FOOD CHEMISTRY
·
2023
·
IF 8.8
Lixin Kang,Qiufang Liang,Qayum Abdul,Arif Rashid,Xiaofeng Ren,Haile Ma
To prevent food spoilage caused by microbial infection, the development of an environmentally friendly antimicrobial preservation material is crucial. Here, the microporous γ-CD-MOFs was utilized to encapsulate the hydrophobic active substance curcumin, resulting in the preparation of a non-toxic antimicrobial material (Cur-CD-MOFs). The results revealed that curcumin encapsulation in Cur-CD-MOFs occurred primarily in the carbonyl group, benzene ring, and enolic side ring of curcumin. The Cur-CD-MOFs had a 100% bactericidal effect on Escherichia coli and Staphylococcus aureus at 4 h and 8 h, and a strong inhibitory effect on aerial mycelium of Penicillium expansum and Botrytis cinerea . Furthermore, the incorporation of Cur-CD-MOFs improved the Pul/Tre film barrier and mechanical properties. The effectiveness of Cur-CD-MOFs-Pul/Tre in retaining fruit freshness was validated using Centennial Seedless grapes. This study confirmed that Cur-CD-MOFs is a promising antibacterial material, and Cur-CD-MOFs-Pul/Tre will be a potent candidate for food preservation.
研究领域:
食品科学
·
生物技术
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Junying Wu,Ruijie Guo,Houting Kang,Yanming Wang,Jingyuan Tian,Jierong Wang,Hong Yan
Metal–organic frameworks (MOFs) have great potential in improving the fire safety of polymer materials. To improve the fire resistance and smoke suppression of polypropylene (PP), a flame-retardant system ZIF-67@γ-CD-MOFs@APP incorporating multiple flame-retardant elements was designed and applied to PP. The coated PP passed UL-94 V-0 level with the LOI up to 36.2% and char residue of 12.47%. The PHRR, PSPR, COP, and CO 2 P of coated PP were reduced by 52.65%, 24.72%, 36.49%, and 52.29%, respectively, compared to neat PP. In addition, the tPHRR, tPSPR, tCOP, and tCO 2 P were prolonged by 405.3%, 345.4%, 427.8%, and 405.3% compared to pure PP, allowing more escape time when facing a real fire. Integrating the hierarchical porous structure provided by ZIF-67 and γ-CD-MOFs, catalytic carbonization of transition metal Co and the nitrogen-containing ligand, ZIF-67@γ-CD-MOFs@APP played a flame-retardant role both in the condensed and gas phase, endowing PP with enhanced flame retardancy and smoke suppression. The “all-in-one” strategy provides helpful insights for constructing fire retardant system with multi-level nanostructure.
研究领域:
材料科学
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高分子科学
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消防安全工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 23
·e02743
·
IF 2
Xiaoling Xie,Jingyuan Tian,Junying Wu,Ruijie Guo,Jie Zhang,Dongsheng Fu,Huifang Wang,Baolong Niu,Hong Yan
Graphical The novel antibacterial agent CuO@γ-CD-MOFs was synthesized and then incorporated into the PLA/PBAT composite films for food packing materials. The films exhibited superior antibacterial activity and strong UV-blocking ability and water vapor barrier property. Besides, the complementary PLA and PBAT endowed the composite films with enhanced elongation at break compared with that of brittle PLA, and higher tensile strength than PBAT. The biosafe and reusable γ-CD-MOFs were employed as the copper oxide (CuO) carriers to counter the agglomeration of CuO nanoparticles (NPs); and such a novel antibacterial agent CuO@γ-CD-MOFs was synthesized by a facile and eco-friendly direct calcination approach, and then incorporated into the polylactic acid (PLA)/poly(butylene adipate-co-terephthalate) (PBAT) composite films for food packing materials. The effect of the CuO@γ-CD-MOFs nanoparticles on the antibacterial and physical properties was investigated, and the films with 5% CuO@γ-CD-MOFs NPs content displayed the optimal comprehensive performance. Specifically, the composite films PPM-5 exhibited superior antibacterial activity with the inhibition rates against Staphylococcus aureus and Escherichia coli exceeding 95%, which attributed to the uniformly dispersed CuO nanoparticles by metal organic frameworks (MOFs) carrier. Besides, the films provided strong UV-blocking ability and water vapor barrier property. Furthermore, the complementary PLA and PBAT endowed the composite films with enhanced elongation at break compared with that of brittle PLA, and higher tensile strength than PBAT. MTT assay confirmed the satisfactory biocompatibility. The composite films are expected to find great applications in the field of biodegradable food packing.
✓ 已验证
产品关联
DOI
高影响因子
Food Packaging and Shelf Life
·
2024
·
IF 8.5
Jing Yi,Shuqi Zhang,Xuanxuan Yuan,Zhilong Zhang,Zhongguo Shan,Haihua Wang
The increasing emphasis on food quality and consumer safety has prompted researchers to explore green manufacturing techniques for packaging materials. In this study, γ-cyclodextrin metal-organic frameworks (γ-CD-MOFs) were prepared as promising nanocarriers for gallic acid (GA) and silver nanoparticles (Ag NPs). These nanocarriers (GA-Ag@CD-MOFs) were further incorporated into a zein matrix to fabricate multifunctional composite films, referred to as MOFs-Zein. Scanning electron microscopy (SEM) and atomic force microscope (AFM) analysis indicated that the fabricated composite film exhibited excellent biocompatibility, with GA-Ag@CD-MOFs uniformly dispersed within the film matrix. Fourier transform infrared spectroscopy (FT-IR) result revealed that the incorporation of GA-Ag@CD-MOFs facilitated the formation of intermolecular hydrogen bonds with the matrix polymer. The addition of GA-Ag@CD-MOFs enhanced the tensile strength of the composite film by 19.70 %, improved the water barrier performance by 57.76 %, and provided almost 100 % UV protection. The exceptional controlled release capability of γ-CD-MOFs for GA empowered the composite films to maintain their robust initial antioxidant capacity even after 100 days of storage. Moreover, the composite films performed high-efficiency antibacterial activity against Escherichia coli O157:H7 and Salmonella enterica . Acute toxicological studies showed no histopathology related toxicity was found in GA-Ag@CD-MOFs treated mice. When applied to fresh pork, the composite films significantly reduced the key quality indicators of raw meat, compared to the control film. Overall, this work presents a promising approach to fabricate the composite films as a sustainable and functional solution for green functional food packaging.
研究领域:
材料科学
·
食品科学
·
纳米技术
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）