Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New analytical methods for the study of abiotic contaminants in foodstuffs

11.10.2005


Professor Ramón Barrio´s research team at the Department of Analytical Chemistry of the University of the Basque Country (UPV/EHU) has developed a series of new analytical methodologies in order to tackle the the problem of the persistence of certain commonly used pesticicides in ecosystems such as forests and agricultural land.



The characterisation of pesticicide residues in various matrixes and in kinetic studies on degradation as a function of meteorological parameters provided us with knowledge about the persistence and mobility of the chosen compounds. Also, optimised dosages and application systems were proposed in order to avoid unnecesary environmental risks and minimise their subsequent appearance in products aimed for human consumption.

The characterisation of these compounds involved working with chromatographic techniques (LC-MS, GC-MS) and voltampermetric ones (microsensors based on molecular imprint polymers), at times using the equipment of the Central Analysis Service of the UPV/EHU (www.ehu.es/inves/central_analisis.htm).


One of the sectors of production with which the research team worked most was the wine producing sector. A number of agreements have been signed with public bodies such as the Basque Government Department of Agriculture and Fisheries, Technology Centres and with a number of bodegas (wineries) from the Rioja Alavesa, in order to investiagate aspects regarding dosage for the prevention of plant diseases.

Also, the presence of minority organic compounds of an endogenic origin, generated either by the plant itself or in the processes of transformation, affects areas of food safety. Within the framework of the aforementioned agreements, studies relating to the quality of grape earmarked for wine production were carried out (involving parameters such as glucose, fructose, polyphenols index, pH, Brix grade and malic, tartaric and gluconic acids). Also studied was the detection and control of the genesis of biogenic amines in the processes of wine making (compounds associated with the intolerance to wine by persons that have a diamino-oxidase enzyme defect, which produces an excess in the absorption of these amines and, in turn, produces severe migraine-type headaches).

Garazi Andonegi | alfa
Further information:
http://www.basqueresearch.com

More articles from Agricultural and Forestry Science:

nachricht Trees and climate change: Faster growth, lighter wood
14.08.2018 | Technische Universität München

nachricht Animals and fungi enhance the performance of forests
01.08.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>