Apple, apricot, cherry and plum meal were prepared from the seeds or kernels of mature garden fruits. The preparations as well as almond meal were used as the source of (R)- oxynitrilase for the synthesis of aliphatic and aromatic cyanohydrins in diisopropyl ether in the presence of 0.1 M tartrate buffer [2%(v/v), pH 5.4]. Apple meal as the most favourable of the enzyme preparations accepts also sterically hindered aldehydes (eg, pivalaldehyde) ...
