Results 31 to 40 of about 25,230 (162)

The underappreciated diversity of furanocoumarins in grapefruits revealed by MassQL filtered molecular networking

Food Chemistry: X
Grapefruit is one of the most popular Citrus fruits, which is beneficial for health. Coumarins are the main secondary metabolites in grapefruits. The structural and functional diversity makes the comprehensive determination of coumarins in complex system
Shilin Gong, Guoyu Bai, Yujuan Ban, Meixian Liu, Ying Liu, Yuyao Wu, Na Li, Jian-Lin Wu   +7 more
doaj   +1 more source

Switchable Coumarins for Ratiometric pH Sensing

Frontiers in Materials, 2021
A fluorescent chromophore and a pH-sensitive heterocycle were integrated within a single covalent skeleton to generate four molecular switches with ratiometric fluorescence response.
Mercedes M. A. Mazza, Francesca Cardano, Francesca Cardano, Francesca Cardano, James D. Baker, Silvia Giordani, Silvia Giordani, Françisco M. Raymo   +7 more
doaj   +1 more source

Effect of IAA on coumarins synthesis in Angelica dahurica under soil compactness stress

Scientific Reports
Angelica dahurica (Hoffm.) Benth. & Hook.f. ex Franch. & Sav (A. dahurica) is widely used in food, medicine and other applications due to its rich content of starch and secondary metabolites and is grown on a large scale in southwestern and northern ...
Xinglong Zhu, Xiaoyan Chen, Chengfeng Huang, Yongfeng Zhou, Tao Zhou, Qinghua Wu, Jin Pei   +6 more
doaj   +1 more source

Mapping the Biotransformation of Coumarins through Filamentous Fungi

Molecules, 2019
Natural coumarins are present in remarkable amounts as secondary metabolites in edible and medicinal plants, where they display interesting bioactivities.
Jainara Santos do Nascimento, Wilson Elias Rozo Núñez, Valmore Henrique Pereira dos Santos, Josefina Aleu, Sílvio Cunha, Eliane de Oliveira Silva   +5 more
doaj   +1 more source

Coumarins in traditional medicine: Bridging ancient wisdom and scientific progress

Phytomedicine Plus
Coumarins are a diverse group of naturally occurring compounds long recognized in traditional medicine for their broad therapeutic potential. This narrative review explores their journey from ancient healing traditions—such as Ayurveda, Traditional ...
Yasser Fakri Mustafa
doaj   +1 more source

Triphenylphosphine Mediated Synthesis of Functionalized Benzo-Fused Coumarins from Some OH Acids and Dialkyl Acetylene Dicarboxylate

Journal of Chemistry, 2013
Benzo-fused coumarins are prepared from 4-quinolinol by treatment with PPh3 and dialkyl acetylenedicarboxylate. Angular coumarins are prepared from 3-isoquinolinol and 7-hydroxyl coumarine with PPh3 and dialkyl acetylenedicarboxylate.
Bita Mohtat, Semiramis Nahavandian, Maryam Razaghi, Saeedeh Farsijani, Hoorieh Djahaniani   +4 more
doaj   +1 more source

Changes in cell ultrastructure and morphology of Arabidopsis thaliana roots after coumarins treatment

Acta Societatis Botanicorum Poloniae, 2014
The ultrastructure and morphology of roots treated with coumarin and umbelliferone as well as the reversibility of the coumarins effects caused by exogenous GA, were studied in Arabidopsis thaliana.
Ewa Kupidłowska
doaj   +1 more source

The Use of Coumarins as Environmentally-Sensitive Fluorescent Probes of Heterogeneous Inclusion Systems

Molecules, 2009
Coumarins, as a family of molecules, exhibit a wide range of fluorescence emission properties. In many cases, this fluorescence is extremely sensitive to the local environment of the molecule, especially the local polarity and microviscosity. In addition,
Brian D. Wagner
doaj   +1 more source

Rapid Identification of two Species of by High-Performance Liquid Chromatography-Diode Array Detection-Electrospray Ionization Tandem Mass Spectrometry

Natural Product Communications, 2009
The fragmentation behaviors of the angular- and linear-type coumarins from Peucedanum praeruptorum Dunn and P. decursivum (Miq.) Maxim were simultaneously investigated by HPLC-DAD/ESI-MS n .
Yanyan Tao, Jianguang Luo, Yuanyuan Lu, Deran Xu, Zhiguo Hou, Lingyi Kong   +5 more
doaj   +1 more source

Coumarins and P450s, Studies Reported to-Date

Molecules, 2019
Cytochrome P450 enzymes (CYPs) are important phase I enzymes involved in the metabolism of endogenous and xenobiotic compounds mainly through mono-oxygenation reactions into more polar and easier to excrete species.
Maryam Foroozesh, Jayalakshmi Sridhar, Navneet Goyal, Jiawang Liu   +3 more
doaj   +1 more source