Smoked salmon is produced by salting, smoking and trimming or slicing the fish and then vacuum-packaging the final product. Researchers from the U.S. Department of Agriculture (USDA) examined the survival of Listeria monocytogenes during the processing of smoked salmon.
This pathogen has the ability to grow at low temperatures and can cause food borne illness upon consumption. Smoked salmon is a ready-to-eat product and if it is not processed and handled properly, it can become contaminated with Listeria monocytogenes.
Researchers from USDA’s Agricultural Research Service (ARS) in Wyndmoor, PA, examined the survival of Listeria monocytogenes as affected by salt, smoke compound and temperature between the cold and hot-smoking of salmon. Greater inactivation rates of Listeria monocytogenes occurred in samples processed at higher temperatures and in samples containing higher concentrations of salt and smoke compound. The inactivation rate increased tenfold when the temperature increased by 5° C, indicating that smoking temperature is a main factor affecting the inactivation of the pathogen. In addition, salt and smoke compounds also contribute to the inactivation effect.
“The data and model developed in this study can be used on select concentrations of salt and smoke compound, as well as smoking temperatures of 40° C to 55° C to minimize the presence of Listeria monocytogenes in smoked salmon and therefore, increasing its safety for consumers,” says lead researcher Dr. Cheng-An Hwang
To receive a copy of the study, please contact Jeannie Houchins at firstname.lastname@example.org.About IFT
© 2009 Institute of Food Technologists
Jeannie Houchins | Newswise Science News
Resolving the mystery of preeclampsia
21.10.2016 | Universitätsklinikum Magdeburg
New potential cancer treatment using microwaves to target deep tumors
12.10.2016 | University of Texas at Arlington
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences