Nicosia, Cyprus
Nicosia, Cyprus

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Karabagias I.K.,University of Ioannina | Louppis A.P.,cp Foodlab Ltd | Kontakos S.,Democritus University of Thrace | Papastephanou C.,cp Foodlab Ltd | And 2 more authors.
European Food Research and Technology | Year: 2016

The aim of the present study was: (1) to determine the mineral content of pine and thyme honeys produced in different regions in Greece and (2) differentiate pine and thyme honeys according to their geographical origin, based on selected minerals using multivariate analysis of variance (MANOVA) and linear discriminant analysis (LDA). For this purpose, 39 pine and 42 honey samples were collected from 9 different regions in Greece known to produce such types of honey. Twenty five minerals (Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sb, Se, Si, Ti, Tl, V, and Zn) were quantified using inductively coupled plasma-atomic emission spectroscopy. Results showed that pine and thyme honeys recorded variations in their mineral content according to geographical origin. A comparison between the two honey types revealed that pine honeys possessed 92.5 % higher total mineral content, compared to thyme honeys. This was also documented, by measuring electrical conductivity of pine and thyme honeys (mean ± SD values of 1.10 ± 0.27 and 0.40 ± 0.05, respectively) which gave an excellent Pearson’s correlation (r = 1) with their total mineral content. In addition, applying MANOVA and LDA to the mineral content of each honey type, honeys were satisfactorily correctly classified according to geographical origin. The correct prediction rates were 84.6 and 83.3 % for pine and thyme honeys, respectively, using the cross-validation method. Present results showed that selected minerals in combination with chemometrics may aid to the geographical differentiation of Greek honeys. © 2016 Springer-Verlag Berlin Heidelberg

Omirou M.,Agricultural Research Institute | Dalias P.,Agricultural Research Institute | Costa C.,Agricultural Research Institute | Papastefanou C.,Cp FOODLAB LTD | And 3 more authors.
Environmental Pollution | Year: 2012

The high wastewater volumes produced during citrus production at pre- and post-harvest level presents serious pesticide point-source pollution for groundwater bodies. Biobeds are used for preventing such point-source pollution occurring at farm level. We explored the potential of biobeds for the depuration of wastewaters produced through the citrus production chain following a lab-to-field experimentation. The dissipation of pesticides used pre- or post-harvest was studied in compost-based biomixtures, soil, and a straw-soil mixture. A biomixture of composted grape seeds and skins (GSS-1) showed the highest dissipation capacity. In subsequent column studies, GSS-1 restricted pesticides leaching even at the highest water load (462 L m-3). Ortho-phenylphenol was the most mobile compound. Studies in an on-farm biobed filled with GSS-1 showed that pesticides were fully retained and partially or fully dissipated. Overall biobeds could be a valuable solution for the depuration of wastewaters produced at pre- and post-harvest level by citrus fruit industries. © 2012 Elsevier Ltd. All rights reserved.

Matthys C.,ILSI Europe A.i.s.b.l. | Bucchini L.,Hylobates Consulting | Busstra M.C.,Wageningen University | Cavelaars A.E.J.M.,Wageningen University | And 6 more authors.
European Journal of Clinical Nutrition | Year: 2010

Approaches through which reference values for micronutrients are derived, as well as the reference values themselves, vary considerably across countries. Harmonisation is needed to improve nutrition policy and public health strategies. The EURRECA (EURopean micronutrient RECommendations Aligned, Network of Excellence is developing generic tools for systematically establishing and updating micronutrient reference values or recommendations. Different types of instruments (including best practice guidelines, interlinked web pages, online databases and decision trees) have been identified. The first set of instruments is for training purposes and includes mainly interactive digital learning materials. The second set of instruments comprises collection and interlinkage of diverse information sources that have widely varying contents and purposes. In general, these sources are collections of existing information. The purpose of the majority of these information sources is to provide guidance on best practice for use in a wider scientific community or for users and stakeholders of reference values. The third set of instruments includes decision trees and frameworks. The purpose of these tools is to guide non-scientists in decision making based on scientific evidence. This platform of instruments will, in particular in Central and Eastern European countries, contribute to future capacity-building development in nutrition. The use of these tools by the scientific community, the European Food Safety Authority, bodies responsible for setting national nutrient requirements and others should ultimately help to align nutrient-based recommendations across Europe. Therefore, EURRECA can contribute towards nutrition policy development and public health strategies. © 2010 Macmillan Publishers Limited All rights reserved.

Omirou M.,Agricultural University of Athens | Omirou M.,Agricultural Research Institute of Cyprus | Papastefanou C.,Cp FoodLab LTD | Katsarou D.,University of Thessaly | And 4 more authors.
Plant and Soil | Year: 2012

Background and Aims: Rocket salad (Eruca sativa Mills) is one of the major leafy vegetables produced worldwide and has been characterized as a rich source of chemoprotective glucosinolates (GSL). The relationship between N fertilization and the resulting plant biomass and N status with GSL quantity and quality in rocket leaves was examined. Methods: A pot experiment was conducted, applying ten different N-rates and destructive sampling was carried out 15, 30 and 45 days after transplanting (DAT). The Mitscherlich equation was used to establish NO 3-N critical levels at each growth stage and as an indicator of N demand for relative maximum dry matter accumulation and glucosinolate content and composition was determined. Results: Glucosinolate content was significantly influenced by N rate, growth stage and their interaction. Different GSL types showed dissimilar responses to N fertilization: aliphatic GSLs were significantly reduced under increased N rates whereas indole GSL showed the reverse. Under excess N fertilization (>1.04 g/plant), dry matter accumulation remained constant, NO 3-N was significantly increased and total GSL content was significantly reduced, factors that could lead to an anticipated product quality decline. Conclusions: The application of the critical NO 3-N level approach used to identify optimal N fertilization rates for plant growth could serve as means to obtain optimized GSL content in the edible plant parts. © 2011 Springer Science+Business Media B.V.

Karabagias I.K.,University of Ioannina | Louppis A.P.,cp Foodlab Ltd. | Karabournioti S.,Attiki Honey | Kontakos S.,Democritus University of Thrace | And 2 more authors.
European Food Research and Technology | Year: 2016

The aim of the present study was to provide information on physicochemical (pH, free, lactonic, and total acidity, electrical conductivity, moisture, ash, lactonic/free acidity), colour parameters (L*, a*, b*), and mineral content (Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sb, Se, Si, Ti, Tl, V, Zn) of 34 commercial thyme honeys produced in Egypt, Morocco, Greece, and Spain, in terms of characterization and geographical discrimination using MANOVA/LDA, chemometric analyses. Conventional physicochemical and colour parameters were determined using official methods of analysis. Minerals were quantified using inductively coupled plasma optical emission spectroscopy (ICP-OES). Results showed that all honey samples analysed met the standard quality criteria set by the EU. In order to classify honeys according to geographical origin, MANOVA and LDA were applied in sequence. Respective classification rates based on cross-validation method were: 91.2, 76.5, and 88.2%, using 10 physicochemical and colour parameters, 12 minerals, and their combination, respectively. Testing whether the determined physicochemical parameters of commercial Mediterranean thyme honeys could be applied to routine quality control serving as honey origin predictors showed positive results. Finally, such a combination of data enhances honey quality control and authentication efforts, at an international level. © 2016 Springer-Verlag Berlin Heidelberg

Karabagias I.K.,University of Ioannina | Karabagias I.K.,University of Bari | Casiello G.,University of Bari | Kontakos S.,Democritus University of Thrace | And 3 more authors.
International Journal of Food Science and Technology | Year: 2016

The aim of this study was to investigate the impact of botanical origin and harvesting period on carbon stable isotope ratio (13C/12C), colour intensity (CI), radical scavenging activity (%RSA), P and Sn content of Greek unifloral honeys. Thus, twenty-four honey samples were collected during harvesting periods 2011–2012 and 2012–2013, from four different regions in Greece. 13C/12C ratios and minerals were determined using isotope ratio mass spectrometry (IRMS) and inductively coupled plasma optical–emission spectroscopy (ICP-OES), respectively. CI and %RSA were measured using spectrophotometric assays. Results showed that only 13C/12C values and %RSA were affected by both botanical origin and harvesting period (P < 0.05). Applying then chemometric analyses to the collected data set, honeys were correctly classified according to honey type (correct classification rate 87.5% and 79.2% using the original and cross-validation method, respectively). The use of different origin parameters has the potential to aid in honey authentication. © 2016 Institute of Food Science and Technology

PubMed | cp Foodlab Ltd., University of Ioannina, Democritus University of Thrace and Attiki Honey
Type: | Journal: Food chemistry | Year: 2016

The objective of the present study was: i) to characterize Mediterranean citrus honeys based on conventional physicochemical parameter values, volatile compounds, and mineral content ii) to investigate the potential of above parameters to differentiate citrus honeys according to geographical origin using chemometrics. Thus, 37 citrus honey samples were collected during harvesting periods 2013 and 2014 from Greece, Egypt, Morocco, and Spain. Conventional physicochemical and CIELAB colour parameters were determined using official methods of analysis and the Commission Internationale de l Eclairage recommendations, respectively. Minerals were determined using ICP-OES and volatiles using SPME-GC/MS. Results showed that honey samples analyzed, met the standard quality criteria set by the EU and were successfully classified according to geographical origin. Correct classification rates were 97.3% using 8 physicochemical parameter values, 86.5% using 15 volatile compound data and 83.8% using 13 minerals.

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