Culex quinquefasciatus (Say, 1823), known as the domestic mosquito, is a common and abundant species throughout the world, and a cosmopolitan species. The adults of this mosquito are important in terms of public and animal health since they display adaptability to different hosts. In humans, they are responsible for the transmission of various diseases. One manner of control of this vector is the use of insecti...
Made available in DSpace on 2015-03-18T15:55:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-01-01Bitstream added on 2015-03-18T16:28:42Z : No. of bitstreams: 1 WOS000323439900001.epub: 917572 bytes, checksum: 521419a5802fd2da8cdeb860e0f34274 (MD5)Bitstream added on 2015-03-18T16:28:42Z : No. of bitstreams: 2 WOS000323439900001.epub: 917572 bytes, checksum: 521419a5802fd2da8cdeb860e0f34274 (MD5) WOS00...
Brine shrimp lethality test as a biological model for the preliminary selection of pediculicidal components from a natural source. In order to achieve a good correlation between pediculicidal activity and brine shrimp lethality (BSL) test, several pediculicidal substances and active essential oils were tested in BSL test, with the purpose to use the latter as convenient preliminary protocol for pediculicidal ac...
A different methodology was used to isolate and purify oxoaporphine alkaloids, as they are difficult to separate by the usual workup when in mixture. Alkaloid extracts from Annonaceae species were obtained by base/acid extraction. The extracts were concentrated and submitted to partition in solutions of acids of different pKa values, followed by separation by preparative TLC using 1 mm thick silica gel impregna...