Plastics are desirable as packaging materials due to their strong, flexible, and low-cost properties. However, their lack of biodegradability is environmentally detrimental. To this end, plant-based natural fiber is a viable option for creating plastic replacing and biodegradable materials. This study aimed to extract lignocellulosic fiber from avocado peel and make films. Acid hydrolysis and alkali treatment were used to obtain the fiber from avocado peel and ZnCl₂ to solubilize it and make films by crosslinking the polymer chains through Ca²⁺ ions. The results reveal that increasing the Ca²⁺ ions amount significantly reduces moisture content, moisture absorption, water vapor permeability, water solubility, transparency, and elongation at the break of films but improves tensile strength. The films biodegrade within 30 days at the soil moisture content of 22% with a half-life of 3.19–4.63 days. Overall, extract from avocado peel fiber could aid in designing and developing plastic replacement and biodegradable packaging films.

塑料由于其坚固、柔韧和低成本的特性而成为理想的包装材料。然而，它们缺乏生物降解性对环境有害。为此，以植物为基础的天然纤维是制造塑料替代材料和可生物降解材料的可行选择。本研究旨在从牛油果皮中提取木质纤维素纤维并制成薄膜。将牛油果皮纤维与ZnCl ₂进行酸水解和碱处理，通过Ca ²⁺离子交联高分子链，使其增溶成膜。结果表明，增加 Ca ²⁺离子量显着降低了薄膜的水分含量、吸湿性、水蒸气渗透性、水溶性、透明度和断裂伸长率，但提高了拉伸强度。在土壤水分含量为 22% 的情况下，薄膜可在 30 天内生物降解，半衰期为 3.19–4.63 天。总的来说，鳄梨皮纤维的提取物有助于设计和开发塑料替代品和可生物降解的包装薄膜。