Kinetics of the de novo synthesis of isoamyl acetate (blue squares), phenyl ethyl acetate (red stars), ethyl hexanoate (green circles), ethyl octanoate (orange dashes), ethyl decanoate (purple diamonds) and ethyl dodecanoate (dark blue triangles) by solid-state fermentation of sterile orange peel (OP) using S. cerevisiae. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)