Utilisation of orange peel in the production of α-terpineol by Penicillium digitatum (NRRL 1202)

► Bioconversion of d-limonene of orange peel oil was carried out using Penicillium digitatum. ► The highest bioconversion into α-terpineol was obtained by using MYB medium at 27 °C. ► α-Terpineol % was 67.7 using MYB medium after 31 h from the second substrate addition.