Multivariate analysis as a tool for selecting the vine pruning pretreatment towards the highest enzymatic hydrolysis yield

Lignocellulosic materials require pretreatment to remove lignin enabling the enzyme access to the cellulose. This work used multivariate analysis to investigate the acid and alkali pretreatments of vine pruning followed by enzymatic hydrolysis. The best acid pretreatment conditions were H2SO4 1.5%, 120 °C for 30 min, removing 68.7% of hemicellulose, enabling 95.8% of cellulose recovery. However, this treatment was not enough to allow the enzyme hydrolysis. A second step of treatment with NaOH 3.0% at 120 °C without agitation for 60 min led to a material with 75.0% of cellulose and 25.0% of lignin. However, the lowest glucose yield (80.86% and 32.26 g L?1 of glucose) was obtained after the enzyme hydrolysis of this material. The highest glucose yield (98.72% with 35.06 g L?1) was obtained using a pretreated material containing 68.1% of cellulose and 31.9% of lignin obtained after a milder condition (NaOH 2% at 100 °C), thus showing that not all the lignin need to be removed to obtain a high saccharification yield. A less severe pretreatment with no adverse effect on the glucose yield with the advantage of preserving the non-cellulose biomass fractions was effective for vine prune valorization.This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020 unit, BioTecNorte operation (NORTE-01-0145-FEDER000004), the projects Multibiorefinery (POCI-01-0145-FEDER-016403), FoSynBio (POCI-01-0145-FEDER-029549) and Lignozymes (POCI-01- 0145-FEDER-029773) funded by the European Regional Development Fund under the scope of Norte 2020. In Brazil, this study was funded in part by the Coordenaçao ~ de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) - Finance Code 001, Conselho Nacional de Desenvolvimento Científico e Tecnologico (CNPq) and Fundaçao Cearense de Apoio ao Desenvolvimento Científico e Tecnologico (FUNCAP). The authors would like to acknowledge the Central Analytical (Physical Department) of Federal University of Ceara for conducting the SEM analysis and the Centro de Tecnologia Canavieira – CTC/Brazil for the support. E. Gudina and L. Rodrigues acknowledge FCT for the Post-doctoral (CEB-BPD/01/2015/07) and sabbatical (SFRH/BSAB/142991/2019) grants, respectively.info:eu-repo/semantics/publishedVersio

Current issues in global furniture - Proceedings of the 8th biennial Furniture Research Group Conference. Missenden Abbey. Buckinghamshire New University 20 November 2013

'Current issues in global furniture’ attempted to capture contemporary views of where furniture is currently positioned from a world perspective. The first keynote paper firmly placed kitchen design into the field of furniture products showing that it has a similar stylistic development, but with nuances particular to its form and function. Ecological issues were raised concerning durability and the use of recycled components that perhaps to many is not what is expected within the domestic kitchen. Johnny Grey is no ordinary kitchen designer having designed and built kitchens all over the world within a wide range of budgets. Grey shows innovation in his adoption of green principles and especially in reusing components and materials

NOISE EMISSION LEVELS IN GREEK WOOD AND FURNITURE PROCESSING INDUSTRY

ABSTRAC

An Ontology Based Approach for Regulatory Compliance of EU Reg. No 995/2010 in Greece †

Illegal logging has always been considered as a major environmental and social global concern, as it is directly associated with deforestation and climate change. Nowadays, EU Regulation No 995/2010 has been successfully enforced to impede the placement of illegally produced timber within the EU market and therefore to efficiently enhance sustainable forest management and restore ecosystem balance. However, EU 995 regulatory compliance and enforcement itself is quite complex, since it requires long-term conformity, on a common basis for various heterogeneous groups and communities of stakeholders, in a global, even beyond EU, rule regulation framework. To make things worse, such a framework must be applied to the entire supply distribution chain and a wide variety of wood products, ranging from paper pulp to solid wood and flooring. Hence, in such complex and multivariate information environments, an ontological approach can more efficiently support regulatory compliance and knowledge management, due to its openness and richness of semantics for representing, analyzing, interpreting and managing such kind of information. In this paper, a rule-based regulatory compliance ontology is proposed, which fully captures EU Regulation No 995/2010 concepts and compliance rules and guidelines, as well as Greek legislations governing wood trade. The proposed ontology can be the basis for a computerized system providing automated support for illegal wood trade and monitoring EU regulation information provision and audit information storage and analysis. © 2021 by the authors

An Ontology Based Approach for Regulatory Compliance of EU Reg. No 995/2010 in Greece

Illegal logging has always been considered as a major environmental and social global concern, as it is directly associated with deforestation and climate change. Nowadays, EU Regulation No 995/2010 has been successfully enforced to impede the placement of illegally produced timber within the EU market and therefore to efficiently enhance sustainable forest management and restore ecosystem balance. However, EU 995 regulatory compliance and enforcement itself is quite complex, since it requires long-term conformity, on a common basis for various heterogeneous groups and communities of stakeholders, in a global, even beyond EU, rule regulation framework. To make things worse, such a framework must be applied to the entire supply distribution chain and a wide variety of wood products, ranging from paper pulp to solid wood and flooring. Hence, in such complex and multivariate information environments, an ontological approach can more efficiently support regulatory compliance and knowledge management, due to its openness and richness of semantics for representing, analyzing, interpreting and managing such kind of information. In this paper, a rule-based regulatory compliance ontology is proposed, which fully captures EU Regulation No 995/2010 concepts and compliance rules and guidelines, as well as Greek legislations governing wood trade. The proposed ontology can be the basis for a computerized system providing automated support for illegal wood trade and monitoring EU regulation information provision and audit information storage and analysis

Thermal Behavior of a Light Timber-Frame Wall vs. A Theoretical Simulation with Various Insulation Materials

The objective of this paper is to compare the thermal behavior of a light frame timber wall by measuring 15 test samples with various insulation materials versus a theoretical simulation with the use of a software. This work establishes the variance between the two different methods to measure the thermal transmittance coefficient of timber walls. It is verified that the mean percentage alteration between the two methods is 4.25%. Furthermore, this approach proved that with the use of a simulation software, additional readings (humidity, vapor flux, heat flux, and vapor pressure) can also be considered and measured, enhancing the overall development of a timber wall. This can provide additional information regarding to the characteristics of the masonry’s elements assisting in an improved design of a timber wall with upgraded performance. © 2022 by the authors. Licensee MDPI, Basel, Switzerland