A First Evaluation of the Usefulness of Kudzu Starch in Cultural Heritage Restoration

In recent times, the use of natural and harmless products for the environment and restorer is taking place in the field of Cultural Heritage restoration. In this sense, wheat, rice and corn starches as adhesives, have suitable characteristics without toxicity risks. A new starch in this field, is th...

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Detalles Bibliográficos
Autores: Lama Ochoa de Retana, Estibaliz, Veneranda, Marco, Prieto Taboada, Nagore, Hernando Echevarria, Fernando Luis, Rodríguez Laso, María Dolores, Madariaga Mota, Juan Manuel
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/50808
Acceso en línea:http://hdl.handle.net/10810/50808
Access Level:acceso abierto
Palabra clave:natural and harmless products
cultural heritage
wheat
rice
corn
starch
kudzu
Pueraria lobata
biological colonization
resistance to microorganism
daidzein
Descripción
Sumario:In recent times, the use of natural and harmless products for the environment and restorer is taking place in the field of Cultural Heritage restoration. In this sense, wheat, rice and corn starches as adhesives, have suitable characteristics without toxicity risks. A new starch in this field, is the Kudzu, an almost pure compound (99.5% starch) that is processed by a natural way from a plant called Pueraria lobata. This is a preliminary study of the potential use of Kudzu starch for the restoration of Cultural Heritage, focusing, firstly, in its capacity as adhesive through a comparative evaluation with common starches. The accelerated aging process carried out proved that Kudzu ensures optimal chromatic behaviour. On the other hand, the main problem in starch paste is the biological colonization. The daidzein, a natural antimicrobial compound implicit in Kudzu starch, confirmed the resistance to microorganism in this preliminary approach. The evaluation of the adhesive capacity, and the reversibility of the starches, suggest that Kudzu starch is a valid adhesive in the field of paper restoration. Thus, the potential of this starch in the conservation of Cultural Heritage is evidenced and its use as cleaner, resistance to biological colonization and consolidant is promising.