Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Humble spud sprouts surprise

01.07.2005


UK scientists have identified bioactive plant chemicals in the most practical of staple foods, the potato. These natural chemicals have been associated with reduced blood pressure and they selectively affect a chemotherapeutic target for trypanosomes and similar diseases such as sleeping sickness.

“Potatoes have been cultivated for thousands of years, and we thought traditional crops were pretty well understood”, says food scientist Dr Fred Mellon from the Institute of Food Research (IFR). “But this surprise finding shows that even the most familiar of foods might conceal a hoard of health-promoting chemicals”.

Kukoamines and related compounds were found at higher levels than some other compounds in potatoes that have a long history of scientific investigation. However, kukoamines are little studied, as they have only previously been found in an exotic plant whose bark is used to make an infusion in Chinese herbal medicine.



Dr Mellon and his team stumbled across the compounds while doing an analysis funded by the Food Standards Agency. “No-one had expected to find them in one of the staple food crops of the Western world”, he says.

Scientists used to have to know what they were looking for when analysing composition. They might look for 30 or so known compounds. With new “metabolomic” techniques, they can find the unexpected by analysing the 100s or even 1000s of small molecules produced by an organism. IFR has just taken delivery of a new instrument to be used for metabolomics studies in diet and health, and food safety research.

“Only a small proportion of plants have been subjected to serious phytochemical analysis”, said Dr Mellon. “Until now none of the new metabolites we found in this study had ever been identified from any of the species we examined, and only one had ever been described from another plant source. Modern profiling techniques should enable major breakthroughs to be made in understanding how genes interact with environment to determine the complex position of a plant or animal in life”.

The scientists have yet to determine the stability of compounds during cooking and to conduct detailed dose-response studies to determine their impact on health.

The findings were published yesterday in the Journal of Agricultural and Food Chemistry and are available online through the journal’s ASAP advance access:pubs.acs.org/cgi-bin/asap.cgi/jafcau/asap/pdf/jf050298i.pdf

Zoe Dunford | alfa
Further information:
http://www.ifr.ac.uk

More articles from Agricultural and Forestry Science:

nachricht Energy crop production on conservation lands may not boost greenhouse gases
13.03.2017 | Penn State

nachricht How nature creates forest diversity
07.03.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Transport of molecular motors into cilia

28.03.2017 | Life Sciences

A novel hybrid UAV that may change the way people operate drones

28.03.2017 | Information Technology

NASA spacecraft investigate clues in radiation belts

28.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>