Featured Research

from universities, journals, and other organizations

The Science Of Longer Lasting Lager

Date:
August 31, 2009
Source:
Technische Universitaet Dortmund
Summary:
One of the long standing problems in the drinks industry is how to prevent chemical processes in the drinks compromising their taste, quality and shelf life. In particular, riboflavin (vitamin B2) is responsible for driving photooxidation reactions that affect the flavour of many drinks and so they often have to be packaged in light-shielded containers. Now scientists have developed a way of removing riboflavin.

One of the long standing problems in the drinks industry is how to prevent chemical processes in the drinks compromising their taste, quality and shelf life. In particular, riboflavin (vitamin B2) is responsible for driving photooxidation reactions that affect the flavour of many drinks and so they often have to be packaged in light-shielded containers.

Now Bφrje Sellergren, at the Technical University of Dortmund, Germany, and colleagues have developed a way of removing riboflavin. They imprinted riboflavin-shaped pockets into a polymer by synthesising it in the presence of riboflavin tetra-acetate template molecules. Removing the template left empty receptor pockets, which the team showed could capture and remove riboflavin from milk, beer and multivitamin mixtures.

"An important transition [for molecularly imprinted polymers] from being artificial receptors used in laboratory applications to being scrubbers capable of selectively removing unwanted, toxic or irritating compounds from many types of consumer products" - Nicholas Snow, Seton Hall University, South Orange, US

According to Sellergren, his molecularly imprinted polymer is unlike many others designed to capture or detect small molecule targets because it performs well in aqueous systems. It can extract up to 86 per cent of the riboflavin compared to 47 per cent for the corresponding non-imprinted control polymer, he explains. 'Food analysis and processing is a field that would profit from such receptors,' he says. 'Generic techniques to prepare fully water-compatible molecularly imprinted polymers will become important for unlocking such applications.'

Nicholas Snow, who specialises in separation science at Seton Hall University, South Orange, US, says the work represents 'an important transition [for molecularly imprinted polymers] from being artificial receptors used in laboratory applications to being scrubbers capable of selectively removing unwanted, toxic or irritating compounds from many types of consumer products'.

Antonio Martνn-Esteban an expert in analytical applications of molecularly imprinted polymers at the National Institute for Agriculture and Food Research and Technology, Madrid, Spain, comments that Sellergren's polymer formation strategy 'is so simple and effective that it will most likely become routinely incorporated in the synthesis of a new generation of improved water-compatible imprinted polymers'.

A significant proportion of the riboflavin is still removed by non-specific hydrophobic binding interactions, says Sellergren. The next step is to refine further the polymer preparation process to reduce the non-specific binding, while retaining the integrity and activity of the specific binding pockets.


Story Source:

The above story is based on materials provided by Technische Universitaet Dortmund. Note: Materials may be edited for content and length.


Cite This Page:

Technische Universitaet Dortmund. "The Science Of Longer Lasting Lager." ScienceDaily. ScienceDaily, 31 August 2009. <www.sciencedaily.com/releases/2009/08/090803083912.htm>.
Technische Universitaet Dortmund. (2009, August 31). The Science Of Longer Lasting Lager. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2009/08/090803083912.htm
Technische Universitaet Dortmund. "The Science Of Longer Lasting Lager." ScienceDaily. www.sciencedaily.com/releases/2009/08/090803083912.htm (accessed September 17, 2014).

Share This



More Matter & Energy News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Space Race Pits Bezos Vs Musk

Space Race Pits Bezos Vs Musk

Reuters - Business Video Online (Sep. 16, 2014) — Amazon CEO Jeff Bezos' startup will team up with Boeing and Lockheed to develop rocket engines as Elon Musk races to have his rockets certified. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

Newsy (Sep. 16, 2014) — MIT developed a robot modeled after a cheetah. It can run up to speeds of 10 mph, though researchers estimate it will eventually reach 30 mph. Video provided by Newsy
Powered by NewsLook.com
Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) — Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. Video provided by Newsy
Powered by NewsLook.com
Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Refurbished New York Subway Tunnel Unveiled After Sandy Damage

Reuters - US Online Video (Sep. 15, 2014) — New York officials unveil subway tunnels that were refurbished after Superstorm Sandy. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

    Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins