Explanipedia

Unraveling overlapping processes in the sorption and in the release dynamics of DMSO vapor in paper Open

Raimund Teubler, Alexandra Serebrennikova, Erich Leitner, Maximilian Fuchs, Robert Saf , et al. · 2025

The sorption and release of gases in complex porous materials often involves multiple simultaneous processes. It is difficult to distinguish the dynamics of individual processes from experiments that only allow access to the combined overa…

Analysis of orthodontic aligner biocompatibility: leachable compounds of different aligner materials Open

Thomas Wendl, Erich Leitner, Brigitte Wendl, Peter Proff · 2025

Objectives the aim of this study was to clarify the biocompatibility of different tooth repositioning splints (aligners). This included the characterization of the volatile fraction by headspace solid phase microextraction coupled to gas c…

Combining simple analytical methods enables the prediction of volatile transport through paper Open

Raimund Teubler, Alexandra Serebrennikova, Lisa Hoffellner, Erich Leitner, Karin Zojer · 2024

Paper is a widely used material in our daily life and has diverse applications. However, the range of possible applications is limited due to legal requirements for the permeability of volatile organic compounds (VOCs) through the inherent…

Kinetics of Organic Volatile Desorption from Cellulose-Based Materials Open

Alexandra Serebrennikova, Raimund Teubler, Erich Leitner, Karin Zojer · 2024

This contribution investigates the mathematical description of the release of volatile organic compounds (VOCs) from cellulose-based porous materials, particularly paper, extensively used in food packaging. Prior research has shown that mi…

Determination of total extractable organofluorine (EOF) in food contact materials and target and non-target analysis of per- and polyfluoroalkyl substances using LC–MS/MS and LC–HRMS simultaneously coupled to ICP-MS Open

Tengetile N. Nxumalo, Abdullah Akhdhar, Viktoria Müller, Amnah Al Zbedy, Andrea Raab , et al. · 2024

Food contact materials (FCMs) from three countries were analysed for all extractable organofluorines (EOFs) from the materials and subsequently by target and non-target analysis for per- and polyfluoroalkyl substances (PFAS). The EOF varie…

Analysis of per- and polyfluoroalkyl substances (PFAS) in raw materials intended for the production of paper-based food contact materials – evaluating LC-MS/MS versus total fluorine and extractable organic fluorine Open

Milica Jovanović, Viktoria Müller, Jörg Feldmann, Erich Leitner · 2024

Per- and polyfluoroalkyl substances (PFAS) analysis has become crucial due to their presence in the environment, their persistence and potential health risks. These compounds are commonly used in food contact materials (FCM) as a coating t…

Human Sterols Are Overproduced, Stored and Excreted in Yeasts Open

Astrid Radkohl, Veronika Schusterbauer, Lukas Bernauer, Gerald N. Rechberger, Heimo Wolinski , et al. · 2024

Sterols exert a profound influence on numerous cellular processes, playing a crucial role in both health and disease. However, comprehending the effects of sterol dysfunction on cellular physiology is challenging. Consequently, numerous pr…

Mouldy and musty off-flavour in garlic is caused by the presence of 2,4,6-trichloroanisole Open

Sabrina Stranig, Erich Leitner, Dorothea Leis, Britta Siegmund · 2023

The occurrence of garlic with expressed mouldy, musty and cork taint-like off-flavour is of serious concern for the food industry as it may cause significant economic damage. In this study, we investigated a total of 42 garlic samples for …

Physics informed neural networks reveal valid models for reactive diffusion of volatiles through paper Open

Alexandra Serebrennikova, Raimund Teubler, Lisa Hoffellner, Erich Leitner, Ulrich Hirn , et al. · 2023

Predictive models for the transport of volatile organic compounds in paper need to consider the complex interplay of diffusion, adsorption, desorption, or chemical reactions. The relative importance of each of these processes is determined…

Comparison of gas chromatographic techniques for the analysis of iodinated derivatives of aromatic amines Open

Nerea Lorenzo-Parodi, Erich Leitner, Torsten C. Schmidt · 2023

Roasting and Cacao Origin Affect the Formation of Volatile Organic Sulfur Compounds in 100% Chocolate Open

Aaron M. Wiedemer, Alan P. McClure, Erich Leitner, Helene Hopfer · 2023

Chocolate is a highly appreciated food that develops its characteristic flavors in large part during the roasting of cacao beans. Many functional classes have been noted for their importance to chocolate flavor, including volatile organic …

One-dimensional and comprehensive two-dimensional gas chromatographic approaches for the characterization of post-consumer recycled plastic materials Open

Andrea Hochegger, Sebastiano Pantò, Nick S. Jones, Erich Leitner · 2023

Determination of Total Extractable Organofluorine (EOF) in Foodcontact Materials and Targeted and Non-Targeted Analysis of PFAS Using LC-MS/MS and LC-HRMS Simultaneously Coupled to CPMS/MS Open

Tengetile N. Nxumalo, Abdullah Akhdhar, Viktoria Müller, Amnah Al Zbedy, Andrea Raab , et al. · 2023

Combination of Multidimensional Instrumental Analysis and the Ames Test for the Toxicological Evaluation of Mineral Oil Aromatic Hydrocarbons Open

Andrea Hochegger, Reinhard Wagenhofer, Sanja Savić, Elisa Mayrhofer, Michael Washüttl , et al. · 2022

Mineral oil aromatic hydrocarbons (MOAHs) include mutagenic and carcinogenic substances and are considered a potential health risk. Current methods address the total MOAH content but cannot address the actual toxicological hazard of indivi…

Transport of Organic Volatiles through Paper: Physics-Informed Neural Networks for Solving Inverse and Forward Problems Open

Alexandra Serebrennikova, Raimund Teubler, Lisa Hoffellner, Erich Leitner, Ulrich Hirn , et al. · 2022

Transport of volatile organic compounds (VOCs) through porous media with active surfaces takes place in many important applications, such as in cellulose-based materials for packaging. Generally, it is a complex process that combines diffu…

The Interaction of Cellulose Thin Films With Small Organic Molecules—Comparability of Two Inherently Different Methods Open

Lisa Hoffellner, Elias Michael Henögl, Patrick Petschacher, Robert Schennach, Erich Leitner · 2021

Paper is the material of choice for a large range of applications because it has many favorable environmental and economic characteristics. Especially in the packaging sector of dry goods and food products, paper has found unique applicati…

How Different Carryover Pitch Extractive Components are Affecting Kraft Paper Strength Open

Jussi Lahti, Roman Poschner, Werner Schlemmer, Andrea Hochegger, Erich Leitner , et al. · 2021

We present how harmful different wood extractives carried over to paper mill with unbleached softwood Kraft pulp are for the strength of packaging papers and boards. The investigations were done by simulating industrial papermaking conditi…

Characterization of Volatile Compounds and Flavor in Spirits of Old Apple and Pear Cultivars from the Balkan Region Open

Nermina Spaho, Fuad Gaši, Erich Leitner, M. Blesić, Asima Akagić , et al. · 2021

This study was conducted with the aim of developing fruit spirits by utilizing old (autochthonous) apple and pear cultivars that can be attractive to both consumers and producers. Consumers of spirits could enjoy the unique flavor, and pro…

Mineral oil risk assessment: Knowledge gaps and roadmap. Outcome of a multi-stakeholders workshop Open

Andrea Hochegger, Sabrina Moret, Lucie Geurts, Thomas Gude, Erich Leitner , et al. · 2021

Comparison of methods to simulate permeation through cellulose-based food contact materials Open

Andrea Hochegger, Lisa Hoffellner, Erich Leitner · 2021

Paper is used in many different applications, due to its numerous favourable characteristics. An inherent property of paper is its porosity. One of the main effects of this porosity is that it allows the possibility of mass transport throu…

Investigating the Winemaking Potential of Enchantment, a New <i>Vitis</i> Hybrid Teinturier Cultivar Open

Sarah Mayfield, Renee T. Threlfall, Dorothea Leis, Luke R. Howard, Erich Leitner , et al. · 2021

Enchantment is a Vitis hybrid released from the University of Arkansas System Division of Agriculture winegrape breeding program in 2016. This new teinturier cultivar has potential for producing high-quality wines. The effects of oa…

Comparison of the Functional Barrier Properties of Chitosan Acetate Films with Conventionally Applied Polymers Open

Andrea Walzl, Samir Kopacic, Wolfgang Bauer, Erich Leitner · 2020

The current demand to cut back on the use of plastic materials has brought a major boost to the search for bio-based alternatives. Not only are plastic bags and primary food packaging under scrutiny here, but also those materials used as f…

Rapid Separation and Quantitative Analysis of Complex Lipophilic Wood Pulp Extractive Mixtures Based on 2D Thin Layer Chromatography Open

Werner Schlemmer, Melissa Egger, Madeline Dächert, Jussi Lahti, Markus Gschiel , et al. · 2020

We present a rapid method based on 2D thin layer chromatography (TLC) for the simultaneous separation and quantification of organic, lipophilic extractives occurring in lignocellulosic biorefineries. The separation is based on alkaline fol…

SORPTION BEHAVIOR OF ORGANIC MOLECULES ON POROUS PAPER MATERIAL Open

Lisa Hoffellner, Erich Leitner · 2020

The application of paper in a large range of fields is highly desired because it has a variety of favorable characteristics.Especially in the sector of food packaging, paper has found unique applications.In order to determine the applicabi…

Characterisation of Wines Produced from Fungus Resistant Grape Varieties Open

Dorothea Leis, Wolfgang A. Renner, Erich Leitner · 2020

Emissions of compost bedded pack barn for cattle Open

A. Pöllinger, Barbara Pöllinger-Zierler, Christian Kapp, Nina Haar, Larissa Patricia Kolb , et al. · 2020

PARADISe - a ground-breaking tool to treat complex GC-MS datasets Open

Rasmus Bro, Barbara Siegmund, Erich Leitner · 2020

Characterisation of the Flavour of the Old Austrian Apple Variety ‘Ilzer Rose’ Open

Iris Tauber, Georg Innerhofer, Erich Leitner, Barbara Siegmund · 2020

Engineering of <i>Saccharomyces cerevisiae</i> for the production of (+)‐ambrein Open

Sandra Moser, Erich Leitner, Thomas J. Plocek, Koenraad Vanhessche, Harald Pichler · 2019

The triterpenoid (+)‐ambrein is the major component of ambergris, a coprolite of the sperm whale that can only be rarely found on shores. Upon oxidative degradation of (+)‐ambrein, several fragrance molecules are formed, amongst them (−)‐a…

Exploring Castellaniella defragrans Linalool (De)hydratase-Isomerase for Enzymatic Hydration of Alkenes Open

Matthias Engleder, Monika Müller, Iwona Kaluzna, Daniel Mink, Martin Schürmann , et al. · 2019

Acyclic monoterpenes constitute a large and highly abundant class of secondary plant metabolites and are, therefore, attractive low-cost raw materials for the chemical industry. To date, numerous biocatalysts for their transformation are k…

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