Water-based ultrasonic pretreatment enhances moso bamboo dimensional stability and mildew resistance.

ABSTRACT: Bamboo is naturally susceptible to mould and dimensional instability under humid conditions, which limits its durability in practical applications. This study aimed to determine whether water-based ultrasonic pretreatment could improve moso bamboo's (Phyllostachys edulis) dimensional stability and mildew resistance by altering microstructure and physicochemical properties. Results showed that ultrasonic pretreatment increased the mass loss rate by 0.2-0.8 %. It reduced the hot-water extractive content by 6-7 %, and decreased absolute-dry density by 0.02-0.06 g/cm³. The treatment caused pit membrane rupture and parenchyma wall thinning (the distribution range narrowed to approximately 5.5-12.5 μm at 20-60 min), and removing amorphous components enhanced cellulose crystallinity by

SUBMITTER: Qian J 

PROVIDER: S-EPMC12553005 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature