Results 31 to 40 of about 987 (206)

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

Journal 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, Marly A. Maldaner Jacobi, Enio Cesar Machado Fagundes, Fabricio Celso, Otávio Bianchi   +4 more
wiley   +1 more source

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

Plants, 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, Norbert Kúsz, Gyula Pinke, Ágnes Kulmány, István Zupkó, Judit Hohmann, Andrea Vasas   +6 more
doaj   +1 more source

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

Journal 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, Marly A. Maldaner Jacobi, Enio Cesar Machado Fagundes, Fabricio Celso, Otávio Bianchi   +4 more
wiley   +1 more source

Therapeutic Activities and Phytochemical Composition of Helianthus annuus L. Extracts

Chemistry &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, Wesley Lisboa de Jesus, Maria Eduarda de Britto Sá, Jessiane Bispo de Souza, Ronaldy Santana Santos, Júlia Santana Lisboa, Pedro Henrique Macedo Moura, Deise Maria Rego Rodrigues Silva, Eloia Emanuelly Dias Silva, Lysandro Pinto Borges, Adriana Gibara Guimarães   +10 more
wiley   +1 more source

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

Journal 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, Yaoying Zeng, Qiang Wu, Ming Jia, Essam Hebishy   +4 more
wiley   +1 more source

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

Journal 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, Hua-Chang Wu, Yuheng Yan, Rui Yin, Munmun Bardhan   +4 more
wiley   +1 more source

Exploring the Antiproliferative Activity of Flavolignans From the Leaves of Casearia arborea (Salicaceae)

Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT The Casearia genus (Salicaceae) is well known as a source of natural antitumor prototypes, as described for clerodane diterpenes. In this way, the dichloromethane phase from leaves of Casearia arborea was phytochemically evaluated in liquid chromatography coupled to high‐resolution mass spectrometry, furnishing flavonoid, flavolignan, and ...
Augusto L. Santos, Mariana T. Rodrigues, Ana Paula Michelli, Rodrigo E. Tamura, Ileana G. S. de Rubió, Marisi G. Soares, Marcelo J. P. Ferreira, Patricia Sartorelli   +7 more
wiley   +1 more source

Dehydration studies of α- and β-ionol. I. With hexamethylphosphoric triamide

, 1982
α-Ionol (2) when heated under reflux with hexamethylphosphoric triamide gave principally one product (1'E)-6-(buta-1',3'-dienyl)-1,5,5-trimethylcyclohex-1-ene (4a) together with trace quantities of the (1'Z)-isomer (4b). Under similar conditions β-ionol (
G Sugowdz, FB Whitfield
core   +1 more source

Electrospun Polyvinyl Alcohol/Chitosan Nanofibers Film Loaded With Artemisia Essential Oil: A Strategy for Extending Shelf Life and Enhancing Quality of Minced Beef

Food Science &Nutrition, Volume 13, Issue 12, December 2025.
This study demonstrated that chitosan/polyvinyl alcohol nanofiber films containing Artemisia essential oil (CH + PVA + AEO) effectively reduced microbial and chemical spoilage in minced beef. Significant decreases (p < 0.05) were observed in microbial counts, pH, peroxide value, TVB‐N, TBA, and FFA compared with the control.
Amirhossein Nasiri, Tayebeh Zeinali, Elham Ansarifar   +2 more
wiley   +1 more source

Determination of ionol by voltammetry and coulometric titration

, 2020
Procedures were developed for determining ionol by voltammetry and by coulometric titration with electrogenerated chlorine using the amperometric indication of the titration end point. Possible mechanisms of ionol oxidation with electrogenerated chlorine
Abdullin I., Gogolashvili E., Turova E., Budnikov G., Parshakova Y.   +4 more
core