Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Sauerkraut contains anticancer compound

17.10.2002


Baseball fans might want to add a little more sauerkraut to their hot dogs: Researchers have identified compounds in the tangy topping, made from fermented cabbage, that may fight cancer. Their study will appear in the Oct. 23 print issue of the Journal of Agricultural and Food Chemistry, a peer-reviewed journal of the American Chemical Society, the world’s largest scientific society.



The researchers found that the process of fermenting cabbage produces isothiocyanates, a class of compounds that have been identified in previous studies as potential cancer-fighting agents. In animal studies, the compounds appear to prevent the growth of cancer, particularly in the breast, colon, lung and liver, they say. No one knows yet whether the compounds, which are not found in raw cabbage, have a similar effect in humans. Further studies are needed, they add.

"We are finding that fermented cabbage could be healthier than raw or cooked cabbage, especially for fighting cancer," says Eeva-Liisa Ryhanen, Ph.D., research manager of MTT Agrifood Research Finland, located in Jokioinen, Finland. "We are now working on ways of optimizing the fermentation process to make it even healthier so that consumers will eat more [sauerkraut]."


In the current study, the researchers analyzed a variety of biologically active compounds in sauerkraut. Their samples were derived from white cabbage that was fermented.

Although raw cabbage is normally rich in a compound called glucosinolate, the researchers found that during the fermentation process enzymes are released that completely decompose the compound into several breakdown products. The majority of these products are cancer-fighting isothiocyanates.

Evidence for sauerkraut’s anticancer effect is growing. Previous epidemiological studies have reported that Polish women who move to the United States have a higher incidence of breast cancer than those who remain in Poland, a statistic that some scientists attribute to a higher consumption of cabbage among the Polish women compared to their American counterparts.

At least one study found evidence that compounds in sauerkraut could inhibit estrogen, a hormone that can trigger the spread of breast cancer. The specific compounds have not been identified, however.

Currently, the researchers are investigating the effect of different starter cultures on the breakdown of glucosinolate. They hope the research may lead to sauerkraut with a greater abundance of healthy compounds, boosting its status as a functional (nutritious) food.

Besides anticancer compounds, the fermentation process also produces other healthy compounds not found in raw cabbage. These include organic acids such as lactic acid, which makes cabbage easier to digest. Although some loss in nutrients may occur during fermentation, sauerkraut is still a good source for vitamin C, certain minerals and dietary fiber, the researchers say.

Their work also adds to a growing number of studies demonstrating that similar cruciferous vegetables (including broccoli, cauliflower and Brussels sprouts) contain anticancer compounds.

Sauerkraut is a low-calorie, low-fat food that is second only to mustard as this country’s favorite hot dog topping. Americans annually consume an estimated 387 million pounds of sauerkraut, or about 1.5 pounds per person yearly, according to Pickle Packers International, Inc., a trade association for the pickled vegetable industry.

Beverly Hassell | EurekAlert!
Further information:
http://www.acs.org/

More articles from Health and Medicine:

nachricht New malaria analysis method reveals disease severity in minutes
14.08.2017 | University of British Columbia

nachricht New type of blood cells work as indicators of autoimmunity
14.08.2017 | Instituto de Medicina Molecular

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: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>