مقالات علوم غذایی

Stable isotope ratio analysis of different European raspberries, blackberries, blueberries, currants and strawberries

To date the stable isotope ratios of berries have never been extensively explored. In this work the H, C, N and O isotopic ratios of 190 samples of different soft fruits (strawberries, raspberries, blueberries, blackberries and currants) produced in a northern Italian region and at two sites in Romania and Poland collected over three harvest years are presented and discussed.The different soft fruits showed a typical range for one or more isotopic parameters that can be used to verify the authenticity of the fruit composition declared on the label. The δ13C and δ15N of pulp and the δ18O of juice can be considered effective tools for identifying the different geographical origin of fruit. A significant effect of crop cover on juice δ18O and fertilisation practices on pulp δ15N was demonstrated and must be considered with attention when evaluating data.
Isotopic and elemental characterisation of Slovenian apple juice according to geographical origin: Preliminary results
Food Chemistry 203 (2016)
Karmen Bizjak Bat, Klemen Eler, Darja Mazej, Branka Mozetič Vodopivec, Ines Mulič, Peter Kump, Nives Ogrinc
This study examined the applicability of stable isotope and multi-element data for determining the geographical origin of fresh apple juices. Samples included three apple cultivars (Idared, Golden Delicious and Topaz) harvested in 2011 and 2012 from five different geographical regions of Slovenia. Regional discrimination of the juice samples was most successful when using linear discriminant analysis (LDA) and taking into account the following parameters: δ2H and δ18O content of juice water; δ15N and δ13C content of the pulp, (D/H)I and (D/H)II in ethanol and the concentration of S, Cl, Fe, Cu, Zn and Sr. Overall prediction ability was 83.9%. The factors that best distinguished the different types of cultivar were the δ2H and δ18O content of fruit juice water; the δ13C and (D/H)I content of ethanol; and the concentration of S, Mg, K, Cu, and Ti. Prediction ability, taking into account all ten parameters, was 75.8%.
Verifying the geographical origin of poultry: The application of Stable Isotope and Trace Element (SITE) Analysis
Food Control 67 (2016)
Stable and radiogenic isotopes as indicators of agri-food provenance: Insights from artisanal cheeses from Quebec Canada
International Dairy Journal (2015)
Characterization of Slovenian apples with respect to their botanical and geographical origin and agricultural production practice
Food Technology and Biotechnology (2012)

اطلاعات تماس

اراک - میدان بسیج - بلوار کربلا - دانشگاه اراک - آزمایشگاه مرکزی- مرکز تحقیقات ایزوتوپهای پایدار

Email: a-sirl@araku.ac.ir

تلفن : ۳۲۶۲۲۸۲۲ ۰۸۶ - ۳۲۶۲۲۸۲۰ ۰۸۶

امکانات

آزمایشگاه تحقیقاتی ایزوتوپهای پایدار شامل یک آزمایشگاه دستگاهی، یک آزمایشگاه آماده سازی نمونه و یک انبار نگهداری نمونه ها می باشد.

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