Academic literature on the topic 'Biodeterioration of paper'
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Journal articles on the topic "Biodeterioration of paper"
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Szczepanowska, Hanna. "BIODETERIORATION OF ART OBJECTS ON PAPER." Paper Conservator 10, no. 1 (January 1986): 31–39. http://dx.doi.org/10.1080/03094227.1986.9638529.
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Franco Castillo, Isabel, Esther García Guillén, Jesús M. de la Fuente, Filomena Silva, and Scott G. Mitchell. "Preventing fungal growth on heritage paper with antifungal and cellulase inhibiting magnesium oxide nanoparticles." Journal of Materials Chemistry B 7, no. 41 (2019): 6412–19. http://dx.doi.org/10.1039/c9tb00992b.
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Gutarowska, Beata. "Moulds in biodeterioration of technical materials." Folia Biologica et Oecologica 10 (November 30, 2014): 27–39. http://dx.doi.org/10.2478/fobio-2014-0012.
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Moulds are microorganisms which play the key role in biodeterioration of technical materials which results from their physiological features and metabolism. Technical materials constitute the source of carbon and energy (wood, paper, textiles, fuels, leather) or the surface for fungal growth (bricks, stone, metal, glass). Moulds characterized by a high biodeterioration activity – enzymatic and acidic, belong mainly to the following genera: Aspergillus, Penicillium, Trichoderma, Cladosporium, Paecilomyces and Chaetomium. Members of some taxa (besides the aforementioned also e.g. Stachybotrys, Alternaria, Epidermophyton, Microsporum, Scopulariopsis, Trichophyton) growing on technical substances and producing allergens and mycotoxins cause health hazards. Therefore, basing on the knowledge about conditions for mould development and biodeterioration mechanisms, we should appropriately preserve materials against mould growth. Looking for new disinfection methods safe for technical substances in order to inhibit mould growth is also important. Protective applications of biocides should be limited only to materials most sensitive to biodeterioration (paper, textiles, fuels, paints). On the one hand we should take into consideration environmental protection, on the other production of durable, biodegradable materials ensuring the product life cycle.
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Zotti, M., A. Ferroni, and P. Calvini. "Microfungal biodeterioration of historic paper: Preliminary FTIR and microbiological analyses." International Biodeterioration & Biodegradation 62, no. 2 (September 2008): 186–94. http://dx.doi.org/10.1016/j.ibiod.2008.01.005.
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De Leo, Filomena, Alessia Marchetta, and Clara Urzì. "Black Fungi on Stone-Built Heritage: Current Knowledge and Future Outlook." Applied Sciences 12, no. 8 (April 14, 2022): 3969. http://dx.doi.org/10.3390/app12083969.
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Black fungi are considered as one of the main group of microorganisms responsible for the biodeterioration of stone cultural heritage artifacts. In this paper, we provide a critical analysis and review of more than 30 years of studies on black fungi isolated from stone-built heritage from 1990 to date. More than 109 papers concerning the fungal biodeterioration activity of stone were analysed. The main findings were a check list of the black fungal taxa involved in the biodeterioration of stone-built heritage, with a particular reference to meristematic black fungi, the main biodeterioration pattern attributed to them, and the methods of study including the new molecular advances. A particular focus was to discuss the current approaches to control black fungi from stone-built heritage and future perspectives. Black fungi are notoriously hard to remove or mitigate, so new methods of study and of control are needed, but it is also important to combine classical methods with new approaches to improve current knowledge to implement future conservation strategies.
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Austigard, Mari Sand, and Johan Mattsson. "Monitoring climate change related biodeterioration of protected historic buildings." International Journal of Building Pathology and Adaptation 38, no. 4 (November 11, 2019): 529–38. http://dx.doi.org/10.1108/ijbpa-11-2018-0094.
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Purpose Expected rates of biodeterioration in heritage buildings under historic conditions are well known. Deteriorating organisms will benefit from a warmer and wetter climate, giving faster and less predictable rates of deterioration. The Directorate for Cultural Heritage in Norway has requested development of a programme for long-term monitoring of climate change impacts to historic buildings. The development process and resulting monitoring system are previously described. The paper aims to discuss this issue. Design/methodology/approach An initial conditions survey is performed, and reference points are chosen in each building. Two microclimatic biodeterioration monitoring panels (MBM panels) are mounted in every building. The MBM panels monitor temperature, relative humidity and wood moisture content, and have standard wooden blocks for investigation of mould growth. The panels will show both the influence of outdoor climate on microclimate inside the building, and the connection between microclimate and activity of degrading organisms. Findings High competence and multi-disciplinary approach from the personnel involved are essential to balance flexibility and rigidity and decide the damages that are probably influenced by climate change. Extensive knowledge and experience in surveys of biodeterioration damages in heritage buildings is necessary to distinguish “normal” biodeterioration from biodeterioration caused by climate changes. The MBM panels are essential for possible establishment of causality between damages and climate change. Originality/value The authors believe that the methods described give the best possible grounds for future evaluation of damages and microclimatic conditions in buildings compared to changes in regional climatic conditions. Establishment of causality between climate change and development in biological deterioration is still a challenging task.
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Popikhina, Elena A., Ekaterina S. Trepova, and Svetlana S. Khazova. "Protection of building materials from biodeterioration." Vestnik MGSU, no. 2 (February 2022): 178–87. http://dx.doi.org/10.22227/1997-0935.2022.2.178-187.
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Introduction. The foci of biological damage can lead to destruction of building materials. The paper presents the results of an examination of samples of brickwork and cladding of an industrial building with traces of biological damage.
Materials and methods. The contamination of materials was identified using the Koch method. The effectiveness of biocides was evaluated using the disk diffusion method, namely, its modification applied to identify the fungicidal activity by adding antiseptics to samples of damaged building materials, identifying the number of viable microorganisms in the material, processing damaged building structures and monitoring the microorganisms on their surfaces.
Results. The number of viable microorganisms in the studied samples of building materials exceeded the acceptable value, which evidences the process of biodegradation. The resistance of isolated strains of fungi to biocides, that have various derivatives of isothiazolone as the main active ingredient, was determined.
Conclusions. Sanatex, Macrosept, Rocima GT, Rocima 243, Neomid 440 Eco can be recommended for the disinfection treatment of biologically damaged building materials.
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Fabbri, A. A., A. Ricelli, S. Brasini, and C. Fanelli. "Effect of different antifungals on the control of paper biodeterioration caused by fungi." International Biodeterioration & Biodegradation 39, no. 1 (January 1997): 61–65. http://dx.doi.org/10.1016/s0964-8305(97)00001-2.
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Pinzari, Flavia, Giovanna Pasquariello, and Antonella De Mico. "Biodeterioration of Paper: A SEM Study of Fungal Spoilage Reproduced Under Controlled Conditions." Macromolecular Symposia 238, no. 1 (April 2006): 57–66. http://dx.doi.org/10.1002/masy.200650609.
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Ding, Yufan, Catia Sofia Clemente Salvador, Ana Teresa Caldeira, Emma Angelini, and Nick Schiavon. "Biodegradation and Microbial Contamination of Limestone Surfaces: An Experimental Study from Batalha Monastery, Portugal." Corrosion and Materials Degradation 2, no. 1 (January 13, 2021): 31–45. http://dx.doi.org/10.3390/cmd2010002.
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An experimental study was conducted to assess the nature and extent of the biodeterioration of the limestone in the Batalha Monastery in Portugal. Stone fragments covered with microbial biofilms and lichenous crusts were investigated using Optical Microscopy (OM), Low Vacuum Scanning Electron Microscopy with Energy Dispersive Spectroscopy (LV-SEM + EDS), and X-ray micro-Diffractometry (μ-XRD). Microbial samples were collected from the stone surface, cultured, and analyzed with NGS metagenomic DNA test to classify the bacterial communities associated with the formation of the biofilms. Particulate air pollutants collected on Pall GN-6 paper filters using a cascade impactor were characterized by SEM-EDS + NGS. The results showed that lichens play a major role in biodeterioration by promoting both physical and chemical attack on the limestone substrate via hyphae mechanical penetration along calcite inter-crystalline spaces, the dissolution/leaching of calcite minerals, and the precipitation of secondary minerals such as Ca-oxalates within the stone porosity framework. DNA analyses identified the bacterial communities within the biofilms and their relative abundances. Air quality monitoring results suggest that the microbial population colonizing the monastery limestone could at least partially be derived from the dry and wet deposition of airborne biological particles on the stone surfaces and that S, N, and P-rich air pollutants may have provided nutrients and energy for the bacteria communities, thus indirectly facilitating biofilm formation, the growth of a lichenous crusts, and limestone biodeterioration effects.
Dissertations / Theses on the topic "Biodeterioration of paper"
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Szczepanowska, Hanna M. "Living systems on heterogeneous cellular substrate : contribution to a better understanding of dynamic interfaces of fungal pigmentation and paper in biodeterioration of cultural heritage." Thesis, Ecully, Ecole centrale de Lyon, 2012. http://www.theses.fr/2012ECDL0031/document.
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La bio-détérioration des documents culturels compte parmi les types de détériorations les plus complexes que sont amenés à subir ces objets; et ce, parce qu’elle implique des organismes vivants ainsi que la conjonction de nombreux facteurs. Il existe différentes formes de biodétérioration; les taches de substrat (support?) engendrées par des champignons pigmentés en sont un exemple. Une multitude d’actions se développent aux “interfaces” entre le substrat (support?) et les champignons, depuis le premier contact avec les spores, en passant par la prolifération fongique, jusqu’aux interactions avec l’environnement. L’analyse multi-échelle et multisensorielle de l’interface entre les moisissures pigmentées noires et le support papier est le sujet de ces thèses. Deux types de pigmentations fongiques noires ont fait l’objet d’une analyse; la première apparaissait spontanément sur les œuvres d’art , la deuxième résultait d’une pigmentation déclenchée en biosimulation, sur des papiers connus, dans un environnement maitrisé. Les caractéristiques des papiers telles que le relief et la structure de la surface, la morphologie des champignons, les processus de dépôt de la biomasse pigmentée, ainsi que la prolifération fongique, ont fait l’objet de multiples examens, tant en termes d’instruments que de méthodes :microscopie à lumière transmise, microscopie électronique à balayage (MEB) dans une chambre à pression variable, microscopie confocale à balayage laser, profilomètre confocal à lumière blanche, microtomographie aux rayons L’objectif ultime étant de développer une stratégie de préservation des objets du patrimoine culturel bio-détériorés, le choix des instruments et des méthodes d’analyse était dicté par un souci pratique qui limitait l’échantilllonage des éléments analysés. Ce travail constitue une première tentative afin de mieux comprendre les forces en présence au niveau des “interfaces”, dans le cas des taches sur le papier dues aux champignonsBiodeterioration of cultural materials is one of the most complex types of deteriorations that cultural materials are subjected to mainly, because it involves living organisms and synergy of many factors. There are different forms of biodeterioration, stains of substrate caused by pigmented fungi is one of them. Multitude of events occurs at interfaces between substrate and fungi, from the moment of spores’ first contact with surfaces, next fugal growth and their responses to the environment. Multiscale and multisensory analysis of interfaces between black pigmented fungi and paper substrate was the subject of these theses. Two types of black fungal pigmentations were analyzed; one that occurred on the original artworks the other one was induced in biosymulation on known papers in controlled environment. Paper characteristics, such as surface topography and structure, morphology of fungi and patterns of their pigmented bio-mass deposition as well as fungal growth were examined with an array of analytical instruments and methods: transmitted light microscopy, scanning electron microscopy in variable pressure, confocal laser scanning microscopy, white light confocal profilometer and X-ray microtomography. The ultimate goal was to develop a preservation strategy for biodeteriorated cultural heritage material; therefore the choice of the analytical methods and instruments was dictated by real-life protocols that limit sampling of cultural materials. This works is the first attempt towards a better understanding of interfacial forces in fungal stains on paper
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Hildén, Lars. "The characterization of wood and wood fibre ultrastructure using specific enzymes /." Uppsala : Dept. of Wood Science, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s328.pdf.
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Ambert, Katia. "Étude ultrastructurale de la dégradation des fibres lignocellulosiques par le champignon filamenteux Phlebia radiata." Grenoble 1, 1996. http://www.theses.fr/1996GRE10036.
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Phlebia radiata est un basidiomycete du groupe des champignons de la pourriture blanche, seuls microorganismes connus capables de degrader totalement la lignine du bois. A l'aide de la microscopie electronique a transmission associee a des techniques cytochimiques, nous avons pu mettre en evidence differents modes de degradation provoques par le champignon au cours de l'attaque d'echantillons de bouleau et de peuplier: il peut soit attaquer selectivement la lignine, en provoquant un amincissement progressif des parois secondaires des fibres et / ou en degradant les lamelles mitoyennes, soit degrader simultanement tous les constituants du bois, en perforant les parois et / ou en degradant specifiquement la couche s1 de la paroi. Une etude originale utilisant des anticorps diriges contre des lignines synthetiques nous a permis de visualiser la distribution heterogene des lignines au sein des differentes couches des parois cellulaires. Il apparait que la nature de la lignine a une influence sur le type de degradation. P. Radiata produit des enzymes ligninolytiques, lignine-peroxydases, manganese-peroxydases et laccases, que nous avons localisees au cours de la degradation du bois, grace a des marquages immunocytochimiques. Afin de suivre les enzymes ligninolytiques a un stade tres precoce de leur formation, une approche en biologie moleculaire utilisant des sondes arn a ete engagee pour localiser les arnm codant pour une lignine-peroxydase et pour une laccase de p. Radiata. Ce champignon, comme les autres champignons de la pourriture blanche, presente, par sa capacite a delignifier le bois, un interet potentiel pour l'industrie papetiere. Nous avons montre que la mnp isolee provoque une defibrillation de pates kraft ecrues. Par ailleurs, l'ion manganese complexe a un acide organique, agit egalement en defibrillant les pates. Il apparait que le complexe mniii-oxalate est plus efficace que le complexe mniii-pyrophosphate a blanchir la pate kraft
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Burlat, Vincent. "Étude immunocytochimique de la distribution ultrastructurale des lignines dans la paille de blé et de son influence sur le mode d'action des champignons ligninolytiques : application aux pâtes à papier." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10100.
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Les champignons basidiomycetes filamenteux sont parmi les plus performants pour la degradation de la lignine. Ils doivent leur activite a un complexe enzymatique au sein duquel trois enzymes jouent un role fondamental dans les mecanismes d'oxydation de la lignine. Il s'agit des lignines peroxydases (lip), des manganese peroxydases (mnp) et des laccases (lac). Trois souches fongiques, phlebia radiata (lip, mnp, lac), ceriporiopsis subvermispora (mnp, lac) et pleurotus eryngii (mnp, lac), ont ete selectionnees pour leur aptitude a degrader la paille de ble, dans le but d'utiliser les enzymes les plus efficaces pour la delignification de pates papetieres de paille. L'etude a ete realisee en microscopie electronique a transmission dans le but de montrer comment la nature du substrat et l'equipement enzymatique influencaient la degradation. L'organisation ultrastructurale des tissus lignifies constituant la paille de ble a tout d'abord ete etudiee. Pour cela nous avons mis en uvre de nouveaux marqueurs immunologiques des lignines. La caracterisation des differents types de lignine a mis en evidence des specificites liees a la nature des monolignols constitutifs et aussi a la nature des liaisons inter-unites de type condense et non-condense. L'application de ces marqueurs immunocytochimiques a revele l'heterogeneite de la distribution qualitative des lignines dans les differents tissus et au sein d'un meme type cellulaire. Dans une seconde partie du travail, l'aptitude des champignons a liberer leur enzymes lorsqu'ils se developpent dans la paille a ete etudiee. A l'aide d'anticorps diriges respectivement contre les mnp et les lac nous avons pu suivre la production, par les champignons, de leur enzymes extracellulaires. Ces enzymes sont excretees de facon concomitante au voisinage du site de degradation. Elles n'apparaissent pas dans les hyphes au contact des tissus sains. A des stades de degradation plus avances, l'excretion des mnp et lac a pu etre reliee a la nature de la lignine localement exposee a la degradation. Il a pu etre etabli que l'excretion etait plus forte au contact d'une lignine condensee. L'observation in situ a souligne le role du polysaccharide extracellulaire a l'interface entre paroi lignocellulosique et paroi de l'hyphe, dans le support de certaines enzymes excretees. Les marqueurs de lignines ont en outre revele la presence de fragments de degradation transitant a travers la paroi des hyphes. L'intensite des marquages avec les differents anticorps suggere que les fragments syringiques ont subi une demethylation avant d'etre metabolises dans la paroi de l'hyphe. La delignification des pates chimiomecaniques par des preparations de mnp et de lac purifiees ont montre que ces deux enzymes realisaient des defibrillations locales tres efficaces.
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Sequeira, Sílvia Oliveira. "Fungal biodeterioration of paper: development of safer and accessible conservation treatments." Doctoral thesis, 2016. http://hdl.handle.net/10362/18496.
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Great part of the History of mankind is registered in the form of documents or works of art on paper support. Paper can be deteriorated due to physical, chemical and biological agents. Within microorganisms, fungi are the major paper biodeteriogens. Throughout history, several toxic methods have been used to prevent and stop fungal deterioration on paper based materials. More recently, a growing concern about environmental and health issues has led to the research on new antifungal alternatives, with lower toxicity. However, the existent antifungal methods and compounds still have drawbacks in terms of efficacy, health hazards, damaging effects on paper, or lack of thorough testing. In this context, the present thesis focused on testing and developing accessible antifungal treatments with low toxicity, which could prevent the long term paper deterioration.
The selection of antifungal compounds was made taking into account the results from a literature review on antifungals used on paper conservation, a survey to paper conservators, and a review of antifungals used in cosmetics and pharmaceutical industries, having as a basic premise their low toxicity. Aspergillus niger, Chaetomium globosum, Cladosporium cladosporioides, Penicillium chrysogenum and Penicillium corylophilum were selected as test fungal species. Fungal growth on paper was evaluated by measuring colonization areas and biomass dry weight determination.
A formulation containing parabens and calcium propionate (PBs+CP) presented the best antifungal activity on paper samples, followed by a formulation containing clotrimazole and calcium hydroxide nanoparticles (CLT+NPs), and ultimately 70% ethanol (70%EtOH).
Before application on cultural heritage materials, conservation treatments have to be thoroughly tested to assess if they can cause any damage on the treated materials in the short and long term. The effects of the tested formulations on paper were evaluated in terms of pH, colourimetry, folding endurance and molecular alterations, using moist heat artificial ageing. Besides plain paper, paper previously biodeteriorated by A. niger was tested in order to evaluate the potential of each compound to prevent further deterioration caused by fungal metabolites. The obtained results on biodeteriorated samples illustrate how tremendously damaging the products excreted by fungi can be in the long term. PBs+CP formulation was the only one capable of preventing long term acidification, loss of folding endurance, and discoloration caused by fungal metabolites, but on the other hand, on plain samples, this formulation caused paper discoloration. CLT+NPs formulation significantly prevented the acidification and loss of folding endurance, although causing a minor discoloration on paper at a long term. 70%EtOH had a mild positive impact in the chemical stabilization of paper and did not cause any paper discoloration.
The information provided in this thesis contributes to a deeper understanding on safer options for preventing and treating paper deterioration by fungi and opens the way for further research in this challenging field of heritage conservation.
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Wu, Ying-Fang, and 吳映芳. "Study on Biodeterioration Control of Paper-Based Cultural Relics Using Plant Extractives." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/83794545944393224776.
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碩士國立嘉義大學
林業暨自然資源研究所碩士班
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Abstract The objectives of this study were to investigate the ability of plant extractives to control the biodeterioration of cultural relics. The results obtained are summarized as follow: 1. The strength of filter paper after soaking with various cold water extractives were all increased insignificantly, but the color difference showed an increasing tendency. For paper soaked with hot water extractives, the tensile strength of paper soaked with Phellodendron amurense extractives increased significantly; a better tear strength was found in the paper after soaking with either Aristolochia shimadai or Millettia taiwaniana; tensile strength of Boswellia carteri extractives soaked filter paper showed an increasing tendency significantly.The paper after soaking with various hot extractives tended to yellow, especially for the paper soaked with Phellodendron amurense, but not for the paper with Boswellia carterii. The fungi resistance tests showed that the paper after soaking either cold or hot water extractives was unable to obtain an effective results. 2. The results showed an insignificant difference for the paper strength after paper was soaked with cold alcohol extractives. For the color change, the paper soaked with Phellodendron amurense extractives varied significantly. With the different concentration of alcohol, the tensile strength for the paper after soaking with 95 % of cold alcohol from the mixed extractives of Blumea glomerata and Nicotiana tabacum was increased, and the paper soaked with 70 % of cold alcohol from Millettia taiwaniana and Chrysamthemum cinerariaefolium extractives at various different proportions was better than control one. The best tear strength and the significance of color change of paper were obtained from the paper with 70 % of cold alcohol from Chrysamthemum cinerariaefolium. The results of folding strength showed that the paper soaking with the compound extractives from Millettia taiwaniana and Chrysamthemum cinerariaefolium at 1: 3 was increased significantly. From the paper soaking with 95 % of hot alcohol extractives, the better paper strength was the paper with Boswellia carterii, but not for the one with Phellodendron amurense. The results of fungi resistance for the paper soaking either single or mixed extractives with the method of cold or hot alcohol were still obtained an unacceptable effect, but were better than that soaking with cold or hot water extractives. 3. For the fractionated extractives, the best fungi resistance for Aspergillus niger was the paper with the hexane fractionated extractives from Boswellia carterii extractives with the method of cold alcohol extraction. For Aspergillus flavus, the paper with the hexane fractionated extractives, from both Boswellia carterii and Phellodendron amurense with the method of cold alcohol extraction, was able to obtain an effective results. The paper soaking with fractionated extractives from five sorts of plants was showed the best effect of fungi resistance for Trichoderma viride. The growth rate of fungi was zero till 35 days. For Pencillium citrinum, it was about 5 % until 35 days for the paper with the hexane fractionated extractives from Boswellia carterii. The paper, soaking with hexane fractionated extractives from Boswellia carterii and Pencillium citrinum, was examined with the tests of accelerated deterioration. The results showed that the tensile and the folding strengths for the paper with the cold alcohol extractives from Pencillium citrinum were decreased with the increase of deteriorated time, but the tear strength was in reverse. The paper, soaking with EtOAc fractionated extractives from Boswellia carterii with the method of hot water, was examined. The results showed that three types of strengths were increased with the increase of deteriorated time. The paper color was increased after 10 days of deterioration, especially for the value of △b＊, and was closely to the yellow. The results of the color change also showed that the alcohol extractives was greater than the water one, while the extractives after fractionated with EtOAc were changed significantly more than that after fractionated with hexane. 4. From the tests of termite resistance: the filter paper soaked with sixteen sorts of plants extractives with the method of either water or hot alcohol extraction. The results indicated that the extractives with the infusion of Stemona sessilifolia were the best effect; the termites after 12 days were all death, and the weight retention of paper was the highest than that of the others. 5. Plant extractives contain the compounds of fungi or termite resistant materials, are useful to control the biodeterioration of paper-based cultural relics, and to acquire the requirement of environmental protection as well. Keywords: Plant Extractives, Paper-Based Cultural Relics, Biodeterioration
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Barrulas, Raquel Alexandra Valadares. "Treatment of paper biodeterioration by fungi: An NMR approach to the preservation of human history." Master's thesis, 2019. http://hdl.handle.net/10362/63791.
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The main goal of this dissertation was to develop a new class of materials in order to provide an improved solution to clean fungal staining in paper. Initially a screening of favourable interactions between pigment model compounds and ionic liquids (ILs) was accessed through Nuclear Magnetic Resonance (NMR) protocol. The most promising IL moieties were incorporated into polymer matrices. The final products were tested against contaminated paper samples.
The NMR approach allowed profiling the molecular interactions prevailing between ILs with cations such as 1-butyl-3-methylimidazolium ([BMIM]+), 1-ethyl-3-methylimidazolium ([EMIM]+), 1-butyl-2,3-dimethylimidazolium ([BDMIM]+), 1-benzyl-3-methylimidazolium ([BZMIM]+); and anions such as chloride, trifluoromethanesulfonate ([OTf]-), dicyanamide ([DCA]-) and tricyanomethanide (TCN]-), and model compounds (naphthalene, L-DOPA, veratrole, alizarin and quinizarin) with identification of the structural features in the IL pair responsible for the preferential interactions. The ILs [EMIM][TCN], [EMIM][OTf] and [EMIM][DCA] exhibited better interaction abilities with stronger interactions – hydrophobic and π-π stacking interactions. The monomers with cations [ETVIM]+ and [BVIM]+ as well as with anions [DCA]-, [OTf]-, bromide and [NTf2]- were synthetized and polymerized afterwards, with very high yields. Hydrogels derived from polymeric ILs (PILs) and agarose and/or PVP were obtained. The efficacy of the hydrogels obtained was tested on contaminated paper samples with A. niger, C. cladosporioides, P. chrysogenum and F. oxysporum. The most promising results were obtained with hydrogels with poly([ETVIM][DCA]) and poly([BVIM][OTf]) against P. chrysogenum and A. niger, respectively.
Books on the topic "Biodeterioration of paper"
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Washington), International Biodeterioration Symposium (6th 1984. Biodeterioration 6: Papers presented at the 6th International Biodeterioration Symposium, Washington DC, August 1984. Slough: C.A.B. International, 1986.
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R, Houghton D., Smith R. N, and Eggins H. O. W, eds. Biodeterioration 7: Selected papers presented at the Seventh International Biodeterioration Symposium, Cambridge, UK, 6-11 September 1987. London: Elsevier Applied Science, 1988.
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International Biodeterioration and Biodegradation Symposium (10th 1996 Hamburg, Germany). Biodeterioration and biodegradation: Papers of the 10th International Biodeterioration and Biodegradation Symposium, Hamburg, 15-18 September, 1996. Weinheim: VCH, 1996.
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Frank, Renaud, and Business Communications Co, eds. The changing bag market: Highlighting intermaterials competition. Norwalk, CT: Business Communications Co., 1990.
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Biodeterioration et desinfection des collections d'archives et de bibliotheques: Actes des deuxiemes Journees sur la conservation preventive, Arles, 18 et 19 novembre 1996. Le Centre, 1999.
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Scripta volant: Il biodeterioramento dei beni culturali : libri, documenti, opere grafiche. Bologna: Edizioni Analisi, 1986.
Find full textBook chapters on the topic "Biodeterioration of paper"
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Holt, D. M. "Microbiology of Paper and Board Manufacture." In Biodeterioration 7, 493–506. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1363-9_65.
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Messner, K., L. Alberighi, G. Banik, E. Srebotnik, W. Sobotka, and A. Mairinger. "Comparison of Possible Chemical and Microbial Factors Influencing Paper Decay by Iron-Gall Inks." In Biodeterioration 7, 449–54. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1363-9_60.
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Pinzari, Flavia, and Beata Gutarowska. "Extreme Colonizers and Rapid Profiteers: The Challenging World of Microorganisms That Attack Paper and Parchment." In Microorganisms in the Deterioration and Preservation of Cultural Heritage, 79–113. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_4.
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AbstractMicroorganisms form the backbone of life on Earth. Over billions of years, they have colonized and shaped every possible niche on the planet. Microbes have modelled both the land and the sea, and have created favourable conditions for multicellular organisms to thrive in. Our understanding of how microbial diversity is distributed across natural environments and how microbes affect ecosystems is constantly evolving as public databases are set up and new techniques based on massive sequencing are developed. The microbiome found in a particular anthropogenic environment is generally much less complex than those found in natural ones: there is less competition and the main actors are often linked to survival mechanisms regulated by a few limiting factors. Despite this simplicity, it is very difficult to link cause and effect when seeking to identify the role of individual organisms. In the case of biodeterioration of paper and parchment, even when analysing the individual components of a simple phenomenon, it is not always easy to understand the mechanisms at play. Works of art are unique objects and the elements that determine the arrival and establishment of one or more microorganisms and the direction that the biodeterioration process takes are always different. In some cases, however, there are common denominators and predictable mechanisms. The variables that come into play are examined below.