Article
Biochemical Research Methods
Gregory Bauwens, Sebastiano Panto, Giorgia Purcaro
Summary: The determination of mineral oil contamination levels in foods is a complex issue that requires methods like GC x GC for data interpretation and reliable integration of analytical results. The application of a new algorithm on an automated platform provides a novel solution for quantification and highlights the advantages of using an integrated platform.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Food Science & Technology
Jose Luis Hidalgo Ruiz, Javier Arrebola Liebanas, Jose Luis Martinez Vidal, Antonia Garrido Frenich, Roberto Romero Gonzalez
Summary: A method has been developed for the determination of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) in edible oils, achieving similar quantification limits to online extraction methods. The method involves isolation of MOSH and MOAH in a silver nitrated silica gel stationary phase prior to analysis by gas chromatography-flame ionization detector (GC-FID). The method was validated and applied to a total of 27 samples of different types of oil, detecting MOSH up to 79.2 mg/kg and MOAH up to 22.4 mg/kg.
Article
Food Science & Technology
Alessia Arena, Mariosimone Zoccali, Alessandra Trozzi, Peter Q. Tranchida, Luigi Mondello
Summary: This study investigated the presence of mineral oil hydrocarbons in 17 commercial samples of Omega-3 fatty acid dietary supplements. Levels of contamination ranged from 2.4 ppm to 375.7 ppm, with an average value of 49.9 ppm, mainly consisting of saturated hydrocarbons. Most samples were free of mineral oil aromatic hydrocarbons contamination.
Article
Food Science & Technology
Unni Cecilie Nygaard, Ashild Vege, Torleiv Rognum, Koni Grob, Christel Cartier, Jean-Pierre Cravedi, Jan Alexander
Summary: Humans are exposed to mineral oil saturated hydrocarbons (MOSH) from the diet. Female rats were exposed to different fractions of MOSH and showed increased liver and spleen weight, vacuolization, and granuloma formation. The effects varied depending on the MOSH fractions tested and were related to the accumulation of specific types of hydrocarbons. The accumulation of iso-alkanes and substituted cycloalkanes in rat tissues were similar to those in humans.
FOOD AND CHEMICAL TOXICOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Aizimaiti Maimaiti, Qi Wang, Fang Hao, Xianzhang Yang, Haizu Zhang, Jinqiang Tian
Summary: This study conducted experiments on the thermal stability of liquid hydrocarbons in carbonate reservoirs through gold-tube experiments. The results showed that temperature and inorganic minerals play important roles in oil cracking. Dolomite and calcite were found to inhibit the generation of methane and increase the thermal stability of crude oil. The presence of carbonate minerals is significant in analyzing the potential of gas generation, the evolution of carbon isotope composition, and the prediction of hydrocarbon phase behavior during crude oil cracking.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Jun-Lin Wang, Hai-Zhen Wei, A. E. Williams-Jones, Ge Dong, Yuan-Feng Zhu, Shao-Yong Jiang, Jing Ma, Simon Hohl, Xi Liu, Yin-Chuan Li, Jian-Jun Lu
Summary: The behavior of silver in hydrothermal ore-forming systems has been studied in terms of equilibrium and Rayleigh-type isotope fractionation. Experimental and theoretical investigations reveal that silver follows a second-order kinetic reaction model during transport and deposition processes, and its isotope fractionation follows a Rayleigh-type fractionation model. A new silver isotope geothermometer is proposed for determining temperature in silver-bearing hydrothermal systems.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Food Science & Technology
Birgit Mertens, Annelies Van Heyst, Heidi Demaegdt, Imke Boonen, Kathy Van den Houwe, Severine Goscinny, Marc Elskens, Els Van Hoeck
Summary: There is no direct health concern related to mineral oil saturated hydrocarbons (MOSH) exposure for the Belgian population, but more data are needed for a proper risk assessment of aromatic hydrocarbons (MOAH).
FOOD AND CHEMICAL TOXICOLOGY
(2021)
Article
Engineering, Environmental
Lam Ngoc Trac, Karina Knudsmark Sjoholm, Heidi Birch, Philipp Mayer
Summary: This study introduced two passive dosing approaches for whole UVCB toxicity testing: headspace PD and silicone rod PD. Results showed that dose-response curves for petroleum products were similar across different dosing approaches and tested species, while the difference between essential oils and PD systems was an order of magnitude.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Biochemical Research Methods
Alessia Arena, Mariosimone Zoccali, Ivana Bonaccorsi, Monica Mondello, Peter Q. Tranchida, Luigi Mondello
Summary: This study analyzed and discussed the contamination of mineral oil hydrocarbons in Citrus essential oils using an online liquid-gas chromatography system. Various degrees of mineral oil saturated hydrocarbon (MOSH) contamination were found in the cold-pressed (CP) essential oils, ranging from 10.7 to 338.4 mg kg(-1). However, no MOSH contamination was detected in the distilled essential oils. The level of mineral oil aromatic hydrocarbons in all samples was below the limit of quantification.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Review
Biochemical Research Methods
Gregory Bauwens, Aleksandra Gorska, Giorgia Purcaro
Summary: Mineral oil hydrocarbons (MOH) are analyzed using the online coupled liquid chromatography-gas chromatography with flame ionization detection (LC-GC-FID) method, which lacks sufficient separation performance and may result in coelution of interfering compounds. Comprehensive two-dimensional gas chromatography (GC x GC) has proven to be relevant in overcoming the weaknesses of the LC-GC method and meeting the analytical requirements. This paper highlights the contributions of GC x GC in understanding MOH, meeting the determination requirements, and overcoming analytical and toxicological challenges.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Marco Nestola
Summary: A new epoxidation approach was developed in this study to successfully epoxidize persistent olefins in refined oils. An optimized and miniaturized workflow for sample preparation and analysis led to a robust method that was tested and validated for edible oils and fats.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Biochemistry & Molecular Biology
Jyoti Prakash Maity, Yi-Hsun Huang, Hsien-Feng Lin, Chien-Yen Chen
Summary: The study assessed microbial diversity during an oil spill in the marine ecosystem of Kaohsiung port, Taiwan. It found that the boundary region of the spilled oily water had higher microbial taxa and diversities compared to control and center of the spill area. Indigenous bacteria like Staphylococcus saprophyticus and Bacillus megaterium were efficient in degrading oil components, making them useful for environmental cleanup. The marine microbial community plays a crucial role in biodegrading oil and restoring the ecosystem after ecological selection and adaptation processes.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2021)
Review
Chemistry, Analytical
Nicola Sdrigotti, Maurine Collard, Giorgia Purcaro
Summary: The paper explores the interrelationship between hyphenated techniques and mineral oil analysis, highlighting how their mutual interaction has driven technological advancements and knowledge growth, supporting the complex task of mineral oil determination in food.
JOURNAL OF SEPARATION SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Ali A. El-Samak, Deepalekshmi Ponnamma, Mohammad K. Hassan, Samer Adham, Alamgir Karim, Ali Ammar, Maha Alser, Samar Shurbaji, Nahla O. Eltai, Mariam Al Ali Al-Maadeed
Summary: Hydrophobic microporous polystyrene fibers were fabricated by adding zinc oxide and silver-doped zinc oxide nanomaterials, demonstrating enhanced oil-adsorbing properties and hydrophobicity. The nanoparticles exhibited antibacterial activity, making these composites promising for water treatment applications.
Article
Environmental Sciences
Carlo Pastore, Antonella Angelini, Giuseppe Mininni, Camilla Maria Braguglia
Summary: Characterization of organic contaminants in sewage sludge is crucial for appropriate management practices. In this study, the determination of C10-C40 hydrocarbon content in sludge was optimized, taking into account the complexity of the organic substances present. A new simple procedure was developed and tested on samples from wastewater treatment plants, yielding confident results compared to conventional methods. The analysis revealed that a significant proportion of the hydrocarbon content was attributed to commercial polyelectrolytes used in conditioning processes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Food Science & Technology
Beatriz Quintanilla-Casas, Giulia Strocchi, Julen Bustamante, Berta Torres-Cobos, Francesc Guardiola, Wenceslao Moreda, Jose Manuel Martinez-Rivas, Enrico Valli, Alessandra Bendini, Tullia Gallina Toschi, Alba Tres, Stefania Vichi
Summary: The study developed an authentication model based on TAG profiling for the detection of illegal blends of various vegetable oils with olive oil. The model proved to be efficient and applicable, with high accuracy in classifying mixed samples and an overall correct classification rate.
Article
Food Science & Technology
Boualem Chennit, Maria del Carmen Perez-Camino, Raquel B. Gomez-Coca, Wenceslao Moreda, Lilya Boudriche, Khodir Madani
Summary: This study characterized the fatty minor compounds of Kabylian virgin olive oils, including the content of sterols, triterpenic dialcohols, diterpenic alcohols, aliphatic alcohols, triterpenic alcohols, FAAEs, and waxes, in oils from different olive cultivars. The analysis showed distinct differences in the composition of these compounds among the oils, with Azeradj-VOO standing out for its high phytosterol content.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2021)
Article
Food Science & Technology
Enrico Valli, Andrea Milani, Ana Srbinovska, Erica Moret, Sabrina Moret, Alessandra Bendini, Wenceslao Moreda, Tullia Gallina Toschi, Paolo Lucci
Summary: A simple method for analyzing minor compounds in olive and sunflower oils has been developed, allowing for reliable quantification and assessment of oil authenticity. The method is straightforward, with the ability to analyze various oil samples effectively.
Article
Food Science & Technology
Manuel Leon-Camacho, Maria del Carmen Perez-Camino
Summary: The unsaponifiable fraction of oils and fats, especially the composition of sterols, is key for characterizing and authenticating oil samples. A new supported liquid extraction technique is proposed to improve the analysis and characterization of the unsaponifiable fraction, ensuring high purity and easier analysis of sterols and triterpenic dialcohols. This method offers economic and time-saving benefits, increasing productivity and enhancing working safety in business control laboratories.
Article
Agriculture, Dairy & Animal Science
Gloria Pascual-Chagman, Juan Santa-Cruz-Olivos, Alyssa Hidalgo, Fernando Benavente, M. Carmen Perez-Camino, Alejandrina Sotelo-Mendez, Luz Maria Paucar-Menacho, Christian R. Encina-Zelada
Summary: The oil from two Andean lupins (Lupinus mutabilis) varieties from Peru, Andenes and Cornirn, was extracted by expeller press. The study evaluated the extraction yield, proximal composition, physico-chemical properties, total polyphenol content, and antioxidant capacity of the oils. Andenes variety showed higher oil yield, better quality, and higher antioxidant capacity.
SCIENTIA AGROPECUARIA
(2021)
Article
Nutrition & Dietetics
Claudia Reyes-Goya, Alvaro Santana-Garrido, Gema Aguilar-Espejo, M. Carmen Perez-Camino, Alfonso Mate, Carmen M. Vazquez
Summary: This study demonstrates the beneficial effects of wild olive oil, ACE, in reducing blood pressure and counteracting hypertension-induced vascular alterations. Regular inclusion of ACE oil in the diet can alleviate vascular remodeling and endothelial dysfunction typically found in arterial hypertension.
BRITISH JOURNAL OF NUTRITION
(2022)
Article
Chemistry, Applied
Rosa Maria Alonso-Salces, Luis Angel Berrueta, Beatriz Quintanilla-Casas, Stefania Vichi, Alba Tres, Maria Isabel Collado, Carlos Asensio-Regalado, Gabriela Elena Viacava, Aimara Ayelen Poliero, Enrico Valli, Alessandra Bendini, Tullia Gallina Toschi, Jose Manuel Martinez-Rivas, Wenceslao Moreda, Blanca Gallo
Summary: This study utilized H-1 NMR fingerprinting of edible oils and multivariate classification and regression models to accurately identify olive oils and their blends with other vegetable oils, providing support for regulations and control bodies. The models showed stable binary classification for olive oil type and precise determination of percentage of vegetable oil in the mixture. The approach demonstrated satisfactory performance with blind samples, confirming its potential for authenticity and traceability assurance.
Article
Chemistry, Applied
Raquel B. Gomez-Coca, Maria del Carmen Perez-Camino, Paul Brereton, Alessandra Bendini, Tullia Gallina Toschi, Wenceslao Moreda
Summary: In this study, a method for determining FAEE in olive oils using SPE/GC-FID was presented. The method was validated and internationally tested, showing good linearity, low LOD and LOQ, and stable repeatability. Additionally, the method provided advantages in terms of time and solvent reduction compared to the official method.
Article
Food Science & Technology
Ana Maria Munoz, Sandra Casimiro-Gonzales, Raquel B. Gomez-Coca, Wenceslao Moreda, Ivan Best, Maria Isabel Cajo-Pinche, Juan Francisco Loja, Elena Ibanez, Alejandro Cifuentes, Fernando Ramos-Escudero
Summary: This study compared the physicochemical properties, total polyphenol content, and antioxidant activity of sinami oil obtained using four extraction methods. The results showed that ultrasound-assisted extraction had higher polyphenol content and antioxidant activity, while supercritical fluid extraction resulted in lower pigment content. Principal component analysis was used to classify sinami oil based on its physicochemical properties, polyphenol content, and antioxidant activity.
Article
Biochemistry & Molecular Biology
Nancy Chasquibol, Rafael Alarcon, Billy Francisco Gonzales, Axel Sotelo, Lourdes Landoni, Gabriela Gallardo, Belen Garcia, M. Carmen Perez-Camino
Summary: Sacha inchi Plukenetia huayllabambana oil was co-microencapsulated with antioxidant extracts of camu camu and mango skins, and the resulting formulation was used to prepare a functional powdered beverage with high omega-3 fatty acids and antioxidant activity.
Article
Food Science & Technology
Raquel B. Gomez-Coca, Maria Del Carmen Perez-Camino, Wenceslao Moreda
Summary: The aim of this study was to determine the content of mineral oil hydrocarbons (MOH) in olive pomace oil and contribute to the monitoring required by EFSA. The study provided information on the concentrations and molecular mass profiles of MOH, as well as identified the structures that prove the harmless nature of the mineral oil aromatic hydrocarbon (MOAH) fraction. The results showed that the C25-C35 fraction is the main fraction to which humans are exposed through olive pomace oil, with concentrations dependent on the extraction process.
Article
Agriculture, Multidisciplinary
M. Luisa Hernandez, Cristina Munoz-Ocana, Pilar Posada, M. Dolores Sicardo, Damaso Hornero-Mendez, Raquel B. Gomez-Coca, Angjelina Belaj, Wenceslao Moreda, Jose M. Martinez-Rivas
Summary: The study investigates the variability of squalene content in a collection of 36 olive cultivars and identifies two cultivars with extremely high and low squalene content. The researchers also clone cDNA sequences encoding squalene synthases from olive and determine the gene mainly involved in squalene biosynthesis. The study highlights the transcriptional regulation of squalene biosynthesis in water-stressed olive mesocarp.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)