New bacteria discovered in raw milk ( Raw milk is illegal in many countrie...)

New bacteria discovered in raw milk

Date:11/16/2008

Raw milk is illegal in many countries as it can be contaminated with potentially harmful microbes. Contamination can also spoil the milk, making it taste bitter and turn thick and sticky. Now scientists have discovered new species of bacteria that can grow at low temperatures, spoiling raw milk even when it is refrigerated. According to research published in the November issue of the International Journal of Systematic and Evolutionary Microbiology, the microbial population of raw milk is much more complex than previously thought.

"When we looked at the bacteria living in raw milk, we found that many of them had not been identified before," said Dr Malka Halpern from the University of Haifa, Israel. "We have now identified and described one of these bacteria, Chryseobacterium oranimense, which can grow at cold temperatures and secretes enzymes that have the potential to spoil milk."

New technologies are being developed to reduce the initial bacterial counts of pasteurized milk to very low levels. Most enzymes will be denatured at the high temperatures used during pasteurisation, which means they will stop working. However, the heat-stable enzymes made by cold-tolerant bacteria will still affect the flavour quality of fluid milk and its products. Because of this, research into cold-tolerant bacteria and the spoilage enzymes they produce is vital.

"Milk can be contaminated with many different bacteria from the teat of the cow, the udder, milking equipment and the milking environment," said Dr Halpern. "Milk is refrigerated after collection to limit the growth of microbes. During refrigeration, cold-tolerant, or psychrotolerant, bacteria that can grow at 7C dominate the milk flora and play a leading role in milk spoilage. Although we have not yet determined the impact on milk quality of C. oranimense and two other novel species (C. haifense and C. bovis) that were also identified from raw milk samples, the discovery will contribut
'/>"/>

Contact: Lucy Goodchild
press@sgm.ac.uk
44-011-898-81843
Society for General Microbiology
Source:Eurekalert

3

GOOD

Page: 1 2 3
Related biology news :

1. Shuttle brings space-grown strep bacteria back for study
2. The worlds oldest bacteria
3. Bacteria from sponges make new pharmaceuticals
4. Boston University biomedical engineers find chink in bacterias armor
5. University of Leicester scientists discover technique to help friendly bacteria
6. Spaceflight shown to alter ability of bacteria to cause disease
7. A tiny pinch from a z-ring helps bacteria cells divide
8. Legionnaires bacterial proteins work together to survive
9. Scripps research team blocks bacterial communication system to prevent deadly staph infections
10. NSF awards Stevens team $1 million for research on smart, bacteria-repellent nanohydrogels
11. Chemical compound present in detergents produce bacteria alterations in agricultural soils

Post Your Comments:

(Date:5/17/2012)... 17th 2012. Wiley-Blackwell, the scientific, technical, medical and scholarly ... announced the launch of Food Science & Nutrition ... program. The journal will provide authors with a new ... and will be published in collaboration with the Society ... Technology and other prominent societies. , Food Science ...

(Date:5/17/2012)... have opened the way for more accurate research into ... a long-held theory about how bacteria communicate with each ... Medical Sciences have shown for the first time that ... called ,quorum sensing, directly depends on the density of ... research into how to stop bacteria talking to each ...

(Date:5/16/2012)... 16, 2012 SRI Sarnoff,s Iris on ... factory certification for its interface to Lenel,s OnGuard® ... the Lenel OpenAccess Alliance Program. This certification validates ... Lenel access control systems. "SRI ... Lenel to validate the functionality of its interface ...

[0] Wiley-Blackwell launches new open-access journal: Food Science & Nutrition [0] Fighting bacteria's strength in numbers [0] SRI Sarnoff's Iris on the Move® N-Glance™ Identification System Receives Lenel Factory Certification

... at the University of Minnesota have discovered a gene that ... with age. The research was published today in the ... , Researchers in the lab of Kevin Wickman, Ph.D., ... School, removed a single gene from mice as part of ...

... Genome Institute of Singapore (GIS), a research institute ,of ... (A*STAR), and the University of California at San Francisco ... cells. , Genetic and epigenetic defects in the ... found to be abnormally activated in human malignance, play ...

... Using the same concept behind commercial breath-freshening strips, ... easier method for clinical taste testing. , Greg ... in the Biology Department of Temple,s College of ... taste strips similar to breath-freshening strips, but these ...

Other Biology News:Taking a cue from breath fresheners, researcher develops new method for taste testing 2 Taking a cue from breath fresheners, researcher develops new method for taste testing 3

U of M researchers discover gene linked to adult-onset obesity Novel therapeutic strategy for colon cancer treatment Taking a cue from breath fresheners, researcher develops new method for taste testing

(Date:5/16/2012)... 12, 2011, nearly fifteen years after she became paralyzed ... arm by thinking about moving her arm and hand ... and take a drink. That achievement is one of ... robot technology described in the May 17 edition of ... of researchers at the Department of Veterans Affairs, Brown ...

(Date:5/16/2012)... YORK, May 16, 2012 ... research report is available in its ... Industry http://www.reportlinker.com/p090668/Global-Biotechnology-Instrumentation-Industry.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=In_Vitro_ ... worldwide markets for Biotechnology Instrumentation in ... Segments: DNA Synthesizers, Protein/Peptide Synthesizers, DNA ...

(Date:5/15/2012)... Journal of Visualized Experiments ) will publish two articles ... Reduction Agency (DTRA). JoVE is proud ... Schafmeister and State University of New York Buffalo,s Dr. ... support of scientists conducting research for DTRA has significant ... defense threats. DTRA exists to safeguard America and its ...

(Date:5/15/2012)... 15, 2012 Reportlinker.com announces ... is available in its catalogue: , ... Assessment and Market Forecast to 2019 ... Neuroendocrine Carcinoma Therapeutics - Pipeline ... , Summary GlobalData, the industry ...

[0] People with paralysis control robotic arms to reach and grasp using brain computer interface [0] Global Biotechnology Instrumentation Industry [0] JoVE partners with US government to publish cutting-edge defense research [0] Neuroendocrine Carcinoma Therapeutics - Pipeline Assessment and Market Forecast to 2019

... PET Systems(R), a company,specializing in organ-specific high resolution ... Medicine,s Annual Meeting, new clinical,data using the PEM ... Solo II is a commercially available, FDA cleared ... known as positron,emission mammography, PEM., Results presented ...

... Cell Therapeutics, Inc.,(CTI) (Nasdaq and MTA: CTIC) ... including accrued interest, of its 2008 Convertible,Notes which ... cash payment of,approximately $11.0 million. The Company currently ... this last piece of current debt provides the ...

... Alexion,Pharmaceuticals, Inc. (Nasdaq: ALXN ) today ... Financial Officer of Alexion,Pharmaceuticals, will present at the ... at 9:10 a.m., local time (10:10 a.m., eastern) ... of Mr. Sinha,s remarks will be available live. ...

Other Biology Technology:Naviscan's PEM Flex(TM) Detects Smallest Cancers Better Compared to MRI in an Independent Study 2 Cell Therapeutics, Inc. Repays $11.0 million Balance of 2008 Convertible Debt 2

Naviscan's PEM Flex(TM) Detects Smallest Cancers Better Compared to MRI in an Independent Study Cell Therapeutics, Inc. Repays $11.0 million Balance of 2008 Convertible Debt Alexion to Present at the William Blair 28th Annual Growth Stock Conference

... NOVOstar is an exciting product for cell-based ... assays required the use of expensive HTS ... scientists in the assay development stage. The ... cell-based assays as well as any other ...

... the DH-2000, but comes with a shutter (controlled ... 5 Hz) The DH-2000 Deuterium ... of deuterium and tungsten halogen light sources in ... produces a powerful, stable output from 215-200 nm. ...

... These handy dispensers save space ... hats, and other garb. They are ... small parts used in labs, processing ... static charges and the particles they ...

... critical to the maintenance of appropriate ... as important and diverse as those ... and stress response, antigen presentation, modulation ... channels, cell cycle regulation, transcription, and ...

Biology Products:

NOVOstar Microplate Reader from BMG LABTECH DH-2000 with integrated shutter from Ocean Optics Safety Glasses Dispensers from Terra Universal, Inc.Ubiquitin Fraction I Extract from GeneTex

New bacteria discovered in raw milk( Raw milk is illegal in many countrie...)