Raluca Popescu’s research while affiliated with Institutul National de Cercetare Dezvoltare pentru Tehnologii Criogenice si Izotopice and other places

... Amino acids, by definition are essential biomolecules that acquire tremendous significance in tissue protein building and human health. These are documented to play significant role in diseases like infertility, neurological dysfunction, and intestinal disorders, with positive outcomes and could also be utilized as fingerprints for uncovering the varietal origin of fruits (Botoran et al., 2019;Turkiewicz et al., 2020). Another crucial factor driving the apple aroma during production is the harvesting time, with earlier harvesting causing a decrease in the aroma spectrum (Radenkovs et al., 2018). ...

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Selected fruit pomaces: Nutritional profile, health benefits, and applications in functional foods and feeds

... Several factors influence the nature and content of the fatty acids: walnut variety (Gharibzahedi et al., 2014;Miraliakbari & Shahidi, 2008;Poggetti et al., 2018), growth conditions (Crews et al., 2005;Popescu et al., 2019), harvest period (Maguire et al., 2004), genotype (Poggetti et al., 2018;Zhao, Yang, et al., 2020), and extraction method (Gharibzahedi et al., 2013). Crews et al. (2005) (Gao et al., 2018). ...

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Research progress on Walnut oil: Bioactive compounds, health benefits, extraction methods, and medicinal uses

... If such processes occur during the growing season, they will most likely be reflected in the OBT of the vine. In the absence of more detailed information concerning the environmental tritium level and the fractionation of tritium by meteoric and transpiration process, the useful tools to be used together with tritium level are stable isotopes of oxygen, hydrogen, and carbon [32]. ...

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Tritium Behavior from Vine to Wine

... Thus, to get a whole image on both primary and secondary metabolites and other specific origin markers, several combined techniques should be merged. Alongside the conventional analytical approach using gas chromatography/mass spectrometry [4,5] and liquid chromatography/mass spectrometry [6,7], that also assume different extraction procedures, the nuclear magnetic resonance-based metabolomics [8,9] and stable isotopes investigation [10], along with chemometrics, are of interest for checking the conformity of fruit-based products. ...

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Amino Acid Profile of Fruits as Potential Fingerprints of Varietal Origin

... Factors such as grape variety, production area, year of harvest, type of soil, technology applied, and climatic conditions are all important in determining the chemical composition of wines [2]. ...

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Carbon-Isotope Ratio (δ13C) and Phenolic-Compounds Analysis in Authenticity Studies of Wines from Dealu Mare and Cotnari Regions (Romania)

... These findings highlight the importance of soil composition in shaping the isotopic fingerprints of grapes and, consequently, wine. For example, the δ 13 C values of ethanol in Romanian wine are −27.4 ± 1.0‰ [29], −28.7 ± 0.9‰ in Japanese wine [30], −28.2 ± 0.9‰ in Austrian wine [2], −28.4 ± 0.9‰ in Swiss wine [31], and −28.4 ± 0.8‰ in Slovenian wine [2]. The δ 18 O value of water in wine exhibits a strong correlation with the spatial climatic and precipitation δ 18 O patterns associated with grape harvest [17,32,33]. ...

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Advancing Stable Isotope Analysis for Alcoholic Beverages’ Authenticity: Novel Approaches in Fraud Detection and Traceability

... The hydrogen and oxygen isotope compositions of the collected creek water plot close to the Global Meteoric Water Line (GMWL; Craig, 1961) and the Local Meteoric Water Line (LMWL, Fig. 9; Ionete et al., 2015). The LMWL was defined based on the isotope data from Bodoc spring that is located 30 km away from the present study area. ...

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Surface occurrence of dawsonite and natural CO2 emanation in Covasna, in the Eastern Carpathians: A stable isotope study

... In April 2009, the U.S. Food and Drug Administration (FDA) formally introduced the concept of Economically Motivated Adulteration (EMA), which categorizes adulteration into six categories based on the type of adulteration [63]. The adulteration of alcoholic beverages, particularly through the addition of exogenous ethanol and unfermented flavoring substances, is illegal and widely regarded as a deceptive practice aimed at reducing production costs, increasing profit margins, or misleading consumers [64]. The main categories of alcohol adulteration include the addition of ethanol, water, or sugar, which poses significant challenges for both regulators and consumers. ...

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Advancing Stable Isotope Analysis for Alcoholic Beverages’ Authenticity: Novel Approaches in Fraud Detection and Traceability

... PCA is a multidimensional analysis that allows the transformation of the original variables into new ones, called principal components. The role of principal components is to explain the maximum amount of variance with the smallest number of components [59,60]. ...

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Classification and Antioxidant Activity Evaluation of Edible Oils by Using Nanomaterial-Based Electrochemical Sensors

... A different approach focused on differentiating the wines produced in different months revealed higher contents of glycerol, succinic acid, and 2,3-butanediol for products obtained in December, while proline and lactic acid were more concentrated in wines from July, demonstrating the influence of climatic conditions on metabolite content [71]. However, the study realized by Geană et al. [72] indicates a clear discrimination between wines from different years based on alanine and carbohydrates combined with certain anthocyanins and stable isotopes. ...

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Metabolic Profiling and Stable Isotope Analysis of Wines: Pilot Study for Cross-Border Authentication