中性蛋白酶是由枯草芽孢杆菌(Bacillus subtilis)经液体深层发酵培养并提取精制而成，具有高效、清洁等优点，广泛应用于皮革加工、饲料、烘焙、调味品、啤酒、酱油等行业。

The neutral protease is produced from Bacillus subtilis by submerged fermentation and extraction. It has the advantages of high efficiency, cleanness and so on, widely used in leather processing, feed, baking, condiments, beer, soy sauce and other industries.