Enhanced composite Co-MOF-derived sodium carboxymethyl cellulose visual films for real-time and in situ monitoring fresh-cut apple freshness
文献类型： 外文期刊
作者： Zhang, Zhepeng 1 ; Zhang, Yang 1 ; Wang, Chen 1 ; Liu, Xianjin 2 ; El-Seedi, Hesham R. 3 ; Gomez, Paula L. 4 ; Alzamora, Stella M. 4 ; Zou, Xiaobo 1 ; Guo, Zhiming 1 ;
作者机构： 1.Jiangsu Univ, Sch Food & Biol Engn, China Light Ind Key Lab Food Intelligent Detect &, Zhenjiang 212013, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Food Safety & Nutr, Key Lab Food Qual & Safety Jiangsu Prov, Nanjing 210014, Peoples R China
3.Uppsala Univ, Dept Pharmaceut Biosci, Pharmacognosy Grp, BMC, Box 591, SE-75124 Uppsala, Sweden
4.Univ Buenos Aires, Consejo Nacl Invest Cientificasy & Tecn CONICET, C1428EGA, Buenos Aires, Argentina
关键词： Metal-organic framework; Multifunctional nano-filler; Sodium carboxymethyl cellulose; Intelligent film; Freshness monitoring
期刊名称：FOOD HYDROCOLLOIDS （ 影响因子：11.0； 五年影响因子：11.3 ）
ISSN： 0268-005X
年卷期： 2024 年 157 卷
页码：
收录情况： SCI
摘要： Natural biopolymers have extensively applications in intelligent food packaging due to their renewable nature, easy availability, environmental-friendly, low-cost and excellent processibility. Recently, the integration or embedding of nanocomposites on polymer substrates to improve the multi-faceted performance of packaging materials has attracted widespread attention. Herein, the irregular spherical Co-based metal-organic framework (Co-MOF) loaded with phenol red (PR) and bromothymol blue (BTB) were fabricated, resulting in absorbed nanocomposites Co-MOF/PR and Co-MOF/BTB. Afterward, the nanocomposites were integrated into a sodium carboxymethyl cellulose (CMC-Na) substrate to prepare a CO2-responsive packaging material (CMC-Na/PR/CoMOF and CMC-Na/BTB/Co-MOF) for real-time and in-situ monitoring apple freshness. The synthesis of Co-MOF and the hydrogen-bonding interactions between MOF and pigments adsorption were confirmed. The advantages exhibited by the film with adding Co-MOF, including excellent hydrophobicity and water resistance, improved time-temperature stability and mechanical properties, were explored. Notably, the Co-MOF-based composite film exhibited enhanced UV-visible barrier, anti-migration performance of pigment, and thermal stability. Finally, a significant linear response (R2 = 0.9923 and 0.9781) between the total color difference values (Delta E) of Co-MOFbased film and hardness and total soluble solids (TSS) of fresh-cut Fuji apples at 4 degrees C was demonstrated, respectively. These findings indicate the significant potential of CMC-Na-based composite film containing multifunctional MOF nano-filler as a visual monitoring system, which will pave the way for fresh-cut fruit intelligent packaging.
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