Results 41 to 50 of about 1,070 (212)

Ophiopogonin D Mediates Therapeutic Effects on Primary Sjögren's Syndrome by Modulating Gut Microbiota and Metabolite Profiles

open access: yesBiomedical Chromatography, Volume 40, Issue 6, June 2026.
ABSTRACT This study aimed to investigate the mechanism of ophiopogonin D (OD) in treating primary Sjögren's syndrome (pSS) through integrated analysis of gut microbiota and metabolomics. Non‐obese diabetic/LtJ mice, a well‐established pSS model, were used as the model group and treated with OD or hydroxychloroquine.
Fengtao Pang   +3 more
wiley   +1 more source

Jacaranone Derivatives with Antiproliferative Activity from Crepis pulchra and Relevance of This Group of Plant Metabolites

open access: yesPlants, 2022
Jacaranones are a small group of specific plant metabolites with promising biological activities. The occurrence of jacaranones is limited to only a few plant families, with Asteraceae being the most abundant source of these compounds.
Csilla Zsuzsanna Dávid   +6 more
doaj   +1 more source

Influence of Acrylonitrile Content on Processing, Morphology, Thermal Behavior, and Mechanical Properties of PA/NBR Thermoplastic Vulcanizates

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 11, March 15, 2026.
Influence of acrylonitrile (ACN) content on the processing behavior and morphological development of PA/NBR thermoplastic vulcanizates. Torque‐time profiles, SEM, and SEM/AFM images show that an intermediate ACN level (38%) promotes improved phase dispersion and morphological uniformity, especially with increased processing time, resulting in the most ...
André Luís dos Santos da Silva   +4 more
wiley   +1 more source

Mechanical, Thermal, and Morphological Properties of PA/NBR TPVs: Influence of Processing Conditions and Recyclability

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 8, February 20, 2026.
Dynamic vulcanization at higher shear rates refines PA/NBR morphology, reduces domain size, and maintains mechanical performance after reprocessing. ABSTRACT Thermoplastic vulcanizates (TPVs) of polyamide 6 and nitrile butadiene rubber (PA/NBR) present excellent mechanical properties but traditionally suffer from performance loss during re‐melt ...
André Luís dos Santos da Silva   +4 more
wiley   +1 more source

Therapeutic Activities and Phytochemical Composition of Helianthus annuus L. Extracts

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
ABSTRACT The sunflower (Helianthus annuus L.) is a plant commonly used in agriculture and the fuel industry, as well as being an ornamental garden plant. However, its biologically active compounds make it an interesting plant for medicinal purposes. This review evaluated the phytochemistry of sunflower leaves, stems, receptacles, flowers, seeds, and ...
Marina dos Santos Barreto   +10 more
wiley   +1 more source

Enzyme-mediated synthesis of (R)- and (S)-alpha-ionone.

open access: yes, 1998
Diastereoisomeric enrichment through fractional crystallisation of C-nitrobenzoate derivatives of alpha-ionol, and enantioselective enzyme-mediated reactions of alpha-ionol and alpha-ionol acetate, were usefully combined to optimise two different ...
REDAELLI MARA   +4 more
core   +1 more source

Flavor Characterization of Hunan Seasoning Sauce Using HS‐SPME‐GC‐MS Combined With Electronic Nose and Electronic Tongue

open access: yesJournal of Food Processing and Preservation, Volume 2026, Issue 1, 2026.
Headspace solid‐phase microextraction gas chromatography–mass spectrometry (HS‐SPME‐GC‐MS) method was used to characterize the volatile compounds of homemade Hunan seasoning sauce (HHS) and commercial Hunan seasoning sauces (CHS). E‐nose and E‐tongue techniques were used to detect and analyze Hunan seasoning sauce products.
Yuxin Zhang   +4 more
wiley   +1 more source

Constituents of Cydonia vulgaris: Isolation and Structure Elucidation of Four New Flavonol Glycosides and Nine New α-Ionol-Derived Glycosides

open access: yes, 1996
In a previous paper, we described the isolation of four new sesterterpenes from Cydonia vulgaris Pers. Here we report the isolation of four new flavonol glycosides (1-4) and nine new a-ionol derived glycosides (5-13) together with the known 3-oxo-alpha ...
De Simone Francesco   +7 more
core   +1 more source

Research Advances in the Synthesis of α‐ and β‐Damascone: From an Industrial Application Perspective

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Damascone, a precious natural fragrance primarily isolated from rose essential oil, is widely distributed in the flowers, leaves, or essential oils of various aromatic plants such as Rosa damascena, Osmanthus fragrans, Camellia sinensis, and Viola odorata.
Jian Huang   +4 more
wiley   +1 more source

Phytotoxic Substance with Allelopathic Activity in

open access: yesNatural Product Communications, 2015
The grass Brachiaria decumbens becomes naturalized and quickly dominant in non-native areas. It was hypothesized that phytotoxic substances of plants may contribute to the domination and invasion of the plants. However, no potent phytotoxic substance has
Ai Kobayashi, Hisashi Kato-Noguchi
doaj   +1 more source

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