These compounds have a chemopreventive effect in humans and a great influence on the stability of oxidation levels of food.
UGR News Scientists at the University of Granada have identified and characterized for the first time different antioxidant compounds from foods such as olive oil, honey, walnuts and a medicinal herb called Teucrium polium. They have used two new techniques, capillary electrophoresis and high resolution liquid chromatography, that have enabled them to identify and quantify a great part of the phenolic compounds contained in these foods.
Functional foods such as olive oil, honey, walnuts and a medicinal herb called Teucrium polium are able to provide different health benefits, so their study and characterization is of great interest. Among the compounds that give such functional characteristics to these foods are phenolic compounds that have generated great interest due to their antioxidant capacity, which endows them with a chemopreventive effect in humans and causes them to have a great influence on the stability of oxidation present in food. Therefore, according to UGR researchers, the "identification and quantification [of these compounds] is a good means for the characterization of foods that contain them."
This work has been performed by Ana María Gómez Caravaca, and directed by Professors Alberto Fernández Gutiérrez and Antonio Segura Carretero, from the Department of Analytical Chemistry at the UGR.
Scientists stress that phenolic compounds have a high antioxidant power and also influence the organoleptic properties of food. Therefore, studies such as the one carried out at the UGR are of great interest because they can determine the amount of these compounds present in foods, and also what compounds are included in every matrix, being able to even determine which one presents a higher activity and its concrete action.Phenolic Fraction
Information obtained by scientists from the UGR is useful because these compounds have many beneficial health properties. It is widely reported that they have a high antioxidant activity and are able to positively influence the organism by preventing the onset of certain diseases (diabetes, obesity, cardiovascular diseases, cancer, arterial hypertension, etc.).
The laboratory analyses were performed using the separation techniques of capillary electrophoresis and HPLC coupled to different types of detectors (UV-Vis, MS, NMR). Capillary electrophoresis connected to mass spectrometry proved to be innovative, as it had never before been used for the analysis of the phenolic fraction of honey and walnut. Moreover, these methods allowed identification of some phenolic compounds in these foods for the first time - a point of great interest for its possible antioxidant activity in the phenolic fraction.
The results obtained during this PhD thesis have resulted in nine publications in international journals such as Electrophoresis, Journal of Chromatography, and Journal of Agricultural and Food Chemistry.
Reference: Ana Mª Gómez Caravaca, Department of Analytical Chemistry, University of Granada. Tel: (+34) 958 248 593. E-mail: firstname.lastname@example.org
Ana Gomez Caravaca | EurekAlert!
Designer cells: artificial enzyme can activate a gene switch
22.05.2018 | Universität Basel
Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
22.05.2018 | Life Sciences
22.05.2018 | Earth Sciences
22.05.2018 | Trade Fair News