Development of sustainable Re-Tanning Agents from Fungal Degradation of Lignosulfonates

Konferenzbeitrag

Lignosulfonates are abundantly available by-products of the paper industry. In the vast majority of applications on leather lignosulfonates are physically blended with other chemistries to augment filling properties of the resulting products. We targeted to decrease the molecular weight of lignosulfonates using fungi to achieve increased application possibilities and to improve tanning properties. We screened various basidiomycotes for their capability to modify the molecular weight of calcium lignosulfonates and identified five species that actually polymerized the chosen lignosulfonate further. Only Irpex consors was found to depolymerize calcium lignosulfonate in surface and later in liquid cultures in our hands. We achieved a six fold reduction of the molecular weight determined by size exclusion chromatography.

References and Relationships

• Related object and literature: urn:nbn:de:bsz:14-qucosa2-340872 ; qucosa:34087

Classification and Topics

• Subject: Ingenieurwissenschaften

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Ammenn, Jochen
• Event: Herstellung
• (who): International Union of Leather Technologists and Chemists Societies
• Event: Veröffentlichung
• (who): Verein für Gerberei-Chemie und -Technik e. V. ; Forschungsinstitut für Leder und Kunststoffbahnen (FILK) gGmbH

Further information

• URN: urn:nbn:de:bsz:14-qucosa2-341302
• Last update: 14.03.2025, 8:15 AM CET