Aquilia Sara, Bello Claudia, Pinna Michele, Bianchi Sabrina, Giurlani Walter, Ciardelli Francesco, Rosi Luca, Papini Anna Maria
Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, University of Florence, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy.
Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, I-50019 Sesto Fiorentino, Italy.
Polymers (Basel). 2025 Jun 22;17(13):1740. doi: 10.3390/polym17131740.
This study investigates the potential of rapeseed meal (RM), a protein-rich by-product of the rapeseed oil industry, as a raw material for the development of renewable materials. Due to the presence of antinutritional compounds, rapeseed meal is underutilized, primarily in low-value applications such as animal feed. In this work, rapeseed meal protein hydrolysates were enzymatically obtained and incorporated as plasticizers into rapeseed meal-based materials to improve their mechanical properties, water permeability, and thermal stability. Collagen hydrolysate has also been utilized as a low-cost additive to further enhance the material performance. The glycerol content was reduced to address permeability and migration issues associated with hydrophilic plasticizers. The results demonstrated that the incorporation of hydrolysates into rapeseed meal-based materials modulated thermal stability, water permeability, and mechanical properties-particularly elongation at break and flexibility. The latter increased proportionally with the hydrolysate content of RM-based materials. Additionally, aerobic biodegradation behavior, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) supported the material's favorable performance characteristics, highlighting the potential of rapeseed meal as a viable, biodegradable alternative for sustainable materials in industrial applications.
本研究探讨了菜籽油行业富含蛋白质的副产品菜籽粕（RM）作为可再生材料开发原料的潜力。由于存在抗营养化合物，菜籽粕未得到充分利用，主要用于动物饲料等低价值应用。在这项工作中，通过酶法获得菜籽粕蛋白水解物，并将其作为增塑剂掺入以菜籽粕为基础的材料中，以改善其机械性能、透水性和热稳定性。胶原蛋白水解物也被用作低成本添加剂，以进一步提高材料性能。降低甘油含量以解决与亲水性增塑剂相关的渗透性和迁移问题。结果表明，将水解物掺入以菜籽粕为基础的材料中可调节热稳定性、透水性和机械性能，特别是断裂伸长率和柔韧性。后者与基于RM的材料的水解物含量成比例增加。此外，好氧生物降解行为、热重分析（TGA）和差示扫描量热法（DSC）支持了该材料良好的性能特征，突出了菜籽粕作为工业应用中可持续材料的可行、可生物降解替代品的潜力。
