In our laboratory, a recombinant DNA
yeast (S. cerevisiue strain YKU 107) (15), kindly provided
by courtesy of Prof. Suteaki Shioya (Department of Biotechnology,
Graduate School of Engineering, Osaka University),
was used to hydrolyse gelatinised sago starch for the
production of fermentable sugar and other related enzymes
that include a-amylase (16).