Navigation Links
Fried purple tomatoes
Date:10/26/2008

Scientists have expressed genes from snapdragon in tomatoes to grow purple tomatoes high in health-protecting anthocyanins.

Anthocyanins are naturally occurring pigments found at particularly high levels in berries such as blackberry, cranberry and chokeberry. Scientists are investigating ways to increase the levels of health-promoting compounds in more commonly eaten fruits and vegetables.

"Most people do not eat 5 portions of fruits and vegetables a day, but they can get more benefit from those they do eat if common fruit and veg can be developed that are higher in bioactive compounds," says Prof Cathie Martin from the John Innes Centre.

Anthocyanins offer protection against certain cancers, cardiovascular disease and age-related degenerative diseases. There is evidence that anthocyanins also have anti-inflammatory activity, promote visual acuity and hinder obesity and diabetes.

Tomatoes already contain high levels of the antioxidant lycopene. Highly processed tomatoes are the best source, or tomatoes cooked in a little oil, which helps to release the lycopene from cells. Flavonoids meanwhile are soluble in water, and foods containing both water soluble and fat-dissolved antioxidants are considered to offer the best protection against disease.

In this study the scientists expressed two genes from snapdragon that induce the production of anthocyanins in snapdragon flowers. The genes were turned on in tomato fruit. Anthocyanins accumulated in tomatoes at higher levels than anything previously reported for metabolic engineering in both the peel and flesh of the fruit. The fruit are an intense purple colour.

The scientists tested whether these elevated levels actually had an effect on health. In a pilot test, the lifespan of cancer-susceptible mice was significantly extended when their diet was supplemented with the purple tomatoes compared to supplementation with normal red tomatoes.

"This is one of the first examples of metabolic engineering that offers the potential to promote health through diet by reducing the impact of chronic disease," says Professor Cathie Martin.

"And certainly the first example of a GMO with a trait that really offers a potential benefit for all consumers. The next step will be to take the preclinical data forward to human studies with volunteers to see if we can promote health through dietary preventive medicine strategies."


'/>"/>

Contact: Zoe Dunford
zoe.dunford@bbsrc.ac.uk
44-016-032-55111
Norwich BioScience Institutes
Source:Eurekalert  

Related biology news :

1. Monell scientist Mark Friedman awarded Guggenheim Fellowship to study diet and obesity
2. Purple extremist thrives under inhospitable conditions
3. Certain form of tomatoes could be key to prostate cancer prevention
4. Can tomatoes carry the cure for Alzheimers?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fried purple tomatoes
(Date:3/14/2016)... NXTD ) ("NXT-ID" or the "Company"), ... the airing of a new series of commercials on Time ... 21 st .  The commercials will air on Bloomberg TV, ... the Street show. --> NXTD ) ("NXT-ID" or ... market, announces the airing of a new series of commercials ...
(Date:3/10/2016)... , March 10, 2016   Unisys Corporation (NYSE: ... Border Protection (CBP) is testing its biometric identity solution ... Diego to help identify certain non-U.S. citizens leaving ... The test, designed to help determine the efficiency and accuracy ... in February and will run until May 2016. --> ...
(Date:3/3/2016)... 3, 2016  FlexTech, a SEMI Strategic Association Partner, ... Research & Development, Leadership in Education, and, in a ... 9 th year of the FLEXI Awards and ... individuals from past years . Judging was done ... set of criteria, by a panel of non-affiliated, independent, ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... ... April 27, 2016 , ... The Pittcon Organizing Committee ... Chuck has been a volunteer member of Committee since 1987. Since then, he ... of directors and treasurer and was chairman for both the program and exposition committees. ...
(Date:4/27/2016)... ... 2016 , ... NDA Partners Chairman Carl Peck, MD ... Consultant. Mr. Clark was formerly a Vice President with US Pharmacopeia, where ... monographs based on analytical methods. NDA Partners Expert Consultants are top tier ...
(Date:4/27/2016)... MedDay, a biotechnology company focused on the treatment ... Moukheibir as Chairman of its Board of Directors. ... , who contributed to the rapid development of the Company ... started her career in strategy consulting and investment banking in ... .  She held C-Suite level roles in some of ...
(Date:4/26/2016)... , ... April 26, 2016 , ... ... lithography systems, announces the latest technology innovation for its Volume Pattern Generator (VPG) ... demand for production of advanced photomasks as well as a solution for mid ...
Breaking Biology Technology: