Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Carrot component reduces cancer risk

09.02.2005


Scientists have given us another reason to eat carrots - a compound found in the popular root vegetable has been found to have an effect on the development of cancer.



A team of researchers, from the University of Newcastle upon Tyne in England and Denmark, found the natural pesticide falcarinol reduced the risk of cancer developing in rats by one third. Although experts have recommended that people eat carrots for their anti-cancer properties, it has not been known exactly what component of the vegetable has this effect. The study results, published today in the Journal of Agricultural and Food Chemistry, are significant as they could contribute to healthy eating advice for consumers and recommendations for growers and may eventually aid the development of anti-cancer drugs.

Falcarinol protects carrots from fungal diseases, such as liquorice rot that causes black spots on the roots during storage. The scientists investigated the compound after a previous published study suggested it could prevent the development of cancer. The research team carried out tests on 24 rats with pre-cancerous tumours in laboratory conditions. They divided them into three groups and fed them different diets. The team found that, after 18 weeks, rats who ate carrots (the popular orange variety) along with their ordinary feed and the group which consumed falcarinol with their feed - in a quantity equal to that contained in the carrots - were one third less likely to develop full-scale tumours than the rats in the control group.


Dr Kirsten Brandt, a senior lecturer with Newcastle University’s School of Agriculture, Food and Rural Development, carried out the research with the University of Southern Denmark and the Danish Institute of Agricultural Sciences. She said: "We already know that carrots are good for us and can reduce the risk of cancer but until now we have not known which element of the vegetable has these special properties. "Our research allows us to make a more qualitative assessment of the vegetables we are eating, rather than quantitative. We now need to take it a step further by finding out how much falcarinol is needed to prevent the development of cancer and if certain types of carrot are better than others, as there are many varieties in existence, of different shapes, colours and sizes.

"We could also expand our research to include other vegetables. For consumers, it may soon no longer be a case of advising them to eat five portions of fruit and vegetables per day but to eat particular types of these in certain quantities. The research could also lead to more tailored advice for growers regarding the methods they should use when growing vegetables."

The experiment was conducted using raw carrots so researchers do not yet know if eating boiled carrots or drinking carrot juice, for example, would have the same effect. Dr Brandt, who says she eats "more carrots than most" and grows her own organic varieties, recommended that consumers should eat one small carrot every day, together with other vegetables and fruits, to benefit from their health-giving properties.

Falcarinol is toxic in large amounts but to obtain a lethal dose you would have to eat 400 kilograms of carrots at once. Researchers suspect it is effective because it stimulates mechanisms in the body that fight cancer, although they have yet to carry out a detailed analysis in this respect.

Dr Kirsten Brandt | EurekAlert!
Further information:
http://www.ncl.ac.uk

More articles from Health and Medicine:

nachricht Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>