Passion fruit (Passiflora edulis), which is native to Brazil, is a popular tropical fruit throughout the world. The soft, orange pulp of this fruit is full of tiny albuminous seeds (up to 25% of the fresh pulp by weight), and all of these are edible. The passion fruit is usually used for juice production in Taiwan and elsewhere in Asia, and works best as a flavouring in many delicacies. In the juice industry, the passion fruit produces many thousand tons of seeds as agricultural byproducts during juice extraction. These seeds, containing large amounts of fibre and oil, are generally discarded after being crushed. In recent years, many studies have aimed to investigate dietary fibres from the byproducts and pomace of apple, citrus fruits, grape skin and seed, guava, mango and pineapple with a view to explore their potential applications and physiological
activities. However, information about the composition and functionality of dietary fibres prepared from the passion fruit pomace is scarce.