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Research on Purification Process and Pharmacological Action of Andrographolide
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作者 Changtao CAI Wenshuang HOU +3 位作者 Quan QUAN Jingchao WANG Mingxinzhi WANG Chenghao JIN 《Medicinal Plant》 2024年第5期13-16,共4页
This paper reviews the purification process,content determination methods and pharmacological action of Andrographolide,aiming to provide new ideas for the subsequent study of Andrographolide and its related drug deve... This paper reviews the purification process,content determination methods and pharmacological action of Andrographolide,aiming to provide new ideas for the subsequent study of Andrographolide and its related drug development and application. 展开更多
关键词 ANDROGRAPHOLIDE purification process Content determination Pharmacological action
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Purification Process and Biological Activity of Daphnoretin
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作者 Jinglong CAO Jian LIU +3 位作者 Yannan LI Hui XUE Yinghua LUO Chenghao JIN 《Plant Diseases and Pests》 CAS 2023年第1期34-36,共3页
Daphnoretin,belonging to coumarin compounds,is the main active ingredient of Wikstroemia indica,and has anti-inflammatory,anti-depression,anti-tumor and other pharmacological activities.This article reviews the extrac... Daphnoretin,belonging to coumarin compounds,is the main active ingredient of Wikstroemia indica,and has anti-inflammatory,anti-depression,anti-tumor and other pharmacological activities.This article reviews the extraction and purification process,content determination methods and pharmacological activity of daphnoretin,in order to provide a theoretical reference for optimization of purification process,improvement of content determination technique and further clinical application of daphnoretin. 展开更多
关键词 DAPHNORETIN purification process Content determination Pharmacological activity
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Purification Process,Content Determination,Pharmacological Activity and Molecular Mechanism of Neogambogic Acid
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作者 Tong ZHANG Jinglong CAO +3 位作者 Wenshuang HOU Anqi WANG Yinghua LUO Chenghao JIN 《Plant Diseases and Pests》 CAS 2023年第2期32-35,共4页
Neogambogic acid is characterized by broad antitumor spectrum,good antitumor effect and low toxicity and side effects.This paper reviews the purification process,content determination and pharmacologic activity of neo... Neogambogic acid is characterized by broad antitumor spectrum,good antitumor effect and low toxicity and side effects.This paper reviews the purification process,content determination and pharmacologic activity of neogambogic acid,in order to provide a theoretical reference for the research and application of neogambogic acid. 展开更多
关键词 Neogambogic acid purification process Content determination Pharmacological activity
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Research Progress on Purification Process Optimization and Content Determination of Zeaxanthin
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作者 Jian LIU Jinglong CAO +3 位作者 Hui XUE Yannan LI Wenshuang HOU Chenghao JIN 《Asian Agricultural Research》 2023年第3期37-39,46,共4页
At present,the purification process of zeaxanthin mainly includes organic solvent extraction,ultrasonic-assisted extraction and enzyme extraction,and the content determination technology mainly includes ultraviolet-sp... At present,the purification process of zeaxanthin mainly includes organic solvent extraction,ultrasonic-assisted extraction and enzyme extraction,and the content determination technology mainly includes ultraviolet-spectrophotometry and high performance liquid chromatography.In this paper,the purification process and content determination technology of zeaxanthin in recent years are reviewed in order to provide ideas and theoretical basis for further research and application of zeaxanthin. 展开更多
关键词 ZEAXANTHIN CAROTENOID purification process Content determination
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Low-temperature purification process of metallurgical silicon 被引量:8
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作者 赵立新 王志 +1 位作者 郭占成 李成义 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第5期1185-1192,共8页
The removal of B and P consumes most of heat energy in Si metallurgical purification process for solar-grade Si. Metal-liquating purification of metallurgical grade silicon (MG-Si), also called Si-recrystallization ... The removal of B and P consumes most of heat energy in Si metallurgical purification process for solar-grade Si. Metal-liquating purification of metallurgical grade silicon (MG-Si), also called Si-recrystallization from metal liquid, was a potential energy-saving method for the removal of B and P efficiently, since Si could be melted at lower temperature by alloying with metal. The selection criteria of metal-liquating system was elaborated, and Al, Sn and In were selected out as the optimum metallic mediums. For Sn-Si system, the segregation coefficient of B decreased to 0.038 at 1 500 K, which was much less than 0.8 at the melting point of Si. The mass fraction of B was diminished from 15×10^-6 to 0.1×10^-6 as MG-Si was purified by twice, while that of most metallic elements could be decreased to 0.1×10^-6 by purifying just once. During the metal-liquating process, the formation of compounds between impurity elements and Si was also an important route of impurity removal. Finally, one low-temperature metallurgical process based on metal-liquating method was proposed. 展开更多
关键词 metal liquating method metallurgical purification process tin-silicon system solar grade silicon
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Melting purification process and refining effect of 5083 Al-Mg alloy 被引量:2
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作者 马成国 亓淑艳 +2 位作者 李双 胥焕岩 何秀兰 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第5期1346-1351,共6页
To improve the poor stability of casting process of Al alloy with high Mg content, which leads to poor final product quality, the melting purification process and the influences of the refiner on the microstructure an... To improve the poor stability of casting process of Al alloy with high Mg content, which leads to poor final product quality, the melting purification process and the influences of the refiner on the microstructure and defect of 5083 alloy were studied. The results show that the optimized process for the rotary impeller degassing of 5083 alloy is as follows: a rotary speed of 250-400 r/min; a gas flow of 1.2-2.0 L/s, a refining time of 10-15 min. This optimized process can reduce the gas content in the solid alloy to 2× 10^-3 mL/g or lower. Due to the addition of grain refiner, the cast microstructure of 5083 alloy is refined. The Al-5Ti-IB wire shows the best refining effect among all the refiners. The refining effect is improved with the increase of grain refiner addition amount. And the refinement effects become stable when Ti content reaches 0.1% or higher. The surface crinkling defect of the billet can be easily found in the alloy refined with Al-5Ti-IB wire compared with the alloys refined with other refiners. 展开更多
关键词 Al-Mg alloy MELTING purification process grain refiner
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Purification process of coal-based coke powder as anode for Li-ion batteries 被引量:3
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作者 杨娟 马路路 周向阳 《Journal of Central South University》 SCIE EI CAS 2014年第3期857-861,共5页
A process of purification of coal-based coke powder as anode the treatment of coke powder with dilute hydrofluoric acid solution, for Li-ion batteries was attempted. The process started with followed by united-acid-le... A process of purification of coal-based coke powder as anode the treatment of coke powder with dilute hydrofluoric acid solution, for Li-ion batteries was attempted. The process started with followed by united-acid-leaching using sulfuric acid and hydrochloric acid. The effects of altering the hydrofluoric acid addition, hydrofluoric acid concentration, contact time, temperature and acid type were investigated. A minimum ash content of 0.35% was obtained when proper conditions were applied. The electrochemical performance of purified coke powder shows greatly improved electrochemical performance. The as-purified coke powder presented an initial reversible capacity of 257.4 mAh/g and a retention rate of 95% after 50 cycles. The proposed purification process paves a way to prepare a promising anode material with good performance with low cost of coke powder for Li-ion batteries. 展开更多
关键词 purification process coal-based coke powder anode material Li-ion batteries
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Separation and Purification Process of Total Flavones from Litchi Pericarp by Macroporous Absorption Resin
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作者 TU Hua CHEN Biqiong ZHOU Xilan 《Chinese Food Science》 2012年第1期20-22,共3页
[ Objective] This study aimed to optimize the conditions for purification of total flavones from litchi pericarp by macroporous absorption resin. E Method] The flavones adsorption rates and desorption rates of macropo... [ Objective] This study aimed to optimize the conditions for purification of total flavones from litchi pericarp by macroporous absorption resin. E Method] The flavones adsorption rates and desorption rates of macroporous absorption resins (AB-8, HPD-600, D101 ) were compared, and the technological parameters of D101 during the purification process were investigated. E Result] D101 macroporous absorption resin was ap- propriate for the purification of total flavonoids from litchi pericarp. The optimal technological conditions were selected .. the pH of sample solution was 5.0; concentration of sample solution was 4 mg/ml, with a volume of 2.5BV; 80% ethanol was used as elution solution, with a volume of 2.0BV. [ Condusion] The content of total flavones achieved 83% after separation by D101 macoporous absorption resin. 展开更多
关键词 Litchi pericarp Total flavones Macroporous absorption resin purification process China
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Optimization of Extraction, Purification and Identification Process of Bullatine G
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作者 Jian LIU Jinglong CAO +4 位作者 Hui XUE Yannan LI Wenshuang HOU Yinghua LUO Chenghao JIN 《Plant Diseases and Pests》 CAS 2022年第6期27-30,共4页
The purification processes of bullatine G, such as acid water extraction, ammonia alkalization ether cold soaking method, ultrasonic assisted extraction and cellulase extraction, and the determination technologies of ... The purification processes of bullatine G, such as acid water extraction, ammonia alkalization ether cold soaking method, ultrasonic assisted extraction and cellulase extraction, and the determination technologies of bullatine G content, such as UV-spectrophotometry, chromatography, near infrared spectroscopy (NLR), thin layer chromatography (TLC), high performance liquid chromatography-mass spectrometry (HPLC-MS) were reviewed, in order to provide a theoretical basis for the development and application of bullatine G. 展开更多
关键词 Bullatine G Ditepenoid alkaloid purification process Content determination
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Preparation Process,Pharmacological Activity and Molecular Mechanism of Valepotriate
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作者 Jinglong CAO Jian LIU +5 位作者 Yannan LI Hui XUE Wenshuang HOU Ting XU Yuhe CUI Chenghao JIN 《Medicinal Plant》 CAS 2023年第1期114-117,共4页
In recent years,with the continuous development of the medicinal value of valepotriate and the great attention of scholars.The traditional extraction and purification process can no longer meet the current market stan... In recent years,with the continuous development of the medicinal value of valepotriate and the great attention of scholars.The traditional extraction and purification process can no longer meet the current market standards and needs.The modern technology of valepotriate is of great significance to its application and development.This paper reviews the extraction and purification process,molding process and pharmacological activity of valepotriate,providing a theoretical basis for the research and application of valepotriate. 展开更多
关键词 Valepotriate purification process Molding process Pharmacological activity ANTI-TUMOR ANTI-ANXIETY Anti-depression
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Unified Model of Purification Units in Hydrogen Networks 被引量:1
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作者 吴思东 王彧斐 冯霄 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第6期730-733,共4页
Purification processes are widely used in hydrogen networks of refineries to increase hydrogen reuse. In refineries, hydrogen purification techniques include hydrocarbon, hydrogen sulfide and CO removal units. In addi... Purification processes are widely used in hydrogen networks of refineries to increase hydrogen reuse. In refineries, hydrogen purification techniques include hydrocarbon, hydrogen sulfide and CO removal units. In addition, light hydrocarbon recovery from the hydrogen source streams can also result in hydrogen purification. In order to simplify the superstructure and mathematical model of hydrogen network integration, the models of different purification processes are unified in this paper, including mass balance and the expressions for hydrogen recovery and impurity removal ratios, which are given for all the purification units in refineries. Based on the proposed unified model, a superstructure of hydrogen networks with purification processes is constructed. 展开更多
关键词 purification process hydrogen network integration impurity removal ratio REFINERY
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Drinking water safety and the development of purification technology
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作者 Li Guibai 《Engineering Sciences》 EI 2012年第4期7-11,共5页
This paper briefly introduced the evolution of purification technology for drinking water over time. After description of the 1st generation processes in the beginning of the 20th century - conventional processes and ... This paper briefly introduced the evolution of purification technology for drinking water over time. After description of the 1st generation processes in the beginning of the 20th century - conventional processes and the 2nd generation processes in 1970s - advanced treatment processes, a tertiary processes - UF (ultrafiltration) based on integrated processes was proposed. Moreover, reaction measures (dosing variety of regents for different contaminants) for urban source water emergencies were illustrated in brief. A new technology of KMnO4 and potassium permanganate composite (PPC) for drinking water purification which was developed by Harbin Institute of Technology (HIT) was concisely introduced. 展开更多
关键词 urban drinking water safety tertiary purification processes UF source water emergencies and the reactionplan KMnQ and PPC
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Study and Commercial Test on Technology for Deacidification of Distillate Oils 被引量:1
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作者 Tang Xiaodong An Rong +1 位作者 Cui Yingxian Du Hongyong 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2005年第3期19-25,共7页
A new kind of solvent for deacidification of distillate oils was introduced in this paper. After successful laboratory study this technology had been applied in commercial scale successfully. Compared to traditional c... A new kind of solvent for deacidification of distillate oils was introduced in this paper. After successful laboratory study this technology had been applied in commercial scale successfully. Compared to traditional caustic wash of distillate oils, this technology has a lot of merits, such as the broad range of distillates to be processed, low caustic consumption, recycle of deacidifying agent, absence of waste caustic discharge, and low equipment revamp expenses, which can have promising perspectives for exploitation and application of this technology. 展开更多
关键词 distillate oil deacidifying agent petroleum acids purification process experimental study commercial application
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Research of Supercritical CO2 Fluid Refined Natural Borneol 被引量:1
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作者 Hongcheng He Layun Deng +1 位作者 Kedan He Qianwen Chen 《American Journal of Plant Sciences》 2016年第13期1794-1801,共8页
In this study, with borneol fragments in the crystallized mother liquor of natural borneol used as the raw materials, supercritical carbon dioxide method is adopted for refining to get high purity borneol. The result ... In this study, with borneol fragments in the crystallized mother liquor of natural borneol used as the raw materials, supercritical carbon dioxide method is adopted for refining to get high purity borneol. The result of the experiment shows that the yield and purity are excellent with an extraction pressure of 11 MPa, an extracting temperature of 40&deg;C, a carbon dioxide flow rate of 25 L&middot;h<sup>-</sup><sup>1</sup> and an extraction time of 20 minutes. After detected by gas chromatography, the purity of the crystallization products could reach 96%. 展开更多
关键词 Natural Borneol Supercritical Carbon Dioxide purification process
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Allergenic risk assessment of porcine myoglobin expressed by engineered Komagataella Phaffii
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作者 Yongli Ye Jiadi Sun +8 位作者 Jiayuan Xu Peipei Li Lina Sheng Yuan Qian Jian Ji Xiaomin Han Xinrui Zhao Jingwen Zhou Xiulan Sun 《Fundamental Research》 CAS CSCD 2024年第5期1339-1348,共10页
Myoglobin produced by fermentation using engineered Komagataella phaffii is an important color additive in meat analogue products,but its allergenicity is poorly understood.Here,we initially searched the Allergen Onli... Myoglobin produced by fermentation using engineered Komagataella phaffii is an important color additive in meat analogue products,but its allergenicity is poorly understood.Here,we initially searched the Allergen Online database and did not find any allergic or cross-reactive proteins in porcine myoglobin(PM).In vitro simulated digestion demonstrated that PM did not exhibit notable acid-base resistance or anti-digestion capabilities.However,sensitization was observed in BALB/c mice,including a significant increase in specific antibodies and biomarkers for allergic reactions,as well as alterations in gut microbiome and serum metabolome.Interestingly,the intensity of sensitization exhibited a negative correlation with the purity of PM.60%and 88%purities showed weaker sensitization compared to the ovalbumin control group.These allergic reactions were likely due to the non-myoglobin protein portion,highlighting the importance of purification processes and the urgent need to assess the allergenicity of this portion. 展开更多
关键词 Porcine myoglobin Komagataella phaffii Allergenic risk assessment Immune response purification process
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Quantum hyperentanglement and its applications in quantum information processing 被引量:13
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作者 Fu-Guo Deng Bao-Cang Ren Xi-Han Li 《Science Bulletin》 SCIE EI CAS CSCD 2017年第1期46-68,共23页
Hyperentanglement is a promising resource in quantum information processing with its high capacity character, defined as the entanglement in multiple degrees of freedom(DOFs) of a quantum system, such as polarization,... Hyperentanglement is a promising resource in quantum information processing with its high capacity character, defined as the entanglement in multiple degrees of freedom(DOFs) of a quantum system, such as polarization, spatial-mode, orbit-angular-momentum, time-bin and frequency DOFs of photons.Recently, hyperentanglement attracts much attention as all the multiple DOFs can be used to carry information in quantum information processing fully. In this review, we present an overview of the progress achieved so far in the field of hyperentanglement in photon systems and some of its important applications in quantum information processing, including hyperentanglement generation, complete hyperentangled-Bell-state analysis, hyperentanglement concentration, and hyperentanglement purification for high-capacity long-distance quantum communication. Also, a scheme for hyper-controlled-not gate is introduced for hyperparallel photonic quantum computation, which can perform two controlled-not gate operations on both the polarization and spatial-mode DOFs and depress the resources consumed and the photonic dissipation. 展开更多
关键词 Quantum hyperentanglement High-capacity quantum communication Concentration and purification Hyperparallel photonic quantumcomputation Quantum information processing
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Mass transfer mechanisms in fixed-bed adsorption of erythromycin 被引量:2
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作者 Ying SUN Jiawen ZHU +2 位作者 Kui CHEN Sheng ZHU Jie XU 《Frontiers of Chemical Science and Engineering》 SCIE EI CSCD 2008年第4期353-360,共8页
The equilibrium and kinetic characteristics of the adsorption of erythromycin to Sepabeads SP825 were determined.The equilibrium data in a batch system was well described by a Langmuir isotherm.The separation performa... The equilibrium and kinetic characteristics of the adsorption of erythromycin to Sepabeads SP825 were determined.The equilibrium data in a batch system was well described by a Langmuir isotherm.The separation performance was investigated in a fixed-bed system with respect to the adsorption superficial velocity,ionic strength and pH.A mathematical model was used to simulate the mass transfer mechanism,taking film mass transfer,pore diffusion and axial dispersion into account.The model predictions were consistent with the experi-mental data and were consequently used to determine the mass transfer coefficients. 展开更多
关键词 fixed-bed adsorption superficial velocity ionic strength erythromycin However investigations on the parameters governing the performance of this technology are still scarce.In the present work a polymeric and porous resin Sepabeads SP825 resin was used for its higher adsorption efficiency compared with the resins reported.The equilib-rium capacity of Sepabeads SP825 for EM in a batch system was established using a Langmuir isotherm.The effects of superficial velocity ionic strength and pH on the adsorption process were determined from the results of fixed bed experiments.And a model of the purification process was used to simulate the mass transfer mechanism which has taken film mass transfer pore diffusion and axial dispersion into account.The experimental adsorp-tion measurements were compared to the results calcu-lated from the model.The completion of these studies provide some essential parameters which are required in order to design a successful purification process and better understand the fundamentals of these process.
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What is going on in magnesium alloys? 被引量:53
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作者 X.J. Wang D.K. Xu +10 位作者 R.Z. Wu X.B. Chen Q.M. Peng L. Jin Y.C. Xin Z.Q. Zhang Y. Liu X.H. Chen G. Chen K.K. Deng H.Y. Wang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2018年第2期245-247,共3页
China has been developed into one of the most active regions in terms of both fundamental and applied research on magnesium (Mg) and its alloys in the world from a solid base laid by its prominent metallurgist and m... China has been developed into one of the most active regions in terms of both fundamental and applied research on magnesium (Mg) and its alloys in the world from a solid base laid by its prominent metallurgist and materials scientists over the past decades. Nowadays, a large number of young-generation researchers have been inspired by their predecessors and become the key participants in the fields of Mg alloys, which consequently led to the establishment of China Youth Scholar Society for Magnesium Alloys Research in 2015. Since then, the first two China Youth Scholars Symposiums on Mg Alloys Research had been held at Harbin (2015) and Chongqing (2016) China, respectively. A number of crucial research inter- ests related to fundamental and applied Mg research were discussed at the conferences and summarized in this short perspective, aiming to boost far-reaching initiatives for development of new Mg-based materials to satisfy the requirements for a broad range of industrial employments. Herein, four main aspects are included as follows: i) Plastic deformation mechanism and strengthening strategy, ii) Design and development of new Mg-based materials, iii) Key service properties, and iv) New processing technologies. 展开更多
关键词 Mg alloys Plastic deformation Strengthening Alloying design High performance Corrosion Fatigue behavior Creep processing technologies purification
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