Results 101 to 110 of about 7,638 (203)
The radical-scavenging activities of the synthetic antioxidants 2-allyl-4-X-phenol (X=NO2, Cl, Br, OCH3, COCH3, CH3, t-(CH3)3, C6H5) and 2,4-dimethoxyphenol, and the natural antioxidants eugenol and isoeugenol, were investigated using differential ...
Ichiro Yokoe +5 more
doaj +1 more source
Variation in the susceptibility of Anopheles gambiae to botanicals across a metropolitan region of Nigeria [PDF]
Pesticide resistance is normally associated with genetic changes, resulting in varied responses to insecticides between different populations. There is little evidence of resistance to plant allelochemicals; it is likely that their efficacy varies ...
Callaghan, Amanda +3 more
core +2 more sources
An Application of heterogenous catalysis reaction for synthesis of synthetic vanillin (3-hydroxy-2-methoxybenzaldehyde) from eugenol (4-allyl-2-methoxyphenol) of clove oil.
Henny Purwaningsih +3 more
doaj
Vector diseases treatment based on intermediate complexion using textile substrates [PDF]
The most efficient insect repellents are DEET (N, N-diethhyl-meta-toluamide) from synthetic origin and citronella essential oil from natural origin. However, there are other products that can also be used as insect repellents from synthetic origin, such ...
Lis Arias, Manuel José +2 more
core +1 more source
Kinetics of Complex Reaction of Eugenol Hydrogenation to 2-Methoxy-4-Propylphenol in Pd/Y Catalyst
Eugenol and isoeugenol hydrogenations using Pt, Pd, Ni as a single or combined metal, that was supported on X and Y zeolite have been carried out. The experiment result showed that in hydrogenation reaction using metal that was supported on zeolite ...
Asep Kadarohman
doaj
Phenotypic selection on floral scent: trade-off between attraction and deterrence? [PDF]
Flowers emit a large variety of floral signals that play a fundamental role in the communication of plants with their mutualists and antagonists. We investigated phenotypic selection on floral scent and floral display using the rewarding orchid species ...
Gomez, José +2 more
core
A structural characterization of the lignins from sugarcane (Saccharum spp. L) bagasse and straw [PDF]
The structure of the lignins of sugarcane bagasse and straw was investigated. The lignins were characterized both in situ and in isolated preparations (Milled-Wood Lignin, MWL, and Cellulolytic Lignin, CEL) by Py-GC/MS and 2D-NMR.
Colodette, Jorge Luiz +6 more
core
Quantitative Structure-Property Relationships for Predicting the Retention Indices of Fragrances on Stationary Phases of Different Polarity [PDF]
El objetivo de este trabajo fue el desarrollo de relaciones cuantitativas estructura–propiedad predictivas para el modelado de índices de retención (I) de fragancias, medidas en tres fases estacionarias de diferente polaridad: DB–225MS, HP5–MS y HP–1. Se
Duchowicz, Pablo Román +3 more
core +1 more source
En este trabajo se reporta, la síntesis del nuevo complejo de RhCl(ƞ4- 1,5-COD)(N-het)], donde los N-het son los derivados piridin-indolinona, (Z)-2-((piridin-4-il)metilen)-[1,3]dioxo[4,5-f]-indolin-3-ona (1) and (Z)-2- ((piridin-2-il)metilen)-[1,3]dioxo[
Fernando Cuenú Cabezas +2 more
doaj

