PATTERNS OF MODIFICATION IN MALTING BARLEY

摘要: The modified regions of the starch endosperms malted grains were fragile and, in thin sections, cell walls these did not stain readily with Congo Red or Trypan Blue, although scanning electron microscopy demonstrated some cell-wall material remained. Initially enzymes causing modification came from scutellum, but later more aleurone layer. Patterns different differed significantly, usually resembled those recorded previously6 except that often had advanced further by nucellar sheaf cells. In treated gibberellic acid faster, particularly beneath layer, after two days germination. In tumbled commercially abraded grains, acid, was even rapid, than 99% same patterns occurred. Two-way a rare event. Rapid, general sub-aleurone occurred cut at apex and dosed acid. Decorticated exceptionally quickly when massive subaleurone occurred. The tissues resisted fluoresced strongly ultra-violet light, contrast to starchy endosperm.