has been used to treat bronchial asthma, vitiligo, nephritis and leucopenia from ancient times in China. However, its chemical composition has not been fully understood. In this study, both LC-MS and GC-MS were used to identify the chemical composition in . Consequently, 31 compounds were qualified by LC-MS/MS, 8 representative compounds of which were quantified, 62 compounds including hydrocarbons, terpenoids and coumarins were identified by GC-MS. Among a total of 93 compounds, 32 compounds (8 by LC-MS/MS and 24 by GC-MS) are undocumented for this herb. Our results will provide a crucial foundation for further studies related to its pharmaceutical activities and quality control.
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http://dx.doi.org/10.1080/14786419.2021.2007911 | DOI Listing |
Front Vet Sci
December 2024
College of Animal Science and Technology, Ningxia University, Yinchuan, China.
Introduction: Postpartum dairy cows are susceptible to negative energy balance caused by decreased feed intake and the initiation of lactation. Sijunzi San, a famous Chinese traditional herbal formulation, can promote gastrointestinal digestion and absorption and improve disorders of intestinal microbiota. Therefore, we hypothesized that Sijunzi San might alleviate negative energy balance in postpartum dairy cows by modulating the structure of the rumen microbiota and enhancing its fermentation capacity.
View Article and Find Full Text PDFAppl Biosaf
December 2024
Royal Society of Biology, London, United Kingdom.
Introduction: Cephalosporins can trigger hypersensitivity reactions in certain individuals. Consequently, strict regulations restrict the production of non-beta-lactam substances during or after cephalosporin manufacturing. Dry chlorine dioxide gas (dClO), together with ultra-performance liquid chromatography Mass spectrometry/mass spectrometry (UPLC-MS/MS) detection methods, has emerged as a promising method for decontaminating cephalosporin compounds.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, India.
An efficient modified QuEChERS procedure was established for the simultaneous determination of 37 pesticide residues in fresh and processed edible button mushroom by employing GC/ GC-MS and LC-MS/MS. The effectiveness, reliability and accuracy of the method were assessed through validation parameters such as linearity, LOD, LOQ, precision, accuracy, uncertainty, and matrix effect. The linearity calibration for all the selected pesticides at standard concentrations (0.
View Article and Find Full Text PDFFood Chem
December 2024
School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China. Electronic address:
In this study, we investigated the changes in untargeted metabolites using UHPLC-MS/MS and the flavors of nonflavored (BS1) and flavored (BS2) roasted beef using GC-MS throughout a 6-month frozen period. A total of 509, 659, and 496 metabolites met the conditions for differential screening, and 56, 103, and 47 differential metabolites were recognized between BS1 and BS2 at 0, 3, and 6 months of frozen periods, respectively. The total relative abundance of organic nitrogen compounds, phenylpropanoids, polyketides, organic acids and their derivatives, and benzenoids increased during frozen storage at 3 months and then decreased at 6 months.
View Article and Find Full Text PDFIntroduction: This study aimed to explore the impact and mechanism of Scutellariae radix (SR), dried root of Scutellaria baicalensis Georgi of Labiatae, on prenatal stress (PS) induced anxiety-like and depression-like behavior in the offspring in a mouse prenatal stress model.
Methods: The open field test (OFT), tail suspension test (TST), and forced swimming test (FST) were utilized to assess the behavior of the offspring. Histological changes were evaluated using HE staining and Nissl staining.
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