Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA

Acalá del Río, Spain

Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA

Acalá del Río, Spain
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Cuevas F.J.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Pereira-Caro G.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Moreno-Rojas J.M.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Munoz-Redondo J.M.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Ruiz-Moreno M.J.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA
Food Control | Year: 2017

This study aims to develop a robust chemometric approach to make it possible to authenticate European premium organic orange juices. The metabolomic fingerprinting and the volatile profile of commercial orange juices were analyzed by HPLC-HR-MS and HS-SPME-GC-MS. These data were used for authentication (classification of orange juices) purposes, using principal component analysis, hierarchical cluster analysis and partial least squares discriminant analysis, which provided acceptable results. Some flavonoids, fatty acids, aldehydes and esters were identified as potential markers involved in the differentiation of organic juices. Data fusion strategies were tested and ‘mid-level’ data fusion achieved an optimal model for classifying organic or conventional orange juices with a sensitivity and specificity of 100%, thus improving the individual models. This approach, combining mass spectrometry techniques, chemometrics and data fusion, likely provides a new framework for the authentication of organic foodstuffs. © 2017 Elsevier Ltd


Zavattaro L.,University of Turin | Bechini L.,University of Milan | Grignani C.,University of Turin | van Evert F.K.,Wageningen University | And 10 more authors.
European Journal of Agronomy | Year: 2017

To evaluate the agronomic value of animal manure, we quantified the effects of pedo-climatic, crop and management factors on crop productivity, N use efficiency, and soil organic matter, described with simple indicators that compare manures with mineral fertilizers. We selected 80 European long-term field experiments that used bovine farmyard manure or bovine liquid slurry, alone (FYM and SLU) or combined with mineral fertilizers (FYMm and SLUm), and compared them to mineral fertilizer only reference treatments. We collected 5570 measurements from 107 papers. FYM produced slightly lower crop yields (−9.5%) when used alone and higher (+11.3%) yields when used in combination with N fertilizer (FYMm), compared to those obtained using mineral fertilizers only. Conditions promoting manure-N mineralization (lighter soil texture, warmer temperature, longer growing season, and shallower incorporation depth) significantly increased the effect of FYM/FYMm on crop yield and yield N. The production efficiency of FYM (yield:N applied ratio) was slightly lower than that of mineral fertilizers (-1.6%). The apparent N recoveries of FYM and FYMm were 59.3% and 78.7%, respectively, of mineral fertilizers. Manured soils had significantly higher C (+32.9% on average for FYM and FYMm) and N (+21.5%) concentrations. Compared to mineral fertilizers, yield was reduced by 9.1% with SLU, but not with SLUm. Influencing factors were similar to those of FYM/FYMm. Efficiency indicators indicated SLU (but not SLUm) was less effective than mineral fertilizers. Slurry significantly increased SOC (on average for SLU and SLUm by +17.4%) and soil N (+15.7%) concentrations. In conclusion, compared to mineral N fertilizers, bovine farmyard manure and slurry were slightly less effective on the crop, but determined marked increases to SOC and soil N, and thus, to long-term soil fertility maintenance. © 2017 Elsevier B.V.


Perez-Romero L.F.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Arroyo F.T.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Santamaria C.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Camacho M.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA | Daza A.,Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA
Acta Alimentaria | Year: 2014

The fruit quality parameters of Prunus armeniaca L. cv 'Ninfa' grafted on 'Myrobalan 29C' (Prunus cerasifera Ehrh.) and 'Real Fino' apricot seedling (Prunus armeniaca L.) were analysed in an experimental orchard under organic management. The study was performed between 2010 and 2012 in the province of Seville (SW Spain). Colour, fruit and stone weights, firmness, soluble solid concentration, and acidity were measured for fruit quality evaluation. Trunk cross-sectional area, main branches, and fruit yield were also determined. In general, 'Myrobalan 29C' rootstock produced fruit slightly larger in size and with a bigger weight. By contrast, apricots on 'Myrobalan 29C' had less firmness and a lower solid soluble concentration than on 'Real Fino'. There was little difference in the colour, acidity, and stone dry weights. Trees on 'Real Fino' had larger areas of trunk and branches but no significant differences were obtained in relation to fruit yields.


PubMed | Andalusian Institute of Agricultural and Fisheries Research and Training IFAPA
Type: | Journal: Food chemistry | Year: 2016

A targeted approach using HS-SPME-GC-MS was performed to compare flavour compounds of Navelina and Salustiana orange cultivars from organic and conventional management systems. Both varieties of conventional oranges showed higher content of ester compounds. On the other hand, higher content of some compounds related with the geranyl-diphosphate pathway (neryl and geranyl acetates) and some terpenoids were found in the organic samples. Furthermore, the partial least square discriminant analysis (PLS-DA) achieved an effective classification for oranges based on the farming system using their volatile profiles (90 and 100% correct classification). To our knowledge, it is the first time that a comparative study dealing with farming systems and orange aroma profile has been performed. These new insights, taking into account local databases, cultivars and advanced analytical tools, highlight the potential of volatile composition for organic orange discrimination.

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