产生酸的

Polygalacturonase has the same substrate specificity as pectate lyase. This enzyme is produced by Erwinia carotovora subspp. but not by Erwinia chyrsanthemi.

与果胶酸的底物相同。胡萝卜软腐欧氏菌的多个亚种产生此，但菊欧氏菌不产生。

By CEDI unit, acid and caustic regeneration is not necessary. the CEDI unit is able to produce stable-quality DI water and has no pollution to environment.

塞股，酸和碱再生的，是有必要的。塞股是能够产生稳定的高质量的去离子水，又有污染的环境。