Effects of passion fruit peel flour as a dietary fibre resource on biscuit quality

Abstract The purpose of this investigation was to evaluate the effects of the addition of passion fruit peel flour (PFPF) from two different species to biscuits. Each PFPF was added to biscuit flour in different amounts (wheat flour replacement rate: 0%, 5%, 10%, and 15%). The colour and textural properties of the doughs and biscuits were evaluated. The physical characteristics, sensory characteristics and dietary fibre content of the biscuits were tested. Both types of PFPF show a higher fat absorption capacity (2.44 g/g (yellow) and 2.38 g/g (purple)). The results showed that the PFPF could significantly improve the texture of the prepared biscuits but showed an adverse effect on the colour. This study has shown that incorporation of PFPF (5%) can produce fibre-rich (TDF, 2.05% and 2.08%) biscuits with low water content (2.20% and 2.28%), excellent texture characteristics (Firmness, 13.18 N and 15.68 N) and good sensory quality.