Featured Research

from universities, journals, and other organizations

Seaweed does the heart good?

Date:
September 13, 2011
Source:
Teagasc
Summary:
Researchers at Teagasc have been investigating lipids from a variety of Irish and Canadian seaweed species for their heart-health properties.

The value added sector of the seaweed industry in Ireland has emerged to produce attractive, high-quality products for use as functional body care products and cosmetics. Scientists at Teagasc are now looking into seaweed as a source of bioactive compounds for functional food ingredients. Pictured is the common Irish species spiral or flat wrack Fucus spiralis.
Credit: Dr Anna Soler, NUIG

Researchers at Teagasc have been investigating lipids from a variety of Irish and Canadian seaweed species for their heart-health properties.

In both Ireland and Canada (province of Newfoundland and Labrador), seaweeds have a long tradition of use. In Ireland, for example, approximately 36,000 tonnes of seaweed are harvested annually. Seaweed species of commercial interest in Ireland include Laminaria digitata and Fucus species (Fucus vesiculosus, Fucus serratus and Fucus spiralis), which are harvested primarily for their valuable carbohydrates, Laminarin and Fucoidan, respectively. The value-added sector of the seaweed industry in Ireland has emerged to produce attractive, high-quality products for use as functional body care products and cosmetics.

However, there is, to date, limited activity aimed at exploiting Irish seaweed resources as materials for functional food ingredients with enhanced health benefits that go beyond basic nutrition for the consumer. The NutraMara Research Programme is currently working at developing the area of marine-origin functional foods in Ireland.

Seaweeds are known to contain a number of heart-health compounds, including ACE inhibitors, antioxidants and essential fatty acids (lipids).

As part of a research collaboration with the Memorial University, Newfoundland, Michelle Tierney and Dr Maria Hayes developed methods for the isolation of total lipids from a number of seaweed species.

"Seaweeds are a known source of essential fatty acids, which are thought to reduce thrombosis and atherosclerosis -- factors important in the reduction of the risk of heart disease," explains Dr Hayes.

Of the eight Irish and Newfoundland seaweed species used in this study, the Irish seaweed, Pelvetia canaliculata, had the highest percentage of total lipids per dry weight, followed by the sustainable Irish seaweed Ascophyllum nodosum. Further work is currently underway at the Teagasc Food Research Centre, Ashtown, concerning the bioactivity profiles and bioactive component isolation of all seaweed lipid extracts.

"These lipids could potentially be used in food vehicles such as bread and soup type products in the future," said Dr Hayes.


Story Source:

The above story is based on materials provided by Teagasc. Note: Materials may be edited for content and length.


Cite This Page:

Teagasc. "Seaweed does the heart good?." ScienceDaily. ScienceDaily, 13 September 2011. <www.sciencedaily.com/releases/2011/09/110913184059.htm>.
Teagasc. (2011, September 13). Seaweed does the heart good?. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2011/09/110913184059.htm
Teagasc. "Seaweed does the heart good?." ScienceDaily. www.sciencedaily.com/releases/2011/09/110913184059.htm (accessed April 24, 2014).

Share This



More Health & Medicine News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
Study Says Most Crime Not Linked To Mental Illness

Study Says Most Crime Not Linked To Mental Illness

Newsy (Apr. 22, 2014) A new study finds most crimes committed by people with mental illness are not caused by symptoms of their illness or disorder. Video provided by Newsy
Powered by NewsLook.com
Hagel Gets Preview of New High-Tech Projects

Hagel Gets Preview of New High-Tech Projects

AP (Apr. 22, 2014) Defense Secretary Chuck Hagel is given hands-on demonstrations Tuesday of some of the newest research from DARPA _ the military's Defense Advanced Research Projects Agency program. (April 22) Video provided by AP
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins