Alterações físico-químicas da água de coco durante o desenvolvimento do fruto.

O presente trabalho teve como objetivo estudar as alterações físico-químicas que ocorrem na água do fruto do coqueiro anão, ao longo do seu desenvolvimento, de modo a possibilitar a determinação do estádio de desenvolvimento mais adequado para a colheita de frutos que são destinados ao fornecimento de água para consumo ao natural ou para o envasamento industrial

Antibiotic Resistance among <i>Escherichia coli</i>: Isolates and Novel Approaches to the Control of <i>E. coli</i> Infections

Bacteria are the microorganisms that most frequently cause infectious diseases in humans. The synthesis of silver nanoparticles (AgNPs) has attracted interest due to the new and different physical and chemical characteristics with applications in new fields. AgNPs, alone or supported on ceramic, are used as antimicrobial fillers in textiles and polymers for food-packaging and biomedical applications, for antimicrobial paints, and potentially for drug delivery. The evaluation of mesoporous nanostructures or nanocomposites as FDU-12/lignin/silver was effective in inhibiting Staphylococcus aureus, E. coli, Enterococcus faecalis, and Candida albicans. The best results were achieved against the inhibition of E. coli and with the structures FDU-12/silver. In plates with FDU-12/lignin/silver, FDU-12, FDU-12/lignin, and the positive control, it was enumerated at 0, 6, 14, and 27 colonies, respectively. While the development of resistance to a new antibiotic is expected, the time course and degree of resistance are uncertain and depend on various factors. The application of AgNPs as nanocomposites can alter the expression of bacterial proteins and could be used for inactivation. This review explores such aspects and a number of factors arising like the use of nanostructures against E. coli, from the knowledge acquired

Expressão da fertilidade de gemas da Superior Seedless no Município de Petrolina (PE).

Objetivou-se com o presente trabalho avaliar a expressão da fertilidade de gemas da ?Superior Seedless? no município de Petrolina (PE), através da relação fertilidade de gemas real/potencial. A fertilidade potencial foi avaliada antes da poda pela análise microscópica das gemas e a fertilidade real pela relação: número de cacho e mitido por gema/número total de gema brotada por planta. Verificou-se que a taxa média de expressão da fertilidade real/potencial, para as condições locais de estudo foi de 59,52%

Analisador granulométrico automatizado aplicado na caracterização de pós de vidro processados por moagem.

O objetivo deste trabalho é a validação do analisador granulométrico na caracterização da evolução, em função do tempo, do tamanho de partículas de vidro obtidas por moagem.bitstream/CNPDIA/9713/1/CT27_98.pd

Utilização de biofilmes na redução de perda de massa de goiabas 'Paluma'

Observou- se que os frutos revestidos pelos biofilmes tiveram reduzidas, de maneira significativa, as perdas de massa e de firmeza da polpa

Biology of Diadiplosis multifila (Diptera: Cecidomyiidae)in Planococcus citri under constant temperatures.

Diadiplosis multifila was recently discovered feeding on Planococcus citri eggs in vineyards in the semi-arid northeast region of Brazil. The objective of the present paper was to study the biology of D. multifila in P. citri under constant temperatures of 22, 25, 28, and 31 °C. We evaluated its embryonic stage, egg viability, development period, survival of larva and pupa, longevity, average number of eggs, and sex ratio. D. multifila completed its life cycle in all temperatures except for 31 °C. The length of the embryonic period ranged from 4 to 7 days. The larval stage was longer at a temperature of 22 °C (8.6 days) and shorter at 28 °C (6.4). The pupal stage exhibited durations of 12.9, 10.4, and 8.2 days for temperatures of 22, 25, and 28 °C, respectively. The average viability in the larval stage was 97% and 83% in the pupal stage. The total life cycle took 16.7 (28 °C), 20 (25 °C), and 27 (22 °C) days to complete. The adults lived for approximately 2 days and the females produced on average 34, 25, and 19 eggs at temperatures of 22, 25, and 28 °C, respectively. The sex ratio varied from 0.46 to 0.54