FOOD RESEARCH INTERNATIONAL
·
2025
·
IF 8
Yexia Xiao,Yongdong Zhao,Ziqing Li,Huifang Wang,Jie Zhang,Baolong Niu,Wenfeng Li
The problem that strawberries are highly susceptible to microbial infection and have a short shelf life seriously limits their practicality. Therefore, it is imperative to develop advanced packaging films with excellent antimicrobial properties. This study developed a novel encapsulation agent for the synthesis of ultra-low particle size ZnONPs. An antibacterial system of p-coumaric acid -modified chitosan (PCS) coated ZnONPs (ZnONPs@PCS) under blue light photocatalysis was constructed and applied to the PCS and polyvinyl alcohol matrix for strawberry preservation. SEM results indicated that the synthesized ZnONPs@PCS had an average size of 26.10 ± 0.28 nm and exhibited a spherical morphology with good dispersion and outstanding antibacterial performance: the inhibition zone diameters against E. coli and S. aureus were 16.1 mm and 18.5 mm, respectively, with MIC of 300 μg/mL and 150 μg/mL, respectively. ZnONPs@PCS also demonstrated significant photocatalytic activity: exposure to light reduced the absorbance of DPBF by 60.66 %, and the antibacterial performance against E. coli and S. aureus was significantly enhanced compared to dark conditions. The addition of ZnONPs@PCS enables the composite film to exhibit excellent mechanical properties, barrier properties, antibacterial properties, etc. Under light irradiation, the antibacterial efficiency of the PPZ-2 composite film exceeded 95 %, extending the shelf life of strawberries to seven days. This novel composite film holds great promise as an effective packaging material for fruit preservation.
研究领域:
纳米技术
·
食品科学
·
材料科学
·
抗菌技术
·
光催化
·
包装工程
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2018
·
IF 4.946
Linlin Li,Hualin Wang,Minmin Chen,Suwei Jiang,Shaotong Jiang,Xingjiang Li,Qiaoyun Wang
Butylated hydroxyanisole (BHA) encapsulated in gelatin (GA) (GA-BHA) fiber mats were fabricated via electrospinning technique and applied to strawberry preservation. The volatile release kinetics and functional effectiveness of the mats were investigated. BHA was high efficiently encapsulated in GA fibers and the antioxidant activity of BHA could be well protected. The encapsulation of BHA enhanced the stability of GA and favored structure transition of GA from random coil and β-turns to α-helix and β-sheet. The GA-BHA mats showed good antibacterial activity against Staphylococcus aureus , and the predominant volatile release mechanism of BHA from mats was Fickian diffusion. Furthermore, the mats also showed broad-spectrum antifungal activity against four mould genera ( Rhizopus sp., Mucor sp., Aspergillus sp. and Penicillium sp.). The shelf-life of strawberry can be prolonged effectively in the presence of GA-BHA mats during storage. Results suggested that the GA-BHA mats may have a great potential in active food packaging.
研究领域:
食品科学
·
材料科学
·
生物技术
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产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Jiahao Yu,Shanlin Xu,Rongheng Chen,Ping Shao
The incorporation of natural extracts of deep eutectic solvent (DES) into polysaccharide represents a promising approach for the development of bioactive edible films . In this study, the effect of whole DES-extracts of tomato processing by-product with lycopene on physical properties and antioxidant properties of chitosan films was firstly studied. Thermal stability (−9.8% for weight loss ratio), UV blocking properties, hydrophilicity (−38.9% for contact angle) of the film were improved. Free radical scavenging rate was increased by about 1.6 times, and the formation rate of oxidation product for olive oil was reduced especially in the first 10 days with the addition of DES-tomato extracts. The decay rate of strawberry treated with DES-tomato extracts decreased by −55.41%, and the loss of VC, polyphenol and catalase activity and malondialdehyde of oxidation product clearly decreased. Chitosan coating with whole DES-tomato extracts improved the storage quality and extended the shelf life of strawberries, was a promising method for the fresh-keeping of fruits and vegetables.
研究领域:
食品科学
·
高分子科学
·
农业技术
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材料科学
·
生物技术
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Hongxin He,Xi Zhuang,Hao Yi,Yifan Liu,Yuancai Lv,Xiaoxia Ye,Liang Song,Chunxiang Lin,Minghua Liu
Eucommia ulmoides residue mainly contains lignocellulose and Eucommia ulmoides gum (EUG), the comprehensive utilization of these components could not only help waste disposal but also support the sustainable development. Lignocellulose nanofibrils (E-LCNFs) with varying lignin contents were isolated from the residue waste produced from EUG extraction from Eucommia ulmoides pericarp using p -toluene sulfonic acid hydrolysis. The obtained E-LCNFs were then used as reinforcement to fabricate EUG/E-LCNFs composite films, which were then characterized and the wettability, mechanical and water vapor barrier properties were tested. Meanwhile, effect of lignin content on the performance of the composite films was also discussed. The results showed that limited incorporation of E-LCNFs as well as the presence of lignin greatly improved the water contact angle (WCA), mechanical properties and vapor barrier property of the composite films. Compared with the pure EUG film, the composite film incorporated 4 % E-LCNFs with lignin content of 17.53 % presented WCA of 99.9°, elongation at break of 422.5 % and water vapor permeability (WVP) values of 0.29 × 10 −9 g/m/h/Pa at RH of 75 %. Additionally, strawberry preservation experiments demonstrated that the EUG/E-LCNFs composite films could effectively extend the shelf life by reducing weight loss, enabling it to be a desirable alternative to traditional petroleum-based food packaging materials.
研究领域:
材料科学
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高分子科学
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纳米技术
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食品包装
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植物生物技术
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Yuanmeng Zhou,Jing Wang,Shulun Ai,Zhiguang Guo
Food safety has always been a major concern of all mankind. Investigating biobased antimicrobial packaging is crucial for enhancing fruit preservation and promoting environmental sustainability. In this study, we developed a multifunctional biobased film with superhydrophobic and antimicrobial properties through the integration of chitosan (CS), resveratrol-encapsulated shellac nanoparticles (RSNPs), and carnauba wax (CW). By harnessing the antimicrobial capabilities of both chitosan and resveratrol, the film demonstrated an impressive antimicrobial efficacy of up to 99.9% against E. coli and S. aureus. The incorporation of RSNPs significantly enhanced the mechanical and UV-resistant properties of the film. Additionally, the hierarchical microstructure and low surface energy of the carnauba wax coating confer exceptional superhydrophobicity (CA > 150°) to the film, effectively minimizing liquid residues and bacterial adhesion on its surface. Our findings indicated that this film inhibits microbial growth, preserves strawberry quality, and prolongs shelf life during storage at both 25 and 4 °C. The findings suggested that the resveratrol-encapsulated shellac chitosan films possess excellent superhydrophobicity, mechanical properties, and antimicrobial performance, making them suitable as biobased antimicrobial packaging for long-term food preservation.
研究领域:
材料科学
·
食品科学
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环境科学
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生物技术
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产品关联
DOI
高影响因子
JOURNAL OF FOOD SAFETY
·
2020
·Vol. 40
·期 3
·e12791
·
IF 1.133
Jia-li Xu,Hong Gao,Hai-bo Zhang,Shu-feng Yao,Dan Wang,Shi-bin Shang
A water-soluble rosin polymer (RP) was prepared via polymerization of rosin and maleic anhydride. The structure of the RP was characterized via Fourier-transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and gel permeation chromatography. The RP was used as a film-forming agent on strawberries to improve their postharvest quality at room temperature. The effectiveness of this treatment was evaluated based on the impact of the RP coating on the following parameters: weight loss, total soluble solids (TSS), firmness, respiration rate, malondialdehyde (MDA) content, anthocyanin content, and total phenolic content (TPC). The samples that coated with the RP exhibited delayed respiration and loss of firmness compared with the control. Correspondingly, the samples coated with the RP had lower weight loss (14.78%), MDA content (8.13 × 10 −2 μmol/g), anthocyanin content (37.86 mg/100 g), TPC (3.41 × 10 −4 mg/100 g), and higher TSS (8.09%). The results indicated that the RP preservative could effectively maintain the freshness of fruits.
研究领域:
食品科学
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材料科学
·
农业工程
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Yuxin Li,Ziqi Hua,Yangjing Li,Tao Chen,Abdulhakeem S. Alamri,Yu Xu,Wei Gong,Yiyang Hou,Majid Alhomrani,Jiangning Hu
Incorporating polysaccharide-based composite films with nanobiotechnology offers a new strategy for food preservation. This study initially focuses on the preparation of tea polyphenol nanoparticles (TPNP), novel and derived from natural antibacterial agents, which serve to improve stability. Afterwards chitosan-based composite films loaded with TPNP (CTN film) were developed using solution casting method. The incorporation of TPNP significantly improved the UV/water/oxygen barrier properties, mechanical properties and thermal stability, alongside notable physical properties including water contact angle (93.65 ± 0.04°), low water vapor permeability (33.72 ± 3.32 g/m 2 h) and oxygen permeability (0.11 ± 0.02 g/m 2 h), tensile strength (61.83 ± 0.70 %), and elongation at break (31.60 ± 6.12 %). The CTN film not only exhibited exceptional biodegradability and nontoxicity, but also demonstrated remarkable antimicrobial efficacy against Escherichia coli and Bacillus subtilis . Additionally, it showcased potent antioxidant activity, boasting DPPH and ABTS radical scavenging rates up to 89.25 ± 0.18 % and 93.84 ± 0.42 %. The CTN film was successfully formed on the surface of strawberries through dip-coating process and their shelf life was extended from 4 to 6 days at 20 °C without side-effect on the weight loss, harness, pH and total soluble solids, illustrating its potential for enhancing food preservation.
研究领域:
食品科学
·
纳米技术
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可降解材料
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抗菌技术
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抗氧化研究
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2024
·
IF 10.7
Wenqian Nong,Honglin Luo,Gang Wang,Qicong Chen,Xiaosu Zou,Weiwei Miao,Jun Wu,Weiliang Guan,Shenhong Qu
The development of safe, environmentally friendly, edible antimicrobial packaging films represents a promising alternative to conventional plastic packaging for reducing spoilage and extending the shelf life of fresh food. Here, we propose a novel strategy to construct edible β-CD-MOF/carvacrol@zein (BCCZ) composite films by intertwining β-CD-MOF loaded with the antimicrobial essential oil carvacrol, and zein. The resulting BCCZ films exhibit high humidity-triggered, long-lasting bactericidal efficacy, effective fruit preservation, and excellent biosafety. Characterization revealed that BCCZ films possess a compact texture, hydrophilic surface, low water vapor permeability, and high humidity sensitivity. Additionally, this film act as a “storehouse” for carvacrol, enabling humidity-controlled release (96.3% release at 100% RH and only 12.0% at 43% RH on day 7). BCCZ film effectively inhibited Gram-positive Staphylococcus aureus , Gram-negative Escherichia coli , and fungi ( Botrytis cinerea ) through the release of liquid-phase and vapor-phase carvacrols under both direct contact and indirect contact conditions in high humidity. Owing to the film's humidity-triggered, long-term release of carvacrol, strawberries packed in BCCZ films maintained their freshness and appearance significantly better after seven days of storage at 21 °C. This work provides valuable insights and holds promise for the design and commercial application of safe, environmentally friendly freshness-preserving packaging films.
研究领域:
食品科学
·
材料科学
·
生物技术
·
微生物学
·
包装工程
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Ying He,Tian Zhong,Yiguo Liu,Menghui Wan,Lei Sun,Yanbao Zhao,Zhihua Wang
To mitigate environmental impacts in food preservation, the development of a multifunctional membrane for packaging is of importance. In this study, we have successfully fabricated a nanofibrous membrane using an eco-friendly electrospinning technique, comprising polyvinyl alcohol (PVA), chitosan (CS), and tannic acid (TA). The resulting nanofibrous membranes were crosslinked with glutaraldehyde (GA) and surface modified with ZnO. Our findings demonstrate that the crosslinking process enhances water resistance, reduces water vapor permeability, improves tensile strength (from 3 to 18 MPa), and enhances thermal stability (increasing decomposition temperature from 225 °C to 310 °C). Furthermore, the incorporation of TA and ZnO provides antioxidant properties to the membrane, effectively preventing food decomposition caused by UV-induced oxidation. Additionally, CS, TA, and ZnO synergistically exhibit a remarkable antibacterial effect with a bacteriostasis rate exceeding 99.9 %. The strawberry fresh-keeping experiment further confirms that our developed membrane significantly extends shelf life by up to 6 days. Moreover, cytotoxicity assays confirm the non-toxic nature of these membranes. The innovative significance of this study lies in proposing a robust GA-PVA/CS/TA@ZnO nanofibrous membrane with excellent mechanical properties, biocompatibility, and multiple functionalities including antibacterial, anti-ultraviolet, and anti-oxidation capabilities. It has tremendous potential for applications in active food packaging materials.
研究领域:
食品科学
·
材料科学
·
生物技术
·
环境科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2024
·
IF 5.7
Yanxin Zhang,Kehan Zhang,Zhenyan Bao,Jianan Hao,Xiaoyun Ma,Chengguo Jia,Mingyuan Liu,Dongsheng Wei,Shengxiang Yang,Jianchun Qin
Botrytis cinerea (B. cinerea) and Colletotrichum gloeosporioides (C. gloeosporioides) were isolated from the decaying strawberry tissue. The antifungal properties of Monarda didyma essential oil (MEO) and its nanoemulsion were confirmed, demonstrating complete inhibition of the pathogens at concentrations of 0.45 μL/mL (0.37 mg/mL) and 10 μL/mL, respectively. Thymol, a primary component of MEO, was determined as an antimicrobial agent with IC50 values of 34.51 (B. cinerea) and 53.40 (C. gloeosporioides) μg/mL. Hippophae rhamnoides oil (HEO) was confirmed as a potent antioxidant, leading to the development of a thymol-HEO-chitosan film designed to act as an antistaling agent. The disease index and weight loss rate can be reduced by 90 and 60%, respectively, with nutrients also being well-preserved, offering an innovative approach to preservative development. Studies on the antifungal mechanism revealed that thymol could bind to FKS1 to disrupt the cell wall, causing the collapse of mitochondrial membrane potential and a burst of reactive oxygen species.
研究领域:
食品科学
·
植物病理学
·
材料科学
·
生物技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xianrui Chen,Lin Wang,Di Zhang,Nitong Bu,Wei Liu,Zhenzhen Wu,Ruojun Mu,Pingping Tan,Yuanbo Zhong,Jie Pang
Currently, antimicrobial films with stable and efficient antibacterial activities are receiving considerable attention in the food packaging industry. Herein, a chemically/physically linked konjac glucomannan–sodium alginate (KGM–SA)@carbon nanotubes (CNTs)/Fe3+ composite film with outstanding resistance to ultraviolet radiation, oxidation, and bacteria, as well as excellent photothermal effects and mechanical properties, was successfully prepared using a solvent flow method. Tannic acid-modified carboxyl-functionalized CNTs (TCCNTs), l-cysteine-modified carboxyl-functionalized CNTs (LCCNTs), and Fe3+ were incorporated into the prepared film. The film structure of KGM–SA@CNTs/Fe3+ was characterized using various methods, confirming the formation of a dual-cross-linked network through metal-coordination bonds and hydrogen bonding. This unique structure endowed the film with excellent water vapor permeability (3.58 g mm/m2 day kPa), water resistance (water contact angle = 93.66°), and thermal stability. Further, the film exhibited outstanding photothermal conversion efficiency and stability under near-infrared irradiation (300 mW/cm2) as well as excellent bactericidal properties against Staphylococcus aureus and Escherichia coli, achieving a bacterial inhibition rate of >99%. In a strawberry preservation experiment, the KGM–SA@CNTs/Fe3+ composite film exhibited remarkable preservation effects, extending the shelf life of strawberries by 4–6 d. Thus, this photothermal antibacterial film offers a new approach for the application of CNTs in food packaging.
研究领域:
食品科学
·
材料科学
·
纳米技术
·
生物技术
·
包装工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Biophysics
·
2021
·Vol. 16
·期 4
·460-473
·
IF 3.114
Zhang Xiuling,Li Zhen,Ji Run,Li Kun,Zhang Wentao
Biodegradable composite films based on pullulan/carboxymethyl cellulose/nano-TiO 2 were prepared using a solution casting method. In this study, the composite films were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM), and their physical, mechanical and antimicrobial properties were investigated. FTIR and XRD results confirmed that the presence of nano-TiO 2 could enhance the interaction between the film matrix. SEM analysis revealed that the composite films had a homogeneous network structure, and good particle dispersion could be obtained when the nano-TiO 2 particle content was low. DSC results indicated that the composite films possessed good thermal stability. The incorporation of nano-TiO 2 increased the thickness and contact angle while significantly decreasing the water solubility ( p < 0.05). As the content of nano-TiO 2 increased, the water vapor and ultraviolet visible (UV–Vis) light barrier properties of composite films were significantly improved ( p < 0.05). Mechanical analysis demonstrated that the tensile strength of the composite films first increased and then decreased, whereas the elongation at break decreased significantly ( p < 0.05). In addition, the composite films exhibited excellent activity against Escherichia coli and Staphylococcus aureus mainly due to the inactivation of bacteria by nano-TiO 2 photocatalysis. Preservation experiments showed that the composite films could decrease the weight loss significantly and maintain the firmness, titratable acidity, vitamin c and skin color of strawberries, thereby improving the overall quality of strawberries and extending their shelf life. This finding suggested that pullulan/carboxymethyl cellulose/nano-TiO 2 composite films possessed excellent potential for application in food packaging.
研究领域:
材料科学
·
食品科学
·
生物技术
·
化学
·
农业工程
✓ 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）