Work

Utilizing Spent Yeast for Tannin Adsorption in Chestnut Shell Treatment Solutions

Year: 2025

Type: conference-paper

Abstract: This study evaluated the use of brewer’s spent yeast (BSY) as an adsorbent for tannins from a chestnut shell extract (CS tannin extract). This extract was derived from an alkaline treatment (5% NaOH (v/v)) to recover cellulosic material from chestnut shells and needed valorization. Various BSY treatments, including lyophilization, immobilization in calcium alginate beads, and alkaline and acid treatments, were tested to identify which had the best tannin adsorption capacity. The results highlight BSY’s potential as a system to valorize tannins from this treatment solution.

DOI: 10.3390/engproc2025087021

Authors: Elsa F. Vieira, Tomás Amaral, Ricardo Ferraz, Cristina Delerue-Matos

Institutions: Rede de Química e Tecnologia, Instituto Superior de Engenharia do Porto, Universidade Técnica do Porto, Universidade do Porto

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

OpenAlex ID: W4408626894

FWCI:

Cites: 17

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Related to: 10