Food Packaging and Shelf Life
·
2023
·
IF 8
Liling Fu,Yi Ru,Qinglin Hong,Yonghui Zhang,Huifen Weng,Qiuming Yang,Qiong Xiao,Anfeng Xiao
Caffeic acid was grafted to agarose by a nonradical synthesis method to improve the functional properties of agarose and its application value in food preservation. Structural characterization showed that the carboxyl group of caffeic acid was successfully grafted to the C6-OH of D -galactose in agarose, and the highest grafting ratio could reach 12.18 %. Incorporating caffeic acid significantly increased the antioxidant and bacteriostatic activities. With the increase in grafting ratio from 0 % to 12.18 %, the scavenging ratio of DPPH increased from 0 % to 50.09 %, and the inhibition ratio of β -carotene bleaching increased from 7.49 % to 72.21 %. The bacteriostatic ratio of agarose caffeate (Cf-Ag) against Escherichia coli and Staphylococcus aureus could reach 100 %. The fish preservation test indicated that Cf-Ag had positive effects on inhibiting bacterial growth and fat oxidation , reducing the water loss, and prolonging the overall quality of grass carp fillet during refrigeration, which was more effective than native agarose in extending the shelf life of fish.
研究领域:
食品科学
·
生物化学
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产品关联
DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 4
·1358
·
IF 3.4
Meiling Shao,Zhan Shi,Xiangfei Zhang,Bin Zhai,Jiashu Sun
The metabolic disorder of the wound microenvironment can lead to a series of serious symptoms, especially chronic wounds, which result in significant pain in patients. At present, there is no effective and widely used wound dressing. Therefore, it is important to develop new multifunctional wound dressings. Hydrogel is an ideal wound dressing for medical nursing because of its abilities to absorb exudate and maintain wound wetting, its excellent biocompatibility, and its ability to provide a moist environment for wound repair. Because of these features, hydrogel overcomes the shortcomings of traditional dressings. Therefore, hydrogel has high medical value and is widely studied. In this study, a biodegradable hydrogel based on polysaccharide was synthesized and used as a wound dressing. The swelling degree and degradability of hydrogel were characterized as the characteristics of the wound dressing. The results showed that the prepared hydrogel was degraded with trypsin and in the soil environment. Furthermore, the wound dressing can effectively inhibit the bacterial environment, promote the deposition of the collagen structure of the wound tissue, and accelerate the healing of the wound. The proposed hydrogel has value in practical medical nursing application.Keywords:degradable hydrogel;wound dressing;bacteriostatic performance
研究领域:
材料科学
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生物医学工程
·
药剂学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2024
·
IF 5.6
Hui Chang,Sameh A. Korma,Jian Chen,Tao Yang
Traditional packaging materials easily cause white pollution, developing green biological packaging is highly important for environmental sustainability. In this study, double-modified tapioca starch (DMTS) was prepared and characterized. Further, clove essential oil (Ceo) at concentrations of 0.5 %/0.75 %/1.0 %/1.25 % (wt%) was loaded into the DMTS film matrix to develop an applicable active packaging material. XRD analysis and FT-IR results revealed that esterified starch was successfully prepared, the DM/CS/Ceo films had a dense intermolecular network, and the Ceo was successfully incorporated into the polymer matrix. The performance test results demonstrate well-performing mechanical, hydrophobic, and antioxidant properties of Ceo series composite films. Specifically, the EAB of the 1.25 % Ceo film increased by 10.7 %, the water contact angle increased by 18.89°, and the DPPH free radical clearance increased by 12.79 times compared to that of the DM film. In addition, the inhibition rates of the 1.25 % Ceo film against Escherichia coli and Staphylococcus aureus reached 86.51 % and 86.84 %, respectively. These results indicate that Ceo films have tremendous potential application value in prolonging food storage life.
研究领域:
食品科学
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材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Zhipeng Mao,Wei Hao,Wei Wang,Fubin Ma,Chengcheng Ma,Shougang Chen
As an influential antifouling material, photocatalytic materials have drawn attention increasingly over recent years owing to their potential bacteriostatic property in the domain of marine antifouling. Herein, a flower-like BiOI@CeO 2 @Ti 3 C 2 S-scheme photocatalyst was contrived and prepared by hydrothermal method . The innovative combination of Ti 3 C 2 and narrow band gap semiconductor BiOI was implemented to modify CeO 2 and the photocatalytic bacteriostatic mechanism of BiOI@CeO 2 @Ti 3 C 2 was elucidated. Schottky junction was formed between CeO 2 and Ti 3 C 2 , and a p-n junction was formed between CeO 2 and BiOI. By photoelectrochemical characterization, BCT-10 exhibits the best photoelectrochemical performance of which photogenerated carrier transport can be performed more readily at 10 % CeO 2 @Ti 3 C 2 addition. 99.76 % and 99.89 % of photocatalytic bacteriostatic efficiency of BCT-10 against Escherichia coli and Staphylococcus aureus were implemented respectively, which were 2.98 and 3.07 times higher than that of pure CeO 2 . The ternary heterojunction can suppress photogenerated electron-hole complexes more effectively and enhance the photocatalytic bacteriostatic effect of CeO 2 , which also provided a new concept to the further broadened application of CeO 2 in the marine bacteriostatic and antifouling field.
研究领域:
材料科学
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环境科学
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微生物学
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产品关联
DOI
PubMed
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2022
·
IF 4.966
Yaling Lin,Deqiang Zhang,Shijie Shan,Wei Zhang,Rui Li,Anqiang Zhang
As the pathogen of banana Fusarium wilt, Fusarium oxysporum f . sp. cubense race 4 (Foc4) has the strongest toxicity and pathogenicity due to its long-term viability in soil, but there is still no effective way to control it at present. Based on the activity parameters of polymeric quaternary ammonium salt in our previous work, this paper hopes to enhance the amphiphilicity of polymeric quaternary ammonium salt by introducing a fluoroalkyl group to improve the antifungal property of polymeric quaternary ammonium salt and achieve stable adsorption and long-term inhibition of saprophytic Foc4 conidia in soil. Here, we prepared a series of fluorine-containing ammonium salts with random and block structures by atom transfer radical polymerization (ATRP), and we systematically studied the effects of the introduction of fluoroalkyl groups, the proportion of hydrophobic segments and polymer structure on micelle properties, antifungal properties, adsorption, migration and long-term antifungal properties against Foc4 in soil. Finally, the preferred polymeric quaternary ammonium salts were selected for pot experiments in the prevention and control of banana Fusarium wilt caused by Foc4, and positive experimental results were achieved. In conclusion, we made an exploratory attempt at the practical application of polymeric amphiphilic quaternary ammonium salt in plant disease control.
研究领域:
植物病理学
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农业化学
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2023
·Vol. 38
·期 11
·2863-2873
·
IF 2.7
Zhang XiaoNan,Yang Zhongxin,Xu Wenqin,Li Xing,Pan Guanghua,Chen Nan-Chun,Xie Qing-Lin,Wang Xiu Li
Potassium diformate (KDF) has broad prospects in replacing common antibiotics in animal feed; however, the utilization rate of KDF in the animal intestine is low. Therefore, it is necessary to construct a drug delivery system for its targeted release in the colon. When Zeolite P was used as a drug-binding effector, KDF was uniformly dispersed in the pectin matrix, and the pectin bacteriostatic microspheres loaded with KDF were prepared using the emulsion cross-linking method. The optimized pectin bacteriostatic microspheres were systematically characterized, we observed that the drug loading rate and stability of pectin bacteriostatic microspheres improved significantly after adding Zeolite P and the utilization rate of KDF in the simulated intestine was higher than that in the stomach. The pectin bacteriostatic microspheres exerted significant bacteriostatic effect on Escherichia coli and Staphylococcus aureus , indicating that they may be widely used in livestock feed as bacteriostatic agents. Graphical Abstract In order to improve the antibacterial effect of KDF in intestinal tract, W/O emulsion microcapsules were prepared by emulsification method. When Zeolite P was used as a drug-binding effector, KDF was uniformly dispersed in the pectin matrix, and the pectin bacteriostatic microspheres loaded with KDF were prepared using the emulsion cross-linking method. Moreover, the bacteriostatic microspheres possessed significant growth inhibitory effects on E. coli, S. aureus and Bacillus subtilis.
研究领域:
动物营养学
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微生物学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Huiling Ding,Mengke Zhang,Yan Liu,Yize Yao,Zenghui Mai,Huaixin Zheng,Bo Song,Bingbing Fan,Hailong Wang,Hongxia Lu
With the rapid development of global economy and industrialization, the management and protection of water resources have become increasingly important. In this paper, a novel three-dimensional Chitosan/Fe 3 O 4 /TiO 2 @MXene photocatalyst with excellent degradation and bacterial inhibition properties was prepared by a simple one-step hydrothermal method using FeCl 3 ·6H 2 O, Chitosan (CS) and MXene (Ti 3 C 2 ) as main raw materials. TiO 2 was generated in-situ on the surface of Ti 3 C 2 nanosheets and modified by loading Fe 3 O 4 nanoparticles and CS films. The conformations and band gaps of the composites were modified, and then photocatalytic mechanisms, phase compositions, morphological structures, magnetic properties and photoelectrochemical properties of the photocatalysts were systematically analyzed. The degradation efficiency of the CS/Fe 3 O 4 /TiO 2 @Ti 3 C 2 composite photocatalyst can reach 95.9 % when the ration of CS to FeCl 3 ·6H 2 O is 1:3 and the hydrothermal temperature is 180 °C, which showing excellent photocatalytic performance. Meanwhile, the inhibition rate of Staphylococcus aureus ( S. aureus ) is close to 98.91 % under the light condition. This study further reveals that visible light is a cost-effective way to treat pollution in terms of degradation and bacteriostatic inhibition, and the composite photocatalysts can be efficiently recycled and reused under the action of a magnetic field.
研究领域:
环境科学
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材料科学
·
纳米技术
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产品关联
DOI
高影响因子
Food Bioscience
·
2023
·
IF 5.2
Xinru Liu,Lili Wang,Chaomin Li,Xi Li,Thanutchaporn Kumrungsee,Xuqing Zhai,Zhongkai Zhou,Ruge Cao
In this study, we selected yeast fermentation, hydrothermal treatment , enzymolysis, ultrasonic treatment, and steam explosion to treat buckwheat bran, based on their known potential to enhance the extraction rate of polyphenol content. Enzymolysis was identified as the most efficient method, leading to a 1.9-fold rise in the extraction rate of polyphenol content from buckwheat and a 1.05-fold increase in ABTS values. To further improve the properties of buckwheat polyphenols, they were complexed with chitooligosaccharide (PP–COS) via hydrogen bonding between the polyphenols' aromatic protons and the hydroxyl group of COS. The antioxidant and antibacterial properties were further augmented in PP-COS, demonstrating excellent storage stability. The ABTS , DPPH, and FRAP values were 1.08-fold, 1.12-fold, and 1.04-fold higher than those of control polyphenols, respectively. Additionally, PP-COS was successfully applied to oat flour , further expanding its potential benefits. When compared to pure oat flour , oat flour supplemented with PP-COS exhibited lower pasting parameters, higher solubility and swelling power, lower peak temperature, lower crystallinity, and reduced in vitro digestibility. This study illustrates that various pretreatments exhibit differences in the way and degree of cell wall disruption. The careful selection of optimal pretreatments along with molecular complexation can significantly amplify the extraction efficiency and bioactive potential of grain polyphenols, as exemplified by those present in buckwheat.
研究领域:
食品科学
·
植物化学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Tianhua Xiao,Lei Fan,Rongtao Liu,Xingwen Huang,Shihuan Wang,Liangang Xiao,Yiyu Pang,Da Li,Jia Liu,Yonggang Min
Polyetheretherketone (PEEK) is a biocompatible polymer, but its clinical application is largely limited due to its inert surface. To solve this problem, a multifunctional PEEK implant is urgently fabricated. In this work, a dual-metal–organic framework (Zn–Mg-MOF74) coating is bonded to PEEK using a mussel-inspired polydopamine interlayer to prepare the coating, and then, dexamethasone (DEX) is loaded on the coating surface. The PEEK surface with the multifunctional coating provides superior hydrophilicity and favorable stability and forms an alkaline microenvironment when Mg2+, Zn2+, 2,5-dihydroxyterephthalic acid, and DEX are released due to the coating degradation. In vitro results showed that the multifunctional coating has strong antibacterial ability against both Escherichia coli and Staphylococcus aureus; it also improves human umbilical vein endothelial cell angiogenic ability and enhances rat bone marrow mesenchymal stem cell osteogenic differentiation activity. Furthermore, the in vivo rat subcutaneous infection model, chicken chorioallantoic membrane model, and rat femoral drilling model verify that the PEEK implant coated with the multifunctional coating has strong antibacterial and angiogenic ability and promotes the formation of new bone around the implant with a stronger bone–implant interface. Our findings indicate that DEX loaded on the Zn–Mg-MOF74 coating-modified PEEK implant with bacteriostasis, angiogenesis, and osteogenesis properties has great clinical application potential as bone graft materials.
研究领域:
材料科学
·
生物医学工程
·
组织工程
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产品关联
DOI
PubMed
高影响因子
TALANTA
·
2024
·
IF 5.6
Jiayu Zhang,Haiyan Qi,Tonghui Yi,Tao Jing,Ming Zhao,Jun Li,Maoxia Ran,Xiaochen Zhu,Chao Luo
A highly sensitive ultra-small ratiometric fluorescence nanosphere probe was successfully manufactured to detect Sunset Yellow (SY). The probe, CMCS@N, S-CDs/Rh6G, was formed through the encapsulation of N, S-CDs and Rh6G within carboxymethyl chitosan (CMCS) through in situ cross-linking. Remarkably, our nanosphere probe had an average grain diameter of 6.80 nm and exhibited excellent dispersibility without the need for additional solvents. The probe exhibited a strong linear relationship with SY concentration in the range of 0.26–100 μM, with a low detection limit of 0.078 μM. Furthermore, SY demonstrated strong fluorescence quenching capability on our nanosphere probe, with the fluorescence quenching mechanism involving a combined effects of inner filter effect (IFE) and static quenching. Notably, our nanosphere probe retained the bacteriostatic properties of CMCS , with a substantial bacteriostasis rate of 77.58 %, introducing novel potential applications.
研究领域:
分析化学
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食品科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2023
·Vol. 24
·期 4
·1367-1377
·
IF 2.5
Fang Jin,Meng Chen,Wang Yingfeng,Yang Yi,Han Lun,Wang Shubo,Zhang Guangzhi,Xu Zhenzhen,Min Jie
Recently, the use of natural dyes for simultaneous dyeing and finishing of textiles has become a popular trend with the expanding interest in eco-textiles and environmental-friendly processing techniques. In this study, the natural dye was extracted from biomass lotus seedpod waste, and the effects of temperature, time, and pH as well as a metal mordant on fabric dyeing performance were investigated, and then it was applied to eco-dyeing and functional finishing of cotton fabric together with the bio-mordant chitosan. The dyeing performance and functionality of cotton fabric were characterized through SEM, UV–Vis, Datacolor and indicators such as color strength, color fastness, ultraviolet protection factor, and bacterial inhibition rate. The results showed that the color stability of natural dye was higher under acidic conditions, and the pH had more influence on the dyeing effect of the fabric compared with temperature and time. Though metal mordanting could obtain a higher color strength, it had a certain effect on the color phase of the dyed fabric. SEM showed that cationized chitosan was successfully deposited on the surface of cotton fibers, which improved the dye exhaustion rate of the fabric by reducing the electrostatic repulsion between cotton fibers and dye molecules, thus increasing the color strength ( K/S value of about 4–5 for directly dyed cotton fabric and 7.6446 for chitosan pretreated dyed cotton fabric) and various color fastness (rubbing, washing, saliva, and light fastness were greater than or equal to grade 4). Compared with other fabrics, the chitosan pretreated dyed cotton fabric had a higher ultraviolet protection factor (UPF value = 63.4) and excellent inhibition of E. coli and S. aureus (99.86 and 99.99% initial inhibition, 99.08 and 98.21% after ten cycles of washing). This study provides a new idea for the high-value utilization of biomass waste in textile processing.
研究领域:
纺织科学
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天然染料
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环保加工
·
生物质利用
·
功能整理
✓ 已验证
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Youwei Yu,Silong Jia,Hesheng Wang,Xinyu Yang,Tian Li,Qiyuan Feng,Linna Wang,Limin Guo,Ziyu Jing,Liangliang Zhang,Meng Liu,Shaoying Zhang
In this study, β-cyclodextrin-encapsulated navel orange essential oil (NOEO) microcapsules were integrated into a chitosan (CS)/zein-stabilized Pickering emulsion. This formed an edible composite coating with dual sustained-release functionality. It is worth noting, in order to improve the antibacterial and antioxidant properties of chitosan, p-coumaric acid (PCA) was grafted onto chitosan. Fourier transform infrared spectroscopy confirmed successful PCA grafting onto chitosan. Hydrogen bonding potentially existed among coating components. Scanning electron microscopy verified NOEO's stable presence within the composite film. The NOEO emulsion exhibited a 4.8 μm average particle size with excellent physical stability. Compared to pure CS coating, the composite coating demonstrated a 30.3% improvement in waterproof performance. Antibacterial inhibition diameters reached 14.3 mm against both Escherichia coli and Staphylococcus aureus, and 15.3 mm against Alternaria alternata. Antioxidant capacity increased to 88.2%. Sustained-release experiments showed microcapsules enhanced essential oil release efficiency by 31%. Applied to cherry tomatoes, the coating effectively delayed senescence and decay while maintaining product quality during 16-day storage at 25 °C.The composite coating material developed in this study exhibits dual advantages of environmental benignity and economic feasibility, demonstrating promising potential for applications in postharvest quality maintenance of horticultural produce.
研究领域:
食品科学
·
材料科学
·
采后技术
·
纳米技术
·
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）