Influence of Pretreatment on Microfiltration of Caja-Manga (Spondias-dulcis)

In this study, was evaluated the use of pretreatment on microfiltration (MF) of caja-manga pulp. Fruits were selected, cleaned and ground with water at a ratio of 1: 3 (w/w). First, through an experimental design was optimized the extraction to obtain a higher concentration of phenolic (CF). For MF flat membrane was used cellulose ester of 0.8 mu m (Millipore) batch system with the filtration area of 0.00636 m(2) with and without applying the pretreatment step (centrifugation), it was evaluated total phenolic by Folin-Ciocalteu, total solids, brix, color and turbidity. Data were analyzed by ANOVA and Tukey test (p < 0.05). For optimizing, the temperature it was significant that the best extraction occurred in time of 30 min and temperature 75 degrees C. The pretreatment did not influence for the turbidity, color, solid, phenolic compounds and Brix values of the obtained permeated. Analyzing the permeate flow it can be stated that the pretreatment used in this case, namely the centrifugation was efficient to minimize membrane fouling. Thus, it is concluded that the microfiltration process prior to centrifugation has the potential to be applied in the processing of caja-manga pulp.