Utilization Rate Of Materials Research Articles

Research on the Influencing Factors for the Use of Green Building Materials through the Number Growth of Construction Enterprises Based on Agent-Based Modeling

As the concept of green building is increasingly promoted worldwide, the use of green building materials has also attracted great attention. In order to improve the utilization rate of green building materials in construction projects, this paper tries to explore influencing factors based on the method of agent-based modeling (ABM), which is well-suited to the study of complex systems and their emergent behaviors. There are two types of agents being set, named, respectively, greedy construction enterprises and selective construction enterprises. Meanwhile, the construction unit’s intention to use green building materials is treated as the criterion. Two types of construction enterprises compete for projects to obtain profits. In order to reveal the mechanism of the evolutionary path of the macro system, the movement step, project unit profit, project cost and expansion cost are adopted as the independent variables and the number of enterprises is the dependent variable. Then, the experiment was performed with the NetLogo simulation platform. The simulation results show that, it is not beneficial for the selective construction enterprises when the movement step in selecting projects is too long and the project units are too profitable. However, when the project cost and expansion cost become higher, there is a significant advantage for selective construction enterprises to go for a long-term development. Therefore, after a comprehensive evaluation of project costs and unit profits, an optimal strategy can be formulated to ensure the quantitative scale of construction enterprises in the construction industry. This behavior can indirectly improve the intention of construction units to use green building materials and further promote the utilization rate of green building materials.

Towards the sustainable fine control of microbially induced calcium carbonate precipitation

Microbially induced calcium carbonate precipitation (MICP) has been proposed as a potential solution to address many environmental and engineering issues. However, how to quantitatively and accurately control this novel biological cementation technology is still a major challenge. This study designed a factorial test, a verification test and an application test to provide theoretical basis for fine control of MICP. We have systematically monitored and analyzed the changes of proteins and polysaccharide, pH, electrical conductivity (EC), and zeta potential of the precipitation environment, and tracked the particle size distribution and microstructures of bio-cements from beginning to end. Based on the laboratory investigations, we discovered the particle size of the precipitations showed distinct features based on the analysis of physicochemical indicators, and a model for fine control of particle size of bio-cements was proposed. Further, the validation test was completed by “factory on a chip” technology. We successfully realized the production of pre designed particle sizes, the robustness of our model and the mechanism of particle formation were verified. Finally, we designed a three-stage cementation strategy for the application test of bio-cement bonded glass beads columns. The fine control cementation strategy has a higher utilization rate of raw materials and can provide twice the cementation strength compared with the reference test. The results show that our proposed model makes an important step forward in the direction of optimized application of bio-cements, which may be used as a process control standard to promote environment-friendly and sustainable MICP.

A digital twin-based multi-objective optimization method for technical schemes in process industry

ABSTRACT To solve problems of technical objective conflicts, untimely feedback, and inaccurate decision making, a multi-objective optimization method was developed for technical schemes in process industry based on digital twin. According to actual requirements, a multi-objective optimization problem was established with key technical parameters and constraints determined. A digital twin model was built to achieve a real-time interaction between physical and virtual production systems and assist in optimization. For optimization efficiency and adaptability to different working conditions, a dynamic acquisition function-based Bayesian method was adopted to fit original complicated functions and obtain Pareto optimal solutions. A rapid decision-making was carried out by comprehensively utilizing dynamic parameter set correlation evaluation, entropy weight method, and technique for order preference by similarity to ideal solution. A typical case study of optical fiber preform drawing process was presented to prove the method effectiveness. Results demonstrated that the proposed method was valuable for actual application with better product quality (an improvement by 0.71% for preform rod diameter precision control), higher utilization rate of raw materials (an increase by 3.64%), and lower total energy consumption (a reduction by 4.37%).

Low-temperature vacuum deposition of green phosphorescent OLED devices using close-space sublimation of spirobifluorene hosts

Commercial organic light-emitting diode (OLED) displays are mainly produced by line-of-sight vacuum thermal evaporation (VTE) methods that operate at high temperatures with low material utilization, exerting thermal stress on shadow masks and driving up costs. Further advancement of OLED displays towards higher resolutions at reduced cost demands more efficient deposition sources and OLED materials that can be reliably evaporated at low temperatures. In this study, we utilized close-space sublimation (CSS), an area deposition technique with a high material utilization rate, to lower the evaporation temperature of materials and deposition time drastically. By employing a spirobifluorene-based host that has a matching CSS profile with common iridium-based dopants, we have successfully reduced the evaporation temperature of the emitting layer (EML) to as low as 120 °C in CSS, less than half of the temperature required in VTE, and shortened the deposition time from minutes to seconds. The CSS-deposited green phosphorescent OLEDs exhibited comparable efficiencies with their VTE-deposited counterparts and demonstrated promising lifetimes.

Energy Absorption Characteristics of Bio-Inspired Honeycomb Column Thin-Walled Structure under Low Strain Rate Uniaxial Compression Loading

The beetle’s elytra have the characteristics of light weight and high energy absorption (EA). In this paper, based on the internal structure of beetle elytra, two bio-inspired honeycomb column thin-walled structures (BHTS) I and II were fabricated by selective laser melting (SLM) technology in additive manufacturing (AM) in order to understand the possible influence of strain rate effect (SRE) on the BHTS under low speed uniaxial compression loading. The influence of three different SREs (0.001 s−1, 0.01 s−1 and 0.1 s−1) on the EA of BHTSs specimens during loading was discussed by means of out-of-plane uniaxial compression tests verified with numerical simulations. The experimental results show that SRE has a significant effect on the EA of BHTSs in low speed out-of-plane uniaxial compression tests: SRE can significantly increase the initial peak crushing force (PCF) and specific energy absorption (SEA) of all types of BHTS specimens. The average increase in PCF/SEA under SRE loading of 0.1 s−1 is 12.70%/9.79% and 17.63 %/11.60%, respectively, compared with 0.001 s−1 and 0.01 s−1. These research methods reduce the use of materials and improve the utilization rate of materials, which can provide important assistance for the design, manufacture and modeling of AM-based materials.

Novel dual-platform lightweight metamaterials with auxeticity

Auxetic materials and structures have received extensive attention due to their unusual behavior. As one of the structures that can realize the auxetic effect, the elliptic perforated structure has been recently developed, but the previous research on the elliptic perforated is limited to the small deformation stage. At the end of the small deformation stage, the elliptic perforated structure becomes dense and loses the auxetic effect. The available compression stroke is very short and therefore the structure has relatively lower specific energy absorption (SEA). In order to make better use of material, through the buckling of lightweight perforated plates, a newly designed re-entrant elliptical perforated structure is proposed in this work. The re-entrant cells rotate and move inward (the first stage), and finally be compressed by neighbor ones (the second stage). Therefore, the structure undergoes rotational deformation in stage one same as previous perforated plates but specific re-entrant deformation in the second stage, thereby realizing the auxeticity in large deformation. Experimental and numerical results show that the stress–strain curve exhibits double platforms, and the novel structure possesses the auxetic effect throughout the whole compression process. Subsequently, a parametric analysis of the re-entrant distance and the ratio of horizontal and vertical wall thickness was carried out for obtaining greater auxetic effect and better stability of the novel re-entrant elliptic perforated structure. The material utilization rate of the re-entrant elliptic perforated plate was greatly improved, and the application prospect of the re-entrant elliptic perforated was also discussed.

The effect of biomass raw material collection distance on energy surplus factor.

The collection radius of biomass raw materials is an important factor affecting the volume of raw materials for energy utilization. At present, it is usually studied based on a single biomass combined heat and power (CHP) plant. However, as the heat transfer threshold of biomass CHP plant is limited, it is necessary to consider the optimal collection radius and biomass raw material allocation under the distribution mode of multiple power plants to improve the overall utilization rate of raw materials. Biomass raw material collection distance threshold (BCDT) refers to the maximum road length between the resource point (that allows the transportation of raw materials to the biomass CHP plant) and the biomass CHP plant. Under the mode of multi-power plant planning, the greater the BCDT is, the more destinations there will be for raw materials to be transported to from the same resource point, and the more flexible the transportation plans and allocation of transportation volumes will be. This also means more raw materials can be ultimately used for energy utilization, which leads to higher transportation cost. Therefore, determining the appropriate BCDT plays a key role in the unified planning of biomass raw materials. Based on the limitation of heat transfer threshold, this paper carries out multi-power plant planning with Fuxin City as the research object. Based on such planning, ArcGIS is used to generate biomass raw material planning schemes with different BCDTs. Then the transportation cost and energy surplus factor (ratio of renewable resource potential to energy demand) of each scheme are calculated and compared. The results show that there is a positive correlation between BCDT and the energy surplus factor. With the increase of BCDT, the growth rate of the energy surplus factor gradually becomes slower. The study also allows to set the utilization threshold of biomass energy utilization capacity and obtain the corresponding BCDT. In order to achieve a higher energy surplus factor, it is recommended that 40km be used as the BCDT when carrying out uniform planning for biomass raw materials. At this time, the utilization of biomass energy utilization capacity is 75%, which can achieve a high degree of energy self-sufficiency and ensure its economic competitiveness.

Zinc‐ion hybrid supercapacitors: Design strategies, challenges, and perspectives

AbstractZinc‐ion hybrid supercapacitors (ZHSCs) may be the most promising energy storage device alternatives for portable and large‐scale electronic devices in the future, as they combine the benefits of both supercapacitors and zinc‐ion batteries. Even though many surprise outcomes have been accomplished with ZHSCs, the creation of suitable cathode materials and electrolytes, as well as the enhancement of zinc anodes, continue to be the most difficult obstacles in the development of high‐performance ZHSCs. The low capacitance of the cathode material, poor stability, and low utilization rate of the zinc anode seriously affect the electrochemical performance and application of ZHSCs. Furthermore, parasitic processes in aqueous electrolytes, such as the hydrogen and oxygen evolution reactions might result in low‐voltage windows and unsatisfied cycling performance of the ZHSCs. This review provides a concise summary of the most recent developments and energy storage mechanisms in ZHSCs. Meanwhile, the cathode material design strategy (structural engineering, hybrid‐composite design, heteroatom doping, and so on), the zinc anode design strategy (zinc foil improvement, zinc‐free metal composites, and so on), and the structure–activity relationship of the electrochemical performance of ZHSCs are discussed. Additionally, a summary of the impact of modifications in electrolyte composition on the electrochemical performance of ZHSCs is provided. Finally, this review also discusses the future development direction of ZHSCs. It is anticipated that this evaluation will serve as a helpful reference for the creation of high‐performance ZHSCs, which will hasten the development of these devices.

Symmetry and Its Application in Metal Additive Manufacturing (MAM)

Additive manufacturing (AM) is proving to be a promising new and economical technique for the manufacture of metal parts. This technique basically consists of depositing material in a more or less precise way until a solid is built. This stage of material deposition allows the acquisition of a part with a quasi-final geometry (considered a Near Net Shape process) with a very high raw material utilization rate. There is a wide variety of different manufacturing techniques for the production of components in metallic materials. Although significant research work has been carried out in recent years, resulting in the wide dissemination of results and presentation of reviews on the subject, this paper seeks to cover the applications of symmetry, and its techniques and principles, to the additive manufacturing of metals.

Study on Deposition Conditions in Coupled Polysilicon CVD Furnaces by Simulations

Electronic-grade polysilicon is the cornerstone of the information industry. Considering the demand for this material in the semiconductor industry, any technological improvement has great potential benefits. Due to the quality requirements of electronic polysilicon, its preparation process is characterized by low raw material utilization and high cost. Simply increasing the deposition rate by increasing the chemical reaction rate will easily lead to a reduction in the proportion of dense materials. For the first time, a coupled furnace scheme is proposed to improve the utilization of raw materials while maintaining the same deposition quality. The deposition conditions on the surface of silicon rods with different base plate designs were modeled and analyzed using the software PolySim, and a design characterized by a high flow rate and the use of 9 mm and 15 mm nozzles was selected for the coupling scheme. In coupling mode, the simulation results show that the utilization of raw materials is increased by 17.5%, and the deposition rate is increased by 44.9%, while the deposition quality and uniformity remain approximately unchanged. The results show that the coupling scheme with high feed flow is beneficial for significantly improving the deposition conditions and the utilization rate of raw materials, which also provides guidance for material preparation processes with similar principles.

Construction of vinyl ester resins composite coatings via introducing silane-functionalized graphene oxide for enhancing comprehensive performance

Vinyl ester resins (VERs) are often used as anti-corrosive coating due to their high curing speed and good mechanical property in most industrial fields. However, many small holes can be formed during the curing process of these resins, resulting in they are not suitable for heavy anti-corrosion applications. Herein, approximately 100% utilization rate of raw materials and solvent-free polyfunctional acrylates (AGO-VERs) with excellent anti-corrosive properties are synthesized by crosslinking VERs with silane decorated graphene oxide (AGO) using toluene diisocyanate as the crosslinking agent. Compared with GO-VERs, AGO-VERs show better dispersibility and higher degree of peeling in the resin systems. Furthermore, the cured coating containing AGO-VER-6 exhibits the maximum tensile strength (80.73 MPa), flexural strength (178.58 MPa), Young's modulus (669.53 MPa) and impedance modulus (2.43 × 108 Ω cm2 after soaking for 7 d). Finally, the possible corrosion protection mechanism of the modified VERs is clarified. Results demonstrate a simple and efficient approach for covalently combining VERs with GO well, which can achieve long-term corrosion protection of metal substrates in the field of heavy anti-corrosive coatings.

Argon-Assisted Spray-Coating Induced Efficient and Stable MAPbI3 Perovskite Solar Cells

Due to toxic antisolvents, low material utilization rate, and limitations in scalable fabrication, the spin-coating method is unsuitable for the practical application of perovskite solar cells (PSCs). This work reports an argon-assisted spray-coating process for fabricating mesoporous MAPbI3 PSCs in ambient air. We obtained pinhole-free and uniform perovskite films by optimizing the nucleation and crystallization. The optimal device’s power conversion efficiency (PCE) reached 16.34% with long-time shelf stability.

Investigation of Utilizing Industrial Waste Residue Proportion on Concrete Structure: Computer Finite Element Analysis.

To study the influence of different proportions and amounts of admixtures on the structural performance of concrete, increase the utilization rate of waste material, and finally reduce the cost and environmental pollution, a computer-based finite element analysis method is proposed to investigate the structural performance of concrete composing of waste residue. Firstly, the available types of industrial waste residue and their application in concrete cementitious materials are researched. Secondly, the fly ash in the industrial waste residue is utilized as an example to design an experiment composed of material selection and mixed design set up to determine factors. Finally, the finite element analysis method is proposed and conducted. This model is employed to calculate early shrinkage stress and temperature deformation of concrete with varying contents of fly ash. The results suggest that when the content of fly ash reaches more than 40%, the compressive strength of concrete decreases gradually with the increase of the content, and the decrease is consistent with the increase of the content. Besides, different amounts of fly ash have a certain effect on the hydrated reaction and stress reduction of concrete. The effect becomes more obvious when an increase in dosage is observed.

Modeling analysis on the cooling efficiency of composite phase change material-heat pipe coupling system in battery pack

Phase change material (PCM) cooling has attracted great attention in battery thermal management applications due to its compact structure and large latent heat of phase change. This study constructs a thermal management system consisting of the paraffin/copper foam metal composite phase change material and heat pipe. The accuracy of the simulation model is verified by comparing the experimental data. Numerical simulations are performed on the operating voltage and temperature of lithium-ion battery packs under different charging rates and ambient temperatures. The results show that copper foam-paraffin composite phase change material has the advantage of high thermal conductivity. The heat pipe can disperse heat in time to ensure the temperature uniformity of the module.Compared with different thermal management systems, the study found that the system can control the module temperature rise and temperature difference at 5 °C and 0.7 °C when charging at 1C in a high-temperature environment. The cooling efficiency of the composite PCM-heat pipe coupling system is more efficient than that of natural cooling and composite PCM cooling. Through simulation verification, the system can meet the working requirements of modules under different environments and different charging rates. However, under the dual conditions of high temperature and high rate, refrigeration or liquid cooling coupling should be considered to assist management in the future. In addition, this paper studies the influence of the size change of center distance between cells on system performance. It is believed that reducing the Y space appropriately is beneficial to saving cost and improving energy density, but excessively reducing the X space will make the module temperature rise and temperature difference change greatly. To meet the dual requirements of material utilization rate and temperature control management, a more suitable size range is given.

Sustainable Development According to Resource Productivity in the EU Environmental Policy Context

The constant rise in the consumption of resources puts the environment under pressure. Most resources are non-renewable in nature, which is why they must be utilized with great care. For this reason, the European Union devotes increasingly more attention to their efficient use. It deals with these aspects, making an effort to maintain the long-term competitiveness and to secure sustainable development in line with all of the related environmental impacts. In this context, several goals have been set out, to which the individual EU member states are bound. A method for monitoring resource efficiency was developed, consisting of indicators, the aim of which is to assess the efficiency of the use of soil, water, energy, with the most fundamental one being resource productivity. The results of the efficiency of use of the individual resources in the member states greatly differ, even without further investigating the links and correlations between the indicators. Research on the interrelationships of the individual indicators in terms of mutual influence has not yet been completed. The aim of our study was to define the correlation between the main indicator, resource productivity, and the other indicators at the level of the EU and its member states. For this purpose, we prepared a database with data which, for the sake of uniformity, were obtained from the publicly available Eurostat database. Subsequently, the data were analyzed and evaluated using the statistical software JMP 15 by a regression and correlation analysis. By using the multiple regression analysis, we created a model describing the significance of the impact of the observed variables on the resulting resource productivity of the EU member states. Generally, there is a positive correlation between the resource productivity and the Eco-Innovation index, as well as the utilization rate of recycled materials. For the sake of comparison, we developed a regression model at the level of the V4 countries, with the aim of evaluating the impact of the historical background of the countries on their contemporary ability to reach the goals set out by the environmental policy. The V4 countries are lagging far behind in meeting all of the environmental policy objectives, not only in tracking the main indicator (resource productivity) on which the multiple regression analysis is based. It was interesting to find that the multiple regression model at the V4 level does not include the indicators defined by the EU level model, the key ones, in this case, being water productivity, energy dependence, energy productivity, and environmental tax. This finding may also, after further analyses, be the key for other countries joining the EU in the future, in defining the weaknesses of the newly acceding states in terms of the EU’s move towards a circular economy.

A novel ecological, highly-utilizable manufacturing technology for standard bamboo units and its deformation laws

Equal-arc shaped bamboo split (EASB) is an ecological material, and the material utilization rate is as high as 85%. With EASB as the basic unit, various arc-shaped products can be manufactured widely. EASB cleverly uses the indispensable drying process in the bamboo industry to manufacture. The bamboo splits deformation mainly undergoes two processes: uniform heating to complete softening and rapid deformation. After the arc is fixed, a wider arc-shaped bamboo split is obtained, with a width up to 100 mm. The sclerenchyma fibers showed displacement along the tensile stress direction, and the distance between vascular bundles was slightly reduced. The parenchyma’s cell wall-to-lumen area ratio was reduced by 19.4%, and cracks and plastic deformation appeared in the cell wall slippage, but there is no evident densification in the bamboo split. EASB overcomes the challenge of use in standard arcs due to its different shapes, while retaining the natural texture and gradient structure of bamboo. Analyzing the deformation in the EASB manufacturing process is beneficial to understanding the EASB deformation law. Moreover, it provides a basis for the later EASB manufacturing process with different radians and biomass biomimetic materials.

Performance of corrosion inhibitor extracted from enzymatic hydrolysate of waste Platanus acerifolia leaves

In this study, an ultrasound-assisted enzymatic extraction (UEE) method was proposed to augment the anti-corrosion performance of the green inhibitor extracted from waste Platanus acerifolia leaves. Chemical compositions and anticorrosive properties of UEE extract were characterized via multiple technologies. The adsorption film on the steel surface was characterized via X-ray photoelectron spectroscopy (XPS). The surface information of corroded steel was also analyzed. Results showed that, compared with the ultrasound-assisted alkali extraction (UAE), UEE increased the utilization rate of raw plant materials by 22%∼39%. After optimized via response surface methodology, the maximum yield of UEE extract could reach 27.081 mg/g. Electrochemical results showed, compared with 3% UAE extract, the inhibition efficiency of 3% UEE extract after 72 h in 0.5 M NaCl was increased by 22% while the extraction time was saved by 90%. Microscopic observations also proved that UEE extract can effectively mitigate the corrosion degree where the roughness of steel surface decreased by 63.67%. XPS results revealed that a carbonaceous protecting layer was formed on steel surfaces. The inhibition mechanism analysis suggested that flavonoids and their derivatives were apt to adsorb on the steel surface via chelation and surface physical adsorption, which could block the pathway of chloride attack.

Research on the Mining of Intangible Cultural Heritage Digital Resources in the Manual Online Teaching System of Preschool Education.

Our country's international status as a cultural power has been further enhanced, and the protection of intangible cultural heritage containing the essence of traditional culture is also gradually being carried out. In addition, with the rapid development of the digital environment, the public's cultural needs continue to grow, and the contradiction between the supply and demand of public digital cultural services continues to intensify. Converting intangible cultural heritage into digital form for protection and providing resource services for the public has become an important trend in the protection and inheritance of intangible cultural heritage at home and abroad, and it is also an inevitable requirement to solve the contradiction between supply and demand. Improving public cultural services is one of the key projects. At present, our country's research and practice of intangible cultural heritage digitization and services are also in progress, but there is no research on intangible cultural heritage digital resource services and system construction from the perspective of information service elements. Based on the digital resource service of intangible cultural heritage, the manual course is one of the main skill courses for preschool education majors. At this stage, the short class hours of manual courses, the lack of class hours, the low utilization rate of teaching materials, and the disconnection between the content and the needs of the kindergarten are all problems that need to be solved at present. Just relying on cross-references between schools, the manual knowledge and skills mastered by graduates are not comprehensive enough to complete the manual tasks assigned by the kindergarten. This paper implements the concept of intangible cultural heritage and hopes that by studying the manual knowledge and skills that today's kindergarten teachers need to possess, the content of existing manual courses can be adjusted in a targeted manner, so that the electronic culture dissemination of manual curriculum resources for preschool education is more reasonable, meeting the requirements of kindergarten teachers in terms of manual knowledge and skills.

Compound Boronizing and Its Kinetics Analysis for H13 Steel with Rare Earth CeO2 and Cr2O3

The compound boronizing of H13 steel sample was carried out by adding rare earth CeO2, and the effects of main parameters of compound boronizing on the properties of the boronizing layer were investigated. The boronizing kinetics were also analyzed. Under the conditions of boronizing temperatures of 850 °C, 900 °C, 950 °C, and 1000 °C, and boronizing times of 2 h, 3 h, 4 h, and 5 h, the boronizing experiment was carried out by adding CeO2 with mass fraction of 2%, 4% and 6%, Cr2O3 with a mass fraction of 1%, 2%, 3%, and 4%. The results show that boronizing H13 steel with rare earth CeO2 is conducive to the diffusion of boron atoms and can significantly improve the thickness and microhardness of boronizing layer. Boronizing kinetic analysis shows that the diffusion activation energy of boron atom decreases significantly when the rare earth content is 4%, which indicates that the content of rare earth CeO2 with 4% is an ideal selection for considering improving the utilization rate of rare earth materials, and the boronizing kinetic analysis can provide a quantitative basis for determining the content of rare earth metals. Therefore, experiments and analysis show that for H13 steel, when the boronizing temperature is 950 °C, time is 4 h and rare earth content is 4%, the thickness of the boronizing layer can reach 71 μm and the microhardness at the depth of 70 μm from the surface layer can reach 1546.32 HV. Moreover, on this basis, when Cr2O3 with a rare earth content of 2% is added, the microstructure and wear resistance of the boronizing layer are significantly improved.

A consecutive extraction of pectin and hesperidin from Citrus aurantium L.:Process optimization, extract mechanism, characterization and bio-activity analysis

With the proposal of the Paris Climate Agreement and double carbon policy, production enterprise is now facing green and low-carbon transformation. To promote green and low-carbon development, optimizing the production process and improving utilization rate of raw materials for the reduction of production cost is an significant technological path for the plant extract industry. Thus, the aim of this work was to develop a consecutive extraction process of pectin and hesperidin with lower cost and higher purity, as well as better properties of extract. The process parameters will be put forward through single-factor experiments, Plackett-Burman design and Box-Behnken design. The experimental results showed that the consecutive extraction process was effective and feasible. Pectin with excellent properties was obtained, and the solid-liquid ratio of extraction process parameters of hesperidin was reduced to 1:8 (g: mL). The problems of environmental pollution and high energy consumption in traditional extraction could be solved. The consecutive extraction process, an innovative, economic and environmental-friendly process, may be realized easily in industrial application. At the same time, the consecutive extraction process mechanism was revealed with the help of microscopy analysis of the plant tissue structure. The results demonstrated that preferential extraction of pectin process was helpful for the exposure and dissolution of hesperidin crystallization in cells and thus can improve extraction efficiency of hesperidin. The purity of the obtained hesperidin was up to 91.7%, which can be further purified depending on application requirements. A large amount of pectin was obtained (23.3% ± 0.5% yield), and the pectin has superior gel-property, strong antioxidant activity and certain antibacterial activity. The pectin and hesperidin obtained will have better application prospects in medicine and food because of their unique characteristics.