Survey of enzyme activities in desaponified quinoa Chenopodium quinoa Willd.

Quinoa seed, previously desaponified, was assayed for activities of amylase, cellulase, polygalacturonase, invertase, phenolase, alkaline and acid phosphatases, catalase, peroxidase, Superoxide dismutase, protease and lipoxygenase. Polygalacturonase, invertase and lipoxygenase activities were not detected. All other enzymes were found to be active in quinoa seed extracts. Protease activity was found with haemoglobin as the substrate, but not with casein.