Article
Biochemistry & Molecular Biology
Hongzhe Jiang, Yilei Hu, Xuesong Jiang, Hongping Zhou
Summary: The maturity stages of Camellia oleifera fruit can be assessed accurately using a hyperspectral imaging system. Principal component analysis and classification models can be used to accurately discriminate different maturity stages. Selecting the correct wavelengths can improve the prediction accuracy.
Article
Engineering, Multidisciplinary
Lukasz Pieszczek, Michal Daszykowski
Summary: This study explores the potential of near-infrared hyperspectral imaging for accurately assessing the size of polymer particles compared to traditional single point measurement methods. Hyperspectral imaging not only provides information about the spatial distribution of sample components, but also reveals changes in physical properties.
Article
Plant Sciences
Julio Nogales-Bueno, Berta Baca-Bocanegra, Jose Miguel Hernandez-Hierro, Raquel Garcia, Joao Mota Barroso, Francisco Jose Heredia, Ana Elisa Rato
Summary: Persian walnut is rich in bioactive compounds and consuming it can protect against cardiovascular, carcinogenic, and neurological disorders. This study used near infrared hyperspectral imaging to screen fatty acids in walnuts, showing that imaging technology could be a reliable tool for this purpose.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Green & Sustainable Science & Technology
Wei Peng, Giovanni Beggio, Alberto Pivato, Hua Zhang, Fan Lue, Pinjing He
Summary: Near-infrared spectroscopy and hyperspectral imaging techniques combined with chemometric method have been applied to address challenges in anaerobic digestion plants, and can be used for monitoring and optimizing process parameters and evaluating quality.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Food Science & Technology
Yujie Wang, Ying Liu, Yuyu Chen, Qingqing Cui, Luqing Li, Jingming Ning, Zhengzhu Zhang
Summary: Polyphenols are key components in tea for taste and health benefits. This study used near-infrared hyperspectral imaging to assess TP content in six types of tea, achieving high accuracy in discriminating tea types using a PCA-KNN model. Selected wavelengths through PLSR model helped predict TP content effectively, and distribution maps visualized spatial differences in TP among different tea samples. This study provided a rapid and nondestructive method for tea type identification and TP content visualization.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Spectroscopy
Hongzhe Jiang, Weidong Yuan, Yu Ru, Qing Chen, Jinpeng Wang, Hongping Zhou
Summary: This study aims to identify the authenticity of fresh and cooked mutton kebabs when substituted by different meats using hyperspectral imaging. The results showed that hyperspectral imaging has great potential in determining the authenticity of mutton kebabs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Kiah Edwards, Louwrens C. Hoffman, Marena Manley, Paul J. Williams
Summary: South African legislation regulates the classification and labeling of raw beef patties to combat meat fraud and protect consumers. A study investigated the use of near-infrared hyperspectral imaging (NIR-HSI) as an alternative authentication technique. The results showed that NIR-HSI could accurately distinguish between different patty categories, offering a reliable solution for rapid identification and authentication of processed beef patties.
Article
Environmental Sciences
Jinnuo Zhang, Dongdong Ma, Xing Wei, Jian Jin
Summary: Remote sensing coupled with hyperspectral technology is increasingly used to study plant growth, health, and productivity. However, diurnal variations in spectral characteristics introduce more data variance, compromising the performance of trait estimation models. In this study, a fixed gantry platform was used to capture VNIR hyperspectral images of corn canopies at consecutive time intervals. Diurnal calibration models were established at every wavelength, and using diurnal calibration in canopy spectra processing effectively reduced spectral variance brought about by varying imaging time.
Article
Environmental Sciences
Felix Nyarko, Filip M. G. Tack, Abdul M. Mouazen
Summary: This study successfully estimated the concentrations of several metal elements in soils using visible and infrared spectroscopy combined with different calibration methods. Full-range spectroscopy showed higher accuracy and performed best in certain elements' predictions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Food Science & Technology
Sai Xu, Huazhong Lu, Changxiang Fan, Guangjun Qiu, Christopher Ference, Xin Liang, Jian Peng
Summary: This study proposes a visible and near-infrared (VIS/NIR) hyperspectral imaging method to quickly and intelligently detect parasites in sashimi. The research results show that the VIS/NIR spectrums for fish meat and parasite images were different at certain wavelengths. The synthesis between a probabilistic neural network (PNN) and a combination of detection models allows for optimal detection of parasites in sashimi.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Soo-In Sohn, Subramani Pandian, John-Lewis Zinia Zaukuu, Young-Ju Oh, Yong-Ho Lee, Eun-Kyoung Shin, Senthil Kumar Thamilarasan, Hyeon-Jung Kang, Tae-Hun Ryu, Woo-Suk Cho
Summary: This study aims to evaluate the use of visible-near infrared (Vis-NIR) spectroscopy combined with multiple chemometric methods for the discrimination of eight Brassica napus varieties in Korea. Spectral data from the leaves of the varieties were measured in the Vis-NIR range and subjected to different preprocessing and chemometric analyses. The results suggest that handheld Vis-NIR spectroscopy combined with chemometric approaches can be an effective tool for discriminating B. napus varieties in the field.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Food Science & Technology
Wenxiang Zhang, Liao Pan, Lixin Lu
Summary: A practical prediction method for evaluating the Total volatile basic nitrogen (TVB-N) content of beef covered by packaging films was proposed using visible-near infrared hyperspectral imaging (HSI). The study demonstrated that the influence of films on the prediction accuracy of TVB-N content can be eliminated by spectral preprocessing and modeling methods. It proved the feasibility of using visible-near infrared hyperspectral technology to predict TVB-N content in packaged beef.
Article
Chemistry, Applied
Jizhong Wu, Muhammad Zareef, Quansheng Chen, Qin Ouyang
Summary: Consumer preference for matcha is influenced by its physicochemical properties. The combination of visible-near infrared (Vis-NIR) spectroscopy and multivariate analysis allows for rapid and non-invasive evaluation of matcha particle size and the ratio of tea polyphenols to free amino acids (P/F ratio). The study compared different variable selection algorithms and proposed the hybridization of interval combination population analysis (ICPA) and competitive adaptive reweighted sampling (CARS) for selecting characteristic wavelengths to build partial least squares (PLS) models. The results showed that the ICPA-CARS-PLS models performed well in evaluating matcha particle size (Rp = 0.9376) and P/F ratio (Rp = 0.9283), demonstrating the significance of rapid, effective, and nondestructive online monitoring using Vis-NIR reflectance spectroscopy and chemometric models in matcha production.
Article
Food Science & Technology
J. P. Cruz-Tirado, Jose Manuel Amigo, Douglas Fernandes Barbin
Summary: This study developed a fast screening method using near infrared hyperspectral imaging and chemometrics to estimate the protein content in black fly soldier larvae. Compared to traditional chemical analysis methods, this approach is time-saving and efficient.
Article
Food Science & Technology
Mingyue Zhang, Jianxin Xue, Yaodi Li, Junyi Yin, Yang Liu, Kai Wang, Zezhen Li
Summary: In this study, prediction models were developed using Vis/NIR spectroscopy with PLS-DA and LS-SVM for detecting pesticide residues on cauliflowers. The models achieved high accuracy in detecting different concentration levels of avermectin, dichlorvos, and chlorothalonil. The results demonstrated the effectiveness of Vis/NIR spectroscopy combined with chemometrics in identifying pesticide residues on cauliflower surfaces.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Geochemistry & Geophysics
Pierre Vequaud, Alexandre Thibault, Sylvie Derenne, Christelle Anquetil, Sylvie Collin, Sergio Contreras, Andrew T. Nottingham, Pierre Sabatier, Josef P. Werne, Arnaud Huguet
Summary: The study developed a new global terrestrial brGDGT temperature calibration using a machine learning algorithm. This improved model is more accurate and robust than previous global soil calibrations, and takes into account non-linear relationships to better represent environmental complexity.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geosciences, Multidisciplinary
B. Wilhelm, W. Rapuc, B. Amann, F. S. Anselmetti, F. Arnaud, J. Blanchet, A. Brauer, M. Czymzik, C. Giguet-Covex, A. Gilli, L. Glur, M. Grosjean, R. Irmler, M. Nicolle, P. Sabatier, T. Swierczynski, S. B. Wirth
Summary: Flooding is a pervasive natural hazard that can cause significant human and economic losses, and climate change is expected to worsen the risks worldwide. This study focuses on the European Alps, a densely populated mountainous region that is particularly vulnerable to floods due to its topography and atmospheric conditions. By examining palaeoflood records, the researchers find that a warming of 0.5-1.2 degrees C, whether naturally or anthropogenically induced, leads to a decrease in the frequency of large floods. However, extreme floods may increase in certain small alpine catchments impacted by intense rainfall. These findings highlight the importance of long-term palaeoflood records in understanding the complex relationship between climate and flooding, and improving risk assessment and management at a regional scale.
Article
Geography, Physical
Nina Caf, Pierre Sabatier, Andrej Smuc, Nives Ogrinc, Matej Dolenec, William Rapuc, Doris Potocnik, Ulrich von Grafenstein, Maja Andric
Summary: This study investigates the long-term vegetation changes and sedimentary processes in the catchment area of Lake Planina pri jezeru in Slovenia over the past 13,000 years. The results reveal the impacts of climate warming, human activities, and vegetation succession on the environment.
JOURNAL OF QUATERNARY SCIENCE
(2023)
Article
Geology
Mathilde Banjan, Christian Crouzet, Pierre Sabatier, Herve Jomard, Manon Bajard, Francois Demory, Anne-Lise Develle, Jean-Philippe Jenny, Bernard Fanget, Emmanuel Malet, Nathaniel Findling, Philippe Alain, Julien Didier, Vincent Bichet, Sylvain Clapot, Erwan Messager
Summary: In the French northwest Alps, the presence of mass-transport deposits in several lakes suggests that they may have been triggered by earthquakes and rockfall events during the Younger Dryas - Early Holocene transition. This study also supports the hypothesis that rapid climate change and glacial retreat could contribute to increased seismic activity.
Correction
Chemistry, Multidisciplinary
Charles Mottes, Pierre Sabatier, Olivier Evrard, Nathalie Cottin, Fabien Arnaud, Irina Comte, Christine Piot, Magalie Lesueur-Jannoyer, Eric Lichtfouse, Jerome Poulenard
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
Stephane Guedron, Christophe Delaere, Sherilyn. C. Fritz, Julie Tolu, Pierre Sabatier, Anne-Lise Devel, Carlos Heredia, Claire Verin, Eduardo Q. Alves, Paul A. Baker
Summary: A reevaluation of the middle-to-late Holocene water levels in Lake Titicaca reveals a prolonged low stand during the middle Holocene, followed by a rapid rise starting around 1800 BCE and reaching its highest levels after 1600 CE. These lake-level increases coincide with major sociopolitical changes reported by archaeologists, particularly the emergence of the Tiwanaku culture after a significant rise in water levels at the end of the Formative Period in 500 CE.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Geochemistry & Geophysics
Floriane Guillevic, Magali Rossi, Anne-Lise Develle, Lorenzo Spadini, Jean M. F. Martins, Fabien Arnaud, Jerome Poulenard
Summary: Mining and smelting activities have generated significant amounts of potentially toxic trace elements in mine and metallurgical wastes. A study was conducted on an abandoned mining and smelting site in France to characterize the legacy and dispersion of lead (Pb) contamination. The most severe Pb contamination was found near the slag heaps and along transportation paths, with a limited contamination gradient downhill. The presence of different Pb-bearing phases was observed, with the most stable and widespread forms being Pb-bearing Mn (hydr-)oxides.
APPLIED GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Victor Frossard, Pierre Sabatier, Rosalie Bruel, Chloe Vagnon, Nathalie Tissot, Nadine Curt-Grand-Gaudin, Marie-Elodie Perga
Summary: This study aimed to distinguish the influences of tourism and climate change on a mountain lake by combining paleolimnological and present ecological data. The results showed that while climate control has historically dominated lake biological production, tourism development and environmental degradation have recently increased their impact. This highlights the importance of local management in preserving the ecological integrity of mountain lakes.
Article
Geography, Physical
Eleonora Cagliero, Laure Paradis, Niccolo Marchi, Zsuzsa Lisztes-Szabo, Mihaly Braun, Katalin Hubay, Pierre Sabatier, Milic Curovic, Velibor Spalevic, Renzo Motta, Emanuele Lingua, Walter Finsinger
Summary: We present the first high-resolution Holocene pollen, plant-macrofossil, and charcoal records from the upper-montane zone in the central Dinaric Alps. Our study explores long-term ecosystem responses to variations in climate, fire disturbances and land use, as well as the legacy effects of past environmental changes. We found that different tree species in the region show varying sensitivities to summer temperatures, biomass burning, and human impact, indicating the complex interactions between climate, fire, and land use in shaping forest composition and dynamics.
Article
Environmental Sciences
Charline Giguet-Covex, Manon Bajard, Wentao Chen, Kevin James Walsh, Pierre-Jerome Rey, Erwan Messager, David Etienne, Pierre Sabatier, Francesco Gentile Ficetola, Ludovic Gielly, Claire Blanchet, Christophe Guffond, Patricia Chiquet, Fabien Arnaud, Jerome Poulenard
Summary: By integrating archaeology, history, and ancient DNA records, we reconstructed the nature and intensity of agropastoral activities in the Northwestern French Alps. Our study revealed the significant influence of human activities on plant community composition and erosion, particularly in areas above 2000 meters.
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Environmental Sciences
Vincent Herve, Pierre Sabatier, Josie Lambourdiere, Jerome Poulenard, Pascal Jean Lopez
Summary: Land use change and anthropogenic forcing can alter sediment transport, biodiversity, and ecosystem functions in coastal ecosystems. This study evaluated the shifts in eukaryotic communities in a marine core sample, and found that agricultural activities, such as pesticide use, have long-term and species-specific implications for microeukaryotic coastal communities on a tropical island.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Pierre Lefebvre, Arnaud Mangeret, Alkiviadis Gourgiotis, Pascale Louvat, Pierre Le Pape, Pierre Sabatier, Olivier Diez, Charlotte Cazala, Jerome Gaillardet, Guillaume Morin
Summary: Understanding the U cycle at the watershed scale is crucial for managing contaminated areas and conducting research on ore formation processes and paleoenvironments. Through chemical, isotopic, and speciation analyses, we investigated the U cycle in the U-rich Lake Negre watershed in France. Our findings reveal that U(VI) originates from U-rich rock fractures and is transported in dissolved forms, with wetlands and meadow soils acting as intermediate sinks. Additionally, U is supplied to the lake through physical erosion of soil, and sedimentation in the lake reduces U(VI) to U(IV), resulting in high sedimentary U concentrations.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Geology
R. Gastineau, P. Sabatier, S. C. Fabbri, F. S. Anselmetti, P. Roeser, N. Findling, M. Sahin, S. Gunduz, F. Arnaud, S. O. Franz, N. D. Unsal, J. de Sigoyer
Summary: Using lake-sediment cores, this study identified and characterized five different types of event deposits in Lake Iznik, revealing the lateral variations in earthquake-induced deposits. The occurrence of these event deposits was found to depend on the distance from the sediment destabilizations to the coring site. The study also showed that ground-motion parameters might influence the type of event deposit.
DEPOSITIONAL RECORD
(2023)
Article
Environmental Sciences
Floriane Guillevic, Fabien Arnaud, Magali Rossi, Jerome Poulenard, Pierre Sabatier, Anne-Lise Develle, Cecile Quantin, Gael Monvoisin
Summary: Metal-rich fumes released during ore smelting result in widespread anthropogenic contamination. Environmental archives such as lake sediments provide records of deposition on lake and terrestrial surfaces from ancient mining and smelting activities. However, little is known about the buffering effect of soils in remobilizing metals through runoff and erosion, leading to persistent contamination long after metallurgical activities have ceased. This study focuses on assessing long-term remobilization in a mountainous catchment area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
