alpha-maltotriose + beta-maltose => alpha-maltotetraose + beta-D-glucose
alpha-maltotriose + beta-maltose => alpha-maltotetraose + beta-d-glucose
alpha-maltotriose + beta-maltose => alpha-maltotetraose + beta-D-glucose
alpha-maltotriose + beta-maltose => alpha-maltotetraose + beta-d-glucose