Open Veterinary Journal
·
2025
·Vol. 15
·期 4
·1836
·
IF 1
Jin-Kui Ma,Qian-Ru Lin,Zhi-Yao Liu,Jia-Min Wang,Xin Peng,Yu-Tong Lin,Li-Zhen Nie,Xiao-Chen Huang
Background: Food spoilage, particularly in meat products, presents a significant economic and health concern, necessitating the development of reliable and user-friendly monitoring methods. Aim: This study presents the development and evaluation of novel colorimetric films for real-time monitoring of meat freshness. Methods: Films were formulated using anthocyanin (AHO) and betacyanin (BTA) from purple cabbage and red dragon fruit, respectively, embedded within polyvinyl alcohol and carboxymethyl cellulose matrix. Two pigment ratios, AHO:BTA (1:3) and (3:1), were compared to evaluate mechanical properties, antioxidant activity, and ammonia sensitivity. Results: The AHO:BTA (1:3) film demonstrated higher tensile strength, whereas the (3:1) film exhibited greater antioxidant capacity and ammonia responsiveness. Colorimetric changes were assessed across the pH range, showing sensitivity to pH shifts. The films were then applied to beef, lamb, fish, and pork samples, and their color alterations during storage under ambient and refrigerated conditions were correlated with total volatile basic nitrogen and pH levels. Conclusion: The results show a strong correlation between film color changes and established meat spoilage indicators, demonstrating the potential of these natural pigment-based films for effective, nontoxic, and visual monitoring of meat freshness.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Yan Zhang,Qun Tang,Kangqi Huang,Zongshu Xu,Shaoxiong Feng,Heping Li,Zhiming Zou
There is a growing demand for the development of intelligent active packaging films to maintain and monitor the freshness of meat food . Herein, nano Co-based MOF (ZIF67) with ammonia-sensitive and antimicrobial functions was successfully synthesized and then integrated into cellulose acetate (CA) matrix to prepare intelligent active films. The impacts of ZIF67 incorporation on the structure, physical and functional characteristics of CA film were fully investigated. The results demonstrated that the ZIF67 nanofillers were evenly dispersed in CA matrix, resulting in remarkable improvement on tensile strength , toughness, thermal stability , UV barrier, hydrophobicity and water vapor barrier ability of CA film. Furthermore, the prepared CA/ZIF67 films exhibited superb antimicrobial and ammonia-sensitive functions. The CA/ZIF67 intelligent films turned their color from blue at beginning to brown during progressive spoilage of shrimp . These results revealed that the CA/ZIF67 films with excellent antimicrobial and ammonia-sensitive functions could be applied in intelligent active food 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
Nanoscale
·
2020
·Vol. 12
·期 32
·16987-16994
·
IF 6.895
Qian Sun,Jian Wang,Xiang Wang,Jie Dai,Xiaoshan Wang,Huacheng Fan,Zhiwei Wang,Hai Li,Xiao Huang,Wei Huang
MXenes, a rapidly developing family of two-dimensional materials possessing tunable electronic properties and abundant surface functional groups, are promising gas-sensing materials. Ti2CTx, with a thinner unit cell thickness compared to its compositional analogue Ti3C2Tx and thus more profound surface-dependent properties, has been less explored over the past years. Herein, by etching the precursor Ti2AlC with a concentrated HF or LiF/HCl mixture, semiconducting Ti2CTx (HF) nanosheets and metallic Ti2CTx (LiF/HCl) nanosheets were obtained, respectively, arising from their treatment-dependent surface functionalization. In addition, the resulting metallic nanosheets were partially oxidized into TiO2/Ti2CTx (LiF/HCl) hybrid, which exhibited superior sensitivity toward NH3 gas as compared with Ti2CTx (HF) and Ti2CTx (LiF/HCl). Detailed analysis suggests that a high concentration of surface oxygen containing species, such as –Ox, –(OH)x and Ti–O–Ti, is generally beneficial for NH3 sensing, and a relatively higher –Ox concentration allows rapid gas desorption and sensor recovery.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2021
·
IF 4.952
Jian Zhu,Zhiqing Liu,Hui Chen,Hongsheng Liu,Xianyang Bao,Chunyan Li,Ling Chen,Long Yu
In this work, we applied a very sensitive aggregation-induced emission (AIE) indicator of 6,7-dimethyl-2-buthy-2,3-dimethphenyl-1,2-dihydroquinoxaline (H + DQ2) for monitoring seafood spoilage, which was labeled in a designed novel biodegradable package composed of a polylactic acid (PLA) tray and a poly (butylene adipate-co-terephthalate) (PBAT) film. Firstly, a polydimethylsiloxane (PDMS)-coated filter paper was employed as a hydrophobically basal-layer to deposit the H + DQ2 indicator. A maximum contact angle of around 138° and 1.5 times increase of the tensile strength were found at an optimal coating concentration of PDMS of 0.6 g/100 g. The developed H + DQ2 indicator showed a higher sensitivity upon exposure to ammonia vapors even at a low concentration of 1.3 × 10 4 mg/m 3 and could be reused for over five cycles. The results showed that in applying to monitor the spoilage of shrimp , the color variations (from red to yellow) and fluorescence-emission (turn on) changes of the indicator were in a good agreement with the variation of total volatile basic nitrogen (from 10.52 mg/100 g to 31.03 mg/100 g) and colony forming units (from 4.4 log CFU/g to 6.5 log CFU/g) of prepackaged shrimps at 4 °C after stored five days. The developed intelligent packaging could provide a real-time and highly sensitive detection of seafood spoilage.
研究领域:
食品科学
·
材料科学
·
生物工程
✓ 已验证
DOI
高影响因子
Advanced Science
·
2022
·Vol. 9
·期 30
·2203428
·
IF 17.521
Wanglin Zhang,Jiamin Zhao,Chenchen Cai,Ying Qin,Xiangjiang Meng,Yanhua Liu,Shuangxi Nie
Gas-sensitive materials are capable of dynamic identification and content monitoring of specific gases in the environment, and their applications in the field of gas sensing are promising. However, weak adsorption properties are the main challenge limiting the application of gas-sensitive materials. A highly adsorbent gas-sensitive cellulose nanofibril (CNF)-based triboelectric material with a layered structure is prepared here and it is applied to self-powered gas sensing. The layered structure of the triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane cellulose nanofiber (PFOTES-CNF)-based gas-sensitive material further enhances the adsorption of the material due to electrostatic adsorption in the electrostatic field induced by triboelectricity. It is found that the ammonia-sensitive material obtained by loading Ti 3 C 2 T x in PFOTES-CNF has a fast response/recovery (12/14 s), high sensitivity response ( V air / V gas = 2.1), high selectivity response (37.6%), and low detection limit (10 ppm) for 100 ppm of ammonia gas. In addition, the ammonia-sensitive CNF-based triboelectric material can accurately identify NH 3 concentration changes in the range of 10–120 ppm and transmit the signal wirelessly to the user interface, facilitating real-time online monitoring of NH 3 in the environment. A novel strategy is provided here for designing and preparing high-performance gas-sensitive composites and the analysis of self-powered gas sensing is guided.
研究领域:
材料科学
·
环境监测
·
传感器技术
✓ 已验证
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2023
·
IF 6
Shuangyi Li,Jingwei Wu,Qun Tang,Danfeng He,Heping Li,Daijiang Peng,Zhiming Zou
Currently, there is a rising need for smart packaging materials that can be applied for the real-time visual monitoring of food freshness. In this work, new Co-based MOF (Co-ATMP) nanocrystals with ammonia-sensitivity function were prepared and then blended with polyvinyl alcohol (PVA) matrix to construct smart active packaging materials. The effect of Co-ATMP nanofiller upon structure, physical, and functional performances of the PVA films were then analyzed in detail. Results demonstrate that nano Co-ATMP fillers are distributed well within the PVA matrix through the formation of new hydrogen-bonding interaction, which make an obvious increase in the ductility, moisture permeability, and UV-blocking ability of the PVA film. Besides, the prepared PVA/Co-ATMP blend films present high antibacterial activity, ammonia-sensitivity as well as color stability. Ultimately, the PVA/Co-ATMP blend films were successfully employed for indicating the deterioration of shrimp through noticeable color variations. Therefore, the PVA/Co-ATMP blend films have great potential for utilization in smart active packaging area.
研究领域:
材料科学
·
食品科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Jiaran Zhang,Jie Yu,Hao Yin,Zhixin Jia,Ce Shi,Yuntao Yue
A fluorescent hybrid film composed of nitrogen-doped graphene quantum dots (N-GQDs) loaded on halloysite nanotubes (HNTs) (N-GQDs/HNTs nanocomposite) as a sensitive element and polyvinyl alcohol (PVA) as a film-forming matrix was designed for freshness detection. The PVA-N-GQDs/HNTs hybrid film exhibited significantly enhanced fluorescence attributed to the loading of N-GQDs onto the surface of HNTs through electrostatic interactions and hydrogen bonding , effectively reducing their aggregation. The fluorescence of the hybrid film could be quenched by ammonia via photoinduced electron transfer (PET), with good linearity in the range of 20 ppm to 500 ppm ammonia and a limit of detection (LOD) of 0.63 ppm. In addition, the hybrid film was applied to monitor the freshness of seawater fish and freshwater fish stored at refrigeration and room temperature to evaluate the practicality of this approach. The developed hybrid film showed promise for nondestructive and on-site monitoring of fish spoilage.
研究领域:
食品科学
·
材料科学
·
生物传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuxiao Hu,Jiayan Zhang,Jiaxin Tong,Zhijian Tan
In this study, a facile “one stone, four birds” strategy was implemented to fabricate a flexible smart food packaging tag by incorporating purple potato extract obtained using deep eutectic solvents (DESs) into a polyvinyl alcohol (PVA)/gelatin (Gel) substrate. The favorable properties of DESs enabled them to serve four different important functions in tag development: anthocyanin extraction; mitigation of anthocyanin oxidation; as a plasticizer to increase the mechanical properties of the tag; and to enhance NH 3 sensitivity. The physicochemical, microstructural, and functional properties of the tag were characterized using various methods. Moreover, density-functional theory (DFT) was used to calculate the adsorption energies for NH 3 at multiple sites on the DES. The tag was employed to monitor the freshness of shrimp and fish, whereby it underwent conspicuous color changes during 10 h of storage, which enabled classification of the products as fresh, sub-fresh, or spoiled. Overall, the developed flexible smart tag shows significant potential for application in monitoring the freshness of high-protein food.
研究领域:
食品科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yongfeng Kang,Duhong Cai,Dandan Zhao,Xiying Li,Jie Hu,Siwen Chen,Weiqi Chen,Li Li
With the increasing concern over food safety, the development of smart labels capable of visually monitoring food freshness in real-time has become increasingly urgent. In this study, a novel zinc-based metal-organic framework (Zn-MOF) was synthesized and incorporated into a poly(vinyl alcohol) and starch matrix to prepare PS@Zn-MOF composite films. The films demonstrated colorimetric and fluorescent dual-signal responsiveness, ammonia sensitivity, and antimicrobial properties. A comprehensive evaluation of the films revealed excellent mechanical properties, UV shielding ability, and water vapor barrier capabilities. Furthermore, the films exhibited color stability, with a ΔE value change of <2.4 after 40 days of exposure. When applied to monitor shrimp spoilage, the films shifted from yellow-brown to purple-red in daylight and from blue to violet fluorescence under UV light. The color difference and fluorescence intensity in both response modes were linearly correlated with TVB-N values. The shrimp packaging application demonstrated that the films effectively maintained shrimp freshness. These findings suggest that the dual-signal intelligent freshness monitoring system based on PS@Zn-MOF composite films presents a promising solution to food safety challenges.
研究领域:
食品安全
·
材料科学
·
生物传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Packaging and Shelf Life
·
2022
·
IF 8.749
Shuo Shi,Xiaowei Xu,Jia Feng,Yanming Ren,Xue Bai,Xiufang Xia
The pH, ammonia, and H 2 S sensitivity of sodium alginate/black soybean seed coat anthocyanin (SA/BSSCA) films and their response mechanism were analyzed based on stability, intermolecular interactions, and microstructure. The results showed that the with the BSSCA content increased from 0.02% to 0.30%, SA/0.02–0.12BSSCA films had the highest color stability. The highest sensitivity to pH, ammonia, and H 2 S was observed for the SA/0.12–0.30BSSCA films, meanwhile, the SA/0.12BSSCA film had the highest sensitivity to meat unfreshness and spoilage. The incorporation of BSSCAs reduced the water solubility, water vapor absorption, and permeability of the films. With the BSSCA addition, the intermolecular interaction between BSSCAs and SA intensified, reducing the film roughness and number of aggregated particles, resulting in compact microstructures, which improved the film sensitivity. Thus, the SA/0.12BSSCA film was sensitive to pH, ammonia, and H 2 S and, therefore, meat spoilage, while having higher stability, moderate water barrier properties, and denser microstructure.
研究领域:
食品科学
·
生物化学
✓ 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）