Results 41 to 50 of about 8,330 (182)

Discovery of pseudobaptigenin synthase in fungal‐infected Trifolium pratense roots

open access: yesThe Plant Journal, Volume 127, Issue 1, July 2026.
Significance Statement The discovery of pseudobaptigenin synthase in red clover (CYP76F319), catalyzing the formation of a methylenedioxy bridge to convert calycosin to pseudobaptigenin. The integration of metabolomic and transcriptomic datasets to describe the defense response in red clover roots to hemibiotrophic and necrotrophic fungi.
Lee Marie Raytek   +3 more
wiley   +1 more source

Peer review of the pesticide risk assessment of the active substance Trichoderma harzianum T78

open access: yesEFSA Journal, Volume 24, Issue 7, July 2026.
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authority of the rapporteur Member State, The Netherlands, for the pesticide active substance Trichoderma harzianum T78 and the considerations as regards the inclusion of the substance in Annex IV ...
European Food Safety Authority (EFSA)   +48 more
wiley   +1 more source

2-(2,6-Dimethoxyphenyl)-5-hydroxy-7-methoxy-4H-1-benzopyran-4-one

open access: yesActa Crystallographica Section E, 2009
In the title compound, C18H16O6, the dimethoxyphenyl ring is rotated by 61.8 (1)° from the plane of the benzopyran system. The molecule is stabilized by an intramolecular O—H...O hydrogen bond.
R. Ravi Kumar   +4 more
doaj   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

Formation and Characterization of Insoluble Anthocyanins‐λ‐carrageenan Biopolyelectrolyte Complexes: Structural Morphology, Thermal Stability, and Release Dynamics

open access: yesChemFoodChem, Volume 2, Issue 2, June 2026.
Insoluble biopolyelectrolyte complexes formed between blackberry anthocyanins and λ‐carrageenan are investigated. Optimal complexation occurs at low carrageenan ratios and acidic pH, producing porous hydrogel‐like structures with enhanced thermal stability.
Tomás Garrido   +5 more
wiley   +1 more source

Potential of Chinese Mandarin Peel and Leaf (Agricultural Byproducts) as Candidate Ingredients for Functional Foods and Feeds

open access: yesFood Science &Nutrition, Volume 14, Issue 6, June 2026.
Mandarin peel (with higher contents of the key bioactive compounds hesperidin, nobiletin, and tangeretin) and leaf (with richer chemical diversity) are potential candidate ingredients for functional foods and feeds. The key bioactive compounds (hesperidin, nobiletin, and tangeretin) have optimal conditions for daily consumption, achieved through three ...
Jing Chen   +7 more
wiley   +1 more source

Synthesis, Photophysical Characterization, and Anticancer Evaluation of Novel Furochromene Derivatives

open access: yesChemistryOpen, Volume 15, Issue 6, June 2026.
This is the first study on novel furochromene derivatives. A series of novel furochromen derivatives, namely (2E)‐1‐(6‐hydroxy‐4,7‐dimethoxy‐1‐benzofuran‐5‐yl)‐3‐arylprop‐2‐en‐1‐ones 4a–c, were synthesized via the Knoevenagel condensation of 6‐hydroxy‐4,7‐dimethoxybenzofuran‐5‐ylethanone 2 with various aromatic aldehydes.
Amal Rabahi   +9 more
wiley   +1 more source

Crystal structures of fisetin dihydrate and luteolin monohydrate: crystallization from ethanol–water mixtures

open access: yesActa Crystallographica Section E: Crystallographic Communications
The crystal structures of two hydrates of aglycon flavonoids, fisetin dihydrate [systematic name: 2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-4H-1-benzopyran-4-one dihydrate, C15H10O6·2H2O, P21, Z = 2] and luteolin monohydrate [systematic name: 2-(3,4 ...
Neta Caspin   +2 more
doaj   +1 more source

5-Hydroxy-7-methoxy-4H-chromen-4-one

open access: yesActa Crystallographica Section E, 2008
The molecular conformation of the title compound, C10H8O4, isolated from Laretia acualis, is stabilized by a strong intramolecular hydrogen bond between the hydroxyl and carbonyl groups. The crystal packing shows π–π stacking interactions.
Iván Brito   +3 more
doaj   +1 more source

Thermally Bistable Stiff Stilbene Photoswitches and Polymer Applications

open access: yesThe Chemical Record, Volume 26, Issue 6, June 2026.
Thermally stable photoswitches offer new opportunities for controlling polymer structures and functions under nonequilibrium conditions. This Personal Account highlights stiff stilbene (SS) and sterically hindered stiff stilbene (HSS) photoswitches, which combine large structural changes with exceptional thermal bistability.
Keiichi Imato
wiley   +1 more source

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