Article
Spectroscopy
Amir Malvandi, Hao Feng, Mohammed Kamruzzaman
Summary: This study presents the potential implementation of portable near-infrared spectroscopy (NIRS) combined with multivariate analysis for real-time assessment of moisture content in apple slices during direct-contact ultrasonic drying. The results show that this approach has high prediction accuracy and promising application prospects.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Katarzyna Wlodarska, Pawel Piasecki, Ana Lobo-Prieto, Katarzyna Pawlak-Lemanska, Tomasz Gorecki, Ewa Sikorska
Summary: This study evaluated and compared the potential of different optical spectroscopic techniques for quality assessment of apple juices. Calibration models based on NIR spectra of fruit showed high predictive ability for certain quality parameters, while models based on juice spectra performed best for others. The results provide insights for the development of fast quality control methods for juices.
MICROCHEMICAL JOURNAL
(2021)
Article
Automation & Control Systems
Lakshmi Alagappan, Jia En Chu, Joanna Huixin Chua, Jia Wen Ding, Ronghui Xiao, Zhe Yu, Kun Pan, Untzizu Elejalde, Kevin Junliang Lim, Limsoon Wong
Summary: In this study, a new classification and correction technique called CSCAC is proposed, which can simultaneously correct batch effects, perform multi-class classification, and detect new classes. The effectiveness of the method is demonstrated through classification experiments on different types of oils.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2023)
Article
Agriculture, Multidisciplinary
Dimitrios S. Kasampalis, Pavlos Tsouvaltzis, Konstantinos Ntouros, Athanasios Gertsis, Ioannis Gitas, Dimitrios Moshou, Anastasios S. Siomos
Summary: The nutritional composition of bell pepper fruits is mainly affected by the ripening stage at harvest, with non-destructive techniques reliably predicting internal quality. Algorithms such as genetic algorithm identified significant regions and wavelengths for assessing nutritional components in peppers.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Shihao Wu, Heng Liang, Yan Li, Wanfang Zou, Zhijian Liao, Wei Wang, Xinyu Ye
Summary: In this paper, a novel Y2Mg2Ga2-xSi2O12:xCr(3+) (YMGS:xCr(3+), x = 0.005-0.08) phosphor was developed, which exhibited broadband emission from 650 nm to 1000 nm under 440 nm excitation. The phosphor showed a peak wavelength at 790 nm and a wide full width at half-maximum (FWHM) of up to 180 nm, making it suitable for NIR spectroscopic technology. The NIR pc-LED device, combining the YMGS:0.04Cr(3+) phosphor with a commercial blue chip, achieved a near-infrared output power of 14 mW and a photoelectric conversion efficiency of 5% at a drive current of 100 mA.
DALTON TRANSACTIONS
(2023)
Article
Spectroscopy
Suleiman A. Haruna, Huanhuan Li, Muhammad Zareef, Md Mehedi Hassan, Muhammad Arslan, Wenhui Geng, Wenya Wei, Munir Abba Dandago, Selorm Yao-Say Solomon Adade, Quansheng Chen
Summary: This study investigated two key parameters for evaluating the oxidation level in crude peanut oil. The combination of near-infrared spectroscopy and chemometric algorithms was attempted and assessed. The results showed that near-infrared spectroscopy coupled with CARS-PLS could be used as a fast and non-invasive technique for quantifying acid value and peroxide value in crude peanut oil.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Spectroscopy
Nana Adwoa Nkuma Johnson, Selorm Yao-Say Solomon Adade, Suleiman A. Haruna, John-Nelson Ekumah, Yongkun Ma
Summary: This study investigated the prospects of using near-infrared (NIR) spectroscopy and effective variable selection algorithms for quantifying phytochemical compounds in chickpea beverages. The competitive adaptive reweighted sampling-partial least squares (CARS-PLS) model showed superior performance in predicting biochanin A, chlorogenic acid, pcoumaric acid, and stigmasterol.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Analytical
Yingrui Geng, Huanchao Shen, Hongfei Ni, Yunong Tian, Zhenjie Zhao, Yong Chen, Xuesong Liu
Summary: The study proposes an efficient non-supervised parameter-free calibration enhancement method for quality assessment in the tobacco industry. It corrects the effects of moisture and material scattering on spectral absorption in the calibration transfer from dried tobacco powder to undried tobacco samples. Compared to other calibration methods, the proposed method achieves the best prediction results. Additionally, competitive adaptive reweighted sampling, variable combination population analysis, and variable combination population analysis genetic algorithm are employed to select important wavelengths and optimize the calibration effect and transfer efficiency.
MICROCHEMICAL JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Behzad Hasanzadeh, Yousef Abbaspour-Gilandeh, Araz Soltani-Nazarloo, Eduardo De la Cruz-Gamez, Jose Luis Hernandez-Hernandez, Miriam Martinez-Arroyo
Summary: The quality assessment and grading of agricultural products is an important post-harvest activity. Non-destructive methods, especially visible/near-infrared spectroscopy, have been widely used for evaluating the quality of agricultural products with high accuracy.
Article
Chemistry, Analytical
Robert C. Spiers, Callan Norby, John H. Kalivas
Summary: Determining sample similarity is crucial in analytical chemistry, but quantifying it is a challenge. This paper introduces PRISM, a hybrid method that integrates spectral similarity information with contextual considerations to evaluate sample similarity. PRISM is tested on NIR data sets for various applications and shows effectiveness in collecting and integrating similarity information to produce quantitative evaluations.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Puneet Mishra, Junli Xu, Kristian Hovde Liland, Thanh Tran
Summary: This paper introduces a novel approach called META-PLS for automatic NIR spectral modeling. The approach utilizes the stepwise nature of PLS algorithm and a weighted randomization test to avoid exhaustive search for preprocessing selection and the optimal number of model components.
ANALYTICA CHIMICA ACTA
(2022)
Article
Food Science & Technology
Ragya Kapoor, Amir Malvandi, Hao Feng, Mohammed Kamruzzaman
Summary: This study aimed to explore the commercial applications of fruit and vegetable powders as edible coatings to enhance various functional and nutritional characteristics of apple slices. The results showed that miniature NIR spectroscopy was able to effectively monitor the drying process and discriminate between coated and uncoated apple slices based on differences in sugar and water absorption bands.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Valeria Fonseca Diaz, Jean-Michel Roger, Wouter Saeys
Summary: Traditional calibration transfer involves transferring models between instruments using standard samples. Recent research suggests that transfer techniques can also be applied to achieve calibration transfer between different domains, without the need for standard samples or new reference analyses, for more efficient results.
ANALYTICA CHIMICA ACTA
(2022)
Article
Instruments & Instrumentation
Ahmad Asghari, Ashraf Haj Hosseini, Peyman Ghajarbeygi
Summary: The study utilized ATR-FTIR spectroscopy with PLS to quantitatively analyze Histamine in tuna, showing that GA-PLS performed better than i-PLS with lower RMSE values and higher correlation coefficient. This method demonstrated a lower quantification limit of 4.68 ppm in the concentration range of 5 to 100 ppm, illustrating its feasibility for quick and reliable analysis in the fish products industry.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Instruments & Instrumentation
Amir Malvandi, Ragya Kapoor, Hao Feng, Mohammed Kamruzzaman
Summary: This study evaluated the use of a portable near-infrared spectrometer for real-time assessment and monitoring of apple hardness during ultrasonic drying. Calibration models were developed using PLS and ANN, and their performances were evaluated. Results showed that models using selected wavelengths accurately predicted apple hardness, indicating the potential of portable NIR spectrometers for real-time monitoring during ultrasonic drying.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Automation & Control Systems
Jose F. Q. Pereira, Maria Fernanda Pimentel, Ricardo S. Honorato, Rasmus Bro
Summary: This study developed a methodology based on hierarchical soft classification method combining multivariate analysis techniques and Hyperspectral Near Infrared Images for confirming identification of bloodstains on colored and printed fabrics. Results showed that PCA models were effective in discriminating blood samples from common false positives on synthetic fabrics, while PLS-DA was needed for samples prepared on cotton fabrics. The hierarchical classification model combining PCA and PLS-DA showed high sensitivity and specificity in distinguishing between different types of blood samples and false positives on both synthetic and cotton fabrics.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2021)
Article
Biotechnology & Applied Microbiology
Leandro Franca, Silvia Grassi, Maria Fernanda Pimentel, Jose Manuel Amigo
Summary: This study presents a comprehensive approach to monitoring the entire process of craft beer production using Near Infrared spectroscopy combined with MSPC. The results demonstrate the simplicity, speed, and reliability of this method for global monitoring and control of the beer-making procedure.
FOOD AND BIOPRODUCTS PROCESSING
(2021)
Article
Spectroscopy
Andre Braz, Carolina Santos Silva, Ana Christina Peixoto, Maria Fernanda Pimentel, Goreti Pereira, Patricia Caixeta Castro Souza Braga, Andre Luiz Martini, Thaynara Lino Fernandes Alcantara
Summary: This study utilized a portable Raman spectrometer and chemometrics for fast identification of synthetic cathinones in seized packages, detecting key spectral regions for differentiation. Purified spectra were used for estimating component concentrations, and analysis showed differences in Raman shifts and intensity of characteristic bands could discriminate among samples. The proposed method has potential for objective and contactless identification of seized synthetic cathinones.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Bruno Henrique da Silva Melo, Rafaella Figueiredo Sales, Lourival da Silva Bastos Filho, Jorge Souza Povoas da Silva, Aluska Gabrielle Carolino de Almeida Sousa, Deborah Maria Camara Peixoto, Maria Fernanda Pimentel
Summary: This study evaluated a handheld NIR spectrometer for developing calibration models to quantify brix and pol in an industrial sugar production process. Results showed that SVR performed the best in handling non-linear relationships within the data, leading to more accurate predictions of brix and pol content.
Article
Spectroscopy
Aline C. S. Fonseca, Jose F. Q. Pereira, Ricardo S. Honorato, Rasmus Bro, Maria Fernanda Pimentel
Summary: This study evaluated the potential of identifying human blood in stains deposited on different types of floor tiles using a portable NIR instrument, achieving high sensitivity and specificity results. Hierarchical models combining multivariate analysis techniques successfully identified traces of human blood, animal blood, and common false positives, demonstrating significant advances in the methodology for identifying human blood stains at crime scenes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Flavio M. de Andrade, Rafaella Sales, Neirivaldo C. da Silva, Maria Fernanda Pimentel
Summary: This study presents a novel multivariate calibration method using virtual standards for the on-line monitoring of alkyl-esters content during biodiesel production. By mathematically mixing spectra from pure components and performing an adjustment, the need for calibration samples is greatly reduced, resulting in similar predictive results compared to conventional methods.
Article
Biotechnology & Applied Microbiology
Gabriel O. Locatelli, Maria Fernanda Pimentel, Luciano A. Bueno, Murillo Lobo, Gabriel M. Mascarin, Christine L. Luna Finkler
Summary: The aim of this study was to optimize the nutritional conditions for microsclerotia (MS) production using low-cost carbon and nitrogen sources for two strains of Trichoderma asperellum from Brazil. The results showed that the optimal conditions for BRM-29104 strain were sucrose and autolyzed yeast as carbon sources, carbon concentration of 20 g L-1, and C:N ratio of 10:1, which resulted in high MS yield. Vacuum filtration using a nylon filter increased the concentration of MS.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2022)
Article
Automation & Control Systems
Luan Cassio Barbosa-Patricio, Rafaella de F. Sales, Neirivaldo C. da Silva, Maria Eduarda Fernandes da Silva, Livia Rodrigues e Brito, Maria Fernanda Pimentel
Summary: This study proposes a method based on the physicochemical properties of gasoline to quickly compare gasoline samples. By developing a computational approach to generate virtual samples and considering the uncertainties of measurement methods, the need for repeated measurements can be reduced. The results show that the proposed method has a high discriminability for gasoline comparison.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2022)
Article
Chemistry, Applied
Jose Marcelino Netto, Fernanda A. Honorato, Paulo Gustavo Celso, Maria Fernanda Pimentel
Summary: This study developed a method based on near infrared spectroscopy to identify adulterated almond flour. The results showed that portable NIR instruments are highly efficient for the identification and quantification of adulterated almond flour.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Maria J. da Silva, Ana Paula S. Paim, Iago J. S. da Silva, Maria Fernanda Pimentel, Maria Luisa Cervera, Miguel de la Guardia
Summary: This study determined the levels of total mercury in various food samples consumed by people of different ages in Spain and evaluated the potential toxicological risks. The results showed that if tuna is excluded from the menu, the daily intake of total mercury does not pose risks to Spanish children and adults.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Aline C. S. Fonseca, Jose F. Q. Pereira, Ricardo S. Honorato, Rasmus Bro, Maria Fernanda Pimentel
Summary: This study aims to enhance the performance of hierarchical models in identifying bloodstains deposited at different times. The best results were achieved by adding fresher samples to the training set and using partial least squares-discriminant analysis as the second decision rule. The hierarchical model showed high sensitivity and specificity for samples aged between zero and 30 days.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Erklaylle G. C. Silva, Carolina S. Silva, M. Fernanda Pimentel
Summary: This study evaluates the advantages and disadvantages of using infrared spectroscopy and chemometric techniques for document dating in forensics. It finds that storage conditions, such as temperature and exposure to UV radiation, have an influence on the aging process of paper. Regression models based on partial least squares are used to analyze the data.
Article
Chemistry, Applied
Claudia Jessica Da Silva Cavalcanti, Joao Paulo Da Silva Queiroz, Luiz Stragevitch, Florival Rodrigues De Carvalho, Maria Fernanda Pimentel
Summary: In this study, the ethanol fuel dehydration process was optimized using Aspen Plus simulator and a multivariate statistical technique, evaluating the suitability of ionic liquids as extractive distillation entrainers. The results showed that [Mim][Cl] had the lowest energy consumption, and multivariate statistical techniques were effective in minimizing energy consumption and achieving high efficiency.
CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY
(2021)
Article
Agronomy
Zeyang Bao, Qihang Zhou, Yan Yu, Wei Chen, Zhenfeng Yang, Shifeng Cao, Liyu Shi
Summary: Exogenous melatonin treatment can alleviate the chilling-induced browning in cold-stored peaches by upregulating gene expression and affecting DNA methylation levels to increase phenolic accumulation.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Guolong Li, Zhishu Tang, Zhongxing Song, Xinbo Shi, Changle Liu, Qiang Chen, Hongbo Liu
Summary: This study investigated the accumulation of flavonoids in Chinese sour jujube fruits from five different harvest times using a combined metabolomics and transcriptomics approach. A total of 1539 differentially accumulated metabolites (DAMs) and 11592 differentially expressed genes (DEGs) were identified. The biosynthetic pathways for flavonoids, flavones, and flavanols were significantly enriched. A regulatory network for flavonoids biosynthesis was built and key genes related to flavonoid biosynthesis were identified.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Xuejiao Zhang, Xiaoyuan Zheng, Ruirui Yang, Qihui Wang, Lu Bai, Di Gong, Ye Han, Dov Prusky, Yang Bi
Summary: UV-C radiation promotes flavonoid synthesis in potato tuber wounds during early healing by upregulating the expression and activities of key enzymes and transcription factors involved in the flavonoid synthesis pathway, as well as increasing ABA levels and signaling.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jiaqi Xiao, Yunyun Xie, Xiangjin Kong, Kuan Peng, Hong Zhu, Yueming Jiang, Hongxia Qu
Summary: The study reveals the positive role of Ca2+ ATPase in litchi energy metabolism and senescence. Higher expression of LcACAs is associated with better storability in litchi cultivars. Additionally, LcACA2 is identified as a target of LcmiR482e and ATP application can downregulate the expression of LcmiR482e, contributing to delayed senescence in litchi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Asunta Mukami, Bicko Steve Juma, Cecilia Mweu, Richard Oduor, Wilton Mbinda
Summary: This study employed the CRISPR-Cas9 system to mutate genes in cassava, resulting in an extended shelf life of cassava roots and improved yield stability and farmers' income.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Paulo Sergio Gularte, Samara Martins Zanella, Cristiano Andre Steffens, Marceli Buss, Janaiana Catarina da Silva, Willian Coser, Aquidauana Miqueloto, Cassandro Vidal Talamini do Amarante
Summary: This study evaluated the impact of nitric oxide application on fruit quality and anaerobic metabolism products. The results showed that nitric oxide at appropriate concentrations can reduce respiration and ethylene evolution rates, preserve firmness, and reduce metabolite production and decay incidence.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yiting Li, Sicong You, Shasha Wu, Mengyao Wang, Jin Song, Weijie Lan, Kang Tu, Leiqing Pan
Summary: This study aimed to compare the discrimination ability and detection limit of visible and short-wave near-infrared hyperspectral imaging features and spectral information on early implicit bruised pears. Physical characteristics were more sensitive than chemical parameters for bruised pears during postharvest storage. The changes in spectral variations at specific wavelengths could explain the bruising changes in pears. Discrimination models based on selected spectral variables could effectively identify bruised pear areas, and the combination of imaging features and spectral variables achieved higher discrimination rates.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yu Du, Mengyue Wang, Mengting Tong, Dengyun Wu, Jianzhou Chu, Xiaoqin Yao
Summary: This study investigated the effects of sucrose, brassinolide (BR), and their combination on the storage quality of kale sprouts. The results showed that the combined treatment improved the growth and development of sprouts, reduced oxidative stress, and inhibited nutrient loss. Furthermore, the combination treatment maintained the antioxidant capacity and nutrient content of kale sprouts.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Zhiwen Hu, Jing Wei, Weimin Zhang, Long Wu, Di Gong, Yue Xiang, Jialiang Liu, Zhengke Zhang
Summary: In this study, the researchers investigated the effect of melatonin (Mel) on the phytotoxicity and residues of the fungicide prochloraz (Pcz) in mango fruit during storage. The results showed that pretreatment with Mel reduced Pcz residues and alleviated phytotoxicity in the fruit. Mel also suppressed Pcz-induced oxidative stress and enhanced the detoxification capacity of the fruit.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Bin Duan, Okwong Oketch Reymick, Zhaoguo Liu, Yun Zhou, Xin Wang, Zhao Feng, Nengguo Tao
Summary: The monoterpene citral can enhance disease resistance and reduce fruit decay in postharvest citrus fruit. It increases the activity of certain enzymes and the content of specific compounds, as well as triggers the accumulation of plant hormones and metabolites. Gene expression analysis reveals that citral upregulates genes involved in the jasmonic acid pathway and phenylpropanoid biosynthesis.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Meiqi Li, Xinhua Zhang, Jiaoqi Li, Maratab Ali, Yuting Wang, Xiuling Liu, Fujun Li, Xiaoan Li
Summary: This research aimed to investigate the potential action mechanism of gamma-aminobutyric acid (GABA) in controlling Botrytis cinerea (B. cinerea) in tomato fruit. The findings showed that GABA treatment effectively reduced the disease incidence and lesion diameter of tomato fruit caused by B. cinerea. GABA triggered defense responses and up-regulated the expression of pathogenesis-related genes, while also inhibiting the expression of ethylene synthesis genes.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Heeduk Oh, Marti Pottorff, Lara Giongo, Charles M. Mainland, Massimo Iorizzo, Penelope Perkins-Veazie
Summary: This study evaluated a large set of blueberry cultivars to understand the relationship between mechanical texture and appearance characteristics at harvest and after storage, and tested multiple statistical models to predict shelf-life. The results showed that fruit characteristics measured at harvest or two weeks post-harvest can predict weight loss, texture change, and fruit wrinkling. These findings provide empirical data that blueberry breeders can use to select cultivars with extended shelf-life.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Haitao Yu, Liuli Song, Jingjing Han, Xiaoyu Yu, Yuzhen Wu, Zhifang Yu
Summary: This study found that H2S treatment can delay the senescence process of postharvest pakchoi by regulating antioxidant system, endogenous H2S and NO metabolism. H2S increased the activities of antioxidant enzymes by up-regulating the expression of enzyme genes, reducing the accumulation of harmful substances. Furthermore, H2S increased the content of cysteine and nitrate in pakchoi by regulating the expression of related genes and enzyme activities, thus slowing down the senescence of pakchoi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jasna Mastilovic, Zarko Kevresan, Dragan Kukolj, Renata Kovac, Dragana Ubiparip Samek, Stevan Stankovski, Gordana Ostojic, Marina Deric
Summary: This study analyzes the patent portfolio and trends of sensors in postharvest of fresh produce, providing insights into the development of sensing technologies in this area. China is the leading country in patent applications, and the patent themes include produce sorting and packaging, produce storage, and the development and application of sensors. The findings highlight the significant impact of these technologies on postharvest processes, particularly in quality and safety monitoring. Moreover, they are expected to facilitate the integration of artificial intelligence into postharvest processes, enhancing the coherence and efficiency of supply chains.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Gal Nomberg, Gulab Chand Arya, Ekaterina Manasherova, Ofir Marinov, Oded Yarden, Hagai Cohen
Summary: Certain fleshy fruit species form a polyphenolic suberized peridermal skin to seal wounded skin and prevent invasion by pathogenic fungi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)