Effects of industrial cashew nut processing on anacardic acid content and allergen recognition by IgE.

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Potencial estabilizante de éster de sacarose em suco de graviola (Annona muricata, L.)

Esteres de sacarose são compostos com propriedades tensoativas (biosurfactantes), isto é, capazes de reduzir a tensão superficial e promover a emulsificação de líquidos imiscíveis. Como todas as emulsões, o suco de graviola não é fisicamente estável e é propenso a uma separação de fases. O objetivo do presente trabalho foi avaliar a aplicação do éster de sacarose na estabilização de emulsões de suco de graviola. O éster de sacarose foi adicionado às amostras de suco de graviola nas proporções de 1:10, 1:50 e 1:100 (éster de sacarose:suco de graviola) e caracterizado de acordo com a tensão superficial, índice de emulsificação, potencial zeta e análise microscópica. A análise microscópica apresentou maior aglomerado de glóbulos na amostra B (1:10, éster de sacarose:suco de graviola, p/v). Os resultados das demais análises indicaram que a amostra C (1:50, éster de sacarose:suco de graviola, p/v) apresentou a melhor estabilidade, com uma tensão superficial de 35 N/m e um índice de emulsificação de 50.4 % durante 24 horas de experimento

Ultrastructural and biochemical changes induced by salt stress in jatropha curcas seeds during germination and seedling development

Jatropha curcas L. is a multipurpose species of the Euphorbiaceae family that is widespread in arid and semiarid regions. This study investigated the ultrastructural and biochemical changes induced by salt stress during J. curcas seed germination and seedling development. Salt stress negatively affected seed germination and increased Na+ and Cl– contents in endosperms and embryo-axis. Lipids represented the most abundant reserves (64% of the quiescent seed dry mass), and their levels were strongly decreased at 8 days after imbibition (DAI) under salinity stress. Proteins were the second most important reserve (21.3%), and their levels were also reduced under salt stress conditions. Starch showed a transient increase at 5 DAI under control conditions, which was correlated with intense lipid mobilisation during this period. Non-reducing sugars and free amino acids were increased in control seeds compared with quiescent seeds, whereas under the salt-stress conditions, minimal changes were observed. In addition, cytochemical and ultrastructural analyses confirmed greater alterations in the cellular reserves of seeds that had been germinated under NaCl stress conditions. Salt stress promoted delays in protein and lipid mobilisation and induced ultrastructural changes in salt-stressed endosperm cells, consistent with delayed protein and oil body degradation4286587

Influence of low molecular weight compounds associated to cashew (Anacardium occidentale L.) fiber on lipid metabolism, glycemia and insulinemia of normal mice.

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