Extraction of high activity dietary fiber from asparagus peel by enzyme

Asparagus peel as raw materials, adopting enzyme hydrolysis method, extract the high active dietary fibre. Result indicated that, the high active dietary fibre could be extracted with 0.54% lipase(100 U/mg), 0.80% amylase (25 U/mg) and saccharase (20 U/mg), 1.20% protease (100 U/mg). Quality of the dietary fibre was high, total content of dietary fibre was 83.08%, among them the soluble dietary febre accounted for 17.02%, the insoluble dietary fibre accounted for 66.06%. And the physiological activation was good, holding water capacity and swelling property were 886% and 4.5 mL/g respectively.