Abstract:The chemical composition of the seed shell of the apricot (Prunus armeniaca) were investigated. Acid and neutral detergent fibres (ADF and NDF) and their fractions-hemicellulose, cellulose and lignin-were determined. The NDF content was about 920 g kg-' DM. The concentrations of oils, soluble sugars, pectins, polyphenolic compounds, proteins and mineral elements were also determined. None of these fractions was present at levels higher than 25 g kg-' DM. Essential amino acids comprised 3 8 4 1 % of the total amino acids. Potassium (244 g kg-l) was the most abundant element, followed by calcium (1.15 g kg-'). Some possible applications for apricot seed shell are considered.