Comprehensive utilization of Ganoderma lucidum residues in papermaking

Authors：Sheng, Jie; Wang, Wei; Ma, Qianli; Yang, Rendang^*

Source：Nordic Pulp and Paper Research Journal, 2020, 35(1): 43-49.

DOI：10.1515/npprj-2019-0045

• crosslinking
• Ganoderma lucidum residues
• papermaking resources
• refining
• sizing agent

This study aimed to fully utilize Ganoderma lucidum (called lingzhi in China, reishi in Japan) residues as raw materials and a sizing agent in the papermaking industry to alleviate their environmental pollution and the shortage of papermaking resources. The refined Ganoderma lucidum residues can be used to replace 30 % of the plant pulps. Moreover, the prepared papers had better physical properties than pure plant fiber papers. After polysaccharide extracting, the tear index and folding endurance increased by 26 % and 34 %, respectively. In addition, the Ganoderma lucidum residues-based resin as a sizing agent achieved a similar effect of alkyl ketene dimer (AKD). The Cobb index reduced from 84.1 gm(-2) to 72.5gm(-2).