Roxana Elena Ionete

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Methodologies for chemometric classification of five authentic red wine varieties from Murfatlar wine center, Romania, young and aged are reported. The discriminant analysis based on several anthocyanins, organic acids, (13)C/(12)C, (18)O/(16)O and D/H isotopic ratios, (1)H and (13)C NMR fingerprints revealed a very satisfactory categorization of the wines,(More)
This paper presents a study concerning the isotopic fingerprint ((18)O and (13)C) of some wines prepared from relevant Romanian grape varieties (e.g. Feteasca Alba (FA), Feteasca Regala (FR) and Cabernet Sauvignon (CS)) obtained in different vintage years (2002, 2003, 2004, 2007 and 2008). These wines were obtained from different vineyards having a(More)
Trace elemental analysis, besides its ability to determine stable isotopes ratios, represents a possible complementary tool useful to differentiate wines based on their regional origins. Wines and their provenance soils from two major wine producing areas in Southeast Romania ('Valea Calugareasca' and 'Murfatlar'), and also wine from the region of Moldova(More)
Dangerous to health through contamination of food dietary, ochratoxin A (OTA) is a potent nephrotoxic mycotoxin, being produced by Aspergillus and Penicillium species. Certain common foods based on wheat followed by oats, rice and raisins, spices, dried fruits, beer, coffee, grape juice and wine are major sources of human exposure to OTA, mainly in(More)
Trans-resveratrol (3,5,4'-trihydroxy-trans-stilbene) is naturally present in the skin of grapes and therefore is expected to occur in grape products. Recently, there has been a renewal of interest in wine as medical treatment for various disorders. In this study, berry skins of five red grape varieties were analysed at weekly intervals for trans-resveratrol(More)
DIANA FLORESCU, ANDREEA MARIA IORDACHE, DIANA COSTINEL, ELENA HORJ, ROXANA ELENA IONETE, MONICA CULEA 1 National R&D Institute for Cryogenics and Isotopic Technologies, Uzinei Str. 4, RO-240050, Rm. Valcea, Romania, Email: diana.florescu@icsi.ro, E-mail: andreea.iordache@icsi.ro, E-mail: roxana@icsi.ro, E-mail: diana@icsi.ro 2 Univ. Babes-Bolyai, Dept. of(More)
One of the most important tributaries of the Danube River in Romania, the Olt River, was characterized in its middle catchment in terms of the isotopic composition using continuous flow-isotope ratio mass spectrometry (CF-IRMS). Throughout a period of 10 months, from November 2010 to August 2011, water samples from the Olt River and its more important(More)
Tracing pollution sources and transformation of nitrogen compounds in surface- and groundwater is an issue of great significance worldwide due to the increased human activity, translated in high demand of water resources and pollution. In this work, the hydrological basin of an important chemical industrial platform in Romania (Ramnicu Valcea industrial(More)
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