Featured Research

from universities, journals, and other organizations

Origin of Italian wines is controlled better with multivariate statistics

Date:
November 7, 2012
Source:
Radboud University Nijmegen
Summary:
Wine derives its economic value to a large extent from geographical origin, which has a significant impact on the quality of the wine. According to the food legislation, wines can be without geographical origin (table wine) and with origin. Wines with origin must have characteristics which are essentially due to its region of production and must be produced, processed and prepared exclusively within that region.

Wine derives its economic value to a large extent from geographical origin, which has a significant impact on the quality of the wine. According to the food legislation, wines can be without geographical origin (table wine) and with origin. Wines with origin must have characteristics which are essentially due to its region of production and must be produced, processed and prepared exclusively within that region.

Related Articles


The development of fast and reliable analytical methods for the assessment of claims of origin is very important. Analytical chemists from Radboud University Nijmegen in the Netherlands came to help the Italian wine control institute Edmund Mach. The current official method is based on the measurement of stable isotope ratios of water and alcohol in wine, which are influenced by climatic factors.

The researchers evaluated the univariate approach underlying the official method to assess claims of origin and propose several new methods to get better geographical discrimination between samples. They show that multivariate methods are superior than univariate approaches in that they show increased sensitivity and specificity. In cases where data are non-normally distributed, an approach based on mixture modelling provides additional improvements. The results in this paper are based on 5220 Italian wine samples collected in the period 2000-2010.


Story Source:

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


Journal Reference:

  1. N. Dordevic, R. Wehrens, G.J. Postma, L.M.C. Buydens, F. Camin. STATISTICAL METHODS FOR IMPROVING VERIFICATION OF CLAIMS OF ORIGIN FOR ITALIAN WINES BASED ON STABLE ISOTOPE RATIOS. Analytica Chimica Acta, 2012; DOI: 10.1016/j.aca.2012.10.046

Cite This Page:

Radboud University Nijmegen. "Origin of Italian wines is controlled better with multivariate statistics." ScienceDaily. ScienceDaily, 7 November 2012. <www.sciencedaily.com/releases/2012/11/121107085630.htm>.
Radboud University Nijmegen. (2012, November 7). Origin of Italian wines is controlled better with multivariate statistics. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2012/11/121107085630.htm
Radboud University Nijmegen. "Origin of Italian wines is controlled better with multivariate statistics." ScienceDaily. www.sciencedaily.com/releases/2012/11/121107085630.htm (accessed October 24, 2014).

Share This



More Plants & Animals News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. 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:

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