The type and total output of enzymes produced in China
amount to 30 and more than 380,000 tonnes in 2003, respectively
[10,11]. Fig. 1 shows the variation of enzyme output
in China in 1980–2003. By now, the enzyme products
of China are mainly sold domestically, taking up only less
than 15% in the whole production in China’s enzymes industry
and 5% share in world market. China’s rapid increasing
enzyme consumption markets have attracted some foreign companies
such as Novozymes and Genercor to set up research
and development centers or production bases in China. In contrast,
although there are more than 100 enzyme factories in
China, they are all medium and minor enterprises and mainly
produce several enzyme preparations including saccharifying
enzyme, alfa-amylase and protease, which possess around 95%
of China’s local enzyme output. Data on the consumption
of enzyme in China and the rest of world were shown in
Table 2. Although the enzyme consumption in textile industry
in China is very limited, its great application potential could be
expected because of China’s enormous scale of textile industry
[11].