Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Better than red wine or green tea, cocoa froths with cancer-preventing compounds

18.11.2003


There is a new reason to enjoy hot cocoa on a cold winter’s night in front of a cozy fire. Consider it a health drink.



Beyond the froth, cocoa teems with antioxidants that prevent cancer, Cornell University food scientists say. Comparing the chemical anti-cancer activity in beverages known to contain antioxidants, they have found that cocoa has nearly twice the antioxidants of red wine and up to three times those found in green tea.

Their finding will be published Dec. 3 in the American Chemical Society’s Journal of Agriculture and Food Chemistry , a peer-reviewed publication.


Scientists have long known that cocoa contains antioxidants, but no one knew just how plentiful they were compared with those in red wine and green tea.

The Cornell researchers, led by Chang Y. (Cy) Lee, chairman of the Department of Food Science and Technology at the university’s New York State Agricultural Experiment Station in Geneva, N.Y., say the reason that cocoa leads the other drinks is its high content of compounds called phenolic phytochemicals, or flavonoids, indicating the presence of known antioxidants that can stave off cancer, heart disease and other ailments. They discovered 611 milligrams of the phenolic compound gallic acid equivalents (GAE) and 564 milligrams of the flavonoid epicatechin equivalents (ECE) in a single serving of cocoa. Examining a glass of red wine, the researchers found 340 milligrams of GAE and 163 milligrams of ECE. In a cup of green tea, they found 165 milligrams of GAE and 47 milligrams of ECE.

"If I had made a prediction before conducting the tests, I would have picked green tea as having the most antioxidant activity," said Lee. "When we compared one serving of each beverage, the cocoa turned out to be the highest in antioxidant activity, and that was surprising to me."Phenolic compounds protect plants against insects and pathogens, and they remain active even after food processing. A decade ago "food scientists did not know that phenolics had an important role in human health," says Lee.

Lee and his colleagues used two chemical tests that measured how well the cocoa compounds scavenge for free radicals -- agents that cause cancer, heart disease and other diseases.

In the paper, the researchers discuss eating chocolate bars instead of drinking cocoa. "Although a bar of chocolate exhibits strong antioxidant activity, the health benefits are still controversial because of the saturated fats present," the researchers write. They explain that cocoa has about one-third of a gram of fat per one-cup serving, compared with eight grams of fat in a standard-size 40-gram chocolate bar.

Faced with the confusing prospect of drinking red wine or green tea or cocoa, Lee suggests enjoying all three in different parts of the day. "Personally, I would drink hot cocoa in the morning, green tea in the afternoon and a glass of red wine in the evening. That’s a good combination," he says.

The research paper is titled "Cocoa Has More Phenolic Phytochemicals and a Higher Antioxidant Capacity than Teas and Red Wine." Lee’s collaborators are his former graduate student, Ki Won Lee; Hyong Joo Lee, a professor at Seoul National University, South Korea; and Young Jun Kim, a post-doctoral researcher at Cornell. The research was funded in part by the BioGreen 21 Program, Rural Development Administration, Republic of South Korea.

Blaine P. Friedlander Jr. | Cornell News
Further information:
http://www.news.cornell.edu/releases/Nov03/HotCocoa-Lee.bpf.html

More articles from Health and Medicine:

nachricht 3D images of cancer cells in the body: Medical physicists from Halle present new method
16.05.2018 | Martin-Luther-Universität Halle-Wittenberg

nachricht Better equipped in the fight against lung cancer
16.05.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

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: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>