FLAVONOIDES E ASMA: UM ESTUDO PROSPECTIVO

A prospecção tecnológica é uma ferramenta que facilita os processos de tomada de decisão, melhorando a gestão da inovação (QUINTELLA et al., 2011), tendo em vista que a maioria das informações tecnológicas estão descritas em bases patentárias (TOMIOKA et al., 2010)

ESTUDO DA COMPOSIÇÃO QUÍMICA DE CAULES DE Lippia thymoides

O uso de plantas medicinais em favor da descoberta de novos medicamentos tem crescido ao longo dos anos, devido ao avanço tecnológico cientifico que envolve estudos químicos e farmacológicos, reduzindo os obstáculos para a descoberta de novos fármacos e de possíveis fontes de novos protótipos (SIMÕES et al., 2017)

Insecticidal activity of essential oils of species from the genus Lippia against Nasutitermes corniger (Motschulsky) (Isoptera: Termitidae)

Lippia is one of the main genera in the family Verbenaceae, with 200 species described. Despite its richness in bioactive molecules, with several scientifically proven applications, there is little information on the insecticidal potential of its species. This study aimed to assess the insecticidal potential of essential oils from the species Lippia thymoides (Martius & Schauer); Lippia lasiocalycina (Schauer) and Lippia insignis (Moldenk) against Nasutitermes corniger (Motschulsky) (Isoptera-Termitidae). Insecticidal activity was evaluated by exposure to a contaminated surface, whereby plastic pots were lined with filter paper and imbibed in 1.5 ml of solution containing essential oils (10 µl/ml), with 10 N. corniger specimens per pot. The mortality count was performed at 24 and 48 h. The LC50 was determined by diluting the essential oils to concentrations of 0, 0.625, 1.25, 2.5, 5.0 and 10 µl/ml, which were chemically analyzed by GC-FID and GC-MS. The data indicated high toxicity for the essential oils for the Lippia species tested. The lowest LC50 (0.46 µl/ml) was recorded for L. lasiocalycina. The most common constituents were β-myrcene and (E)-ocimenone in essential oil of L. lasiocalycina, β-myrcene and limonene for L. insignis, and (E)-caryophyllene and caryophyllene oxide for L. thymoides. The results demonstrate the viability of developing biopesticides for N. corniger control

Tetracloreto de titanio suportado em dioxido de titanio quimicamente reduzido como catalisador de Ziegler-Natta

Orientador: Ulf Friedrich SchuchardtDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de QuimicaMestrad