Crisanto Velázquez-Becerra^1,*, Gu Yen Ambriz-Ortiz¹, Rafael Torres-Martínez², Mauro Manuel Martínez-Pacheco³

Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 2165-2181, 2023, DOI:10.32604/phyton.2023.026954

Abstract Wood is a lignocellulosic material that, because of its organic nature, is a source of nutrients for bacteria, fungi, and insects. Incisitermes marginipennis (Latreille) is an interesting dry wood-boring termite. Because it is an extremely destructive pest, difficult to control due to its cryptic lifestyle, and for its role in the biogeochemical cycle of carbon and other elements; it is a fundamental organism. The use of less toxic and eco-friendly substances is important for protecting domestic, cultural, and historical heritage made of wood or lignocellulosic materials. The aim of this study was to evaluate the biological activity of various naphthoquinones… More >

Enrique Cárcamo-Ibarra¹, Mauro Manuel Martínez-Pacheco², Abril Munro-Rojas¹, Jorge Enrique Ambriz-Parra¹, Crisanto Velázquez-Becerra^1,*

Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1795-1808, 2022, DOI:10.32604/phyton.2022.020578

Abstract Wood is mainly made up of cellulose, hemicelluloses, lignin polymers and other organic and inorganic substances, making it susceptible to deteriorate by various biological agents. Tectona grandis L.f. (Teak) is a timber species with high resistance to biological deterioration, valued for its durability, beauty, and mechanical resistance. The purpose of this work was to evaluate the antifungal activity of crude extracts from teak on various fungi that cause wood deterioration. For this, Teak heartwood was obtained, then fragmented and pulverized until obtaining a flour which was used for compounds extraction using the Soxhlet technique coupled to a rotary evaporator through… More >

Freddy Muñoz¹, Carolina Tenorio¹, Róger Moya^1,*, Angel Navarro-Mora²

Journal of Renewable Materials, Vol.10, No.1, pp. 1-17, 2022, DOI:10.32604/jrm.2022.017392

Abstract Fabrication and use of Cross Laminated Timber (CLT) using tropical woods is still limited at present. Therefore objective of the present study aims to determine the possibility of using CLT panels of 3 and 5 layers, fabricated with Tectona grandis and Gmelina arborea wood using adhesive of isocyanate polymer emulsion system catalyzed with polymeric isocyanate. Delamination, water absorption, density, flexure test, compression and glue-line shear were evaluated using ANSI/APA PRG320-2012 ASTM D198 and ASTM D4761 standard. The results showed that CLT panels of T. grandis presented higher values of density, less water absorption and lower delamination, with no evident differences… More >