increased slightly and was less than 30 lg/kg (Fig. 2). The wines
produced by the mechanical process contained 11.0 (Fig. 2A) and
13.7 lg/kg (Fig. 2C) of EC respectively, which was lower than that
by the traditional process (31.6 lg/kg) (Fig. 2B). This may be due to
the difference in factors such as change in fermentation time and
temperature between the two conditions.
Both the traditional and the mechanical processes of yellow rice
wine production included the steps of rice soaking, steaming, starter
addition, pre-fermentation, post-fermentation, squeezing, caramel
color addition, frying, packaging, and storage. In the
mechanical process, steaming, addition of starter, fermentation,
squeezing, frying, and packaging were all mechanically operated.
The entire fermentation process was required approximately
25–40 days, which was lesser than that for the traditional process.