Peptides containing tryptophan

A composition comprising at least two different water-soluble, tryptophan-containing peptides peptides and wherein the Trp/LNAA ratio of the composition is at least 0.15, preferably between 0.15 and 1.8.

A composition comprising at least two different peptides selected from di- or tripeptides, whereby two peptides selected from di- or tripeptides are each present in an amount of at least 5 mol % of the total amount of di- and tripeptides, and in which more than 30 mol % of the total tryptophan is present as peptide bound tryptophan, and preferably more than 40 mol %, more preferably more than 50 mol %, even more preferably more than 60 mol %, still more preferably more than 70 mol % and most preferably more than 80 mol % of the peptide-bound tryptophan is present in the form of a di- or a tripeptide, preferably the composition has a Trp/LNAA ratio of more than 0.15, preferably between 0.15 and 1.8.

A composition comprising the water soluble fraction of a lysozyme hydrolysate.

Use of AW, SW or GNW for improving mood, cognition, appetite, alertness, vigilance, sleep onset and quality, anxiolytic effects, depression, affective reaction control or sexual behavior, or for use as ingredient in the preparation of a food, feed, dietary supplement or neutraceutical composition for mood, appetite, alertness, sleep onset and quality, anxiolytic effects, depression, affective reaction control or sexual behavior.

Use of lysozyme to produce a composition comprising at least two different water-soluble, tryptophan-containing peptides peptides, preferably the peptides AW and GNW, and having a Trp/LNAA ratio of more than 0.15