Navigation Links
Boiling Makes Broccoli to Loses Its Anticancer Properties

Brassica vegetables such as broccoli, Brussel sprouts, cauliflower and green cabbage are known to contain substances that reduces the risk of cancer . But, researchers have now warned that boiling these veggies makes them to lose its anticancer properties.

Brassica vegetables have a high concentration of substances known as glucosinolates which are metabolized to cancer preventive substances known as isothiocyanates.

However before this research it was not known how the glucosinolates and isothiocyanates were influenced by storage and cooking of Brassica vegetables.

As a part of the study, researchers Prof Paul Thornalley from Warwick Medical School at the University of Warwick and Dr Lijiang Song from the University of Warwicks Department of Chemistry bought Brassica vegetables, (broccoli, Brussel sprouts, cauliflower and green cabbage) from a local store and transported them to the laboratory within 30 minutes of purchasing.

The effect of cooking on the glucosinolate content of vegetables was then studied by investigating the effects of cooking by boiling, steaming, microwave cooking and stir-fry.

Boiling appeared to have a serious impact on the retention of those important glucosinolate within the vegetables. The loss of total glucosinolate content after boiling for 30 minutes was: broccoli 77 percent, Brussel sprouts 58 percent, cauliflower 75 percent and green cabbage 65 percent.

The effects of other cooking methods were investigated: steaming for 020 min, microwave cooking for 03 min and stir-fry cooking for 05 min. All three methods gave no significant loss of total glucosinolate analyte contents over these cooking periods.

Domestic storage of the vegetables at ambient temperature and in a domestic refrigerator showed no significant difference with only minor loss of glucosinolate levels over 7 days.

However the researchers found that storage of fresh vegetables at much lower temperatures such as -85 degrees Celsius (much higher than for storage in a refrigerator at 48 degrees Celsius) may cause significant loss of glucosinolates up to 33 percent by fracture of vegetable material during thawing.

The researchers found that preparation of Brassica vegetables had caused only minor reductions in glucosinolate except when they were shredded finely which showed a marked decline of glucosinolate levels with a loss of up to 75 percent over 6 hours after shredding.

The boffins conclusion cut out boiling if you want the maximum benefit from these veggies.

"If you want to get the maximum benefit from your five portions-a-day vegetable consumption, if you are cooking your vegetables boiling is out. You need to consider stir frying steaming or micro-waving them," Professor Thornalley said.


Related medicine news :

1. What Makes Teens take Drugs
2. Music Makes you Smarter
3. New Healthy Weight Program Makes Healthy Eating More Interesting
4. All Work And No Play Makes Jack A Dull Boy
5. Dieting Makes People Miserable
6. Passive Smoking Makes Kids Prone To Respiratory Illness
7. ‘Never Say Die’ Spirit of Visually Challenged - Makes Him a Role Modl
8. Slash In Medi-Cal Coverage Makes Medical Care For The Poor Questionable
9. Grapefruit Aroma Makes Women Appear Younger
10. Drug Name Confusion Makes Imports Dangerous: FDA
11. Medical College Construction At Raichur Makes Slow Progress
Post Your Comments:

(Date:11/25/2015)... ... November 25, 2015 , ... Medical Solutions, ... again for its stellar workplace culture with the company’s Cincinnati office being named ... Solutions’ Cincinnati office was named a finalist in Cincinnati Business Courier’s 13th annual ...
(Date:11/25/2015)... ... , ... Ministers, senior government and UN agencies, representatives from ... Excellence, and public R&D institutions, civil societies and other partners gathered today at ... Network for Drugs and Diagnostics Innovation, ANDI, Stakeholders Meeting. The three- day meeting ...
(Date:11/25/2015)... Los Angeles, CA (PRWEB) , ... November 25, 2015 , ... ... advanced da Vinci surgical robot is being more and more widely heralded as a ... robotic assisted da Vinci method has over traditional laparoscopic surgery is that it can ...
(Date:11/25/2015)... ... November 25, 2015 , ... On November 25, 2015, officials of ... Narconon network, announced the release of a new cutting edge recovery program that has ... been working with drug- and alcohol-addicted individuals with the purpose to free addicts from ...
(Date:11/25/2015)... ... November 25, 2015 , ... On November 23rd 2015 Cozy ... personal heating products business. Cozy Products explains what this means for business moving ... well with the Cozy Products business model: to sell personal heaters that reduce energy ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... , November 26, 2015 ... Juntendo universitetssjukhus ser potential att använda SyMRI ... (MR-bilder) för patienter med multipel skleros ... forskningsavtal med SyntheticMR AB för att kunna ... på sjukhuset. Med SyMRI kan man generera ...
(Date:11/26/2015)... 26, 2015 Research and Markets ( ... "2016 Future Horizons and Growth Strategies in ... Shares, Country Segment Forecasts, Competitive Intelligence, Emerging Opportunities" ... --> --> This new ... Italian therapeutic drug monitoring market, including emerging tests, ...
(Date:11/25/2015)... 25, 2015  Amgen (NASDAQ: AMGN ) today ... with the United States (U.S.) ... biosimilar candidate to Humira ® (adalimumab). Amgen believes ... to the FDA and represents Amgen,s first BLA submission ... Harper , M.D., executive vice president of Research and ...
Breaking Medicine Technology: