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Official websites use. Share sensitive information only on official, secure websites. This article was submitted to Systems Microbiology, a section of the journal Frontiers in Microbiology. The use, distribution or reproduction in other forums is permitted, provided the original author s and the copyright owner s are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. The information on the advances and technology of some recent conservation methods — of organic and inorganic archaeological objects against microbial deterioration is recorded. The work not only contributes to the development of safe revolutionary ways for more efficient safe conservation of items of historical and cultural worth but also serves as a significant diagnostic signature for detecting the sorts of microbial identification and incidents in antiques. Biological technologies environmentally friendly green biocides are the most used recent, efficient and safe strategy acceptable as alternatives to stop microbial deterioration and prevent any potential interactions between the biological agent and the artefacts. Also, a synergistic effect of combining natural biocides with mechanical cleaning or chemical treatments was suggested. The recommended exploration techniques should be considered for future applications. Keywords: inorganic archaeological objects, Organic artifacts, microbial deterioration, fungi, bacteria, new conservation, antimicrobial, biocides. Cultural heritage serves as a reflection of human identity and provides documentation of historical existence and activity. The biological systems and metabolic processes of microorganisms that contribute to biodeterioration can cause the loss and weakening of original materials and structures as well as the discolouration, deformation and loss of ethnographic deposits Romero et al. In order to preserve our cultural heritage for future generations, interdisciplinary research teams embraced by microbiologists, geologists, chemists, physicians, archeologists, and ecologists should be involved in the challenging research opportunities of heritage conservation science. The mechanisms of biodeterioration by microbial communities lead to the right choice of efficient conservation technique Bracci et al. The use of molecular and chemical tools mass spectrometry and next-generation sequencing in the field of heritage conservation has highlighted the intriguing potential of a variety of diverse nanomaterials Beata, Antimicrobial Activities of novel chemical molecules were evaluated by Geweely a , , Ghozlan et al. Several pathological states of soft tissues and internal organs made it possible for researchers to determine the origin of antiques, the course of development and the appearance of a wide range of infections in historical contexts Shin and Bianucci, Metagenomics, transcriptomics, metabolomics and proteomics are systemic techniques referred to as omics methods which used to investigate the biodeterioration of cultural stuffs Gutarowska, According to the materials used and the manufacturing processes, artifact materials may generally categorize using common typologies. Organic artifacts make up a significant amount of the items now shown in museums across the world, thought to be particularly susceptible to deterioration since microbial attacks can cause their destruction with different effects Fabbri and Bonora, The primary difference between the rate at which inorganic artifacts deteriorate and the rate at which organic stuff degrades is how rapidly organic matter degrades Bauer et al. A typical museum setting has a wide variety of microbial species found in nourishing environments that have a special affinity for glue, starch, cellulose and protein-rich materials fur, wool, silk and skins as reported by Bangstad The traditional chemical and mechanical treatments generate unsatisfactory results or have short-term impacts. The researchers looking into the world of natural chemicals plant extracts, green biocides or bio-based belongings as alternatives that will be more readily biodegradable and environmentally non-threatening techniques safe for human health and the environment for removing biological patinas. Numerous of these green biocides are blends of polypeptides produced by plants, including phenols, polyphenols, terpenoids, essential oils, alkaloids and lectins Cremonesia and Casoli, Also, El-Shahawy et al. According to Palla et al. Traditional biocides are still widely used to counter biodeterioration although their toxicity Villa et al. Controlling the microbiological degradation of cultural assets is related to the fact that various methods for determining treatment efficacy are frequently subjective and non-replicable ICOMOS, A complex interaction between ambient temperature and humidity is crucial to the in situ conditions and variabilities of the water available on the surface and inside the cultural heritage, so to improve cultural heritage conservation research, more precise measurements at the sampling location and the time of the sampling are required Chen and Gu, The effectiveness of several control techniques on the same items is crucial for environmental safety Mascalchi et al. It is possible to lower the populations of potentially pathogenic heterotrophic bacteria that produce acid by installing air-purifying systems in exhibition rooms, such as photocatalytic ionizers and microclimate-controlled settings, which are increased by a variety of anthropogenic activities. The conservation of ancient artifacts against microbial decay faces several difficulties, so every effort should be taken to preserve historic materials and transmit them to future generations Geweely, The effectiveness of new technologies and practices should be enriched to develop the environment for both people and cultural heritage items Katsivelal et al. As a result of technological advancements, more techniques and their combination necessary to remove unwanted microorganisms have opened up new opportunities for both microbiologists and conservators Rusu et al. The current study aims to propose a new informative study to aid the researchers in considerate recent, efficient and safe preservation techniques for the conservation of archaeological organic and inorganic objects against microbial deterioration as well as their benefits and drawbacks on artifacts, the environment and human health in addition to future perspectives in this field. In-depth insights into biodeterioration may be possible through a combination of physicochemical studies, and culture-dependent and culture-independent characterization of bacteria and fungi involved in the destruction of various historical materials Pyzik et al. Also, Meng et al. According to Gutarowska who reported that repeated biocidal treatments lead to resistance in the target biological agents leading to change in the biofilm structures and encouraging the formation of more threatening biodeteriogens, so omics methods used to analyze the biodeterioration of cultural properties. It is crucial to create systematic and accurate microbial monitoring procedures for the protection of delicate ancient objects from microbial degradation and assemble significant information about the practices and habits of a particular historical era. The significance of biofilms on historic surfaces has been examined in recent conservation literature, taking into consideration both biodeterioration and bio-protection mechanisms Favero-Longo and Viles, New analysis insights into microorganisms and their metabolisms was applied for the protection of artworks and conservation in terms of cost, effectiveness, safety and environmental sustainability Favero-Longo and Viles, The examination of the status of conservation and treatments of monuments and cultural heritage items has expanded by new analytical techniques like high-throughput next-generation sequencing De Leo and Jurado, The key elements controlling the growth of bacteria and fungus on organic artifacts have been identified as a possible use for nanomaterials in the preservation of organic cultural heritage objects. Microbial species frequently have an impact on a variety of artifact kinds of Ascomycetes , Aspergillus , Paecilomyces , Penicillium , Cladosporium , Eurotium Chrysosporium , Chaetomium , Monoascus , Epicoccum , Trichoderma and Stachybotrys that penetrating through destruction or enzymatic action, causing staining of the artifact the foxing phenomenon or result in the appearance of traces or hazardous substances Fistos et al. The visual examination was used to assess the fungal degradation elements of historical artifacts, including color change, brittleness, weakness and erosion. Four hydrolytic enzymes Cellulase, amylase, gelatinase and pectinase that are highly active and essential for biodegradation and breakdown by deteriorating fungal strains. Additionally, employees must receive training on how to get rid of deteriorating spurs dust and mold Abdel-Maksoud et al. Borrego et al. The identification of fungi in the nasal mucosa of the archive employees was noted, were Aspergillus , Cladosporium , and Penicillium were the most prevalent genera. The skin of Asthma was identified as occurring in Wei et al. The fungus which has strong biodegradation abilities and high enzyme capacity was Aspergillus , which poses a threat to the preservation of cultural heritage Romero et al. Recent developments have revealed that some microbes and microbial-based technologies may play a role in the preservation of cultural heritage and offer valuable benefits Bauer et al. Fourteen and eleven biodeteriogenic species were isolated from the indoor air and dust, respectively, while the majority of the genera were Aspergillus , Cladosporium and Penicillium , demonstrating the possible risk of the fungal environments for the protected recorded history Borrego et al. The fungal concentrations ranged from Cladosporium and Aspergillus were the two most common genera. The earliest discoveries for the surroundings of archives were Coremiella, Talaromyces , Aspergillus uvarum , Alternaria ricini , and Cladosporium staurophorum , where xerophilic species A. They are also opportunistic pathogens and toxigenic species, where their concentrations were higher than the recommended, demonstrating the potential risk to which the archive staff was exposed in a circumstantial way Borrego et al. Artefacts made of paper have unique characteristics that make them more vulnerable to deterioration. These characteristics include their physical characteristics as well as the presence of ink and pigment on their surface. Each of these elements has the potential to accelerate the microbial deterioration of paper artifacts, making the development of remediation techniques an essential area of research Abdel-Kareem et al. Archaeological records should be preserved carefully for future generations as they are seen to be a valuable resource for a deeper understanding of our culture and heritage Buragohain et al. Microorganisms destroy all fabrics by reducing their tensile strength and flexibility Hussien, Buragohain and Kumar , Roberto et al. The greatest amount of fungal contamination found in textiles was Aspergillus sp. In two of the textile settings, A. Electrostatic dust cloths was used as a sampling technique for conservation and restoration and the exposure to air pollutants is reduced and effective cleaning procedures may make the working environment safe Viegas et al. The irradiation parameters for the highly resistant colonizer Cladosporium sphaerospermum and the naturally existing microbiota collected on paper samples were examined In vitro. Zinc oxide nanoparticles can provide benefits like self-cleaning capabilities and protection for archaeological papers with no discernible difference in the tensile strength of the paper treated with the nanoparticles Franco-Castillo et al. Fouda et al. The main target of the Zn II metal is the microbial cell wall, which is crucial for growth and zinc metal can quickly change the microbe morphology as shown in Figure 1. The use of inorganic nanoparticles for the preservation and preventive treatments of paper artifacts was recorded by Fistos et al. Marker proteins are located in Lane 1, One pure band of The microscope was used to verify that the activities of bacteria and fungi had stopped Hosnil et al. Ilies et al. The essential oils of lemon Citrus limon , mint Mentha piperita and lavender Lavandula angustifolia proved to be inexpensive, simple and non-destructive solutions for cleaning and prevention the spreading of bacteria and mold spores as a great alternative to the conventional chemical treatments used to preserve cultural heritage artifacts that are afflicted with six distinct species of yeast Candida guilliermondii , C. Aspergillus and Staphylococcus have been demonstrated to be inhibited by lavender oil, whereas Cladosporium and Botrytis were inhibited by the mint essential oil. Essential oils can be thought as fabric fungal decontamination treatments that help to preserve the clothing on display in museums. Gram-negative bacilli, Gram-negative cocci and Gram-negative bacilli. The sterilizing process was finished inside the closed room, which was constructed of polyethene Nabil et al. The micro-morphological patterns created during microbial degradation of lignified cell walls of buried and waterlogged archaeological woods is a crucial diagnostic signature for identifying the types of microbial attacks present in woods and help in the development of targeted methods for more effective preservation of wooden objects of historical and cultural importance. Also, the identification of ancient wood species and description of their weathering processes are essential first stages in the scientific preservation of wooden cultural heritage Singh et al. Identification of the wood species and characterization of its weathering processes are essential steps in the scientific approach to the preservation of wooden cultural material, Although numerous priceless wooden artifacts from ancient Egypt can be found in museums, there is comparatively little knowledge about the type of wood used and how well they are being preserved. Five species of hardwood and softwood, including Tamarix manner , T. Microcrack development, biological deterioration patterns fungal colonization indicated the existence of fungal hyphae and conidial spores on the wooden objects. Microorganisms that congregate on wooden shipwrecks and use the matrix of the wood to develop and multiply can cause bio-corrosion and biodegradation when an ancient shipwreck is exposed to the air. Acinetobacter was the most prevalent bacterial genus, breaking down lignin and cellulose whereas Penicillium , Aspergillus and Cerrena were the most prevalent fungus genus destroying lignin, providing a reference point for the preservation of the ship in the future Ma et al. The primary degraders of prehistoric wood discovered in damp situations are erosion bacteria. Chemical investigation proved that it significantly depletes holocellulose causing enzymatic unlocking of the lignocellulose to get access to the holocellulose portion of the cell wall leading to chemical alterations in the lignin polymer Pedersen et al. Appiah-Kubi et al. Additionally, Broda and Hill noted the need to conserve waterlogged timber by utilizing some modern, environmentally friendly preservatives and effectively protecting old timber objects Broda et al. The susceptibility to biodegradation of ancient wooden artifacts could be eliminated by using some modern, bio-friendly preservatives, offering effective protection. Essential oils have been used in conservation approaches that are harmless for people and the environment, for cultural civilization, effective against a broad range of microorganisms and capable to be used in remote regions. This has allowed us to accept their use in replacing artificial biocides in the environmental conservation of cultural objects. Thymus vulgaris L. Lamiaceae essential oil and hydro-alcoholic were applied to stop microbial foundation Aspergillus sp. The idea was that after alcohol loss, the T. Palla et al. Four biocidal products repressed the growth of the fungal types in vitro efficiently. Laser is a convenient, selective and contactless technique, which does not announce any damaging chemicals to people, environment and the culture material. However, they are expensive, not selective and have restrictions on the application in remote regions. It has been used for the management of A. The great energy transmission involved by laser radiation breaks DNA chains and protein links, which affects the loss of all major protein bands as shown in Figure 2. Omar et al. As fungi and bacteria quickly attack and metabolize wood due to its typical sensitivity to biological attacks, physical, chemical, and morphological changes. Jia et al. The predominant fungus was Fusarium , which might have been introduced by tourists or conservation restorers from the outside environment. The biocide susceptibility assay revealed that isothiazolinones efficiently suppress the growth of fungal isolates. Lindane, pentachlorophenol, alkaline chloride, sodium chloride, fluorosilicates were found to be reliable and effective materials for preserving and restoring wood and wood-based products. These methods included fine and coarse spraying, brushing, smoking, soaking or dipping, impregnation, injection, and infusion Appiah-Kubi et al. All paintings are crucial elements of cultural heritage, they are made of organic compounds oils, waxes, gums, sugars, polysaccharides and proteins that can help a variety of microbes flourish and could be used to develop a plan to reduce the number of visitors and manage microorganisms to halt the biodegradation process Suphaphimol et al. Ancient wall paintings may experience esthetic modification as well as structural harm from microbial decay. The main bacterial genera were Pseudonocardia and Streptomyces , while the main pathogenic fungi belonged to the Ascomycota phylum. Dead insect remains and organic adhesive ingredients used to create the wall paintings serve as vital nutrients that encourage the rapid growth of bacteria and saprophytic fungi on the wall paintings. The cave door should be opened more frequently according to the weather to prevent the interior from being too humid and also the exogenous nutrients such as dead insects inside the cave are cleaned Ding et al. The dark blotches in the nearly year-old underground ancient tombs are due to the microbial decay of the brick mural paintings. There were 22 isolated fungi, all of which belonged to the Penicillium and Aspergillus genera. Aspergillus , Penicillium , Cladosporium , Alternaria , Curvularia , Chaetomium and Trametes were the seven dominant genera of detected fungi. In the site with the most visitors to the painting in Thailand temples, Aspergillus was the most prevalent genus among the different fungi communities. While the Neodevriesia genera dominated the field of mural painting. The most common type of bacteria was gammaproteobacteria. The number of visitors was connected to human-caused microbial pollution, while the percentage of saprotrophs in the local microbiome was higher in the temple Suphaphimol et al. On wall paintings kept in a Chinese museum, eight fungus taxa were found, where Cladosporium , Penicillium , Alternaria and Filobasidium being the most prevalent. The spread of airborne fungi is influenced by relative humidity, temperature, and seasonal precipitation. The details for the warning conservation of cultural artifacts are kept at nearby locations and in museums Duan et al. The isolation of three species of Trichoderma Trichoderma harzianum , T. The optimal conditions for enhancing Trichoderma spp. The safe and clean method for creating nanoparticles NPs as green chemistry is seen to be an appropriate strategy for the environmentally friendly creation of ancient parchment. Tea tree leaf extract was utilized to create environmentally safe silver nanoparticles Ag-NPs. These NPs have interesting physicochemical characteristics, such as an ultra-small size, a high surface-to-mass ratio, and a peculiar reactivity with organisms, making them useful for both organic and inorganic materials. Some nanoparticles NPs made of zinc oxide ZnO , copper Cu , titanium dioxide TiO 2 , or silver Ag exhibit intriguing biocidal properties against degrading bacteria. The environment and heritage materials are continually threatened by biocidal treatments since they are short-lived and regularly repeated Wawrzyk et al. The microbiostatic effect of the green synthesis Ag-NPs disinfection process was attained at a concentration of 0. Ag-NPs may therefore be a viable option for the long-term protection of historical parchment from microbial biodegradation Saada et al. New technologies must be used to diagnose, treat and safeguard wall paintings and murals, including the use of omics technologies for diagnosis and nanoparticles for treatment Wu et al. The essential oils function better against microbes when prepared as nanoemulsions, which makes it possible to achieve biocidal action at lower concentrations without negatively impacting any of the properties of the disinfected parchment. However, applying the oil in its regular form had an impact on the optical characteristics of the artifacts, so historical parchment can be properly disinfected using essential oils nanoemulsions, which are thought of as an eco-friendly technique, without suffering any negative effects on their distinguishing qualities Saada et al. The leaf extract was efficient in both lowering the microbial load and stopping the re-proliferation of germs over time up to a year later Sprocati et al. The essential oil was employed by Palla et al. The biocidal ability of two plant derivatives, as the essential oils of oregano and cloves were assessed as a potentially new and environmentally friendly cleaning and conservation technique for canvas paintings. The fungus genera Penicillium , Aspergillus , and Cephaloteca as well as the genus Bacillus bacterium were the dominant colonizers of the canvas. Green natural biocide was achieved by the growth of Trichoderma species as antifungal agents in the tomb and was used against Alternaria alternate , A. Trichoderma species can be used to regulate the deterioration of cultural assets. It is a risk-free, environmentally acceptable method that can be used anywhere, in vivo or in vitro , in cultural heritage open doors or museums ElHagrassy, Interestingly, Bacillus -based therapies have been proposed to protect cultural heritage items against fungi Silva et al. Jurado et al. Also, Catto et al. Enzymes can therefore be viewed as practical resources and reliable operating procedures for practitioners in various conservation fields. The advancement of enzyme usage in the conservation of art was found by Cremonesia and Casoli The critical and historical perspective of scientific studies is provided by the use of microorganisms and enzymes in the bio-cleaning of cultural heritage artworks Ranalli and Zanardini, On the other hand, Nabil et al. Additionally, the mechanical cleaning process offered a secure method to be used in fabric conservation. Also, chemical treatment is required to get rid of microbiological issues. Eldeeb et al. Scientists can reconstruct the evolution and appearance of past diseases as well as the customs and lifestyles of ancient societies acknowledges to mummy investigations Bianucci et al. Mummies are a vital and valuable component of Egyptian and world cultural heritage. They might be viewed as intricate artifacts constructed primarily of linen, salt, essential oils, and mummified materials. Xerophiles osmophiles grow on dry meat and halophilic fungi can also handle high salinity, the range of materials utilized and environmental variables have a considerable impact on their infection by xerophiles and halophilic fungi that work together for mummy deterioration. Therefore, conservation techniques must be created effectively to maintain the remains without diminishing their significance as a source of biological and scientific information Ali et al. The Natron salt and the water molecules of humidity reacted to create a basic media and the humid environment encouraged microbial development Magdy et al. The study of human mummy samples revealed contamination by halophilic bacteria to several mummies and had highly mold-contaminated surfaces Bianucci et al. The chemical, physical, biological and environmental origins are crucial for the proper conservation of ancient remnants Mustieles et al. Humidity and aeration are the two more important elements that may stop certain strains from growing. The taxa Aspergillus sp. Analysis of the chemical and surgical procedures used on cadavers in mummies from the 16th to the 20th centuries was detected by Bianucci et al. Cellulase, amylase and protease activities were used to assess the possible bio-degradative microbiota present in samples recovered from two Spanish mummies from the 18th and 13th centuries. By using the PCR technique, Mycobacterium tuberculosis -specific gene was the potential existence pathogen Mustieles et al. DNA was used to examine the microbiological deterioration of archaeological bone by bacteria and fungus, which gives information about the presence rather than the activity of incidental taxa taxa that are present but not actively destroying bone Emmons et al. Geweely et al. The variety of materials used and environmental factors have an impact on how susceptible it is to fungal colony infestation. Mummy deterioration due to microbial activity is a widespread issue, keeping it clean over time and safe for future generations is difficult. One of the main elements that significantly contribute to mummy destruction is fungus deterioration. New chalcone derivatives were created, and their antifungal properties were tested in vitro against 13 isolated deteriorating fungal species A. The bulk of the isolated core phyla was Ascomycota A. Also, Ali et al. The enzymatic synergistic bacterial action of Micrococcus sp. To prevent contamination, the mummy has been irradiated and placed in a sterile case in a museum Cortella et al. Using ribosomal ribonucleic acid rRNA analysis, Bacillus jeotgali , Kocuria turfanensis , Microbacterium imperial , Micrococcus luteus , and Bacillus megaterium were isolated from the degraded mummy and were inhibited by three types of microbicides nanomaterials zinc oxide , plant extraction Ceratophyllum demersum and chemical materials 4-chloro-m. A historical building is characterized as one or more structures containing a variety of artifacts that need to be continuously preserved to maintain their historical architectural esthetic and cultural significance. Each ornamental room in the building serves as a cue to jog memory because each piece has a distinct mental orientation Hasan, One of the research areas preservation of historic structures and monuments is stone degradation. The metabolic events that take place in the carbon, nitrogen and sulfur cycles are primarily responsible for the microbial degradation of inorganic materials. The availability of water, the presence of microorganisms, the movement of soluble salts during wet and dry cycles, and other material porosity properties all have a big impact on how durable stone materials were degraded. The most crucial component before microbial colonization and subsequent biodeterioration processes begin is the water linked with cultural heritage items Li and Gu, The primary problem for microbiologists is the removal of bio-deteriorated microorganisms from stone De Leo and Jurado, Physical, chemical, and microbiological elements have all been formally linked to stone biodeterioration. There are a direct relationship between mineral dissolution reactions and microbially catalyzed contributions to them Qian et al. The microbial weathering phenomena toward limestone were studied by Ahmed and Mohamed , while the microbial biodeterioration processes affecting the sandstone cultural heritage will help in the protection and management of the ancient temple was reported by Ding et al. Rubrobacter , Arthrobacter , Roseomonas and Marinobacter taxa are thought to be responsible for the creation of colored biofilms, while Ulocladium, Cladosporium and Dirin a connected to structural damage. The most significant detergents are Bryobacter , Chroococcidiopsis , Rubrobacter , Blastocatella , Sphingomonas and Loriellopsis , where the investigation of phototrophic biofilms revealed the existence of many predators operating naturally to regulate the growth of photosynthetic-based biofilms in caves De Leo and Jurado, Kosznik-Kwasnicka et al. To improve the conservation of stone biodeterioration for protective management, it is crucial to identify the key microbial biochemical events. The number of genes related to acid tolerance and chemotaxis increased in bacteria living in granite, while bacteria living in limestone have more genes related to photosynthesis and radiation resistance Brewer and Fierer, The variety of eukaryotes considerably differed with different geographic locations rather than seasons and the diversity of prokaryotes in the archaeological limestone showed considerable temporal and regional changes Wang et al. The core phyla of fungi were affiliated with Ascomycota Wu et al. There are two strategies to combat biodeteriogens, according to Mascalchi et al. The use of essential oils for disinfection is aesthetically acceptable and has low toxicity for humans and the environment, ensuring a high standard of living for workers and users and preserving cultural heritage. The development of environmentally friendly biocides against microbial deteriorated tombs, where opening, flooding, upper vegetation, visitor entrance and conservation treatments play a significant influence in the biodeterioration processes Caneva et al. Conventional cleaning techniques with controllable, selective, contactless, and ecologically friendly natural biocides have been studied on outdoor stone surfaces Barreiro et al. Also, due to its advantages over conventional cleaning procedures, where it is controlled, selective, contactless, and ecologically benign, nano-encapsulated essential oils have been studied on outdoor stone surfaces by Romano et al. Lavender essential oil and liquorice leaf extract were employed as plant derivative biocides to combat phototrophic biofilm that was developing on stones Rugnini et al. Environmentally friendly stone conservation treatments are moving toward low-impact biocides such as plant natural extracts to combat microbial deterioration. To create two separate combinations for the treatment of the statue, four essential oils Coridothymus capitatus , Syzigium aromaticum , Cinnamomum zeylanicum , and Origanum vulgare were selected and combined. Because of the low concentrations employed, there is no environmental bioaccumulation and no risk to humans. Additionally, the statute will be continuously observed to document the long-term effects of the applied therapies Spada et al. The application of a bio-cleaning procedure on granite, the potentiality of natural biological control of phototrophic biofilm in caves, the biocidal activity of natural products derived from plants, and other green treatment methods are effective but not harmful to the material, operator, or environment Sparacello et al. Evaluation of the impact of the principal fungus and bacteria causing the biodeterioration of gypsum work using essential oils thyme, clove, cinnamon, garlic, castor, and olive was evaluated by Khali et al. The most efficient natural product for preventing the biodeterioration of Gypsum archaeological work was garlic oil, which had the best effects on all isolates. A unique comparison of chemical, natural essential oil, and physical ozone for preservation of archaeological items against microbial deterioration was documented by Geweely et al. Chemical preservation of historical artifacts poses a risk to both the environment and human health, as well as degradation erosion and surface damage. Microbial burdens can be successfully reduced by ozonation, where ozone may replace chemical sanitizers as a common sanitizing agent due to its strong oxidizing capacity and spontaneous disintegration. The effectiveness of mixing eugenol with an environmentally friendly emulsifier Phyto-derivatives as new biocides, such as the potential of allelopathic compounds generated from lichens, appear to be promising in the field of cultural heritage conservation Caneva et al. The most effective combination was biocide and water repellent Wang et al. Additionally, the combination of a conventional chemical substance with natural varnishes, such as tributyltin naphthenate, o-phenyl phenol, and benzalkonium chloride, should help shield polychrome sculptures from environmental fungi and bacteria without affecting the original materials or the visual appeal of the artworks Romero-Noguera et al. The majority of the tomb murals that have been kept at their original locations are at risk from microbial deterioration, and the long-term management of these microorganisms is a perennial issue in the field of cultural asset conservation. Numerous mycelia with conidia were present, and the culturable fungi in the white mycelium samples belonged to the six genera of the Ascomycota phylum. Dichlorophene compounds 0. To achieve long-term prevention to the tomb, it is advised to combine emergency protection, environmental regulation, and follow-up monitoring in the future Fasi et al. Ionic liquids technologies, which can help produce new formulations of antifouling and antimicrobial surface coatings, are one area of research that Lo Schiavo et al. The present study reveals that the effective conservation methods for each unique cultural heritage piece consequently should be on a case-by-case base based on scientific evidence. Interdisciplinary methodologies are required for effective preservation techniques combined with microbiologists, geologists, chemists, ecologists, archeologists and physicists. The Ascomycota phylum contained the majority of the pathogenic flora, which are problematic to destroy or eliminate due to their capability to flourish inside the artifacts is represented by Aspergillus which was a dominant species of black fungus that can survive inside an object and resist a range of stresses. Both human allergies and microbial contamination from humans were associated with a high visitor count, and this information might be applied to setting a strategy to diminish the number of visitors. To develop a science-based protection strategy monitoring microbial degradation including the use of omics technologies for diagnosis, environmental conditions continuous airflow, ventilation, photocatalytic ionizers, temperature , anthropogenic effects and knowledge of the mural materials structure. New biological technologies green biocides represent a promising recent strategy to protect cultural heritage from biodeterioration as save eco-sustainable alternatives harmless to humans and the environment, environmentally friendly, safe, ecologically acceptable alternatives stop microbial deterioration, assess the perseverance of treatment on surfaces over time with a short-term and long-term investigation, evaluate the costs, avoid any possible interactions between the biological agent and the artifacts. Also, a synergistic effect of combining natural biocides with mechanical cleaning or chemical treatment was suggested recently. The author declares that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher. As a library, NLM provides access to scientific literature. Front Microbiol. Find articles by Neveen S Geweely. Geweely, ngeweely cu. Received Jan 17; Accepted Feb 13; Collection date Open in a new tab. Similar articles. Add to Collections. Create a new collection. Add to an existing collection. Choose a collection Unable to load your collection due to an error Please try again. Add Cancel.

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