Featured Research

from universities, journals, and other organizations

New method could stop shark oil being used in cosmetics and vaccines

Date:
May 19, 2010
Source:
Wiley - Blackwell
Summary:
A new method of analyzing squalene and squalane, oils often used in the production of cosmetics and vaccines, can show whether they came originally from the liver oil of deepwater sharks or from olive oil.

A new method of analyzing squalene and squalane, oils often used in the production of cosmetics and vaccines, can show whether they came originally from the liver oil of deepwater sharks or from olive oil.

Related Articles


In 2006 the European Union imposed deep-sea shark fishing limits in the North-East Atlantic, and since 2008 some important cosmetic firms have declared that they have stopped using shark squalane. Up to now however there has been no way that a manufacturers could determine whether the squalene or squalane they are using has come from sharks or olives, but the new scientifically validated method announced in this month's edition of Rapid Communications in Mass Spectrometry will reveal the source.

Squalane is used as an emollient and a hydrating agent in many cosmetics, and squalene is used to increase the power of the vaccines.

Currently thousands of endangered deep sea sharks are killed each year purely to supply a cheap source of these oils, with squalene being the second most sought after raw product of sharks after their fins. A technique does exist to extract these compounds from vegetable sources such as olive oil, but shark-derived squalene offers a higher yield and requires shorter processing times, therefore involving lower costs. Consequently there is a temptation for oil suppliers to keep on exploiting sharks.

"Our method will protect both cosmetic firms and consumers from commercial fraud and will make it possible to promote the production of squalene from olive oil. It will also allow the origin of squalane within a finished product to be determined. Together, this will discourage the illegal fishing of deepwater sharks and thus contribute towards protecting sharks from the threat of extinction," says Federica Camin, who works at the IASMA Research and Innovation Centre Fondazione Edmund Mach, in San Michele all'Adige, Italy.

The method uses an Isotope Ratio Mass Spectrometer coupled to an Elemental Analyser or Gas Chromatographer/combustion system to measure the ratio of two different forms of carbon (Carbon-13 and Carbon-12). In the study published in this month's paper, the team of researchers analysed 13 authentic samples from olive oil (from Spain, Italy, France and Turkey) and 15 samples from shark liver oil (from Spain, Portugal, Japan and Korea), therefore representative of the production area of squalene. The Carbon-13/Carbon-12 ratios were significantly lower in authentic olive oil than in shark samples.

"The new method could be proposed as an official way of detecting whether any batch of squalene or squalane has come from animal or plant sources, allowing manufactures to make clear claims about the ethical status of their products," says Camin.


Story Source:

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


Journal Reference:

  1. Federica Camin, Luana Bontempo, Luca Ziller, Cristiana Piangiolino, Gianni Morchio. Stable Isotope Ratios Of C And H To Distinguish Olive Oil From Shark Squalene-Squalane. Rapid Communications in Mass Spectrometry, 2010; DOI: 10.1002/rcm.4581

Cite This Page:

Wiley - Blackwell. "New method could stop shark oil being used in cosmetics and vaccines." ScienceDaily. ScienceDaily, 19 May 2010. <www.sciencedaily.com/releases/2010/05/100518230649.htm>.
Wiley - Blackwell. (2010, May 19). New method could stop shark oil being used in cosmetics and vaccines. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2010/05/100518230649.htm
Wiley - Blackwell. "New method could stop shark oil being used in cosmetics and vaccines." ScienceDaily. www.sciencedaily.com/releases/2010/05/100518230649.htm (accessed March 5, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Thursday, March 5, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Praying Mantis Looks Long Before It Leaps

Praying Mantis Looks Long Before It Leaps

Reuters - Innovations Video Online (Mar. 5, 2015) — Slowed-down footage of the leaps of praying mantises show the insect&apos;s extraordinary precision, say researchers. Video provided by Reuters
Powered by NewsLook.com
Octopus Grabs Camera and Turns It Around On Photographer

Octopus Grabs Camera and Turns It Around On Photographer

Buzz60 (Mar. 5, 2015) — A photographer got the shot of a lifetime, or rather an octopus did, when it grabbed the camera and turned it around to take an amazing picture of the photographer. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
Powered by NewsLook.com
Ringling Bros. Eliminating Elephant Acts

Ringling Bros. Eliminating Elephant Acts

AP (Mar. 5, 2015) — The Ringling Bros. and Barnum & Bailey Circus is ending its iconic elephant acts. The circus&apos; parent company, Feld Entertainment, told the AP exclusively that the acts will be phased out by 2018 over growing public concern about the animals. (March 5) Video provided by AP
Powered by NewsLook.com
Raw: Tourists Visit Rare Grey Whales in Mexico

Raw: Tourists Visit Rare Grey Whales in Mexico

AP (Mar. 4, 2015) — Once nearly extinct, grey whales now migrate in their thousands to Mexico&apos;s Vizcaino reserve in Baja California, in search of warmer waters to mate and give birth. Tourists flock to the reserve to see the whales, measuring up to 49 feet long. (March 4) Video provided by AP
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:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

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