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Recent Technologies for the Extraction and Separation of Polyphenols in Different Plants:A Review

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Journal of Renewable Materials 2022年第6期10卷 1471-1490页

作者： Yingying Hu Bowen Yan Zhefan Stephen Chen Lei Wang Wei Tang Caoxing Huang Co-innovation center for Efficient processing and Utilization of Forest products College of Chemical EngineeringNanjing Forestry UniversityNanjingChina Nexus of Rare Neurodegenerative Diseases School of Life SciencesFaculty of ScienceThe Chinese University of Hong KongHong KongChina College of Food Science and Engineering Ocean University of ChinaQingdaoChina

Polyphenol is an important secondary metabolite with unique physiological functions and biological *** polyphenols in different plants and biomass have different chemical structures,which needs various extraction methods to obtain ***,plant polyphenols and their application research in food and medicine have become a research hotspot,which is mainly focused on preparation,purification,structural identification,and biological activity *** these researches,extraction and separation are the key sections to investigate the structure and activity of ***,this review summarized the recent extraction and separation techniques of polyphenol,including solvent extraction,supercritical fluid extraction,ultrasonic extraction,enzymatic extraction,resin adsorption extraction,and electric field method,*** addition,this review also reveals the current problems and proposes future extraction research of *** is hoped that this review will provide a guide for the researchers who are actively committed to promoting progress in the field of polyphenolics.

关键词： Plants polyphenols extraction separation

Inhibitory effect of a Chinese quince seed peptide on protein glycation:A mechanism study

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生物质资源与工程(英文) 2023年第2期8卷 187-197页

作者： Yejun Deng Xiang Wang Caihong Zhang Pujun Xie Lixin Huang National Engineering Laboratory for Biomass Chemical Utilization Key and Open Laboratory of Forest Chemical EngineeringNational Forestry and Grassland AdministrationKey Laboratory of Biomass Energy and MaterialInstitute of Chemical Industry of Forest ProductsChinese Academy of ForestryNanjingJiangsu 210042China Co-innovation center of Efficient processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China

Non-enzymatic glycation can cause the formation and accumulation of advanced glycation end products(AGEs),and it poses great threats to human *** is urgent to search for safe and efficient inhibitors to prevent reducing sugar induced protein *** this study,we inves-tigated the anti-glycation activity and mechanism of an identified peptide,Asparagine-Tyrosine-Arginine-Arginine-Glutamic acid(NYRRE)from Chinese quince seed protein hydrolysate,by mul-tispectroscopy,confocal imaging,and computational molecular ***,it was found that NYRRE could scavenge hydroxyl radicals and chelate Fe 2+.Besides,the NYRRE was effective in every stage of fructose induced bovine serum albumin(BSA)*** NYRRE could re-duce the formation of fructosamine,carbonyl compounds,glycoxidation products and𝛽-amyloid ***,NYRRE could protect thiol groups and stabilize the spatial conformation of *** NYRRE presented strong inhibition in fluorescent AGEs,and 68.19%of total AGEs formation was prevented with NYRRE at 15 mmol/*** results of molecular simulation indi-cated that NYRRE could insert into the hydrophobic pocket of BSA and interact with hot spots,including arginine and lysine *** mechanism of NYRRE inhibiting protein glycation could be due to its antioxidant activity,BSA structure stabilizing ability,and specific bond with glycation sites of *** results provided a valuable reference for developing NYRRE as an efficient antiglycation agent in preventing glycation-mediated diseases.

关键词： Peptide Chinese quince seed Antiglycation Molecular docking simulation

The modulating effect of N coordination on single-atom catalysts researched by Pt-N_(x)-C model through both experimental study and DFT simulation

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Journal of Materials Science & Technology 2021年第32期91卷 160-167页

作者： Mengmeng Fan Jiewu Cui Junjie Zhang Jingjie Wu Shuangming Chen Li Song Zixing Wang Ao Wang Robert Vajtai Yucheng Wu Pulickel MAjayan Jianchun Jiang Dongping Sun nanjing Forestry University Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest ResourcesCollege of Chemical EngineeringNanjing 210037China Rice University Department of Materials Science and NanoEngineeringHoustonTX 77005USA Hefei University of Technology School of Materials Science and EngineeringHefei 230009China University of Cincinnati Department of Chemical and Environmental EngineeringCincinnatiOH 45221USA University of Science and Technology of China National Synchrotron Radiation LaboratoryCAS Center for Excellence in NanoscienceHefei 230026China nanjing University of Science and Technology Chemicobiology and Functional Materials InstituteNanjing 210094China Key Lab of Biomass Energy and Material Jiangsu ProvinceJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesInstitute of Chemical Industry of Forest ProductsChinese Academy of ForestryNanjing 210042China

N-doped carbon-based single-atom catalysts(NC-SACs) are widely researched in various electrochemical reactions due to high metal atom utilization and catalytic *** catalytic activity of NC-SACs originates from the coordinating structure between single metal site(M) and the doped nitrogen(N) in carbon matrix by forming M-N_(x)-C structure(1≤x≤4).The M-N4-C structure is widely considered to be the most stable and effective catalytic ***,there is no in-depth research for the "x" modulation in Pt-Nx-C structure and the corresponding catalytic ***,atomically dispersed Pt on N-doped carbon(Pt-NC) with Pt-Nx-C structure(1≤x≤4),as a research model,is fabricated by a ZIF-8 template and applied to catalytic oxygen *** carbonization temperatures are used to control N loss,and then modulate the N coordination of Pt-Nx-C *** Pt-NC has the predictable low half-wave potential(E_(1/2)) of 0.72 V vs RHE compared to the Pt/C 20% of 0.81 V due to low Pt ***,the Pt-NC shows a high onset potential(1.10 V vs RHE,determined for j=-0.1 mA cm^(2)) and a high current density of 5.2 mA cm^(-2),more positive and higher than that of Pt/C 20%(0.96 V) and 4.9 mA cm^(-2),*** the structural characterization and DFT simulation confirmed,the reducing PtN coordination number induces low valence of Pt atoms and low free energy of oxygen reduction,which is responsible for the improved catalytic ***,the Pt-NC shows high mass activity(172 times higher than that of Pt/C 20%),better stability and methanol crossover resistance.

关键词： Modulating effect N coordination Single-atom catalysts Pt-N_(x)-C model DFT simulation

Facile synthesis of ( β -chlorodifluoroethyl)phosphonates via chlorination reaction of difluoroalkyl diazo derivatives with HCl

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Chinese Chemical Letters 2022年第5期33卷 2429-2432页

作者： Jiang Liu Romana Pajkert Li Wang Haibo Mei Gerd-Volker Röschenthaler Jianlin Han Jiangsu Co-innovation center of Efficient processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China Department of Life Sciences and Chemistry Jacobs University Bremen gGmbHCampus Ring 1Bremen 28759Germany

An efficient chlorination reaction of in situ generated(β-diazo-α,α-difluoroethyl)phosphonates has been achieved with hydrochloric acid as a chlorine source under mild and operationally convenient *** reaction does not need any catalyst and tolerates a wide scope of substrates,which affords the(β-chlorodifluoroethyl)phosphonate products in good to excellent *** reaction represents the first example of the halogenation of difluoroalkyl diazo compounds,and also provides an easy way for the synthesis of difluoromethylenephosphonate-containing compounds.

关键词： Difluorodiazoethane (β-Diazo-α,α-difluoroethyl)phosphonates Halogenation reaction Difluoroalkyl diazo Hydrochloric acid Masked carbene

Construction of the hierarchical porous biochar with an ultrahigh specific surface area for application in high-performance lithium-ion capacitor cathode

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Biochar 2023年第1期5卷 803-814页

作者： Haotian Zhu Jiayuan Li Dichao Wu Gaoyue Zhang YunJuan Sun Ao Wang Kang Sun Institute of Chemical Industry of Forest products Chinese Academy of ForestryNanjing 210042China Key Laboratory of Biomass Energy and Material Nanjing 210042JiangsuChina National Engineering Laboratory for Biomass Chemical Utilization Nanjing 210042China Key and Open Laboratory on Forest Chemical Engineering SFANanjing 210042China Co-innovation center of Efficient processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China School of Energy and Environment Southeast UniversityNanjing 210096China

Biochar with a highly accessible specific surface area can display a higher performance when it is used as the cathode of lithium-ion *** the complex composition and diversity of biomass precursors,there is a lack of a universally applicable method to construct hierarchical porous biochar *** this work,a multi-stage activation strategy combining the feature of different activation methods is proposed for this *** confirm the porous characteristic in prepared samples,N2 adsorption-desorption and transmission electron microscope were *** the optimal sample,BC-P3K4S had the highest specific surface area of 3583.3 m^(2) g^(−1).Evaluated as the electrode for a lithium-ion capacitor,BC-P3K4S displayed a capacity of 139.1 mAh g^(−1) at 0.1 A g^(−1).After coupling it with pre-lithiated hard carbon,the full device exhibited a high energy density of 129.3 W h kg^(−1) at 153 W kg^(−1).The work outlined herein offers some insights into the preparation of hierarchical porous biochar from complex biomass by multistep activation method.

关键词： Ultrahigh specific surface area Hierarchical porous biochar Multistage activation Lithium-ion capacitor Cathode materials

Production of Itaconic Acid Through Microbiological Fermentation of Inexpensive Materials

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Journal of Bioresources and Bioproducts 2019年第3期4卷 1-8页

作者： Jing YANG Hao XU Jianchun JIANG Ning ZHANG Jingcong XIE Min WEI Jian ZHAO Institute of Chemical Industry of Forest products CAFNational Engineering Laboratory for Biomass Chemical UtilizationKey and Open Laboratory of Forest Chemical EngineeringSFAKey Laboratory of Biomass Energy and MaterialJiangsu ProvinceNanjing 210042China Co-innovation center of Efficient processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China

Itaconic acid(IA)is a precursor of various chemicals,which has been on the US Department of Energy’s list of the top 12 platform chemicals that can potentially be produced from *** IA is mainly produced through a bio-fermentation method with sugar as raw ***,the high cost and low yield restrict the industrial application of the *** review summarized research advances in the IA production from alternative *** particular,the types of substrates as well as existing problems in the IA fermentation,strain breeding,and process regulation were *** it is pointed that decreasing the price of the IA through use of alternative substrates and increasing the titer of the IA through genetic engineering should be further focused on to support the industrialization of the IA.

关键词： itaconic acid fermentation Aspergillus terreus biomass

Fabricating pyridinic N-B sites in porous carbon as efficient metal-free electrocatalyst in conversion CO_(2)into CH_(4)

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中国化学快报:英文版 2023年第8期34卷 291-295页

作者： Yuying Zhao Qixin Yuan Mengmeng Fan Ao Wang Kang Sun Zeming Wang Jianchun Jiang Institute of Chemical Industry of Forest products Chinese Academy of ForestryKey Lab.of Biomass Energy and MaterialJiangsu ProvinceNational Engineering Lab for Biomass Chemical UtilizationNanjing 210042China Jiangsu Co-innovation center of Efficient processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials College of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China Institute of Nanochemistry and Nanobiology School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China

Electrochemical reduction of CO_(2)(CO_(2)RR)to value-added chemicals is an attractive strategy for greenhouse gas mitigation and carbon *** material is one of most promising electrocatalysts but its product selectivity is limited by few modulating approaches for active ***,the predominant pyridinic N-B sites(accounting for 80%to all N species)are fabricated in hierarchically porous structure of graphene nanoribbons/amorphous *** graphene nanoribbons and porous structure can accelerate electron and ion/gas transport during CO_(2)RR,*** carbon electrocatalyst exhibits excellent selectivity toward CO_(2)reduction to CH_(4)with the faradaic efficiency of 68%at−0.50 V *** demonstrated by density functional theory,a proper adsorbed energy of∗CO and∗CH_(2)O are generated on the pyridinic N-B site resulting into high CH_(4)***,this study provides a novel method to modulate active sites of carbon-based electrocatalyst to obtain high CH_(4)selectivity.

关键词： Carbon-based electrocatalyst Porous carbon Pyridinic N-B CO_(2)reduction CH_(4)selectivity

Protective effect of high-oleic acid peanut oil and extra-virgin olive oil in rats with diet-induced metabolic syndrome by regulating branched-chain amino acids metabolism

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Journal of Integrative Agriculture 2022年第3期21卷 878-891页

作者： ZHAO Zhi-hao SHI Ai-min GUO Rui LIU Hong-zhi HU Hui WANG Qiang Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products ProcessingMinistry of Agriculture and Rural AffairsBeijing 100193P.R.China Collaborative innovation center for Modern Grain Circulation and Safety College of Food Science and EngineeringNanjing University of Finance and EconomicsNanjing 210023P.R.China

High-oleic acid peanut oil(HOPO)and extra-virgin olive oil(EVOO)have been reported previously to have an attenuating effect on metabolic syndrome(MS).This study aimed to evaluate the metabolic effect of HOPO and EVOO supplementation in attenuating MS and the role of gut microbiota in regulating the metabolic ***-Dawley rats were continuously fed with a normal diet,high-fructose and high-fat(HFHF)diet,HFHF diet containing HOPO,or a HFHF diet containing EVOO for 12 *** metabolomics profiles of feces and serum samples were compared using untargeted metabolomics based on UPLC-Q/*** Least Squares Discriminant Analysis(PLS-DA)was used to identify the potential fecal and serum biomarkers from different *** between gut microbiota and biomarkers was assessed,and pathway analysis of serum biomarkers was *** in metabolic patterns in feces and serum were observed among different *** were 8 and 12 potential biomarkers in feces and 15 and 6 potential biomarkers in serum of HOPO group and EVOO group,respectively,suggesting that HOPO and EVOO supplementation mainly altered amino acids,peptides,and their analogs in feces and *** branched-chain amino acids(BCAAs)biosynthesis pathway was identified as a major pathway regulated by HOPO or *** study suggests that HOPO and EVOO supplementation ameliorate diet-induced MS,mainly via modulation of the BCAAs biosynthesis pathway.

关键词： metabolic syndrome high-oleic acid peanut oil extra-virgin olive oil metabolomics UPLC-Q/TOF-MS

Metallurgical pyrolysis toward Co@Nitrogen-doped carbon composite for lithium storage

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Green Energy & Environment 2021年第1期6卷 91-101页

作者： Yanyan Liu Kang Sun Jianchun Jiang Wenshu Zhou Yuan Shang Chenxia Du Baojun Li b Institute of Chemical Industry of Forest products CAFNational Engineering Lab.for Biomass Chemical UtilizationKey Lab.of Chemical Engineering of Forest ProductsNational Forestry and Grassland AdministrationKey Lab.of Biomass Energy and MaterialJiangsu ProvinceCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing210042China College of Chemistry Zhengzhou UniversityZhengzhou450001China Supercomputer center in ZZU Zhengzhou UniversityZhengzhou450052China

Elemental state matter-heteroatom-doped carbon composites are of great importance for the development of anode in lithium ion batteries(LIBs).In this article,metal–organic frameworks(MOFs)are adopted as precursor to prepare Co composites via metallurgical pyrolysis under controllable *** obtained nitrogen-doped porous carbon-Co nanocomposite possesses core–shell structure(Co@C–N).Co@C–N exhibits the best Li storage performances as anode active *** the 200th cycles at current density of 0.2 A g^(-1),a reversible capacity of 870 mAh g^(-1)is retained.A reversible capacity of 275 mAh g^(-1)still maintains with 5 A g^(-1).Co@C–N presents a high reversible capacity with excellent cycle *** the corresponding experimental and theoretical results,the Co0-based N-doped porous carbon composite is proposed to work as LIBs anode *** results provide a new design idea for electrode matters of metallic ion battery,and demonstrate that MOFs pyrolysis is an effective method for the construction of elemental state anode materials.

关键词： Co nanoparticles(NPs) Core–shell structure Lithium ion battery anode Metal–organic framework(MOF) Nitrogen-doped carbon