Immobilization techniques improve volumetric hydrogen productivity of Caldicellulosiruptor species in a modified continuous stirred tank reactor.

ABSTRACT:

Background

Co-cultures and cell immobilization have been used for retaining biomass in a bioreactor, with the aim to improve the volumetric hydrogen productivity (Q_H2). Caldicellulosiruptor kronotskyensis is a strong cellulolytic species that possesses tāpirin proteins for attaching on lignocellulosic materials. C. owensensis has its reputation as a biofilm former. It was investigated whether continuous co-cultures of these two species with different types of carriers can improve the Q_H2.

Results

Q_H2 up to 30 ± 0.2 mmol L^-1 h^-1 was obtained during pure culture of C. kronotskyensis with combined acrylic fibres and chitosan. In addition, the yield of hydrogen was 2.95 ± 0.1 mol H₂ mol^-1 sugars at a di

SUBMITTER: Vongkampang T 

PROVIDER: S-EPMC9933333 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature