Scholarlink

<p>Biopolymer films are gaining attention as sustainable alternatives for food packaging due to their eco-friendly properties and functional benefits. This study focuses on developing a composite film using carboxymethyl cellulose (CMC) and ɩ-carrageenan (CG), optimized for Indian cottage cheese (paneer) packaging to provide effective barrier properties, mechanical strength, and biodegradability. Using central composite design (CCD) and response surface methodology (RSM), the formulation was fine-tuned to reduce the water vapour transmission rate (WVTR) and elongation at break (EB) while enhancing tensile strength (TS). The optimal composition of 1.434% CMC and 1.772% CG demonstrated excellent mechanical and barrier properties, with TS (7.14&#xa0;MPa), EB (33.96%), and WVTR (254.01&#xa0;g/m²/day), showing percentage errors of 1.96%, 3.44%, and 1.44%, respectively, relative to the predicted model values. Additional evaluations, including thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM), confirmed the film’s thermal stability, structural integrity, and smooth morphology. When heat sealed at 210&#xa0;°C, the film exhibited antimicrobial activity, inhibiting <i>Staphylococcus aureus</i> with a 15.6&#xa0;mm zone of inhibition, and extended the shelf life of paneer to 18 days. With biodegradability under composting conditions and visual appeal, this CMC/CG film offers a promising alternative to synthetic food packaging materials.</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

Optimization of CMC/ɩ-Carrageenan Films for Packaging of Indian Cottage Cheese (Paneer) Using Response Surface Methodology

  • 期刊论文

  • 发表日期：

    2025年6月30日

查看全文
  • Nirmala JP,
  • Kanchana M,
  • Ragava Raja R

摘要

Biopolymer films are gaining attention as sustainable alternatives for food packaging due to their eco-friendly properties and functional benefits. This study focuses on developing a composite film using carboxymethyl cellulose (CMC) and ɩ-carrageenan (CG), optimized for Indian cottage cheese (paneer) packaging to provide effective barrier properties, mechanical strength, and biodegradability. Using central composite design (CCD) and response surface methodology (RSM), the formulation was fine-tuned to reduce the water vapour transmission rate (WVTR) and elongation at break (EB) while enhancing tensile strength (TS). The optimal composition of 1.434% CMC and 1.772% CG demonstrated excellent mechanical and barrier properties, with TS (7.14 MPa), EB (33.96%), and WVTR (254.01 g/m²/day), showing percentage errors of 1.96%, 3.44%, and 1.44%, respectively, relative to the predicted model values. Additional evaluations, including thermogravimetric analysis (TGA), Fourier-transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM), confirmed the film’s thermal stability, structural integrity, and smooth morphology. When heat sealed at 210 °C, the film exhibited antimicrobial activity, inhibiting Staphylococcus aureus with a 15.6 mm zone of inhibition, and extended the shelf life of paneer to 18 days. With biodegradability under composting conditions and visual appeal, this CMC/CG film offers a promising alternative to synthetic food packaging materials.