Raw material A unique lot of 10 kg of blueberry (varieties Clímax, Blue-gen, and Florida) wastes was purchased to prevent variation son lots during the extractions. The material was acquired from the industry “Orgânicos Pérolas da Terra”, located in the state of Rio Grande do Sul, southern Brazil, and was composed of blue-berry peel, seeds, and pulp. Part of the blueberry waste was submitted to freeze–drying in a bench toplyophilizer at −42◦C(L101-LioTop/Liobrás) with time ranging from 48 to 72 h. An other part was dried in an oven (Fanem, 320), for 4–5 days at 40◦C. A third part of the raw material was kept in its natural form, without any drying. The dried samples were packed in plastic container sand stored at −18◦C.