Passion fruit by-product was obtained from an industry of fruit pulp located in the city of Jundiai, São Paulo State, Brazil. The peels of passion fruit were dried in oven under air flow at 60 °C until constant weight. The dry peels were reduced to fine powder in a Bimby processor (model TM 31, Vorwerk®, Wuppertal, Germany). In order to make the mixture of the fiber powder into the reconstituted milk easier, the particle size was standardized to less than 42 μm, measured through sieves (Granutest, São Paulo, Brazil). The passion fruit peel powder (PFPP) was stored in clapped glass bottles and kept under refrigeration at 4 °C until use.