Article
Environmental Sciences
Denis Leppla, Nora Zannoni, Leslie Kremper, Jonathan Williams, Christopher Poehlker, Marta Sa, Maria Christina Solci, Thorsten Hoffmann
Summary: Chiral chemodiversity is important in biochemical processes, but most organic aerosol studies do not consider enantiomeric compounds. This study measured chiral secondary organic aerosols (SOA) at different altitudes in the Amazon using liquid chromatography-mass spectrometry (LC-MS). The results showed that the chiral ratio of pinic acid varied with altitude, indicating that the chiral information of the precursor molecule is transferred to the product. The differences in atmospheric lifetimes between reactant and product explain the weaker height gradient of enantiomers in the particle phase. This suggests that analyzing chiral aerosol precursors can provide information on the contributions of different sources to biogenic secondary aerosols.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Applied
Svenja Krause, Eugenia Ayebea Asamoah, Delphine Huc-Mathis, Gabrielle Moulin, Ralf Jakobi, Barbara Rega, Catherine Bonazzi
Summary: This study evaluated the applicability of purified pea ingredients in sponge cake development. The combination of purified pea starch and pea protein resulted in fewer oxidation markers, but were highly prone to participate in the Maillard reaction and caramelization during baking, leading to a complex mixture of compounds.
Article
Chemistry, Physical
Hongyun Wang, Haijun Cheng, Fang Lai, Deyuan Xiong
Summary: CuAPO-5(0.06) molecular sieve was successfully synthesized hydrothermally and used as a catalyst for the oxidation of alpha-pinene. The catalyst exhibited high conversion and selectivity. The introduction of copper increased the acidity of the catalyst, which had a large specific surface area.
Article
Biochemistry & Molecular Biology
Zhong-Lei Meng, Ru-Si Wen, Xiao-Rui Huang, Rong-Xiu Qin, Yi-Ming Hu, Yong-Hong Zhou
Summary: This study utilizes five alpha-hydroxy acids as catalysts for synthesizing terpineol from alpha-pinene. The use of ternary composite catalysts showed significant improvement in the catalytic performance. The optimal reaction conditions were identified, and the conversion of alpha-pinene, content and selectivity of alpha-terpineol were measured. Furthermore, the study also examined the catalytic performance of monolayer graphene oxide and its composite catalyst with citric acid.
Article
Chemistry, Physical
Agnieszka Wroblewska, Jadwiga Grzeszczak, Piotr Miadlicki, Karolina Kielbasa, Marcin Kujbida, Adrianna Kaminska, Beata Michalkiewicz
Summary: The study investigated the oxidation of alpha-pinene over TS-1 catalysts with different Ti content, revealing that the catalyst with 5.42 wt% Ti yielded the best results in terms of conversion rate and selectivities for main products. Various products of practical importance in industries such as food, cosmetics, perfumery, and medicine were formed under optimized conditions. Kinetic studies were also conducted for the process.
Article
Multidisciplinary Sciences
Cheng-Yu Zheng, Jian-Min Yue
Summary: This study presents a mild and efficient method for the direct C(sp3)-H hydroxylation of enones via visible-light-induced hydrogen-atom transfer, without the need for a metal and peroxide. The method enables the gamma-hydroxylation of primary, secondary, and tertiary C-H bonds of enones and has potential applications for the late-stage functionalization of enone-containing compounds, including clinical drugs and natural products, as well as large-scale production in the industry.
NATURE COMMUNICATIONS
(2023)
Article
Energy & Fuels
Zahraa Dbouk, Nesrine Belhadj, Maxence Lailliau, Roland Benoit, Philippe Dagaut
Summary: In this study, limonene and alpha-pinene mixtures were oxidized under atmospheric pressure, at cool flame regime and fuel-lean conditions. Analysis of the reacting mixtures revealed numerous oxidation products including highly oxygenated organic compounds and aromatic, polyunsaturated products.
Article
Chemistry, Physical
Giulia R. Gheorghita, Cristina Sora, Sabina Ion, Vasile I. Parvulescu, Madalina Tudorache
Summary: A biocatalytic cascade system using a cocktail of oxidoreductase enzymes was designed for the allylic oxidation of (+)-alpha-pinene into value-added products. The system showed high efficiency under optimal conditions, achieving significant conversion of (+)-alpha-pinene and yield in verbenol. The developed biocatalytic cascade system offers promising perspectives for (+)-alpha-pinene valorization.
Review
Food Science & Technology
Asad Nawaz, Sana Irshad, Iftikhar Ali Khan, Ibrahim Khalifa, Noman Walayat, Rana Muhammad Aadil, Manoj Kumar, Mingfu Wang, Feng Chen, Ka-Wing Cheng, Jose Manuel Lorenzo
Summary: This review provides an insight into the effects of protein oxidation on the physicochemical properties of meat and meat-based products during processing. Protein oxidation can lead to adverse consequences such as protein aggregation, carbonylation, alteration of surface hydrophobicity, and perturbation in protein structures. It is a major concern in the food industry as it affects the quality and nutritional value of the final products.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Environmental Sciences
Penghao Li, Fengxiang Zhu, Wang Weiping, Ying Zhou, Yanlai Yao, Leidong Hong, Weijing Zhu, Chunlai Hong, Xiaoxia Liu, Hongjin Chen, Yijun Yu
Summary: A total of 136 perishable waste primary products were sampled in nine cities in Zhejiang Province, China, to investigate their nutrient content and potential impact. The products were found to have high nutrient content (5.00% on average), but excessively high conductivity, total soluble salt content, and grease content. These excessive salt and grease levels may harm soil and crops, becoming limiting factors for perishable waste fertilizer utilization. Most samples met current commercial organic fertilizer standards for heavy metal content, except for lead and chromium levels in some samples. Toxic and harmful substances such as toluene, ethylbenzene, and m & p-xylene were commonly detected in the samples, posing risks to the safe use of perishable waste as fertilizers.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Food Science & Technology
Marcio Vargas-Ramella, Jose M. Lorenzo, Ruben Dominguez, Mirian Pateiro, Paulo E. S. Munekata, Paulo C. B. Campagnol, Daniel Franco
Summary: The study showed that the replacement of NaCl by salt mixtures in dry-cured deer cecina affects physicochemical quality, volatile compounds, and sensory attributes, while the total amounts of free fatty acids and free amino acids were not affected.
Article
Chemistry, Applied
Kanchan Suri, Balwinder Singh, Amritpal Kaur
Summary: The study showed that high power microwave roasting (720 W) for 10 minutes resulted in black seed oil with higher total phenolic content, radical scavenging activity, and oxidative stability index, while the highest oil yield and low acid value were observed for black seed oil roasted at 540 W for 10 minutes. Microwave roasting had a slight influence on the fatty acid composition.
Article
Chemistry, Multidisciplinary
Piotr Skalecki, Agnieszka Kaliniak-Dziura, Piotr Domaradzki, Mariusz Florek, Ewa Poleszak, Malgorzata Dmoch
Summary: The study aimed to assess the impact of adding fish raw materials on the quality and nutritional value of pork pates. Results showed that the addition of fish raw materials decreased fat content and caloric value, while increasing protein and healthful fat nutritional index. Fish constituents also modified the color, texture, and sensory properties of pates, while improving the fatty acid profile.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Christopher P. West, Daniela Mesa Sanchez, Ana C. Morales, Yun-Jung Hsu, Jackson Ryan, Andrew Darmody, Lyudmila V. Slipchenko, Julia Laskin, Alexander Laskin
Summary: This study utilizes ion mobility spectrometry with mass spectrometry detection to separate and characterize biogenic secondary organic aerosols (SOAs), revealing differences in chemical composition and molecular structure between different emission sources and aging processes in the atmosphere. The collision cross sections and structural features of monomeric and dimeric SOA components were determined through gas-phase separation and structural calculations. The study also highlights the impact of ionization mode on the collision cross section values, with Na+-coordinated oligomeric ions showing more compact structures and deprotonated molecules exhibiting elongated structures.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Food Science & Technology
Jonatas Lopes Dias, Marcelo Lanza, Sandra R. S. Ferreira
Summary: Cocrystallization is considered a powerful tool to modulate the properties of food-related polyphenols, improving their solubility, bioavailability, and stability. Different methods can be used to produce polyphenol cocrystals, allowing for the modulation of their properties and bioactivity.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Paulina Wach, Grzegorz Spolnik, Jason D. Surratt, Kacper Blaziak, Krzysztof J. Rudzinski, Ying-Hsuan Lin, Willy Maenhaut, Witold Danikiewicz, Magda Claeys, Rafal Szmigielski
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Agata Kolodziejczyk, Patryk Pyrcz, Kacper Blaziak, Aneta Pobudkowska, Kumar Sarang, Rafal Szmigielski
Correction
Chemistry, Multidisciplinary
Agata Kolodziejczyk, Patryk Pyrcz, Kacper Blaziak, Aneta Pobudkowska, Kumar Sarang, Rafal Szmigielski
Article
Environmental Sciences
Yoshiteru Iinuma, Sathiyamurthi Ramasamy, Kei Sato, Agata Kolodziejczyk, Rafal Szmigielski
Summary: This study characterized the structures of alpha-pinene originating dimeric esters in SOA using UPLC/ESI(-)IMS-TOFMS, revealing consistency with previously reported subunits but highlighting the need for further research into the structure of the m/z 357 ion.
Article
Chemistry, Medicinal
Faria Khan, Karina Kwapiszewska, Yue Zhang, Yuzhi Chen, Andrew T. Lambe, Agata Kolodziejczyk, Nasir Jalal, Krzysztof Rudzinski, Alicia Martinez-Romero, Rebecca C. Fry, Jason D. Surratt, Rafal Szmigielski
Summary: Experimental study on the impact of α-pinene SOA demonstrated significant inhibitory effects on cellular proliferation and increased oxidative stress in BEAS-2B lung cells, while had little impact on A549 cells. Further research is needed to explore the long-term inhalation exposure effects of α-pinene SOA components.
CHEMICAL RESEARCH IN TOXICOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Aneta Jezierska, Kacper Blaziak, Sebastian Klahm, Arne Luechow, Jaroslaw J. Panek
Summary: The study investigated the non-covalent interactions responsible for molecular features and self-assembly in Naphthazarin C polymorph using diverse theoretical approaches. It examined proton transfer phenomena, energy barriers, and temperature influences on the dynamics of bridged protons. The CPMD results indicated a cooperation of intramolecular hydrogen bonds in Naphthazarin molecule.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Engineering, Environmental
Kumar Sarang, Tobias Otto, Krzysztof Rudzinski, Thomas Schaefer, Irena Grgic, Klara Nestorowicz, Hartmut Herrmann, Rafal Szmigielski
Summary: Green Leaf Volatiles (GLVs) released by stressed green plants can react in the atmosphere to form secondary organic aerosol (SOA). The aqueous-phase reactions of GLVs with SO4 center dot-, (OH)-O-center dot, and NO3 center dot show an increasing rate with temperature, while the atmospheric lifetimes of GLVs decrease with higher liquid water content and radical concentrations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Aneta Jezierska, Jaroslaw J. Panek, Kacper Blaziak, Kamil Raczynski, Aleksander Koll
Summary: In this study, intra- and intermolecular interactions as well as proton transfer phenomena were investigated in selected N-oxide derivatives. Density Functional Theory and Time-Dependent extension were employed to simulate the structures and reactions of the compounds. The study revealed different interaction characteristics and proton transfer behaviors between the two compounds. Additionally, the effects of polar environment and solvation on interaction energies and excited states were analyzed.
Article
Chemistry, Multidisciplinary
Damian Antoniak, Bartosz Paluba, Tymoteusz Basak, Kacper Blaziak, Michal Barbasiewicz
Summary: The alkylation of nitroarenes via Vicarious Nucleophilic Substitution (VNS) was experimentally tested and modeled with DFT calculations. Mechanistic studies showed intrinsic differences between the reactions of the carbanion precursor PhSO2CH2Cl and alkyl phenyl sulfones with benzenesulfinate as a leaving group. Steric hindrance developed at the beta-elimination step for the latter precursors, raising the energy barrier and resulting in the formation of byproducts.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Environmental Sciences
Evangelia Kostenidou, Spiro Jorga, John K. Kodros, Kalliopi Florou, Agata Kolodziejczyk, Rafal Szmigielski, Spyros N. Pandis
Summary: Norpinic acid is a major oxidation product of alpha-pinene and beta-pinene, two important biogenic volatile organic compounds in the atmosphere. This study characterized the physicochemical properties of norpinic acid aerosol and investigated its reaction with OH radicals. The results showed that the aging products of norpinic acid particles are similar to the parent molecule when measured by AMS.
Article
Entomology
Krzysztof. J. J. Rudzinski, Dorota Staszek, Monika Asztemborska, Lidia Sukovata, Jerzy Raczko, Marek Cieslak, Andrzej Kolk, Rafal Szmigielski
Summary: The larvae of the pine-tree lappet moth are harmful defoliators of pine trees in Europe and Asia. The discovery of unknown components of their sex pheromone opens up possibilities for improving trapping methods and monitoring systems. The study identified new components and tested their attractiveness to male moths. The findings provide a basis for developing more effective lures.
Article
Environmental Sciences
Kumar Sarang, Tobias Otto, Sahir Gagan, Krzysztof Rudzinski, Thomas Schaefer, Martin Brueggemann, Irena Grgic, Adam Kubas, Hartmut Herrmann, Rafal Szmigielski
Summary: Plants under stress emit Green Leaf Volatiles (GLVs), which may clarify uncertainties in secondary organic aerosol (SOA) budget. In this study, we investigated the aqueous photo-oxidation products of three abundant GLVs induced by center dot OH radicals. Advanced mass spectrometry techniques were used to analyze the reaction samples. The results suggest the potential formation of aqueous SOA and provide insight into the formation mechanism and structures of the identified oxidation products.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Agata Kolodziejczyk, Mikolaj Blaziak, Kinga Podgorniak, Aneta Jezierska, Kacper Blaziak
Summary: A general mechanism of the Malaprade oxidative carbon-carbon bond cleavage reaction has been proposed based on density functional theory calculations. The study analyzed four alternative molecular transformations and compared the theoretical results with experimental kinetics and spectroscopic studies. The computed minimum energy pathway provided a detailed understanding of the reaction rate and atomic connections in the transformation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Environmental Sciences
Anke Mutzel, Yanli Zhang, Olaf Boege, Maria Rodigast, Agata Kolodziejczyk, Xinming Wang, Hartmut Herrmann
Summary: The study investigated the oxidation reactions of alpha-pinene, limonene, and m-cresol under different relative humidity conditions and found that the SOA formation potential varied significantly depending on the reaction and humidity levels. Limonene showed a higher SOA yield with NO3 radicals under dry conditions, while m-cresol exhibited unexpectedly high SOA yields with OH radicals, particularly under elevated RH. Alpha-pinene, on the other hand, yielded consistent levels of SOA regardless of RH. Additionally, the chemical composition and markers of SOA were found to differ between the different compounds and reaction conditions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
