The evolution of proteolysis was compared in cheeses made either with
free or liposome encapsulated commercial protease and in cheese supple
mented with encapsulated enzymatic extract from Lactobacillus helvetic
us. In cheese with added free neutrase, a very rapid proteolysis occur
red combined with a strong bitterness defect, which was correlated wit
h high and medium molecular weight peptide accumulation measured by ge
l permeation chromatography. In cheese with added L helveticus enzymat
ic extracts a lower primary proteolysis resulted except for control ch
eese, but the finished flavour appeared earlier than in the other enzy
me supplemented cheeses.