Extracción, cuantificación, caracterización fisioquímica y funcional de fibra dietaria obtanida a partir de residuos de maracuyá (Passiflora edulis f. flavicarpa Deg)

摘要

The dietary fiber extracted from the peels of passion fruit (Passiflora edulis f. flavicarpa Deg) was quantified and its physicochemical and functional properties characterized. A completely randomized 22 factorial design was performed, corresponding to a combination of two temperatures (60 ˚C and 70 ˚C) and two drying times (12h00min and 12h45min). Drying at 60 ˚C for 12h45min provided the best results as regards physicochemical and functional characteristics: total dietary fiber (TDF) 65.40 ± 3.77 g/100g, soluble dietary fiber (SDF) 37.84 ± 3.80 g/100g, insoluble dietary fiber (IDF) 27.55 ± 2.96 g/100g, moisture content 5.91 ± 0.34 g/100g, pH 4.43 ± 0.04, swelling 18.29 ± 0.04, solubility 17.51 ± 0.61%, water binding capacity (WBC) 13.91 ± 0.15 g water retained/g fiber, water holding capacity (WHC) 14.91 ± 0.15 g hydrated fiber/g fiber and oil binding capacity (OBC) 2.77 ± 0.06 g oil/g fiber. The extracted dietary fiber is shown to possess physicochemical and functional properties potentially beneficial for the consumer.