Resumo O “Nanicão Corupá” (Musa acuminata) é proveniente do sul do Brasil. Em função do clima tropical na região a banana apresenta características diferenciadas incluindo o sabor mais doce. Essa diferença resultou em um Reconhecimento de Indicação Geográfica e Denominação de Origem, reconhecido pelo Instituto Nacional de Propriedade Industrial (INPI) no Brasil. Considerando que o Nanicão Corupá possui importantes peculiaridades e que não existem estudos que avaliaram este cultivar, o objetivo do presente estudo foi investigar a composição fenólica qualitativa e quantitativa das partes aéreas da banana (flores, folhas, frutos e caule) de Corupá por HPLC-ESI-MS/MS em comparação com 46 padrões de compostos fenólicos. As partes aéreas de Nanicão Corupá foram coletados e macerados em metanol, separadamente. Os extratos obtidos foram particionados com solventes de diferentes polaridades (diclorometano e acetato de etila). Os resultados demonstraram que um total de 11 compostos fenólicos foram identificados nas amostras analisadas. Os compostos majoritários foram identificados na fração de acetato de etila das flores de banana (BFEF): rutina (36,06 ± 0,23) e isoquercetina (28,83 ± 5). Os compostos Isoquercetina, Naringerina e Micricitrina foram identificados pela primeira vez no gênero Musa. Este é o primeiro estudo que identificou compostos fenólicos em Nanicão Corupá.

Abstract “Nanicão Corupá” (Musa acuminata) comes from Southern Brazil. The tropical climate in the region provides unique characteristics, including a sweeter flavor. This difference resulted in a Geographical Indication Recognition and Designation of Origin, recognized by the National Institute of Industrial Property (INPI) in Brazil. Considering that “Nanicão Corupá” has some peculiarities related to the climate and there are no studies evaluating this banana cultivars, the purpose of the present study was to investigate the qualitative and quantitative phenolic composition of the aerial parts of “Nanicão Corupá” by HPLC-ESI-MS/MS in comparison to 46 commercial standards of phenolic compounds. Aerial parts (flower, leaves, fruit and stem) of “Nanicão Corupá” were collected and macerated in methanolic extracts, which were partitioned with solvents of different polarities (dichloromethane and ethyl acetate). The HPLC-ESI-MS/MS analysis was performed using the sample pre-treatment, chromatographic and mass spectrometer parameters. Results demonstrated that a total of 11 phenolic compounds were identified in the analyzed samples. The majority of compounds was identified in the ethyl acetate fraction (BFEF) of banana flowers: rutin (36.06 ± 0.23) and isoquercetin (28.83 ± 5). The compounds isoquercetin, naringerin and myricitrin were identified for the first time in the Musa genus.

BACKGROUND Leishmaniases are diseases transmitted by some species of sand flies and are widely distributed throughout the tropical regions of the planet. Despite the low mobility of these vectors, the geographical distributions of some species are quite extensive, which hinders control and surveillance measures in endemic areas. OBJECTIVES The present study investigated the flying capacity of sand flies. METHODS Four Hoover Penido (HP)-type light traps were positioned in the centre of the Velhas’ River, about 80 metres equidistant from each other. We also realised capture/release/recapture attempts to assess possible capacity of phlebotomine fly uninterrupted up to 150 metres. Captured sand flies from one side of the river were marked using fluorescent powder (Luminous Paint kit, Bioquip®) and released on the other side, approximately 150 m distant. Recapture attempts were made on river’s bank up to 30 days post-release. FINDINGS Six sand flies of the species Nyssomyia neivai (n = 4), Ny. intermedia (n = 1) and Evandromyia lenti (n = 1) were captured in the centre of the river. There were no recaptures of the 1,450 marked-and-released sand flies. MAIN CONCLUSIONS The results obtained disagree with data found in the literature regarding the flight capacity of sand fly vectors of leishmaniasis.