Authors
Yuan Liu, Chen-Xi Li, Jia-Xuan Long, Ming-Fei Li, Jing Bian, Feng Peng
Published in
Carbohydrate polymers. Volume 391. Pages 125748. Nov 01, 2026. Epub Aug 10, 2026.
Abstract
A combined holocellulose-nanofiber (HNF) incorporation and citric-acid (CA) treatment approach was investigated using bamboo-derived HNF and CA as additives. HNF, with a mean diameter of 19.00 nm and a crystallinity of 55.8%, was prepared by TEMPO oxidation and high-pressure homogenization. Composite films were fabricated by solution casting followed by hot pressing. Among the formulations examined, PCH-2 containing 10 wt% CA and 4 wt% HNF exhibited a tensile strength of 78.1 MPa and a Young's modulus of 2515 MPa, representing increases of 110.5% and 207.1%, respectively, relative to the PVA control, while retaining an elongation at break of 122.2% (51.4% lower than that of the PVA control). Water-vapor and oxygen transmission rates decreased by 61.9% and 58.8%, respectively; water solubility decreased from 90.7% to 42.2%, and the water contact angle increased to 85.02°. Under the non-standardized soil-burial conditions, the PVA-based specimens were no longer visually recoverable within 60 days, whereas the PE and PVC controls remained visually intact. In an exploratory, unreplicated strawberry-storage observation, PCH-2 reduced 5-day weight loss by 74.7% relative to the uncovered control, whereas PE produced the lowest weight loss. These results demonstrate improved mechanical and barrier performance under the tested laboratory conditions.
PMID:
42785891
Bibliographic data and abstract were imported from PubMed on 25 Sep 2026.
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