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The nutritional value and protein quality of the carpophores of boletus aereus boletus edulis boletus pinicola and boletus reticulatus



The nutritional value and protein quality of the carpophores of boletus aereus boletus edulis boletus pinicola and boletus reticulatus



Annali della Facolta di Agraria Universita degli Studi di Perugia 42: 873-898



The purpose of this study was to analyze the carpophores of B. aereus, B. edulis, B. pinicola and B. reticulatus collected at the same stage of maturity, to determine the protein, amino acid, total lipid, carbohydrates and ash contents. The following minerals were also determined: P, S, K, Na, Ca, Mg, Fe and Cu. Multi-enzymatic digestion in vitro was also done to determine the protein quality. The protein percentage, amino acid index and quantity of minerals were always greater in the cap than in the stem. Lysine was present in all four species with particularly large amounts in B. pinicola, with values much higher than the reference protein.

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