since alpha- ( 1 -- > 6 ) branch points in amylopectin-type starches make the adjacent alpha- ( 1 -- > 4 ) linkages somewhat resistant to hydrolysis by alpha-amylase , other sections mounted on bare copper or gold grids were treated with pullulanase ( a bacterial alpha- [ 1 -- > 6 ] glucosidase ) prior to digestion with diastase .
C0020291
hydrolysis
C0002245
alpha-amylase