Natural Composites Research Group Lab, Department of Materials and Production Engineering, The Sirindhorn International Thai-German School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok 10800, Thailand.
Natural Composites Research Group Lab, Department of Materials and Production Engineering, The Sirindhorn International Thai-German School of Engineering (TGGS), King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok 10800, Thailand.
Int J Biol Macromol. 2024 Jan;254(Pt 1):127687. doi: 10.1016/j.ijbiomac.2023.127687. Epub 2023 Oct 26.
The exploration of potential bio-fillers for bio-film application is a promising approach to ensure biodegradable, eco-friendly, good-quality materials with high-performance applications. This is a comprehensive study executed to establish the utility of an agro-waste Tamarindus indica seeds for microcrystalline cellulose production and to assess its feasibility for biofilm fabrication. The extraction was carried out through consecutive chemical-mediated alkalization, acid hydrolysis and bleaching. The isolated microcrystalline cellulose from Tamarindus indica seeds (TSMCC) was characterized through chemical, thermal and morphological characterization to validate the cellulose contribution, thermal resistance, and compatibility of the material. The physical parameters as density and yield percentage were assessed to evaluate its light-weight utility and economic productivity. These examinations revealed that TSMCC has good specific properties such as high cellulose content (90.57 %), average density (1.561 g/cm), feasible average roughness (12.161 nm), desired particle size (60.40 ± 21.10 μm), good crystallinity (CI-77.6 %) and thermal stability (up to 230 °C); which are worthwhile to consider TSMCC for bio-film formulation. Subsequently, bio-films were formulated by reinforcing TSMCC in polylactic acid (PLA) matrix and the mechanical properties of the bio-films were then studied to establish the efficacy of TSMCC. It is revealed that the properties of pure PLA film increased after being incorporated with TSMCC, where 5 %TSMCC addition showed greater impact on crystalline index (26.16 % to 39.62 %), thermal stability (333c to 389 °C), tensile strength (36.11 ± 2.90 MPa to 40.22 ± 3.22 MPa) and modulus (2.62 ± 0.55GPa to 4.15 ± 0.53GPa). In light of all promising features, 5 % TSMCC is recommended as a potential filler reinforcement for the groundwork of good quality bio-films for active packaging applications in future.
探索潜在的生物填充剂用于生物膜应用是一种有前途的方法，可以确保使用可生物降解、环保、高质量的材料，并具有高性能的应用。这是一项全面的研究，旨在确定农业废弃物罗望子种子用于微晶纤维素生产的实用性，并评估其用于生物膜制造的可行性。提取过程通过连续的化学介导碱化、酸水解和漂白来进行。从罗望子种子中分离出的微晶纤维素（TSMCC）通过化学、热和形态学特性进行了表征，以验证纤维素的贡献、热稳定性和材料的相容性。通过评估密度和产率等物理参数来评估其轻质实用性和经济生产力。这些检查表明，TSMCC 具有良好的特定性能，如高纤维素含量（90.57%）、平均密度（1.561g/cm）、可行的平均粗糙度（12.161nm）、所需的粒径（60.40±21.10μm）、良好的结晶度（CI-77.6%）和热稳定性（高达 230°C）；这些都值得考虑 TSMCC 用于生物膜配方。随后，通过在聚乳酸（PLA）基质中增强 TSMCC 来制备生物膜，并研究了生物膜的机械性能，以确定 TSMCC 的功效。结果表明，在加入 TSMCC 后，纯 PLA 膜的性能得到了提高，其中添加 5%TSMCC 对结晶指数（从 26.16%增加到 39.62%）、热稳定性（从 333°C 增加到 389°C）、拉伸强度（从 36.11±2.90MPa 增加到 40.22±3.22MPa）和模量（从 2.62±0.55GPa 增加到 4.15±0.53GPa）的影响更大。鉴于所有有希望的特点，建议将 5%TSMCC 作为潜在的填充剂增强剂，用于未来活性包装应用的高质量生物膜的基础。
