Upcycling fruit pomaces (orange, apple, and grape-wine): the impact of particle size on phenolic compounds’ bioaccessibility.

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This work aimed to analyse the effect of particle size on bioactive compounds of different by-products. Orange, apple, and grape-wine by-products obtained from industrial production were dried and ground at two sizes: 1 mm and 0.5 mm. Pomaces were analysed in composition (protein, fat, carbohydrates, moisture, and ash contents) and bioactive compounds (total phenol content by Folin- Ciocalteu method and antioxidant capacity by FRAP assay) and submitted to an