Navigation Links
Probing and controlling 'molecular rattling' may mean better preservatives
Date:2/25/2009

For centuries, people have preserved fruit by mixing it with sugar, making thick jams that last for months without spoiling. Now scientists at the National Institute of Standards and Technology (NIST) have discovered* a fundamental property of mixture behavior that might help extend the life of many things including vaccines, food and library booksand save money while doing it.

In addition to jams, sugars are often used to preserve pharmaceuticals and similar biological materials. There are a number of mechanisms involved, but recently the local stiffening of the preservative was identified as a factor that can increase shelf life. Basically, stiffening the preservative decreases the rattling of the fluids molecules and stabilizes the product, presumably because these rattling motions are intimately involved in spoilingfor instance, in the protein degradation processes that lead to the loss of biological function. Several years ago, the NIST team discovered the practical importance of high-frequency molecular rattling for protein preservation.**

But while sugars and other preservatives such as salts have been used since ancient times, the prediction of how well a preservative works for a specific material has remained more an art than a science. Now, however, the NIST team has developed a relatively accessible measurement method for precisely quantifying the slowing down (or enhancement) of the local rattling motions in preservative formulations and have introduced a general mathematical framework for describing these changes. This should remove much of the guesswork in determining the best way to protect a particular commodity, says Jack Douglas of Polymers Division of NIST.

In the new paper, the team reveals a general pattern of behavior in the change in the rattling motions in mixtures that appears to apply to a variety of materials; these findings promise to be very helpful in the future development of preservatives. The paper al
'/>"/>

Contact: Chad Boutin
boutin@nist.gov
301-975-4261
National Institute of Standards and Technology (NIST)
Source:Eurekalert

Page: 1 2

Related biology news :

1. New book presents successful strategies for probing genetic variation
2. Controlling cucumber beetles organically
3. Brain enzyme may play key role in controlling appetite and weight gain
4. bioMETRX, Inc. Signs Deal To Acquire Controlling Interest in Biometric Solutions, LLC
5. Hidden infections crucial to understanding, controlling disease outbreaks
6. Biologists identify genes controlling rhythmic plant growth
7. People with heart disease still have trouble controlling blood lipid levels
8. Controlling embryonic fate by association
9. Controlling a sea of information
10. Controlling schistosomiasis: buffalo or snails?
11. Bioclocks work by controlling chromosome coiling
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/16/2014)... fall marks a new school year, a new football ... Space Station. In September, SpaceX,s Dragon spacecraft is scheduled ... and investigations as part of the company,s fourth contracted ... will be the third suite of research investigations sponsored ... Space (CASIS). With the role of managing the U.S. ...
(Date:9/16/2014)... (KXL) would likely increase oil sands extraction, according to ... non-profit organization Near Zero. The results are detailed in ... both supporters and opponents of the pipeline. ... to significantly higher greenhouse gas emissions, with the exact ... "This report examines three main scenarios discussed by participants ...
(Date:9/16/2014)... votes for independence later this week, its Government could ... that fracking is necessary, research has revealed. , The ... public perception of shale gas extraction in the UK ... north of the border are the least supportive of ... in the University,s School of Geography, said: "The clear ...
Breaking Biology News(10 mins):CASIS research set for launch aboard SpaceX mission to space station 2CASIS research set for launch aboard SpaceX mission to space station 3Keystone XL would likely raise oil sands production and greenhouse gas emissions 2Scottish people most sceptical on fracking, survey shows 2Scottish people most sceptical on fracking, survey shows 3
... Medicine and University of Crete School of Medicine researchers ... a molecular mechanism that dynamically alters the strength of ... the development of drug therapies for the cognitive deficits ... bipolar disorder, or attention deficit hyperactivity disorder (ADHD). ...
... novel gene mutation that causes X-linked mental retardation for ... to an article to be published electronically on Tuesday, ... Genetics. , Investigators F. Lucy Raymond (Cambridge Institute ... Patrick S. Tarpey (Wellcome Trust Sanger Institute, Hixton, UK) ...
... the University of California, San Diego and the University ... of estimated plant species richness. Covering several hundred thousand ... most extensive map of the distribution of biodiversity on ... study published in this week's early online issue of ...
Cached Biology News:Brain networks strengthened by closing ion channels 2Brain networks strengthened by closing ion channels 3Severe mental retardation gene mutation identified 2Biologists produce global map of plant biodiversity 2
(Date:9/17/2014)... MARLBOROUGH, Mass. , Sept. 17, 2014 /PRNewswire/ ... ), a biotechnology company focused on discovering, developing ... needs using RNA-targeted technologies, today announced that it has ... Patent and Trademark Office on its unique delivery ... ® ) to phagocytic cells for the treatment ...
(Date:9/17/2014)... 17, 2014 Escape Alert, LLC . filed ... which will alert owners if their pet has escaped and enable ... implanted microchip in the pet’s body. This is the first ... pets have been around for many years, they are passive until ... to track a pet’s location or alert the owner that the ...
(Date:9/17/2014)... September 17, 2014 The Pistoia ... to lowering the barriers to innovation in life ... appointment of Carmen Nitsche as Executive Director Business ... expand its global reach. , Carmen joins the ... President, Corporate Development. At Accelrys, she managed various ...
(Date:9/16/2014)... YORK , Sept. 16, 2014 This report ... the following Product Segments: Software, Hardware, and Biocontent. The report ... , Japan , Europe ... America , and Rest of World. Annual estimates and ... a seven-year historic analysis is provided for these markets. Market ...
Breaking Biology Technology:RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 2Implantable Microchip for Pets with GPS Tracking - Patent Filed by Escape Alert, LLC. 3Pistoia Alliance Expands Business Development with Appointment of Carmen Nitsche 2Global Bioinformatics Industry 2Global Bioinformatics Industry 3Global Bioinformatics Industry 4Global Bioinformatics Industry 5Global Bioinformatics Industry 6Global Bioinformatics Industry 7Global Bioinformatics Industry 8Global Bioinformatics Industry 9Global Bioinformatics Industry 10Global Bioinformatics Industry 11Global Bioinformatics Industry 12Global Bioinformatics Industry 13Global Bioinformatics Industry 14Global Bioinformatics Industry 15Global Bioinformatics Industry 16Global Bioinformatics Industry 17Global Bioinformatics Industry 18Global Bioinformatics Industry 19Global Bioinformatics Industry 20Global Bioinformatics Industry 21Global Bioinformatics Industry 22Global Bioinformatics Industry 23
... Allows Accurate Marketing Claims Designed with Input from,Entire ... nation,s leading livestock,cloning companies announced today a tracking ... allow food companies to identify cloned animals,when they ... program was developed through extensive cooperative discussions,over the ...
... MATEO, Calif., Dec. 19 BioForm Medical,Inc. (Nasdaq: ... will present a company overview at the upcoming 26th ... BioForm,Medical,s presentation will take place on Monday, January 7th, ... Westin St. Francis Hotel in San Francisco,CA., A ...
... Holdings, Inc. (OTC,Bulletin Board: HTWO) announced today that ... Mirant Energy Trading LLC, a subsidiary of Mirant ... biofuel technology in utility,scale power generation applications., ... biofuel for a gas,turbine test program that will ...
Cached Biology Technology:Top U.S. Cloning Companies Announce New System to Track Cloned Livestock 2BioForm Medical to Present at the 2008 JPMorgan Healthcare Conference on January 7, 2008 2H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 2H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 3
... to the maintenance of appropriate levels ... important and diverse as those involved ... stress response, antigen presentation, modulation of ... cell cycle regulation, transcription, and signalling ...
... includes 1. Scanning of gel(s) 2. ... tryptic in-gel digestion and peptide extraction ... 5. Acquisition of PMF (Peptide Mass ... TOF/TOF) 6. Acquisition of PFF (Peptide ...
... The Vibratome Company has joined forces with ... the Vibratome 411301 Tissue Chopper. This tissue ... sections of tissue for metabolic experiments and ... irregular specimens available at biopsy or from ...
... The ProteinChip Antibody ... assay development and optimization ... evaluate antibody-antigen interactions. This ... and differentiation of multiple ...
Biology Products: