Process options for the recovery of a pentosan-enriched fraction from wheat-based bioethanol thin stillage.

ABSTRACT:

Aim

Stillage, the main residue from cereal-based bioethanol production, offers a great potential for the recovery of pentosan-type carbohydrates. Therefore, potential process options for the recovery of pentosans from bioethanol thin stillage are investigated and their basic feasibility is demonstrated on a laboratory scale.

Findings

The main result of this work is the development of a three-stage process for pentosan recovery, including solid-liquid separation, pentosan solubilisation and purification. The pentosan content of the thin stillage used here was determined to be about 14% related to dry matter (DM). By means of solid-liquid separation, these pentosans accumulate in the liquid phase (up to 80%), while the remainder (about 20%) is found in the solid phase. Solubil

SUBMITTER: Zimmermann A 

PROVIDER: S-EPMC10991448 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature