The present invention relates to a particulate composition comprising enteric-coated glucosinolate and beta-thioglucosidase particles. The selected level of access may have an associated security policy, wherein an authentication of the runtime input may be conducted based on the associated security policy. The creation of a reductive environment in the exhaust conduit upstream of the lean NOx trap may help to at least partially reactivate the lean NOx trap during engine shutoff.