Penicillium expansum PF898, which is a mutant strain by many generation mutagenesis and breeding from the original strain isolated from soil in China, produced an alkaline lipase at a high level.

• 扩展青霉PF898可产生一种具有重要工业生产价值的碱性脂肪酶，该产生菌是从我国土壤中分离并经多代的诱变育种选育的脂肪酶高产菌株。