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Differentiation of Fungal Destructive Behaviour of Wood by the White-Rot Fungus Fomes fomentarius by MALDI-TOF Mass Spectrometry

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Journal of Renewable Materials 2021年第3期9卷 381-397页

作者： Ehsan Bari Antonio Pizzi Olaf Schmidt Siham Amirou Mohammad Ali Tajick-Ghanbary Miha Humar Department of Wood Sciences and Engineering Technical Faculty of No.1Mazandaran BranchTechnical and Vocational University(TVU)SariIran Department of Industrial Chemistry ENSTIB-LERMABUniversity of LorraineEpinalFrance Department of Wood Biology University of HamburgHamburgGermany Department of Mycology and Plant Pathology College of Agronomic SciencesAgricultural and Natural Resources UniversitySariIran Department of Wood Science and Technology Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia

There are many methods to identify and recognize the molecular and behavioural differences between *** of the methods for the detection and identification of unknown organisms as well as intermolecular and intramolecular structural differences is MALDI-TOF mass ***,differentiation of Fomes fomentarius decay capabilities on the chemical properties of the wood cell wall of the tree species Quercus castaneifolia,Juglans regia,and Carpinus betulus were used to determine and characterize the destructive behaviour of *** decay by MALDI-TOF mass *** results showed that the fungus had more significant destructive behaviour on *** than the other *** this evidence,completely removal of xylan hemicellulose fragment+Na+at peak 1227 Da and severe digestion of fragment of glucomannan hemicellulose at peak 1477–1480 Da that it seems that signs of soft-rot patterns were obtained from the decayed sample of ***,while these were incremental and unchanged for *** and ***,***,*** had different peaks of atomic mass than *** and *** wood,*** results showed that this technique could be useful for separating and identifying unknown compounds of the wood cell wall attacked by fungi relying on their biological behaviour.

关键词： White-rot Fomes fomentarius MALDI-TOF fungal destructive behaviours

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结构用高含水率木材的胶合研究概况

木材工业 2009年第5期23卷 31-33页

作者：那斌卢晓宁 A. PIZZI 南京林业大学木材工业学院南京210037 enstib-LERMAB University of Nancy

湿材胶合,即高含水率木材的胶合,在20世纪80年代初就已实现商业化。笔者介绍了国内外热固性胶黏剂、常温固化胶黏剂在高含水率木材胶合中的应用,以及单组分聚氨酯胶黏剂在结构用胶合材方面应用的研究概况,为我国结构材的研究和制造提供... 详细信息

湿材胶合,即高含水率木材的胶合,在20世纪80年代初就已实现商业化。笔者介绍了国内外热固性胶黏剂、常温固化胶黏剂在高含水率木材胶合中的应用,以及单组分聚氨酯胶黏剂在结构用胶合材方面应用的研究概况,为我国结构材的研究和制造提供参考。

关键词：湿材胶黏剂胶合木苯酚-间苯二酚甲醛树脂胶单组分聚氨酯胶

A Review of the Advances Made in Improving the Durability of Welded Wood against Water in Light of the Results of African Tropical Woods Welding

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Journal of Renewable Materials 2023年第3期11卷 1077-1099页

作者： Jean Jalin Eyinga Biwôlé Achille Bernard Biwolé Antonio Pizzi Joseph Zobo Mfomo César Segovia Atangana Ateba Evariste Fedoung Fongnzossie Sahbi Ouertani Xinyi Chen Bénoît Ndiwe DieudonnéAbessolo Pierre-Jean Meausoone Laboratory of Forest Resources and Wood Valorization University of DoualaP.O.Box.2701DoualaCameroon Laboratory of Mechanics University of DoualaP.O.Box.2701DoualaCameroon CETELOR University of LorraineP.O.Box.21042EpinalFrance enstib-LERMAB University of LorraineP.O.Box.21042EpinalFrance Laboratory of Energetics and Thermal and Mass Transfers El Manar University of TunisTunisTunisia

Wood plays a major role in the production of furniture and wooden ***,in this process,the massive use of adhesives and plural connectors remains a definite problem for health and the ***,wood welding is a breakthrough in this *** paper reviews the applications of wood welding in furniture and construction and then examines advances in improving the durability of welded wood against *** contribution also highlights the need to join African tropical woods using the rotational friction welding *** to our results,these woods present interesting chemical singularities,which could provide solutions to the water vulnerability of the welded ***,the use of such a joining method would first free the Cameroonian furniture industry from the chemical industry,secondly position it at the forefront of new eco-design trends and thirdly make it competitive with other countries in the Central African *** works enrich the long and rich bibliography on the technique of wood welding,which has long been conspicuous by its absence of tropical woods.

关键词： Wood welding tropical woods water vulnerability chemical singularities natural durability

湿材胶合用单组分聚氨酯胶黏剂及其胶合木蠕变性能研究

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南京林业大学学报（自然科学版） 2009年第4期33卷 121-124页

作者：那斌 A.PIZZI 卢晓宁南京林业大学木材工业学院江苏南京210037 enstib LERMAB University of Nancy 1epinalfrance88051

应用液态13C核磁共振技术(NMR)分析了商用单组分聚氨酯胶黏剂的化学结构和聚合特性,应用热机械分析(TMA)评估胶接面的黏弹性本质,分析了单组分聚氨酯胶合木梁的环境蠕变,以及胶合木梁的剪切性能。结果表明:单组分聚氨酯胶黏剂呈现出很... 详细信息

应用液态13C核磁共振技术(NMR)分析了商用单组分聚氨酯胶黏剂的化学结构和聚合特性,应用热机械分析(TMA)评估胶接面的黏弹性本质,分析了单组分聚氨酯胶合木梁的环境蠕变,以及胶合木梁的剪切性能。结果表明:单组分聚氨酯胶黏剂呈现出很强的温度蠕变,环境蠕变被抑制并不是导致温度蠕变的原因。胶合前后胶合木梁的平衡含水率对聚氨酯胶黏剂的胶合性能有着重要影响。用聚氨酯胶黏剂胶合湿材,还远远达不到结构材标准的需求,同时试材需要经过重新干燥以达到相关标准要求。经过重新干燥或木材在干状态下胶合,可以获得较好性能的胶合木。

关键词：聚氨酯胶黏剂湿材胶合热机械分析核磁共振技术胶合木蠕变性能

Structural Elucidation of the Polymeric Condensed Tannins of Acacia nilotica Subspecies by ^(13)C NMR, MALDI-TOF and TMA as Sources of Bioadhesives

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Journal of Renewable Materials 2024年第7期12卷 1291-1310页

作者： Zeinab Osman Antonio Pizzi Bertrand Charrier Institute of Engineering Research and Materials Technology National Center for ResearchP.O.Box 2404KhartoumSudan enstib-LERMAB University of Lorraine27 rue Philippe SeguinEpinal88000France Department of Materials Science and Engineering Institute of Analytical Sciences and Physico-Chemistry for the Environment and Materials-Xylomat(IPREM-UMR5254)University of Pau and the Adour RegionE2S UPPACNRSMont de Marsan40004France

Tannin was extracted from different subspecies of Acacia nilotica,Acacia nilotica nilotica(Ann),Acacia nilotica tomentosa(Ant)and Acacia nilotica adansonii(Ana).The aim was to elucidate their structure and evaluate their reactivity as bioadhesives in the wood *** extracts were prepared by hot water extraction(90°C tem-perature).Their gel time with paraformaldehyde was used atﬁrst to compare their *** tannin contents and the percentage of total polyphenolic materials in different solutions of the extracts spray dried powder were determined by the hide powder *** solutions(47%)were tested by both MALDI ToF,*** thermomechanical analysis(TMA)was performed to evaluate their modulus of elasticity(MOE)at different *** gel times of all the three tannin extracts showed that their reactivity and it was com-parable to other known procyanidin/prodelphinidin tannin extract ***,Ann and Ant showed highest per-cent of total polyphenolic materials at 70%,64%,and 57%,*** 13CNMR spectra showed that the three subspecies of condensed tannins were mainly constituted of procyanidins(PC)and prodelphinidins(PD)in slightly different ***(56.5%PC and 43.4%PD),Ant(57%PC and 43%PD)and Ana(58%PC and 42%PD).MALDI–TOF spectra showed the presence ofﬂavonoid monomers,and oligomers some of which linked to short carbohydrates monomers or *** revealed that the three types of tannins had high MOE at their initial pH(5).

关键词： Acacia nilotica condensed tannins procyanidins prodelphinidins 13C NMR MALDI-ToF

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单宁基木材胶黏剂的研究进展

林产工业 2008年第6期35卷 15-19页

作者：雷洪杜官本 A Pizzi 南京林业大学木材工业学院西南林学院木质科学与装饰工程学院 enstib University of Nancy 188000 EpinalFrance

在常见凝缩类单宁结构特征基础上,讨论了单宁与醛的反应机理,总结了单宁基木材胶黏剂存在的问题及其解决办法,并综述了单宁基木材胶黏剂的应用研究进展。

关键词：单宁基木材胶黏剂耐水性胶接强度单宁甲醛

Characteristics and Mechanicals Potentials of Wood Adhesives Manufactured with Grasses’ Lignins

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Journal of Materials Science and Chemical Engineering 2019年第1期7卷 35-47页

作者： Lionel Tapsia Karga Danwe Raidandi Noel Konai Antonio Pizzi Lucien Meva’a Laboratory of Mechanics and Civil Engineering National Advanced School of Engineering University of Yaoundé 1 Yaoundé Cameroon Department of Mechanical Engineering Petroleum and Gas Faculty of Mines and Petroleum Industries University of Maroua Kaélé Cameroon Departement of Mechanical Engineering and Materials National Advanced School of Engineering University of Maroua Maroua Cameroon enstib-LERMAB University of Lorraine Epinal France

In order to manufacture environmentally friendly particle boards and enhance local resources, the lignins of Sorghum bicolor and Andropogon gayanus characterized using RMN 13C and MALDI TOF have the same structures. They contents Guaiacyl (G), Syringyl (S), p-hydroxyphenylpropane (H) and functional groups of phenols, flavonoids and secondary alcohols. The total phenol content determinated using Folin-Ciocalteu reagent is respectively 20.97 and 15.42 mg eqgallic acid/g of extract. The power of their adhesives is different. The Internal Bond (IB) of particleboards manufactured with these adhesives are respectively 0.37 MPa and 0.41 MPa. These lignins can be used as antioxydants.

关键词： Lignins Sorghum bicolor and Andropogon gayanus Structures Adhesives Internal Bond Antioxydants

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树脂型甲醛捕捉剂的研制

粘接 2011年第3期32卷 40-43页

作者：雷洪杜官本 A.Pizzi 西南林学院木质科学与装饰工程学院云南昆明650224 enstib Nancy1University

在常规脲醛树脂制备工艺基础上,成功制备了树脂型甲醛捕捉剂。借助13C-NMR和GPC分析方法,研究了甲醛捕捉剂的结构特点及分子质量分布。将其与自制的低物质量比脲醛树脂混合使用,考查了甲醛捕捉剂对脲醛树脂性能的影响。结果表明,该甲醛... 详细信息

在常规脲醛树脂制备工艺基础上,成功制备了树脂型甲醛捕捉剂。借助13C-NMR和GPC分析方法,研究了甲醛捕捉剂的结构特点及分子质量分布。将其与自制的低物质量比脲醛树脂混合使用,考查了甲醛捕捉剂对脲醛树脂性能的影响。结果表明,该甲醛捕捉剂不含游离甲醛,已实现一定程度的树脂化。甲醛捕捉剂中大量游离尿素及一羟甲基脲等低分子质量物质的存在能有效降低刨花板的甲醛释放量,但对混合树脂的最终强度不利。添加甲醛捕捉剂对脲醛树脂的固化行为影响较小。当脲醛树脂与甲醛捕捉剂质量比为85/15、热压时间为4min时,刨花板性能较佳。

关键词：甲醛捕捉剂结构分子质量

Desorption Behavior and Thermogravimetric Analysis of Bio-Hardeners

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Journal of Renewable Materials 2022年第8期10卷 2015-2027页

作者： Benoit Ndiwe Antonio Pizzi Hubert Chapuis Noel Konai Lionel Karga Pierre Girods Raidandi Danwe Department of Mechanical Engineering Higher Technical Teacher Training College Douala(ENSET)University of DoualaDoualaCameroon Laboratory of Forest Resources and Wood Valorization(Larefob) ENSET of DoualaDoualaCameroon Department of Engineering Science West UniversityTrollhättanSweden LERMAB-enstib University of LorraineEpinal88051France Laboratoire D’Etudes et de Recherche sur le Matériau Bois LERMAB Facultédes Sciences et TechnologiesUniversitéde LorraineNancyFrance Laboratory of Materials Mechanics Structures and Integrated ManufacturingNational Advanced School of EngineeringYaoundé1 UniversityYaoundéCameroon Department of Mechanical Petroleum and Gas Engineering Faculty of Mines and Petroleum IndustriesUniversity of MarouaKaéléCameroon Laboratory of Mechanic Materials and BuildingSahel Institute of Maroua UniversityMarouaCameroon

In this work,the thermal degradation and drying of bio-hardeners are *** bio-hardeners based on exudates of Senegalia senegal,Vachellia nilotica,Vachellia seyal,and Acacia siebteriana were analyzed by FTIR and thermogravimetric analysis,and a desorption study was also *** analysis by infrared spectroscopy indicates the existence of oligomers of different types all giving 5-hydroxy-2-hydroxymethylfuran and 2,5-dihydroxymethylfuran which are then the real hardening *** pyrolysis of these extracts reveals three main regions of mass loss,a first region is located between 25℃and 110℃reflecting the loss of water from the adhesive and the formation of some traces of volatile organic compounds such as CO_(2)and CO,a second zone characterized by the release of CO,CO_(2)and CH4 gases with peaks between 110°and 798.8℃.At the end of the analysis,about 22%of the initial mass remains undecomposed,this mass corresponds to the rigid segments of the bio-hardener which are not completely decomposed.

关键词： Exudates pyrolysis FTIR bio-hardener desorption