Myrosinase activity during the fermentation
The present study shows that the remaining myrosinase activity
in the oven and MW at 180 W treated samples was almost
completely lost after one day of fermentation (Table 1). Further
fermentation led to complete loss of myrosinase activity
in all samples. Myrosinase activity was also not detected in
the fermentation medium (data not shown). In accordance,
Kim and Rhee [12] reported a decrease of myrosinase activity
from the radish tissue after 3 days of fermentation until
less than 3 %. They explained this by reduced stability due
Table 1 Myrosinase activity (units/g DM) of withered and fermented
Indian mustard leaves (n = 3)