Deracemisation of β-hydroxy esters using immobilised whole cells of Candida parapsilosis ATCC 7330: substrate specificity and mechanistic investigation

R=C6H5, p-MeC6H4, o-MeC6H4, p-OMeC6H4, o-OMeC6H4, p-EtC6H4, p-ClC6H4, m-BrC6H4, m-NO2C6H4, p-NO2C6H4, 1-Naphthyl, 9-Anthranyl and Me; n=0, 1 and 2; R′=Me, Et, n-Pr, n-Bu, -CH2C6H5 and -CH2CHCH-C6H5.