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.

与果胶酸裂底物相同。胡萝卜软腐欧氏菌多个亚种产生此，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，是有必要。塞股是能够产生稳定高质量去离子水，又有污染环境。