Article
Geochemistry & Geophysics
Leonid Y. Aranovich, Alexey N. Pertsev, Andrey V. Girnis, Nikolay S. Bortnikov, Paula M. Antoshechkina
Summary: New data on the chemical composition of basalt glasses collected in the anomaly region of the Mid-Atlantic Ridge provide insight into the compositional variability and potential source materials. The study indicates that the glasses show a wide range of compositions and could originate from both depleted mantle and other source materials. The results suggest two alternative hypotheses, partial melting of continental crustal material and melt-rock interaction within off-axial gabbro structures, as potential mechanisms for the compositional diversity observed in the samples.
Article
Fisheries
Beatriz Rodriguez-Salvador, Domingo Calvo Dopico
Summary: The purpose of this study was to examine consumer preferences for the origin and traceability of fish products. A survey was conducted in Spain with 215 individuals responsible for household food purchases. The results revealed that consumers mainly associate the traceability of fish products with their origin, and most of them seek differentiated products based on origin. However, a small proportion of consumers hold a preference for traceable fish products. This research provides valuable insights for producers and marketers in the Spanish fish market.
FISHERIES RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Kei Ota, Rei Kinjo
Summary: The development of zero-valent species of group 13-15 elements has been reinterpreted with the use of Lewis bases to stabilize such species. This has led to the isolation of E-n(0) derivatives with a variety of bonding and structural motifs due to the diversity of Lewis bases available. The exploration of allotrope chemistry relevant to materials science is proposed as a potential future direction for zero-valent main-group chemistry at the end of the article.
Article
Plant Sciences
David Soba, Angie L. Gamez, Naroa Uriz, Lorena Ruiz de Larrinaga, Carmen Gonzalez-Murua, Jose Maria Becerril, Raquel Esteban, Dolors Serret, Jose Luis Araus, Iker Aranjuelo
Summary: The study evaluated Tilia cordata leaves as bioindicators of heavy metal pollution and found that leaves from urban areas like Bilbao had higher heavy metal concentrations related to traffic emissions. The analysis of leaf carbon and nitrogen isotopes (delta C-13 and delta N-15) showed potential as indicators of heavy metal pollution levels and could distinguish pollution sources in different locations. Further research is needed to calibrate this monitoring tool through extensive vegetation screening.
URBAN FORESTRY & URBAN GREENING
(2021)
Review
Chemistry, Applied
Qian Wang, Haijin Liu, Yang Bai, Yan Zhao, Jun Guo, Ailiang Chen, Shuming Yang, Shanshan Zhao, Liqin Tan
Summary: This article discusses the principles, progress, comparison, and analysis of five food traceability technologies, and explores their application prospects, advantages, and disadvantages, aiming to promote the use of traceability technology in mutton safety and improve the food traceability system.
Article
Microbiology
Jun Young Park, Jae-Ho Jung, Jung Hyun Kwak, Heum Gi Park, Chang-Keun Kang, Hyun Je Park
Summary: Understanding the magnitude and causes of isotopic fractionation between organisms and their dietary resources is crucial for stable isotope ecology. The study found that the isotopic fractionation values for marine ciliates are similar to those of common marine organisms, suggesting little food-dependent variation in their trophic transfer of carbon, nitrogen, and energy flow through the microbial pathway in marine ecosystems.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Mining & Mineral Processing
Noshin Masood, Tehseen Zafar, Karen A. Hudson-Edwards, Hafiz U. Rehman, Abida Farooqi
Summary: The study of Paleocene coals in the Salt Range of Punjab Province, Pakistan revealed relatively high trace element contents and associated them with organic and inorganic phases. Isotopic analysis indicated the presence of modern terrestrial vegetation in the ancient peat deposits of the coal seams.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Daniel H. Lysak, William W. Wolff, Ronald Soong, Wolfgang Bermel, Eriks Kupce, Amy Jenne, Rajshree Ghosh Biswas, Daniel Lane, Genevieve Gasmi-Seabrook, Andre Simpson
Summary: Many important biological components contain nitrogen. However, N-15 nuclei are rarely used in NMR-based metabolite assignment due to their low abundance and the lack of comprehensive databases. In this study, a broadband N-15-edited H-1-C-13 HSQC NMR experiment was developed to identify nitrogen-containing metabolites based on their C-13, H-1, and N-15 chemical shifts.
ANALYTICAL CHEMISTRY
(2023)
Article
Law
Jagmahender Singh Sehrawat, Niraj Rai
Summary: Stable isotope analysis of bones and teeth can estimate the geographic locations and dietary status of individuals in forensic or bio-archaeological contexts. Carbon and nitrogen isotope signatures provide insights into geographic affinity and dietary habits.
MEDICINE SCIENCE AND THE LAW
(2023)
Article
Environmental Sciences
Keryn Roberts, Michael Grace, Perran Cook, Dirk Erler, Wei Wen Wong
Summary: The effectiveness of nitrogen removal in wetlands depends on biological processes. Isotopic fractionation factors were measured to evaluate nitrogen transformation processes in two urban water treatment wetlands. Differences in sampling conditions, such as rainfall patterns and light availability, affected the removal capability of the wetlands. Nitrate removal was influenced by overall nutrient inputs, residence time, and water temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Applied
Cidan Zhaxi, Shanshan Zhao, Tangwei Zhang, Hao Dong, Haijin Liu, Yan Zhao
Summary: The study successfully distinguished Tibetan chickens from those in plain areas using stable isotopes and chemometric methods, achieving a cross-validation rate of 97.6%. Additionally, the research revealed a strong correlation between the isotopic values of chicken samples and environmental parameters, providing important insights for tracing the origins of chickens.
Article
Geochemistry & Geophysics
Sifan Gu, Zhengyu Liu, Delia W. Oppo, Jean Lynch-Stieglitz, Alexandra Jahn, Jiaxu Zhang, Keith Lindsay, Lixin Wu
Summary: The study examines the factors contributing to the deglacial Atlantic mid-depth delta C-13 change, finding that the increased remineralization due to the weakened AMOC plays a dominant role in the decrease of delta C-13. The surface end-members should be used in diagnosing mechanisms of delta C-13 changes, as their remineralization is more critical than that along the transport pathway to the deep ocean.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Fisheries
Chun- Chiang, Chian-Yu Lu, Chia-Hui Wang
Summary: In this study, the feasibility of using delta C-13 and delta N-15 values in scales as a non-lethal alternative to muscle tissues for discriminating between hatchery and wild origins of mangrove snapper was explored. The results showed that the isotopic composition of scales could effectively distinguish individuals with different origins. The study highlights the importance of regular sampling and scales analysis in fishery management and conservation practices.
AQUACULTURE INTERNATIONAL
(2023)
Article
Ecology
Emma A. Elliott Smith, Michael D. Fox, Marilyn L. Fogel, Seth D. Newsome
Summary: Carbon isotope fingerprinting using multivariate analysis has been applied in ecological studies to measure essential amino acids. This study evaluated the consistency in isotopic fingerprints among nearshore primary producers and identified the biochemical mechanisms driving these patterns. The results showed a high consistency in isotopic fingerprints of marine algae across space and time, with kelps and rhodophytes exhibiting distinct patterns. Taxonomy and site locality were found to be important determinants of individual amino acid delta C-13 values.
FUNCTIONAL ECOLOGY
(2022)
Article
Food Science & Technology
Renato Mamede, Irina A. Duarte, Isabel Cacador, Patrick Reis-Santos, Rita P. Vasconcelos, Carla Gameiro, Paula Canada, Pedro Re, Susanne E. Tanner, Vanessa F. Fonseca, Bernardo Duarte
Summary: This study compared the elemental fingerprints of gilthead seabream from different aquaculture methods, confirming their origin and assessing the concentrations of regulated elements. The findings demonstrate the reliability of elemental fingerprinting as a tool for tracing fish production methods and supporting seafood authentication.
Article
Fisheries
Min-Chul Lee, Deok-Seo Yoon, Jun Chul Park, Hyuntae Choi, Kyung-Hoon Shin, Atsushi Hagiwara, Jae-Seong Lee, Heum Gi Park
Summary: In this study, the impact of salinity and temperature on the marine tropical rotifer Brachionus rotundiformis was evaluated through life cycle parameters, fatty acid composition, and gene transcription levels. The findings suggest that changes in culture conditions influenced the reproduction and fatty acid concentrations of B. rotundiformis. Additionally, the transcriptional levels of Elovl and Fad genes were observed to be associated with compositional modulations of fatty acids, with Elovl9b potentially serving as a useful biomarker due to its temperature-dependent modulation.
Article
Oceanography
Jong-Ku Gal, Sun-Yong Ha, Jisoo Park, Kyung-Hoon Shin, Dongseon Kim, Nan-Young Kim, Sung-Ho Kang, Eun Jin Yang
Summary: Satellite observations and modeling data show an increase in net primary production in the Arctic Ocean due to retreating sea ice and warming, with under-ice blooms becoming more important. The role of sea-ice algae in these blooms is still unknown due to limited observations.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Dokyun Kim, Ha-Eun Cho, Eun-Ji Won, Hye-Jin Kim, Sunggyu Lee, Kwang-Guk An, Hyo-Bang Moon, Kyung-Hoon Shin
Summary: This study investigates the trophic magnification of synthetic musk compounds and siloxanes in aquatic environments. The results show high concentrations of these compounds in water, sediments, and biota at two sites in Geum River, Republic of Korea. The trophic magnification factor (TMF) analysis based on δN-15 amino acids indicates that most of these compounds have TMF values less than 1, suggesting low accumulation in the food chain. These findings have important implications for assessing and managing the environmental fate and trophic transfer of synthetic musk compounds and siloxanes in freshwater environments.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Jong-Ku Gal, Bo Kyung Kim, Hyoung Min Joo, Chorom Shim, Boyeon Lee, Il-Nam Kim, Jinyoung Jung, Kyung-Hoon Shin, Sun-Yong Ha
Summary: The study investigated the concentrations of n-alkanes and sterols in marine particulate matter in Kongsfjorden in early spring, revealing differences in environmental factors and phytoplankton cell density between the inner and outer fjord. Certain sterols showed correlations with chlorophyll a and POC concentrations, while short-chain alkanes were found to have significantly higher concentrations in the surface layer compared to the subsurface. The distribution of lipid biomarkers in the water column provides important information for understanding the origin and transport of organic matter in the Arctic fjord.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Medicinal
Bo Kyung Kim, Mi-Ok Park, Jun-Oh Min, Sung-Ho Kang, Kyung-Hoon Shin, Eun Jin Yang, Sun-Yong Ha
Summary: This study investigated the pigment and mycosporine-like amino acid (MAA) concentrations in phytoplankton and Northen krill in sub-Arctic Kongsfjorden. The results showed that these compounds played an important role in reducing UV photodamage and the krill accumulated different compositions of MAAs, mainly from their diet of cryptophytes, and translocated them among their body parts as an adaptation for photoprotection and physiological demands.
Article
Environmental Sciences
Hyuntae Choi, Jeomshik Hwang, Yeongjin Ryu, Guebuem Kim, Kyung-Hoon Shin
Summary: The nitrogen isotope ratios of amino acids in sinking particles reflect the seasonal dynamics of nitrogen sources and trophic structure in the water column. Sinking particles at 2250 m contain more resuspended sediment and undergo more microbial degradation compared to samples at 1000 m.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Environmental
Yo Han Yang, Sae Yun Kwon, Martin Tsz-Ki Tsui, Laura C. Motta, Spencer J. Washburn, Jaeseon Park, Min-Seob Kim, Kyung-Hoon Shin
Summary: By analyzing the nitrogen and mercury isotopes of eels and pike, we found that pike has consistent mercury concentration and ecological traits, making it an effective bioindicator for mercury. Eels, on the other hand, better capture site-specific mercury sources based on their mercury concentration and feeding behavior.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Food Science & Technology
Young-Shin Go, Eun-Ji Won, Seung-Hee Kim, Dong-Hun Lee, Jung-Ha Kang, Kyung-Hoon Shin
Summary: This study successfully differentiated the geographical origins of Manila clams using a combination of analytical methods, showcasing the advantages of employing multiple parameters simultaneously over traditional individual methods. This has implications for tracing the origins of different shellfish species or other food products.
Article
Marine & Freshwater Biology
Dahae Kim, Jung-Hyun Kim, Tommaso Tesi, Sujin Kang, Alessio Nogarotto, Kwangkyu Park, Dong-Hun Lee, Young Keun Jin, Kyung-Hoon Shin, Seung-Il Nam
Summary: In this study, surface sediments collected during expeditions in the Beaufort Sea were analyzed using various geochemical tools to assess the source and burial characteristics of organic carbon. The results showed complex interactions between water depth and the burial of organic carbon in the sediments, with a decrease in burial efficiency of terrestrial organic carbon with increasing water depth. The study also highlighted the role of hydrodynamic sorting and degradation in controlling the burial and reactivity of terrestrial organic carbon along the Mackenzie Trough transect.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Multidisciplinary Sciences
Dong-Hun Lee, Jung-Hyun Kim, Yung Mi Lee, Germain Bayon, Dahae Kim, Young Jin Joe, Xudong Wang, Kyung-Hoon Shin, Young Keun Jin
Summary: This study analyzed microbially derived authigenic carbonate samples recovered from active gas hydrate mounds on the southwestern slope of the Chukchi Borderlands. The results showed the presence of AOM-related lipid biomarkers and the dominance of anaerobic methanotrophic archaea (ANME)-1 in the studied carbonate samples. The study also reported significant enrichments of various trace elements in the carbonate-hosted lipid fractions. The findings suggest a potential relationship between the type of AOM microbial assemblage and trace element enrichments in carbonate-hosted lipid fractions.
SCIENTIFIC REPORTS
(2022)
Review
Chemistry, Medicinal
Evi Amelia Siahaan, Ratih Pangestuti, Kyung-Hoon Shin, Se-Kwon Kim
Summary: The market demand for marine-based cosmetics has experienced significant growth in the past decade. Marine resources offer a promising source for the development of novel cosmetic ingredients. However, sustainability is a concern that needs to be addressed in this development. The fisheries industry generates valuable leftover substances that can be extracted to create bioactive ingredients for cosmetics, such as collagen and chitin, which can provide anti-aging, anti-wrinkle, skin barrier, and hair care benefits. This review aims to explore the potential of these marine by-products as active ingredients for cosmetics, as well as discuss the prospect and challenges of sustainable blue cosmetics.
Article
Biochemistry & Molecular Biology
Hee Young Yun, Eun-Ji Won, Jisoo Choi, Yusang Cho, Da-Jung Lim, In-Seon Kim, Kyung-Hoon Shin
Summary: This study tested the stable isotope analysis of cyantraniliprole (CYN) and chlorantraniliprole (CHL) using compound purification in high-performance liquid chromatography (HPLC). The results showed that there were no significant isotope differences in the standard materials before and after clean-up processing, and the stable isotope differences between soil and plant were negligible. This confirms the potential of stable isotope analysis to quantify pesticide behavior in environments.
Article
Engineering, Environmental
Zeshan Arshad, Kyung-Hoon Shin, Hyokwan Bae, Jin Hur
Summary: Carbon to nitrogen (C/N) ratios in wastewater affect the production and composition of extracellular polymeric substances (EPS) in biological treatment processes. This study used stable isotopes to examine the EPS yield and compositional changes in aerobic-anoxic sequencing batch reactors (SBR) with different C/N ratios. The results showed that varying C/N ratios had a more pronounced effect on the production of nitrogenous EPS constituents than their carbon counterparts. This isotope labeling approach can be used to determine mass balances in activated sludge systems.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Marine
Jieun Kim, Hee-Young Yun, Eun-Ji Won, Hyuntae Choi, Seok-Hyeon Youn, Kyung-Hoon Shin
Summary: This study examines the trophic dynamics of zooplankton in the East Sea throughout the seasons. The results reveal that the dietary intake of zooplankton is significantly influenced by the transition of phytoplankton, which has important implications for the impact of climate change on planktonic ecosystems in the East Sea.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Environmental
Dokyun Kim, Eun-Ji Won, Ha-Eun Cho, Jonghyun Lee, Kyung-Hoon Shin
Summary: Although many attempts have been made to improve the accuracy of trophic magnification factor (TMF) and biomagnification factor (BMF) for assessing pollutant bioaccumulation, this study suggests an improved BMF (BMF') for mercury bioaccumulation in freshwater fish. The results show that the values of BMF' are generally higher than TMF, indicating that it is a more reliable index for risk assessment. This ecological approach provides novel insights into the behavior and trophic transfer of pollutants like mercury.
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.
