Anatomical and Chemical Properties Analysis of Korean Broussonetia kazinoki Bast Fibers and Selection of Superior Individuals

This study aimed to analyze anatomical and chemical properties of Broussonetia kazinoki bast fibers collected from 43 regions in Korea to identify superior individuals for industrial applications. Anatomical properties (such as fiber length, width, and cell wall thickness) and chemical compositions (such as holocellulose and lignin contents) were measured. Principal component analysis and K-means clustering were used to classify samples into three clusters (flexibility, structural strength, and durability), with each cluster showing distinct characteristics. Superior individuals were selected based on holocellulose content and fiber length, with samples 6, 34, and 39 identified as optimal candidates. These individuals exhibited high holocellulose contents and diverse fiber lengths, making them suitable for applications in traditional Korean paper (Hanji), artificial leather, and mask filters. These results demonstrate the potential of B. kazinoki bast fibers as high-quality and versatile raw materials suitable for various industries.