Food Bioscience
·
2024
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IF 4.8
Shiyao Wang,Shanshan Liu,Xinxin Yang,Shihao Zhang,Xing Li,Qi Zhang,Yisheng Chen
Biosafe colorimetric labels that can accurately evaluate food freshness have been widely investigated in recent years. The colorimetric macro-array sensor, with the composite solution of curcumin, alizarin and acetic-acid as the indicator, was prepared by means of a self-developed 2D printing device to detect shrimp freshness. The results evidenced the sensor which had high stability, uniform color distribution and great sensitivity could be drop-on-demand printed in batches under the premise of micro-printing. When the TVB-N content of shrimp exceeded 20 mg/100g at all observed temperatures, the sensor abruptly turned from yellow to reddish-brown meanwhile the ΔE value raised sharply, indicating that there was a color mutation at the critical value of shrimp freshness. The macro-array sensor could be recognized by the smartphone to obtain the correlation between the color information (RGB) and TVB-N content, by which the shrimp freshness was determined. Furthermore, the correlation was verified through the WeChat mini-program. When the R value was less than 200 or the G value was below 140, the sensor was brown, suggesting the sample was inedible. Consequently, the system can be applied in food quality control throughout the supply chain.
研究领域:
食品科学
·
生物传感技术
✓ 已验证
DOI
高影响因子
Food Packaging and Shelf Life
·
2025
·
IF 10.6
Xiaoyu Xu,Kangqi Huang,Danfeng He,Bin Huang,Qun Tang,Heping Li,Zhiming Zou
Colorimetric ammonia-sensing smart packaging materials that enables real-time visual detection of food freshness play an important role in ensuring food safety. This work involved the construction of a novel Cu/Na-metal organic framework (CuNa-MOF) colorimetric ammonia sensing agent and its subsequent exploitation as functional reinforcing filler of potato starch (PS) substrate to boost the fabrication of high-performance smart packaging materials. Based on single crystal data analysis, a new mechanism of crystal-to-crystal phase transformation was proposed for the colorimetric ammonia-sensing action of CuNa-MOF. This new mechanism involved only minor changes in CuNa-MOF crystal structure (with the coordinated water replaced by ammonia), indicating its unique structural integrity and stability, thus contributing to superior ammonia sensing ability. The results also demonstrated that the introduction of CuNa-MOF (2–6 wt%) within PS substrate resulted in the formation of compatible and tight nanocomposite films. When the content of CuNa-MOF increased from 0 to 6 wt%, the tensile strength, water vapor barrier, and oxygen barrier capability was respectively increased by 11.6 %, 16.4 %, and 18.2 %, and the UV-shielding efficacy was increased from 36.8 % to 96.1 %. Furthermore, the fabricated PS/CuNa-MOF film presented good biocompatibility and long-term colour stability, while combining remarkable colour-changing ammonia sensing function with high antibacterial efficiency (100 %) against Escherichia coli and Staphylococcus aureus . Additionally, the PS/CuNa-MOF film allowed for real-time visual monitoring of prawn freshness decay by discernible coloration changes. This work offers a new strategy in the design of high-performance colorimetric ammonia-sensing materials for smart packaging application.
研究领域:
材料科学
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食品安全
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Food Packaging and Shelf Life
·
2021
·
IF 6.429
Yanyi Wen,Jia Liu,Lei Jiang,Zhongjie Zhu,Suirui He,Shu He,Wei Shao
An intelligent and active film was developed based on 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized bacterial cellulose (TOBC) containing thymol (THY) and anthocyanin-rich purple potato extract (ANT). The microstructure, thermal stability, water vapor permeability, mechanical property and UV protection performance of TOBC-based films were evaluated. Scanning Electron Microscopy (SEM) and Atomic Force Microscope (AFM) results show the additions of THY and ANT bring about the uneven distribution of TOBC fibers with slightly increased surface roughness . Meanwhile, the introduction of THY and ANT could increase the thermal stability, UV protection and water vapor barrier property of TOBC with slightly decreased tensile strength . The prepared ANT exhibits a pH-sensitive activity, and it endows the fabricated TOBC/THY/ANT film with colorimetric response ability to volatile ammonia. TOBC/THY/ANT film also exhibits good antibacterial and antioxidant activities . Particular finding is that TOBC/THY/ANT film possesses simultaneously freshness real-time monitoring and good shrimp preservation abilities. The antioxidant, antibacterial and color response performances of TOBC/THY/ANT film were measured for three cycles in order to prove its recycling ability. These unique features of TOBC/THY/ANT film demonstrate the potential in commercial shrimp packaging with freshness real-time monitoring.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Agriculture and Food Research
·
2023
·
IF 3.8
Simin Fan,Honglei Mu,Haiyan Gao,Hangjun Chen,Weijie Wu,Xiangjun Fang,Ruiling Liu,Ben Niu
Intelligent packaging was prepared and evaluated to determine the quality of shiitake mushrooms using colorimetric sensing. Bromothymol blue/methyl red composite dyes were incorporated into polyvinyl alcohol (PVA) to form a porous indicator via freeze-drying. The PVA indicator was then modified with polylactic acid (PLA). The porous structure of the indicator was investigated using scanning electron microscopy (SEM) imaging, and it was found that the hydrophobicity of the PVA/PLA indicator was significantly improved following modification. A sensitive colorimetric response toward the presence of CO 2 in packaging was achieved using the naked eye. During investigations into the potential application of this system, the ΔE value of the indicator was found to correlate significantly with the quality indices (i.e., the browning index, firmness value, malondialdehyde content, and sensory score) of shiitake mushrooms during storage. Based on these correlations, qualitative identification of the freshness of shiitake mushrooms was studied using principal component analysis, while a prediction model of this freshness was obtained by partial least squares regression. This indicator, therefore, shows potential for application in intelligent packaging for the detection of CO 2 due to the clear visualization of color changes by the naked eye.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2024
·
IF 11
Lihua Li,Qianru Su,Qiuhan Zhao,Li Ren,Ke Xu,Qiushuang Wu,Yuting Zhuang,Xin Lü,Li Wang
Smart packages based on natural pigment and macromolecular exhibited great potential in fresh meat but were limited by their poor stability and hydrophobic properties. Herein, we designed a stable smart packaging consisting of a series of preservation films (GPEF series) and smart labels (GPEF-C series), through emulsification and polyelectrolyte complexation. Cinnamic acid-chitosan nanoparticles (CC NPs) were used to prepare gallic acid-garlic essential oil W/O/W emulsions (EC) and emulsions loaded with curcumin (EC-Cur). The added emulsions and in-situ generated calcium CaHPO 4 nanoparticles significantly improved the hydrophobicity of films (WCA 111.3°–124.8°). As the emulsion concentration increased, films exhibited significant enhancement in antioxidant activity (50.2%–97.6%), antimicrobial properties (12.4%–99.8% against E. coli , 89.9%–100% against S. aureus ) and UV shielding properties (transmittance 0.7%–5.1%). Moreover, these films were environmentally friendly and degraded in soil after 10 days. GPEF-C 3 and GPEF-C 5 showed excellent color and fluorescence stability after 4.5 months, as well as pH response between pH 8–13. Compared with PE, GPE 5 F extended the shelf life of fish at 4 °C from 3 days to 5 days, and the color/fluorescence response of GPEF-C 3 exhibited consistency with TVB-N and CFU, which could accurately reflect the freshness of fish in real-time. Smart packaging based on GPE 3 F and GPEF-C 3 was a prospective option for preserving and monitoring fresh meat.
研究领域:
食品科学
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材料科学
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生物工程
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Guodong Liu,Ling Zheng,Zhuoqing Zhang,Yu Liu,Zhijian Li
The rational preparation and design of electrochromic devices (ECDs) are important for practical application, as integrated on packaging products to express key information by means of some intelligent technologies. This work aims to construct homogeneous film of poly (3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) adopting organic solvents doping and gravure printing on a paper substrate. The formed PEDOT:PSS film is shown to provide successfully the desired high conductivity and excellent stability after mild post-treatment via formic acid . The intrinsic reason for the conductivity enhancement is disclosed and correspondingly discussed. The prepared PEDOT:PSS film thus functions in parallel as an electrochromic and electrode layer in assembled ECDs. The two-layer ECD supports a well-defined electrochromic contrast (Δ E * = 20.5), high light absorption property (0.27) at 650 nm, fast switching, and high coloration efficiency (122.8 cm 2 C −1 ) at a low potential of |2.0| V. More importantly, the intelligent operation of the electrochromic unit is launched using wireless driving rather than external working voltage as usual. In application, the driving voltage for ECDs is obtained from the screen-printed induction coil that can be coupled with the magnetic field of near field communication (NFC) equipped in a smartphone. Thus, the wireless driven electrochromic system can be additionally integrated on the package together with a printed ECD in order to display the product pattern under the interaction of the smartphone, improving the interactivity between packaging products and consumers, thereby having high potential for application in the fields of intelligent packaging.
研究领域:
材料科学
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电子工程
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智能技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
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IF 15.1
Yali Zhao,Chao Li,Xiaodong Xia,Mingqian Tan,Haisong Wang,Yanna Lv,Yi Cheng,Yehan Tao,Jie Lu,Dongmei Li,Jian Du
Intelligent packaging system for real-time visual monitoring the freshness of foods plays a key role in the field of food safety. Employing biopolymer as matrix and natural anthocyanin as pH sensing indicator has arouse growing interest for freshness detecting in recent years. However, the anthocyanin migration phenomenon and relatively poor mechanical strength of film restricted the practicability of biopolymer-based smart packaging system. In this work, we constructed a sort of pH/moisture sensitive chitosan (CS)/carboxymethyl cellulose (CMC) coacervates containing anthocyanin (cyanidin cation type, extracted from blueberry) on cellulosic paper by facile layer-by-layer assembly, in which anthocyanin was firmly anchored. The accumulated release amount of anthocyanin in distilled water was reduced from 78.14% to 19.42% compared to pristine CMC-Anth paper. The maximum tensile strength was significantly improved from 9.51 MPa for initial filter paper to 55.68 MPa for (CS/CMC-Anth) 4 colorimetric paper and the compact CS/CMC-Anth bilayer endowed colorimetric paper with excellent structural stability upon folding at least 1000 times. The assembled (CS/CMC-Anth) 4 colorimetric paper delivered response to pH/moisture and can be employed to real-time monitor the freshness of pork and fruits. The integration of intelligent sensor technology and food science will make the food industry present a green, efficient, intelligent, accurate and diversified business model in the future.
研究领域:
食品科学
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材料科学
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Hongyi Ren,Shengzi Li,Keying Ding,Yan Wang,Qiping Zhan,Yonghua Zheng,Zhengguo Wu,Peng Jin
After harvest, fruits and vegetables go through the stages of storage, transportation and sales, and how to regulate the role of preservative in different stages is an urgent problem to be solved. Herein, chitosan-stearic acid is synthesized, then interacting with trans-2-hexenal (E2H) to prepare nanoclusters. Subsequently, the temperature-sensitive liposomes were designed to encase E2H by using the special temperature-responsive open-chain phospholipids, and then combined with chitosan to obtain chitosan-based coating film for peach preservation. The thermosensitive liposomes were uniformly distributed, highly dispersed and spherical, which has excellent temperature response characteristics, and the release of active substances could be regulated in the temperature range of 10 °C-40 °C to achieve the effect of on-demand release. In addition, thermosensitive liposomes also have excellent antioxidant and antibacterial activities. Therefore, the obtained chitosan-based coating could maintain the freshness of peaches, improve the quality and extend the storage period of peaches. The edible chitosan coating and active preservative prepared in this study have potential application value in responsive intelligent active packaging.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Dan Zheng,Shumin Cao,Dengming Li,Yihan Wu,Peijun Duan,Shanshan Liu,Xing Li,Xiaoyu Zhang,Yisheng Chen
In this study, a multi-functional packaging film was fabricated, utilizing the natural polysaccharide chitosan (CS) as the base material, integrating natural blueberry anthocyanin (AN) as pH-responsive indicator, and reinforced with cellulose nanocrystals (CNCs). The implications of addition levels of CNCs on the characteristics of the films were systematically investigated, resulting in that CS-AN-CNCs 9 % film exhibited optimal performance. Specifically, the film showed a substantial enhancement in maximum tensile strength from 15 MPa to 35 MPa; On the other hand, the swelling degree properties, the oxygen permeability and water vapor permeability decreased from 159.2 % to 92.0 %, from 51.7 g/(m 2 d) to 12.2 g/(m 2 d), from 31.6 × 10 −12 g/(m·s·Pa) to 1.6 × 10 −12 g/(m·s·Pa), respectively. Moreover, the CS-AN-CNCs 9 % film exhibited antioxidant, antibacterial, coupled with a color metrically responsive to pH variations, displaying great potential in indicating the shrimp freshness and delaying spoilage. Another notable advantage of the-prepared packaging material lies in its completely biodegradability, therefore meeting the requirement of environmental protection. Therefore, the prepared CS-AN-CNCs film as an intelligent packaging solution with potential applications in food preservation and freshness monitoring applications.
研究领域:
食品科学
·
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Qi Zhang,Gang Lin,Huainian Wang,Ming Chao Jin,Haoming Dang,Jie Zhang,Ruijie Guo,Hong Yan,Baolong Niu,Huifang Wang
This study focused on the preparation, functionality, and application of smart food packaging films based on polyvinyl alcohol (PVA) and anthocyanins (ACNs) -loaded sodium alginate-chitosan quaternary ammonium salt (HACC-SA) nanocomplexes. The average encapsulation rate of anthocyanins-loaded nanocomplexes reached 62.51 %, which improved the hydrophobicity and water vapor barrier of the PVA film. FTIR confirmed that the nanocomplexes were immobilized in the PVA film matrix by hydrogen bonding, which improved the mechanical properties of the film. The SEM and XRD results demonstrated that the HACC-SA-ACNs nanocomplexes were uniformly distributed in the film matrix and the crystallinity of PVA was decreased. The P/HACC-SA-ACNs film showed a significant response to buffers of pH 2–13 and high color stability after 21 days of storage compared to the P/ACNs film. Furthermore, the color of the composite film changed from purple to red as the milk freshness decreased during 72 h of milk freshness monitoring, indicating that the P/HACC-SA-ACNs films were suitable and promising for application as smart packaging materials.
研究领域:
食品科学
·
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Packaging and Shelf Life
·
2024
·
IF 8.5
Yahong Han,Mingrui Zhou,Jiajie Deng,Cheng Cheng,Zihan Xu,Wenfu Hou,Yang Yi,David Julian McClements,Shuai Chen
Recently, intelligent packaging integrated with natural colorants has garnered interest for its capability to assess the freshness of stored food and delay its spoilage. However, the poor dispersibility and stability of natural pigments limit their application. This study addresses these issues by encapsulating natural pigments in core-shell protein-polysaccharide nanoparticles to enhance their stability and dispersibility. Using curcumin and anthocyanin as examples, pigment-loaded nanoparticles were synthesized using antisolvent precipitation to create zein particles, which were then coated with chondroitin sulfate through electrostatic layer-by-layer deposition. This method produced spherical anionic nanoparticles with high encapsulation efficiency (Curcumin: 91.93 %, Anthocyanin: 85.85 %). These nanoparticles were incorporated into carrageenan-based composite films, which acted as freshness indicators and preservatives. The films' color shifted from green-brown ( L =33.47, a =9.46, b =11.09) to red-brown ( L =22.80, a =13.83, b =2.11) with increasing nanoparticle concentration (from 20 % to 40 % w/v), and their uniform microstructure demonstrated good compatibility with the biopolymer matrix. The films were tested as freshness indicators and preservatives for packaged fish, showing improved freshness detection and preservation effectiveness with higher nanoparticle content. These biodegradable materials are expected to be intelligent packaging solutions for the food sector.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yanan Xiao,Fengwei Xie,Hao Luo,Rongxing Tang,Jiazi Hou
A naked-eye detector based on a rapid transmittance response to alcohol was designed to offer real-time and reusable detection of fruit freshness. To ensure the hydrophobicity of the fibrous membrane and high light transmission response to alcohol, fluorine-rich poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) with a low refractive index was selected as the shell layer, while sodium alginate (SA) and polyvinyl alcohol (PVA) were selected as the core layer for coaxial electrospinning. The core–shell fibrous detector was obtained by treatment with CaCl2 to form a stable hydrogel and by water flushing to remove PVA. The interior structure of the fiber and its evolution were investigated with increasing SA concentration, which changed from a nonconcentric structure to a core–shell structure. Without SA, nonconcentric structured fibers were obtained due to high flowability and incompatibility between the organic solvent phase of PVDF-HFP and the aqueous phase of PVA. As the SA concentration increased, the enhanced viscosity and surface tension decreased the asymmetric mobility significantly, which competed with the charge attractive forces from the Taylor cone surface, leading to a core–shell structure. The as-spun membranes were opaque due to light scattering at the interface between air and fiber and became light transparent after immersion in a rotten fruit-containing alcohol and acetic acid due to a decreased light loss. The rapidly responsive, reusable fibrous membranes with over 90% light transparency developed here have high potential for application in visual intelligent packaging to monitor the freshness of fruits and vegetables.
研究领域:
材料科学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）