Film-forming Properties Research Articles

Innovative insights into the preparation of tamarind gum base film loaded with pomelo essential oil via a low-energy emulsion method combined with melatonin: Maximizing the dual functions of tamarind gum

Pomelo essential oil has good antioxidant and antimicrobial properties. The objective of this study was to modify the active packaging loaded with essential oil through low-energy emulsification, in order to achieve both film-forming and emulsifying properties of tamarind gum, and to investigate the surface activity of melatonin in the emulsion. When α:β mixing ratio of 60:40, the resulting film solution exhibited favorable apparent viscosity and reduced emulsion flocculation and precipitation phenomena. Particle size distribution analysis and optical microscopy results demonstrated that the obtained emulsion was uniformly dispersed at an α:β mixing ratio of 60:40, with droplet diameters mainly concentrated within the range of 1–100 μm. After undergoing film-forming treatment, E-3-F (α:β mixing ratio of 60:40) exhibited a smoother and more compact microstructure, leading to significant improvements in mechanical properties and barrier performance. Laser confocal microscopy imaging revealed that the addition of melatonin further reduced interfacial tension between oil and water, while simultaneously weakening hydrophobic interaction forces among oil droplets, thereby effectively inhibiting droplet aggregation behavior. Moreover, incorporation of melatonin also enhanced material compactness and imparted excellent antioxidant effects to the packaging material. Consequently, this study ultimately unveils potential for low-energy emulsification combined with melatonin application in bio-based packaging field while providing novel insights into developing multifunctional bio-based packaging.

Double-bridged N–B←N bipyridyl-based airfoil-shaped small molecule dyes: π-bridge regulation on photovoltaic performance

The double-bridged N–B←N bipyridine unit (BNBP) with boron-nitrogen covalent bond and coordination bond can reduce the electronic energy level of the π-conjugated system, resulting in a reduction of band gap and a red shift in the absorption spectrum. Embedding the BNBP building block into organic optoelectronic materials provides a novel possibility in molecule design. In this paper, under the guidance of density functional theory (DFT) calculations, a series of 3D “airfoil-shaped” small molecule donors (SMDs) have been designed and successfully synthesized through Sonogashira, Suzuki and Stille coupling reactions. BNBP is adopted as the central electron-withdrawing unit and strong electron-rich triphenylamine (TPA) as the terminal group. The novel “airfoil-shaped” structure plays a supporting role in reducing the carrier recombination in the active layer. It reveals that molecular design engineering can achieve the expected results by the following steps: Firstly, the introduction of electron-rich alkoxy groups into the end of TPA through side chain engineering helps to improve the solubility and film-forming properties of the materials. Then, the π-bridge regulation not only extends the conjugate structure, but also plays a crucial role in the regulation of photovoltaic properties. It is worth noting that the compound BNBP(3TTPA)2 was synthesized by introducing thiophene oligomer into BNBP-based SMDs for the first time. Finally, the compound BNBP(EDPPTPA)2 was constructed by combining BNBP with DPP dye unit. Its narrow band gap is only 1.36 eV, which is one of the narrowest band gaps in small molecular organic-boron materials. In particular, compared with the starting compound BNBP(ETPA)2, the synergistic effects of DPP and BNBP broaden the edge absorption wavelength to 814 nm, resulting in a red shift of 170 nm. The power conversion efficiency (PCE) of 4.48 % is obtained in BNBP(EDPPTPA)2-based bulk heterojunction (BHJ) organic solar cells (OSCs), which is more than twice that of reference compound BNBP(ETPA)2. This work provides important references for the future development of 3D BNBP-based organic-boron SMDs and the structural regulation of materials through molecular engineering.

Synthesis and Characterization of Barley Starch-g-Polyacrylamide with Zinc Sulphate (ZnSO4) Metal Salt

There has been extensive interest from researchers in utilizing the natural biopolymer as a reinforcement material in thermoplastic composite. Growing research has been carried out on natural biopolymer reinforcement thermoplastic composites due to their low processing cost. Starch, a natural carbohydrate biopolymer due to its biodegradability and versatility, has become a subject of industrial and academic studies for many decades. Grafting of starch on various monomers increased the hydrophilicity and hydrophobicity. High viscosity, thermal stability, biodegradability, good film-forming properties, and water absorption capacity are some properties shown by the graft co-polymerization of starch. The present work was conducted to synthesize the barley starch-g-polyacrylamide-based composite material. In this research the effect of different weight percentages of metal (?10%) on different properties of starch-g- polyacrylamide (20% and 80%) composite was studied. The analytical techniques including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (X-ray), and scanning electron microscope (SEM) were used for the characterization of composite material. The composition of the synthesized composite was assessed by FTIR which confirmsthe functionalization of the prepared composite and there is a strong interaction between composite and metal due to coordinate covalent bonds. XRD defines the crystalline structure of the composite the morphological changes were studied by SEM.

Effect of camellia oil body-based oleogels on the film-forming properties of soy protein isolate

Soybean protein isolate (SPI) was frequently used to make edible films due to its highly degradability and excellent film forming ability. However, the limited barrier properties and low tensile strength of SPI films prevent their application in food packaging. In this study, the SPI film was modified by blending camellia oil body-based oleogel (COBO). COBO improved the mechanical properties of SPI film and increased its light-blocking, water insolubility and barrier properties. Micrograph, particle size distribution, protein conformation and crystalline structure analysis illustrated that camellia saponin in COBO formed hydrogen bonds with SPI, significantly reduced the particle size of the film-forming emulsion, and enhanced the order and uniformity of composite films structure, thus improved the overall performance of the SPI films. The SPI-COBO film packing delayed the weight loss, total soluble solids content increase, and the decrease in hardness of stored strawberries. This study puts forwards a new approach for SPI film modification by blending natural emulsified lipids, contributing to the development of sustainable packaging alternatives.

Preparation and characterization of silicone oligomer modified polyurethane acrylates for leather finishing

Polyurethane acrylates (PUA) are commonly used as leather finishing agents because of their excellent film-forming, mechanical and abrasion resistance properties. In this study, silicone-modified polyether-based waterborne polyurethane acrylate (WPUA) was synthesized as an environmentally friendly leather finishing agent. The effects of different soft segments on the properties of WPUA were investigated by tensile strength, water absorption, thermogravimetry (TG), derivative thermogravimetry (DTG), and water contact angle tests. The results showed that the WPUA synthesized with PTMG 2000 as the soft segment had higher elongation at break, lower water absorption, and a larger water contact angle. The effect of different mass percentages of silicone on the properties ofpolytetramethylene oxide (WPUA) was investigated by scanning electron microscope (SEM), particle size, zeta potential, Fourier transform infrared spectroscopy (FT-IR), water contact angle, folding resistance, and mechanical properties. It was found that the hydrophobic, tensile, and folding resistance properties of the waterborne leather finishing agent were best when the silicone content was 5 wt%. What’s more, the synthesized silicone-modified polyether-type waterborne polyurethanes, with excellent comprehensive performance, have great potential for industrial application in leather finishing agents.

Preparation and properties of UV curing varnish suited for various substrates

UV-curing varnish has gained widespread application in the field of surface treatment due to its advantages such as low-temperature curing, easy fading, and environmental friendliness. The aim of this study is to develop a high-performance UV-curing varnish compatible with various substrates. Five prepolymers, Polymethyl Methacrylate (PMMA), Poly (methyl methacrylate-random-acrylic acid) P(MMA-r-AA), Poly (methyl methacrylate-random-glycidyl methacrylate-random-styrene) (P(MMA-r-GMA-r-St)), Poly (methyl methacrylate-random-butyl acrylate-random-glycidyl methacrylate) (P(MMA-r-BA-r-GMA)) and Poly (butyl acrylate-random acrylic acid-random glycidyl methacrylate-random styrene)(P(BA-r-AA-r-GMA-r-St)), were synthesized by free radical polymerization. The film-forming effect of prepolymer on 13 substrates such as glass, coated paper, polyethylene, polyethylene glycol terephthalate and low density polyethylene was investigated. Based on the results, the two prepolymers with the best film-forming properties were selected and combined with five distinct diluents and two types of photoinitiators to produce multiple UV-curing varnish formulations. The effects of the types of prepolymer, the types and contents of photoinitiator, the types of diluent and the ratios of prepolymer to diluent on the photocuring rate of UV curing varnish were investigated. The structures of prepolymer were characterized by Fourier infrared spectrometer. The experimental results show that PMMA and P(MMA-r-GMA-r-St) have better film-forming effects on 13 substrates. When the prepolymer is P(MMA-r-GMA-r-St), the photoinitiator is ITX, the photoinitiator content is 75 mg/mL, diethylenetriamine:GMA = 1:3 (diluent), and the ratio of prepolymer to diluent is 1:4, the photocuring rate of UV curing varnish is the fastest.

Hydroxypropyl methylcellulose phthalate films reinforced with nanocrystalline cassava starch and intended its applications for colonic drug delivery

Controlled-release drug delivery systems are crucial for improving therapeutic efficacy and patient compliance. Hydroxypropyl methylcellulose phthalate (HPMCP) films are promising candidates due to their film-forming properties and tunable release profiles. However, their mechanical properties can limit their applicability. This study aimed to assess the effect of addition of nanocrystalline cassava (NCS) starches to HPMCP films on the physicochemical and mechanical properties and the ability of films to control drug release rate. Reinforced HPMCP films with 2, 4 and 6 % w/w of NCS were characterized as a function of the microstructure, X-ray diffraction pattern, mechanical properties, and dissolution property. It was found that increasing starch amount induced an increase in heterogeneity of the film microstructure and crystallinity. The tensile strength of HPMCP films increased with addition of starches, while the elongation at break decreased. The lowest dissolution in pH 6.8 phosphate buffer solution was found for films containing NCS at 2 and 4 % w/w. For the application purposes, HPMCP containing different amounts of NCS was used to coat over diclofenac sodium tablets. The tablets coated with HPMCP containing 4 % w/w NCS showed the lowest drug release of 73.5 % in pH 6.8 phosphate buffer solution at 240 min. According to our results, the addition of NCS at adequate amount allowed to improve the mechanical properties of HPMCP films and to decrease the drug release rate which is important for the site-specific drug delivery process.

Chemically modified seaweed polysaccharides: Improved functional and biological properties and prospective in food applications.

Seaweed polysaccharides are natural biomacromolecules with unique physicochemical properties (e.g., good gelling, emulsifying, and film-forming properties) and diverse biological activities (e.g., anticoagulant, antioxidant, immunoregulatory, and antitumor effects). Furthermore, they are nontoxic, biocompatible and biodegradable, and abundant in resources. Therefore, they have been widely utilized in food, cosmetics, and pharmaceutical industries. However, their properties and bioactivities sometimes are not satisfactory for some purposes. Modification of polysaccharides can impart the amphiphilicity and new functions to the biopolymers and change the structure and conformation, thus effectively improving their functional properties and biological activities so as to meet the requirement for targeted applications. This review outlined the modification methods of representative red algae polysaccharides (carrageenan and agar), brown algae polysaccharides (fucoidan, alginate, and laminaran), and green algae polysaccharides (ulvan) that have potential food applications, including etherification, esterification, degradation, sulfation, phosphorylation, selenylation, and so on. The improved functional properties and bioactivities of the modified seaweed polysaccharides and their potential food applications are also summarized.

Protein-Based Packaging Films in Food: Developments, Applications, and Challenges.

With the emphasis placed by society on environmental resources, current petroleum-based packaging in the food industry can no longer meet people's needs. However, new active packaging technologies have emerged, such as proteins, polysaccharides, and lipids, in which proteins are widely used for their outstanding gel film-forming properties. Most of the current literature focuses on research applications of single protein-based films. In this paper, we review the novel protein-based packaging technologies that have been used in recent years to categorize different proteins, including plant proteins (soybean protein isolate, zein, gluten protein) and animal proteins (whey protein isolate, casein, collagen, gelatin). The advances that have recently been made in protein-based active packaging technology can be understood by describing protein sources, gel properties, molding principles, and applied research. This paper presents the current problems and prospects of active packaging technology, provides new ideas for the development of new types of packaging and the expansion of gel applications in the future, and promotes the development and innovation of environmentally friendly food packaging.

Fabrication and characterization of an alginate-based film incorporated with cinnamaldehyde for fruit preservation

Sodium alginate (SA) is widely used in the food, biomedical, and chemical industries due to its biocompatibility, biodegradability, and excellent film-forming properties. This article introduces a simple method for preparing uniform alginate-based packaging materials with exceptional properties for fruit preservation. The alginate was uniformly crosslinked by gradually releasing calcium ions triggered by the sustained hydrolysis of gluconolactone (GDL). A cinnamaldehyde (CA) emulsion, stabilized by xanthan without the use of traditional surfactants, was tightly incorporated into the alginate film to enhance its antimicrobial, antioxidant, and UV shielding properties. The alginate-based film effectively blocked ultraviolet rays in the range of 400–200 nm, while allowing for a visible light transmittance of up to 70 %. Additionally, it showed an increased water contact angle and decreased water vapor permeability. The alginate-based film was also employed in the preparation of coated paper through the commonly used coating process in the papermaking industry. The alginate-based material displayed excellent antioxidant properties and antimicrobial activity against Escherichia coli, Staphylococcus aureus and Botrytis cinerea, successfully extending the shelf life of strawberries to 7 days at room temperature. This low-cost and facile method has the potential to drive advancements in the food and biomedical fields by tightly incorporating active oil onto a wide range of biomacromolecule substrates.

Microencapsulation of green tea polyphenols: Utilizing oat oil and starch-based double emulsions for improved delivery

The stability and bioavailability of green tea polyphenols, crucial for their health benefits, are compromised by environmental sensitivity, limiting their use in functional foods and supplements. This study introduces a novel water-in-oil-in-water double emulsion technique with microwave-assisted extraction, significantly enhancing the stability and bioavailability of these compounds. The primary objective of this study was to assess the effectiveness of several encapsulating agents, such as gum Arabic as control and native and modified starches, in improving encapsulated substances' stability and release control. Native and modified starches were chosen for their outstanding film-forming properties, improving encapsulation efficiency and protecting bioactive compounds from oxidative degradation. The combination of maltodextrin and tapioca starch improved phenolic content retention, giving 46.25 ± 2.63 mg/g in tapioca starch microcapsules (GTTA) and 41.73 ± 3.24 mg/g in gum arabic microcapsules (GTGA). Besides the control, modified starches also had the most potent antioxidant activity, with a 45 % inhibition (inh%) in the DPPH analysis. Oat oil was utilized for its superior viscosity and nutritional profile, boosting emulsion stability and providing the integrity of the encapsulated polyphenols, as indicated by the microcapsules' narrow span index (1.30 ± 0.002). The microcapsules' thermal behavior and structural integrity were confirmed using advanced methods such as Differential Scanning Calorimetry (DSC) and Fourier-Transform Infrared Spectroscopy (FT-IR). This study highlights the critical role of choosing appropriate wall materials and extraction techniques. It sets a new standard for microencapsulation applications in the food industry, paving the way for future innovations.

Development of a Biopolymer-Based Anti-Fog Coating with Sealing Properties for Applications in the Food Packaging Sector.

The quest for sustainable and functional food packaging materials has led researchers to explore biopolymers such as pullulan, which has emerged as a notable candidate for its excellent film-forming and anti-fogging properties. This study introduces an innovative anti-fog coating by combining pullulan with poly (acrylic acid sodium salt) to enhance the display of packaged food in high humidity environments without impairing the sealing performance of the packaging material-two critical factors in preserving food quality and consumers' acceptance. The research focused on varying the ratios of pullulan to poly (acrylic acid sodium salt) and investigating the performance of this formulation as an anti-fog coating on bioriented polypropylene (BOPP). Contact angle analysis showed a significant improvement in BOPP wettability after coating deposition, with water contact angle values ranging from ~60° to ~17° for formulations consisting only of poly (acrylic acid sodium salt) (P0) or pullulan (P100), respectively. Furthermore, seal strength evaluations demonstrated acceptable performance, with the optimal formulation (P50) achieving the highest sealing force (~2.7 N/2.5 cm) at higher temperatures (130 °C). These results highlight the exceptional potential of a pullulan-based coating as an alternative to conventional packaging materials, significantly enhancing anti-fogging performance.

Strategic design of degradable polyurethanes: Site-specific depolymerization, film-forming behavior, and reprocessability

This paper reports on the rational design of linear sustainable polyurethanes with on-demand depolymerization capabilities and film-forming properties. In this molecular approach, self-immolative urethane motifs are engineered to not only induce rapid degradation in response to an external stimulus via sequential elimination but also provide sufficient inter-chain interactions to yield nanofibers or free-standing films. Amalgamation with various isocyanate or polyol components results in a range of degradable polyurethanes, while doping with europium complexes or carbon black leads to the formation of free-standing hybrid films with photoluminescent or conductive properties, respectively. These films can be reversibly cast using a facile dissolution process, and the predetermined depolymerization products can then be used to generate upcycled materials such as polyurea or polyacrylate films. We believe that our conceptual design for sustainable polyurethanes can be advanced further when combined with conventional engineering techniques to meet industrial and environmental requirements and create desirable materials for contemporary applications.

Portable electrochemical sensing platform based on amidated GO-MOF and PEDOT:PSS for high-efficient detection of ponceau 4R.

Apromising electrochemical sensing platform for the detection of ponceau 4R in food has been fabricated based on the carboxylated graphene oxide (GO-COOH), metal-organic framework (MOF) UIO-66-NH2, and poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). To this endGO-COOH was covalently coupled with UIO-66-NH2 through amide reaction, endowing the material (GO-CONH-UIO-66) unique hierarchical pores and high chemical stability and as a result improving the conductivity of MOF and the dispersion of GO. After the addition of PEDOT:PSS into GO-CONH-UIO-66, the continuity and conductivity of the composite (PEDOT:PSS/GO-CONH-UIO-66) have been further enhanced, due to the high conductivity, favorable film-forming, and hydrophilic properties of PEDOT:PSS. Systematic electrochemical experiments confirm that the PEDOT:PSS/GO-CONH-UIO-66/GCE shows satisfactory electrochemical sensing properties towards the detection of ponceau 4R, with a wide linear detection range of 0.01-30μM, a low limit of detection of3.33nM, and a high sensitivity of 0.606 μA μM-1cm-2. ThePEDOT:PSS/GO-CONH-UIO-66 sensing platform was successfully used to detect ponceau 4R in beverage, and the detection results were compared with high-performance liquid chromatography. As a result, the PEDOT:PSS/GO-CONH-UIO-66 composite shows a promising application prospect for rapid detection of ponceau 4R in food and will play significant role in food safety detection and supervision.

Multiple resonance delayed fluorescence emitter with C3 symmetry for high-performance solution-processed OLEDs

Solution-processed organic materials that exhibit both high emission efficiency and narrowband emission characteristics are rare, and the performance of corresponding solution-processed organic light-emitting diodes (sOLEDs) remains inadequate for practical applications. This study proposes a proof-of-concept design aimed at enhancing both solution processing capability and emission efficiency in multiple-resonance induced thermally activated delayed fluorescence (MR-TADF) materials through the integration of multiple emitting units. A unique emitter named TriBNCz is synthesized and characterized, incorporating three MR-building blocks onto a single phenyl ring, resulting in sky-blue emission with a peak at 490 nm and a small full width at half maximum (FWHM) of 25 nm. Significant improvements in solution processing attributes, including solubility and film-forming properties, are achieved. Moreover, except for the MR effect of the excited states, long-range charge transfer properties of excited states are also obtained. The multiple charge transfer channels contribute to higher rate of reverse intersystem crossing (kRISC). The optimized sOLED device exhibits a maximum external quantum efficiency (EQEmax) of 17.8 %. Furthermore, by employing 5TCzBN as a sensitizer, the sensitized sOLED achieves an EQEmax of 28.8 % and a high-level EQE of 26.1 % at 1000 cd m−2, with an FWHM of 30 nm and Commission Internationale de I’Éclairage (CIE) coordinates of (0.103, 0.497), representing one of the best results among narrowband emission sOLEDs. This research opens a new avenue to develop high-performance solution-processed organic materials and sOLED devices.

Precisely Controlling Polymer Acceptors with Weak Intramolecular Charge Transfer Effect and Superior Coplanarity for Efficient Indoor All-Polymer Solar Cells with over 27% Efficiency.

Indoor photovoltaics (IPVs) are garnering increasing attention from both the academic and industrial communities due to the pressing demand of the ecosystem of Internet-of-Things. All-polymer solar cells (all-PSCs), emerging as a sub-type of organic photovoltaics, with the merits of great film-forming properties, remarkable morphological and light stability, hold great promise to simultaneously achieve high efficiency and long-term operation in IPV's application. However, the dearth of polymer acceptors with medium-bandgap has impeded the rapid development of indoor all-PSCs. Herein, a highly efficient medium-bandgap polymer acceptor (PYFO-V) is reported through the synergistic effects of side chain engineering and linkage modulation and applied for indoor all-PSCs operation. As a result, the PM6:PYFO-V-based indoor all-PSC yields the highest efficiency of 27.1% under LED light condition, marking the highest value for reported binary indoor all-PSCs to date. More importantly, the blade-coated devices using non-halogenated solvent (o-xylene) maintain an efficiency of over 23%, demonstrating the potential for industry-scale fabrication. This work not only highlights the importance of fine-tuning intramolecular charge transfer effect and intrachain coplanarity in developing high-performance medium-bandgap polymer acceptors but also provides a highly efficient strategy for indoor all-PSC application.

Film-Forming Property of Cement Paste with Red Mud as a Supplementary Cementitious Material

Film-Forming Property of Cement Paste with Red Mud as a Supplementary Cementitious Material

High-Performance Nanocellulose-Based Ionic Electroactive Soft Actuators

High-performance electroactive polymer actuators with large bending, fast response, and high durability have gained attention in the development of micromanipulators and multifunctional bionic soft robots. Herein, we developed high-performance electroactive soft actuators fabricated with ultrathin free-standing microfibrillated cellulose (MFC)-reinforced poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS) with multi-walled carbon nanotube (MWCNT)-doped composite electrode films and ion-exchange Nafion membranes by a hot-pressing method. The prepared PEDOT/PSS-MFC-MWCNT electrodes have good film-forming properties with a Young’s modulus of 448 MPa and an electrical conductivity of 75 S/cm. The proposed PEDOT/PSS-MFC-MWCNT/Nafion soft actuators have a sustained peak displacement of 2.1 mm and a long-term cyclic stability of 94% with no degradation over 1 h at 1.0 V, 0.1 Hz. Furthermore, we fabricated soft micro-grippers based on the actuators for mimicking actual finger actions for grasping, pointing, and counting, which introduces new possibilities for the next-generation development of micromanipulators and bionic soft robotics.

A novel bio-based film-forming helper derived from Leuconostoc mesenteroides: A promising alternative to chemicals for the preparation of biomass film

Some microorganisms produce biopolymers with adhesive, film-forming, and plant-promoting properties in their fermentation broths. These biopolymers hold significant potential as substitutes for chemical film-forming helpers in liquid mulch. The present study involved the preparation of a novel bio-based film-forming helper (BFH-L) through the process of bio-fermentation utilizing Leuconostoc mesenteroides. The successful preparation of BFH-L was confirmed through the assessment of adhesive properties and plant growth-promoting efficacy exhibited by L. mesenteroides and BFH-L. The comprehensive genomic analysis of L. mesenteroides provided compelling evidence supporting the effectiveness of BFH-L, which can be attributed to the functional contribution of genes encoding extracellular glycoside polymers from L. mesenteroides. Through the evaluation and comparison of a triangle model, BFH-L can effectively replace chemical film-forming helpers in the preparation of biomass film (BF). The optimal performance of BF was achieved when 3.0 g/600 mL of BFH-L and 30 g/600 mL of cow dung were added. BF exhibited exceptional water retention ability (water loss: 38.00 ± 3.46 %), superior plant growth promotion effect (germination rate: 100.00 ± 0 %, plant growth: 0.34 ± 0.03 g), and minimal environmental impact (pH value = 8.7). This research provides a new strategy for reducing plastic film pollution while achieving green recycling of organic solid waste from agriculture and animal husbandry.

Hyaluronic acid-based multifunctional bio-active coating integrated with cinnamaldehyde/hydroxypropyl-β-cyclodextrin inclusion complex for fruit preservation

Natural preservatives such as cinnamaldehyde (CIN) are garnering increasing interest to replace their synthetic counterparts in maintaining fruit freshness and safety. However, their long-term effectiveness and widespread application have been greatly limited due to high volatility and potent aroma. To address these challenges, we developed a viable and simple strategy to prepare a multifunctional active coating for fruit preservation by incorporating host-guest inclusion complex of CIN and 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) CIN@HP-β-CD into hyaluronic acid (HA), a natural polysaccharide with exceptional film-forming properties. The as-prepared HA/CIN@HP-β-CD coatings exhibited universal surface affinity, excellent antimicrobial performance, and satisfactory antioxidant properties with no potential toxicity. Release kinetic studies have demonstrated that CIN in the coating is continuously and slowly released. Furthermore, freshness preservation experiments on bananas and fresh-cut apples demonstrated that the developed coating is effective in preserving the color of fruit, decreasing the weight loss rate, preventing the microorganism's growth, and significantly extending the period of freshness, exhibiting the potential for application in fruit preservation.