez Hidalgo
marinash@ugr.es
34-958-243-184
Universidad de Granada
17-Apr-2007


Page: 1 2 3

Related biology news :

1. Researchers find pathway that controls cell size and division
2. Researchers watch antibiotics, bacteria meet at atomic level
3. Researchers discover gene responsible for Restless Legs Syndrome
4. Researchers witness natural selection at work in dramatic comeback of male butterflies
5. Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
6. Researchers use new approach to predict protein function
7. Researchers probe risks, benefits of folic acid fortification
8. Researchers identify genetic mutation that may alter tumor cell proliferation
9. Researchers discover method for identifying how cancer evades the immune system
10. Researchers use adult stem cells to create soft tissue
11. Researchers find gene that spurs development of the epididymis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/2/2017)... Summary This report provides all the information ... partnering interests and activities since 2010. Download the ... Deals and Alliance since 2010 report provides an in-depth ... world,s leading life sciences companies. On demand ... of the most up to date deal and company ...
(Date:2/28/2017)... 2017   Acuant , a leading provider of ... enhancements to new and core technologies building upon the ... mobile and desktop Acuant FRM TM facial recognition ... real time manual review of identity documents by accredited ... fastest and most accurate capture software to streamline workflows ...
(Date:2/26/2017)... 2017  Securus Technologies, a leading provider of ... safety, investigation, corrections and monitoring, announces the appointment ... "Too often, too many offenders return to ... are trying to tackle this ongoing problem and ... family members. While significant steps are underway, Securus continues ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... (PRWEB) , ... March 28, 2017 , ... ... at a Marketing Roundtable on March 22 in Philadelphia. The event was offered ... , The Marketing Roundtable featured breakout groups and interaction with speakers ...
(Date:3/28/2017)... WASHINGTON , March 28, 2017  (AACR17, ... single-cell sequencing during the American Association for Cancer Research ... Center in Washington, D.C. , April ... gene expression of thousands of cells at the individual ... Experts on-hand at AACR to discuss expanded ...
(Date:3/28/2017)... Dr. Chris Yu , Chief ... Anpac Bio-Medical Science Company , announced this week ... and reporting over 40,000 cases worldwide of the ... liquid biopsy tests. Described as "game ... Anpac Bio,s CDA medical devices and technology effectively ...
(Date:3/28/2017)... , March 28, 2017 ... and unpredictable sector due to the scientifically intensive ... include medical, agricultural, environmental, and industrial. In today,s pre-market ... Portola Pharmaceuticals Inc. (NASDAQ: PTLA), OvaScience Inc. (NASDAQ: ... Therapeutix Inc. (NASDAQ: OCUL ). Learn ...
Breaking Biology Technology:
Cached News: