Scholarlink

<p><i>Borassus flabellifer</i> (palmyra palm) is a versatile tree of the Arecaceae family, widely used for various applications. The peels of its sprouts, often discarded as waste, are a rich source of cellulose that can be utilized to produce biodegradable materials. The study focuses on synthesizing carboxymethyl cellulose (CMC) from <i>Borassus flabellifer</i> sprout peel and evaluating its physicochemical, structural, and functional properties for the developed biodegradable films. CMC achieved a yield of 41.22%, with a degree of substitution of 0.26 ± 0.01, a moisture content of 10.79 ± 0.95%, and an ash content of 3.05 ± 0.81%, confirming high purity. FT-IR analysis confirmed the presence of carbonyl stretching peaks at 1726.29&#xa0;cm<sup>−1</sup> and 1157.29&#xa0;cm<sup>−1</sup>, while XRD peaks at 20.97° and 26.67° indicated reduced crystallinity and increased amorphous content. SEM analysis revealed significant structural modifications with a disordered morphology in the synthesized CMC. Thermal analysis showed a prominent endothermic peak at 160&#xa0;°C, demonstrating thermal stability similar to commercial CMC. CMC was blended with PVA to develop biodegradable films evaluated for quality parameters. Increased BF-CMC concentration enhanced film opacity, moisture content, and GSM, while reducing thickness and transparency. Films plasticized with PEG showed lower moisture content and higher solubility compared to glycerol-plasticized films. Tensile strength improved with PEG addition, while higher PVA and lower CMC concentrations enhanced elongation percentage. Water vapour permeability was influenced by plasticizer type and concentration. The films demonstrated antimicrobial activity due to bioactive compounds in BF sprout peel, showing significant inhibition against pathogenic microorganisms and free radical scavenging activity. Biodegradability tests confirmed high degradation rates, with over 50% decomposition within 15&#xa0;days, highlighting their potential as sustainable packaging materials.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Valorization of Borassus flabellifer sprout peel: synthesis and characterization of carboxymethyl cellulose for biodegradable packaging

  • 期刊论文

  • 发表日期：

    2025年1月15日

查看全文
  • E. Raja Rajeshwari,
  • P. S. Sathanya,
  • S. Vignesh,
  • V. Chandrasekar,
  • N. Baskaran

摘要

Borassus flabellifer (palmyra palm) is a versatile tree of the Arecaceae family, widely used for various applications. The peels of its sprouts, often discarded as waste, are a rich source of cellulose that can be utilized to produce biodegradable materials. The study focuses on synthesizing carboxymethyl cellulose (CMC) from Borassus flabellifer sprout peel and evaluating its physicochemical, structural, and functional properties for the developed biodegradable films. CMC achieved a yield of 41.22%, with a degree of substitution of 0.26 ± 0.01, a moisture content of 10.79 ± 0.95%, and an ash content of 3.05 ± 0.81%, confirming high purity. FT-IR analysis confirmed the presence of carbonyl stretching peaks at 1726.29 cm−1 and 1157.29 cm−1, while XRD peaks at 20.97° and 26.67° indicated reduced crystallinity and increased amorphous content. SEM analysis revealed significant structural modifications with a disordered morphology in the synthesized CMC. Thermal analysis showed a prominent endothermic peak at 160 °C, demonstrating thermal stability similar to commercial CMC. CMC was blended with PVA to develop biodegradable films evaluated for quality parameters. Increased BF-CMC concentration enhanced film opacity, moisture content, and GSM, while reducing thickness and transparency. Films plasticized with PEG showed lower moisture content and higher solubility compared to glycerol-plasticized films. Tensile strength improved with PEG addition, while higher PVA and lower CMC concentrations enhanced elongation percentage. Water vapour permeability was influenced by plasticizer type and concentration. The films demonstrated antimicrobial activity due to bioactive compounds in BF sprout peel, showing significant inhibition against pathogenic microorganisms and free radical scavenging activity. Biodegradability tests confirmed high degradation rates, with over 50% decomposition within 15 days, highlighting their potential as sustainable packaging materials.

Graphical abstract