background:  the extracts of different parts of plants were found very effective against various pests. the aim of this research was to determine the insecticidal activity of fruit methanol extracts obtained from melia azedarach (meliaceae), phoenix theophrasti (arecaceae), styphnolobium japonicum (fabaceae) and pyracantha coccinea (rosaceae) against the larvae of culex pipiens (diptera: culici...

silver nano-particles have different biological applications due to their compatibility. chemical methodsusually result in remaining some amounts of toxic reactions on the nano-particles. for this reason, the useof plants as sustainable and accessible resources in preparation of compatible nano-particles has attracteda lot of attention in the recent years. this research investigated the green s...

The activity of phospholipase C in crude enzymatic preparation of Melia azadiracht seeds (Neem seeds) was studied by the use of lecithin as a substrate in aqueous medium. The enzyme activity was found optimum at pH 2.5 and temperature 35?C. The phospholipase C was found heat labile, being inactivated 88% within 10 minutes at 90°C

Climate change has impact on agricultural production, because it raises CO2 levels in the atmosphere, which leads to higher temperatures. Agroforestry systems aid climate adaptation and mitigation by providing relatively lower temperature beneath tree canopy. Therefore, diversified are needed be identified studied throughout world that can help annual crops better survival conditions with least...

      The fruit of Melia azedarach L. (Meliaceae) was extracted with hexane, and its fatty acids methyl ester was analyzed using GC/MS. Thirteen components representing 85.1% of the total extract were identified. The major components identified were methyl palmitate (18.8%), methyl linolenate (16.1%) and methyl linoleate (9.8%). The fruits’ extract had a LC50 of 5.5 ppm agai...

Penicillium janthinellum, isolado como um fungo endofítico dos frutos de Melia azedarach, foi cultivado por 20 dias em milho branco triturado e autoclavado, onde os policetídeos conhecidos citrinina, emodina, 1,6,8-triidróxi-3-hidroximetilantraquinona, e uma nova antraquinona modificada, denominada janthinona, foram produzidos e isolados por procedimentos cromatográficos clássicos e identificad...