Featured Research

from universities, journals, and other organizations

New method used to detect 20 drugs in cow, goat and human milk

Date:
July 6, 2011
Source:
Plataforma SINC
Summary:
Researchers have developed a method that makes it possible to simultaneously detect 20 pharmaceutical products in cow, goat and human milk. The samples of the three types of milk studied showed that they all contain anti-inflammatories, although the largest number of drugs was found in whole cows' milk.

A Spanish-Moroccan research team has developed a method that makes it possible to simultaneously detect 20 pharmaceutical products in cow, goat and human milk. The samples of the three types of milk studied showed that they all contain anti-inflammatories, although the largest number of drugs was found in whole cows' milk.

Related Articles


Up to 20 kinds of antibiotics, anti-inflammatories, antiseptics, lipid regulators, beta-blockers and hormones can be detected simultaneously in various kinds of milk, thanks to a new method developed by researchers at the universities of Jaén and Córdoba in Spain and the Abdelmalek Essaadi University in Morocco.

"We used this methodology to analyse 20 samples of cows' milk (fresh, whole, semi-skimmed, skimmed and powdered), goats' milk (whole and semi-skimmed) and breast milk from human volunteers, and we found that the drug content differs according to the type of milk," Evaristo Ballesteros, a researcher at the University of Jaén and the study director, said.

The highest number of pharmacological substances was found in whole cows' milk, particularly niflumic acid, mefenamic acid and ketoprofen (three anti-inflammatory drugs) and the hormone 17-beta-estradiol. Niflumic acid was also found in goats' milk, along with flunixin.

The human milk analysed, meanwhile, also contained anti-inflammatory drugs (such as ibuprofen and naproxen), as well as the antiseptic triclosan and some hormones, such as 17-alfa-ethinyl estradiol, 17-beta-estradiol and estrone.

The researchers acknowledge that the results of the study, published in the Journal of Agricultural and Food Chemistry, cannot be extrapolated to all kinds of milk in general due to the small number of samples analysed, but they say it does confirm the validity of the method. The technique uses a "system of continuous extraction of substances in solid phase" and classifies them using "gas chromatography-mass spectrometry."

"The validation results clearly show that this method is the most sensitive and one of the most selective described to date in the scientific literature," explains Ballesteros. "It is also highly precise and exact, with short analysis times (around 30 minutes)."

The scientists believe the new methodology will help to provide a more effective way of determining the presence of these kinds of contaminants in milk or other products. Food quality control laboratories could use this new tool to detect these drugs before they enter the food chain.

"This would raise consumers' awareness and give them the knowledge that food, aside from its good organoleptic properties and good value, is also harmless, pure, genuine, beneficial to health and free of toxic residues," the researcher concludes.


Story Source:

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


Journal Reference:

  1. Beatriz Jurado-Sánchez, Evaristo Ballesteros, Mercedes Gallego. Gas Chromatographic Determination ofN-Nitrosamines, Aromatic Amines, and Melamine in Milk and Dairy Products Using an Automatic Solid-Phase Extraction System. Journal of Agricultural and Food Chemistry, 2011; 110603135313021 DOI: 10.1021/jf2013919

Cite This Page:

Plataforma SINC. "New method used to detect 20 drugs in cow, goat and human milk." ScienceDaily. ScienceDaily, 6 July 2011. <www.sciencedaily.com/releases/2011/07/110705081113.htm>.
Plataforma SINC. (2011, July 6). New method used to detect 20 drugs in cow, goat and human milk. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2011/07/110705081113.htm
Plataforma SINC. "New method used to detect 20 drugs in cow, goat and human milk." ScienceDaily. www.sciencedaily.com/releases/2011/07/110705081113.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rural India's Low-Cost Sanitary Pad Revolution

Rural India's Low-Cost Sanitary Pad Revolution

AFP (Nov. 28, 2014) — One man hopes his invention -– a machine that produces cheap sanitary pads –- will help empower Indian women. Duration: 01:51 Video provided by AFP
Powered by NewsLook.com
Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) — In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
WHO Says Male Ebola Survivors Should Abstain From Sex

WHO Says Male Ebola Survivors Should Abstain From Sex

Newsy (Nov. 28, 2014) — WHO cites four studies that say Ebola can still be detected in semen up to 82 days after the onset of symptoms. Video provided by Newsy
Powered by NewsLook.com
Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
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

 

Health & Medicine

Mind & Brain

Living & Well

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