Review
Food Science & Technology
Marta Moniente, Laura Botello-Morte, Diego Garcia-Gonzalo, Rafael Pagan, Ignacio Ontanon
Summary: This article provides an overview of the analytical methods for determining biogenic amines in dairy products, highlighting the latest and most promising advances in this field. By summarizing the analytical techniques and listing the required sample pretreatments, it serves as a helpful guideline for beginners in choosing the best option for determining biogenic amines in dairy products.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2022)
Review
Engineering, Biomedical
Ming Yao, Manibarathi Vaithiyanathan, Nancy L. Allbritton
Summary: Lipids are essential cellular components with diverse functions in cells. Dysfunction in lipid metabolism and signaling is linked to various diseases. Single-cell lipid assays are challenging due to the small size of cells and the large number of lipid species. However, there are several methodologies, such as mass spectrometry, Raman imaging, and fluorescence-based assays, that enable the analysis of lipids in single cells with high resolution and sensitivity.
ANNUAL REVIEW OF BIOMEDICAL ENGINEERING
(2023)
Article
Chemistry, Analytical
Joao Basso, Maria Luisa Ramos, Alberto Pais, Rui Vitorino, Ana Fortuna, Carla Vitorino
Summary: The article presents an AQbD approach for the development and validation of an HPLC method for quantifying disulfiram and copper diethyldithiocarbamate in lipid nanoparticles. By analyzing CMPs and using experimental design, the optimal method was validated and found to be suitable for analysis using different columns and equipment. Overall, the strategies under AQbD framework provided an effective and flexible method for routine analysis in research or industrial settings.
Review
Biochemistry & Molecular Biology
Gregor Marolt, Mitja Kolar
Summary: This paper critically reviews the development of analytical principles and methods for analyzing phytic acid and other inositol phosphates in biological samples, highlighting the challenges and importance of such analysis. It outlines the evolution of techniques from classical methods to the latest bio- and nano-sensors.
Article
Medical Laboratory Technology
Lennart Jan van Winden, Eef G. W. M. Lentjes, Ayse Y. Demir, Henk J. Huijgen, Andries Marinus Bergman, Henk G. van der Poel, Huub H. van Rossum
Summary: The current testosterone cut-off for evaluating castration adequacy may be too high, and modern automated immunoassays lack accuracy in measuring testosterone levels in castrated PCa patients. Therefore, a reevaluation of the testosterone castration standard and improvement in AIA analytical accuracy is needed.
CLINICAL CHEMISTRY AND LABORATORY MEDICINE
(2022)
Review
Biotechnology & Applied Microbiology
Albert-Donald Luong, Ipsita Roy, Bansi D. Malhotra, John H. T. Luong
Summary: Human insulin plays a crucial role in diabetic management by regulating carbohydrate metabolism to maintain blood glucose levels. Simultaneous measurement of glucose and insulin is essential for better glucose control, and glucose meters have become less invasive and more powerful for reliable glucose quantification. Emerging non-invasive devices offer continuous glucose monitoring capabilities, while biosensing utilizing aptamers and molecular imprinted polymers show promise for future insulin detection advancements.
SENSORS AND ACTUATORS REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Thalia Tsiaka, Natalia A. Stavropoulou, Maria C. Giannakourou, Irini F. Strati, Vassilia J. Sinanoglou
Summary: This study focuses on the optimization of ultrasound-assisted extraction for the recovery of phenolic compounds from the post-distillation byproducts of rose. The extracts showed significant antioxidant and antiradical activities, making them a promising alternative antioxidant agent for food products.
Article
Biochemistry & Molecular Biology
Jose R. Ayala, Gisela Montero, Marcos A. Coronado, Conrado Garcia, Mario A. Curiel-Alvarez, Jose A. Leon, Carlos A. Sagaste, Daniela G. Montes
Summary: Millions of tons of food are produced annually to feed the growing world population, with oranges being a significant source. This study aimed to produce bioethanol from orange peel by fermenting reducing sugars, and determine the optimal experimental conditions for maximizing sugar yield.
Article
Energy & Fuels
Ricardo Torres, Benjamin Valdez, Mary T. Beleno, Marcos A. Coronado, Margarita Stoytcheva, Conrado Garcia, Benjamin A. Rojano, Gisela Montero
Summary: This paper proposes a new approach to the torrefaction process by obtaining a single torrefied product with standardized physicochemical properties. The effects of temperature, time, and reaction atmosphere on the properties of the torrefied product were investigated. Through optimization, the mass and energy yield and the higher heating value were increased. The obtained char showed similar properties to sub-bituminous coal and had improved fuel properties compared to raw biomass.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Analytical
Roumen Zlatev, Rogelio Ramos, Margarita Stoytcheva, Benjamin Valdez, Mario Curiel
Summary: A virtual instrument based on LabVIEW 2010 platform was developed for automated monitoring of H2O2 concentration in SC-1 etching solution in semiconductor industry. The instrument controls all analyzer functions and allows for real-time concentration correction by adding fresh solution to the etching machine. Analytical characterization and validation were conducted using industrial sample analysis compared to a standard permanganate method.
INSTRUMENTATION SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Jose A. Leon, Gisela Montero, Marcos A. Coronado, Jose R. Ayala, Daniela G. Montes, Laura J. Perez, Lisandra Quintana, Jesus M. Armenta
Summary: The study found that the alkaline biodiesel production process has higher efficiency and advantages when using solar energy as the main source of energy compared to production processes under supercritical conditions. Solar thermal energy collection systems can significantly reduce energy and exergy destruction in the global process.
Review
Chemistry, Organic
Samuel Lepe de Alba, Conrado Garcia-Gonzalez, Marcos A. Coronado Ortega, Jose R. Ayala Bautista, Gisela Montero Alpirez, Daniela G. L. Montes Nunez
Summary: The neem tree is a versatile plant, containing numerous bioactive compounds that can be extracted from different parts such as bark, husk seed, seed, seed oil, tree, leaves, and flowers. Over 300 phytochemicals have been identified from neem. This study provides techniques for extracting compounds from neem and discusses their medicinal, environmental, and veterinary applications, as well as their use in cattle raising and various industries, based on a systematic documentary analysis since 2019.
MINI-REVIEWS IN ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Roumen Zlatev, Margarita Stoytcheva, Benjamin Valdez, Mario Curiel
Summary: A simple and inexpensive differential calorimetric sensor was developed for rapid quantification of hydrogen peroxide (H2O2) in industrial solutions. The sensor achieved a response time of 195 seconds, eliminated the influence of initial sample temperature, and addressed the precision degradation caused by parasitic heat. It showed a linear quantification range of 0.05-1.5 mol L-1 H2O2 with a limit of detection of 0.035 mol L-1 H2O2.
CURRENT ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
D. G. Montes-Nunez, G. Montero-Alpirez, M. A. Coronado-Ortega, J. R. Ayala-Bautista, J. A. Leon-Valdez, A. M. Vazquez-Espinoza, R. Torres-Ramos, C. Garcia-Gonzalez
Summary: The study assessed a conversion path for the valorization of castor and jatropha seeds, resulting in a high extraction yield of castor oil and jatropha oil under specific conditions. The physicochemical properties of the oils and their biodiesel were within acceptable ranges. This study provides experimental data and evidence for the utilization of castor and jatropha as feedstocks for biodiesel production.
Article
Chemistry, Multidisciplinary
Margarita Stoytcheva, Roumen Zlatev, Zdravka Velkova, Velizar Gochev, Benjamin Valdez, Mario Curiel
Summary: Zirconia-modified carbon paste electrode was prepared and applied for efficient ibuprofen quantification by differential pulse adsorptive stripping voltammetry. The modified electrode showed increased surface area and excellent adsorption performance, resulting in a significant signal increase compared to the bare electrode. Under optimized conditions, the modified electrode exhibited a linear response to ibuprofen in the range from 20 mu mol L-1 to 250 mu mol L-1.
Article
Materials Science, Paper & Wood
Edson E. Armenta, Marcos A. Coronado, Jose R. Ayala, Jose A. Leon, Daniela Montes
Summary: The global essential oil industry generates annual revenue of 5.41 billion USD and is widely used in medicine, agriculture, and perfumery. To address the high cost of equipment repair and malfunction, a pilot-scale essential oil extractor system operating through hydrodistillation was developed. This system successfully processed various citrus wastes and revealed the primary compounds present in different essential oils through GC-MS analysis. The estimated production costs for different essential oils were also determined.
Article
Electrochemistry
Margarita Stoytcheva, Roumen Zlatev, Zdravka Velkova, Velizar Gochev, Claudia Meza, Benjamin Valdez, Gergana Kirova, Yana Hristova, Lydia Toscano-Palomar
Summary: The feasibility of using readily available bare spectroscopic graphite electrode as a cost-effective alternative to modified carbon-based electrodes in pharmaceutical analysis was evaluated in this study. Paracetamol and caffeine were used as test analytes, and their electrochemical behavior was studied using cyclic voltammetry. The results showed that the bare spectroscopic graphite electrode can be used for the separate determination of paracetamol and caffeine. The electrode exhibited a linear response to both analytes under optimized experimental conditions.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Engineering, Chemical
Jesus Manuel Armenta Galvez, Jose RamonAyala Bautista, Marcos Alberto Coronado Ortega, Gisela Montero Alpirez, Daniela Guadalupe Lucia Montes Nunez, Carlos Alfonso Sagaste Bernal
Summary: Orange peel and eucalyptus leaves waste from orange processing and wood production can be used as feedstocks for essential oil production. A simulation of a solar energy-integrated process for extracting essential oils from orange peel and eucalyptus leaves was conducted. Equivalence models were used to simulate biomass and essential oils. The coupling of solar collectors allowed for the extraction of eucalyptus essential oil with a 10% reduction in total energy load.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
