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Identification of non-volatile compounds during the pile fermentation process of Liupao tea using widely targeted metabolomics based on UPLC-QTOF-MS.
J Food Sci Technol
February 2025
School of Food and Pharmaceutical Engineering (Liupao Tea modern Industry College), Wuzhou University, Wuzhou, 543002 China.
Unlabelled: Pile fermentation plays a crucial role in the formation of the unique flavor of Liupao tea, which can effectively reduce the bitterness of the tea and promote the formation of red tea soup. In this study, the non-volatiles changes of Liupao tea during pile fermentation processing were fully analyzed by UPLC-QTOF-MS/MS. A total of 271 metabolites with significant differences were identified in Liupao tea during pile fermentation( < 0.
View Article and Find Full Text PDFPolysorbates degrading enzymes in biotherapeutics - a current status and future perspectives.
Front Bioeng Biotechnol
January 2025
Pharmaceutical Development Biologicals, TIP, Boehringer Ingelheim Pharma GmbH & Co., KG, Innovation Unit, Biberach an der Riss, Germany.
Polysorbates, in particular polysorbate (PS) 20 and 80, are the most commonly used surfactants for stabilising biotherapeutics produced by biotechnological processes. PSs are derived from ethoxylated sorbitan (a derivative of sorbitol) esterified with fatty acids of varying chain length and degree of saturation. In the past, these surfactants have been reported to have specific liabilities.
View Article and Find Full Text PDFHigh-performance thin-layer chromatography-umu combined with nontarget analysis-a sensitive genotoxicity screening tool applicable for potable water analysis.
Environ Toxicol Chem
January 2025
Zweckverband Landeswasserversorgung, Laboratory for Operation Control and Research, Langenau, Germany.
Monitoring of genotoxic chemicals released into the water cycle or formed through transformation processes is critical to prevent harm to human health. The development of the high-performance thin-layer chromatography (HPTLC)-umu bioassay combines sample separation and detection of genotoxic substances in the low ng/L concentration range. In this study, raw, process, and drinking water samples from 11 different waterworks in Germany were analyzed using the HPTLC-umu.
View Article and Find Full Text PDFMultidimensional library for the improved identification of per- and polyfluoroalkyl substances (PFAS).
Sci Data
January 2025
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
As the occurrence of human diseases and conditions increase, questions continue to arise about their linkages to chemical exposure, especially for per-and polyfluoroalkyl substances (PFAS). Currently, many chemicals of concern have limited experimental information available for their use in analytical assessments. Here, we aim to increase this knowledge by providing the scientific community with multidimensional characteristics for 175 PFAS and their resulting 281 ion types.
View Article and Find Full Text PDFRevisiting secondary model features for describing the shoulder and lag parameters of microbial inactivation and growth models.
Int J Food Microbiol
January 2025
Departamento de Ingeniería de Alimentos y del Equipamiento Agrícola, Instituto de Biotecnología Vegetal, Universidad Politécnica de Cartagena (ETSIA), Paseo Alfonso XIII, 48, 30203 Cartagena, Spain.
The Baranyi and Geeraerd models are two of the most reliable models for the description of, respectively, microbial growth and inactivation. They are defined as a system of differential equations, whose algebraic solution can describe the microbial response during isothermal conditions, especially when combined with suitable secondary models. However, there are still large uncertainties regarding the best functions to use as secondary models for the lag phase duration (λ) and the shoulder length (S).
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