Objective: To isolate and elucidate the chemical constituents in the roots of Rabdosia japonica.
Method: The constituents were extracted by ether and isolated by chromatography on silica gel and ODS. The structures were determined by IR, H NMR, 13C NMR and MS spectra respectively.
Result: Four compounds were elucidated as glaucocalgxin A, oleanolic acid, ursolic acid and daucosterol.
Conclusion: Oleanolic acid and daucosterol were isolated from this plant for the first time.
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Luminescence
January 2025
Department of Display Science and Engineering, Pukyong National University, Busan, Republic of Korea.
The influence of Eu concentration on the crystal structure and photoluminescence (PL) properties of Ca(PO):xEu (0.06 ≤ x ≤ 0.10) phosphors is systematically investigated using X-ray diffraction (XRD) Rietveld refinement, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, UV-visible spectroscopy, and PL spectroscopy.
View Article and Find Full Text PDFComb Chem High Throughput Screen
January 2025
School of Pharmacy, D.Y. Patil University (Deemed to be University), Sector 7, Nerul, Navi Mumbai 400706, India.
Introduction: Hedychium coronarium J. König, from the Zingiberaceae family, is a rhizomatous herb used in Ayurvedic medicine for its febrifuge, anti-rheumatic, and anthelmintic properties.
Method: This study characterizes the chemical diversity and biological activities of H.
Carbohydr Polym
March 2025
Chemical Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula 403004, Goa, India.
Macroalgae growing in the polar regions are exposed to extreme environment conditions and may induce differences in the structural and bioactive properties of their polysaccharides. Six brown macroalgae viz. kelp species - Saccharina latissima, Laminaria digitata, and Alaria esculenta; rockweed Fucus distichus; and filamentous macroalgae - Chorda filum and Chordaria flageliformis, from the Arctic were investigated for polysaccharides and their bioactivity.
View Article and Find Full Text PDFPhytomedicine
January 2025
Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou 510632, China. Electronic address:
Background: The concept of a Quality marker (Q-marker) has emerged as a crucial tool for ensuring the safety and efficacy of Traditional Chinese Medicine (TCM) formulas. However, significant challenges remained in the identification and practical application of Q-marker, particularly due to the scarcity of reference standards.
Purpose: This study aimed to achieve a multidimensional integration of chemical profiling, target tissue distribution and in vivo high-throughput screening model to effectively identify the Q-marker of Shensong Yangxin Capsule (SSYX) and propose a linear substitution strategy for the quantification of multiple components.
J Hazard Mater
January 2025
Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. Electronic address:
Evidence on the association of long-term exposure to fine particular matter (PM) and its chemical constituents with the prognosis of oral cancer patients is limited. We identified 1673 oral cancer patients from 2011 to 2021 in Fujian, China. We evaluated annual average concentrations of PM and constituents, including nitrate, sulfate, ammonium, black carbon (BC), and organic matter (OM), using bilinear interpolation based on the patients' residential address.
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