Enzyme-assisted extraction of bioactive compounds from ginger (Zingiber officinale Roscoe)

► Enzyme pre-treatment of ginger resulted in enhanced extraction of oleoresin and 6-gingerol. ► Oleoresin yield was highest from the extraction of cellulase and α-amylase treated ginger with ethanol. ► 6-Gingerol content was maximal in the acetone extract of ginger treated with α-amylase and viscozyme. ► Cellulase treatment of ginger resulted in improved extraction of polyphenols in the resin.