Effect of aeration on xylanase production by Bacillus sp. I-1018

Phuong Lan Pham (1) , Pierre Strehaiano (2) , Patricia Taillandier (2)

1 Ecole Nationale Supérieure de Chimie de Toulouse
2 LGC - Laboratoire de Génie Chimique

The effect of aeration on xylanase production by Bacillus sp. I-1018 grown in batch cultures on xylan was investigated. Efficiency of aeration and agitation was evaluated through the Kla coefficient, and the consumption of oxygen by bacteria was evaluated by measuring batchwise the dissolved oxygen pressure (pO2). During the exponential growth phase pO2 was not zero only for the highest value of Kla. Growth and enzyme production were faster when Kla was increased (productivity in xylanase was up more than 50%).

Mots clés: Xylanase production; Bacillus sp. I-1018; Batch culture

Domaines: Génie chimique; Génie des procédés

Phuong Lan Pham, Pierre Strehaiano, Patricia Taillandier. Effect of aeration on xylanase production by Bacillus sp. I-1018. Bioprocess Engineering, 1997, 18 (1), pp.41-43. ⟨10.1007/PL00008973⟩. ⟨hal-02143244⟩