2.1. Orange fiber
Orange (Citrus sinensis) juice extraction waste was provided by
the “Pure Juice” company, located in Porto Alegre (RS/Brazil). These
waste components consisted of the orange peel, pulp and seeds
that had been manually separated into two groups: peel, pulp
(flavedo and albedo) and seeds (F1); and peel (F2). The rawmaterial
was collected in a single week and stored at 18 C for further use