Results 51 to 60 of about 1,070 (212)

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

open access: yesChemistry &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   +7 more
wiley   +1 more source

A New Megastigmane Glycoside, Phoenixoside A, from

open access: yesNatural Product Communications, 2012
A new megastigmane glycoside, phoenixoside A (1), has been isolated from the n -butanol - soluble fraction of seeds of Phoenix dactylifera . The structure was characterized as (6S,7Z,9R)-hydroxy-3-oxo-ionol-9- O -β-D-glucopyranosyl-(1″→6′)-β-D ...
Sumbul Azmat   +4 more
doaj   +1 more source

Determination of ionol by voltammetry and coulometric titration

open access: yes, 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.   +4 more
core  

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

open access: yesFood 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   +2 more
wiley   +1 more source

Effects of antioxidants on regeneration of protoplasts of the filamentous fungus Trichoderma reesei 6/16

open access: yes, 2020
The relative content of antioxidants in the mycelium of Trichoderma reesei 6/16 obtained by propagation of fungal protoplasts was shown to decrease (as compared to the initial culture taken for preparation of protoplasts) and restored only in the second ...
Kozlov Yu.P.   +4 more
core   +1 more source

Multimodal floral cues resembling both generalized food sources and oviposition sites in Isotrema manshuriense (Aristolochiaceae) pollinated by flies

open access: yesPlant Biology, Volume 27, Issue 6, Page 1058-1070, October 2025.
The protogynous flowers of Isotrema manshuriense exhibit multimodal cues, resembling both generalized food sources and fly oviposition sites, with these cues varying across sexual phases. Abstract The genus Aristolochia is renowned for its kettle‐like trap flowers that temporarily retain visiting insects, primarily using trapping trichomes.
H. Lim   +7 more
wiley   +1 more source

Dehydration studies of α- and β-ionol. II. With Toluene-p-sulfonic acid

open access: yes, 1982
α-Ionol (2), when made to react with a 5% solution of toluene-p-sulfonic acid at 20 for 120 h, gave in 20% yield one major dehydration product (1'E)-6-(buta-1',3'-dienyl)-1 ,5,5-trimethylcyclohex- 1-ene (4a) together with trace quantities of the (1'Z ...
JR Hlubucek, G Sugowdz, FB Whitfield
core   +1 more source

A Simplified Approach for Electrochemical Allylic Oxidation of Olefins

open access: yesHelvetica Chimica Acta, Volume 108, Issue 7, July 2025.
A simple method for electrochemical allylic oxidation of olefins is established. t‐Butyl hydroperoxide serves in a dual‐role as mediator and oxygen source. Metal‐free and robust electrode materials such as glassy carbon, graphite, or boron‐doped diamond can be employed.
Kamil Hofman   +5 more
wiley   +1 more source

3-Oxygenated α-ionone derivatives as potent male attractants for the solanaceous fruit fly, Bactrocera latifrons (Diptera: Tephritidae), and sequestered metabolites in the rectal gland

open access: yes, 2010
A series of 3-oxygenated derivatives of α-ionone and α-ionol have been characterized as highly specific male lures for the solanaceous fruit fly Bactrocera latifrons (Hendel).
Hiroshi Enomoto   +7 more
core   +1 more source

A METHOD OF DIAGNOSING OIL-FILLED ELECTRICAL EQUIPMENT WITH APPLICATION OF A CONSTANT MAGNETIC FIELD

open access: yesВестник Северо-Кавказского федерального университета, 2022
Transformer oil is widely used in high-voltage electrical equipment and serves as a dielectric, as well as a cooling medium. It consists of a complex mixture of hydrocarbon compositions with various impurity compounds.
G. Kolesnikov, N. Shchikunov
doaj  

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