Luigi Todaro

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• Professor
• Associate Professor PhD at University of Basilicata

The objective of this work was to investigate the selected properties of particleboard (PB) containing waste rubber – a mixture of carpets and isolators (GWR) and tires (GWT) from discarded automobiles. Mechanical (tensile strength (IB), bending strength (BS), physical (water absorption (WA), thickness swelling (TS) after 2 and 24 h of immersion),...

Antioxidants are crucial in counteracting the impact of free radicals, thereby preventing cell damage. Extracts from orange, apricot, and olive tree pruning, classified as by-products according to environmental laws, underwent examination of their antioxidant properties. In the present investigation, data on the antioxidant activity of extracts of...

Laser cutting of wood offers precision and speed advantages over traditional methods. This study investigates the effect of CO2 laser processing parameters such as position of focal point, cutting speed, and gas pressure on cut surface quality of beech wood (Fagus sylvatica L.), measured in terms of color change and surface roughness. Additionally,...

In the era of rising global temperatures, there is the need to develop innovative and sustainable building materials with energy-efficient thermophysical properties to reduce the energy consumption in household buildings and industries. The investigation contributes to this initiative by examining the thermal behavior of particleboard panels made o...

The study aims to examine the environmental significance and practical applications of eco–friendly particleboard suitable as a construction material for energy–efficient buildings, furniture, and packaging. The knowledge of thermophysical properties of particleboard made of spruce wood chips with the addition of various components such as tires, s...

From a circular bio-economy perspective, biomass valorization requires the implementation of increasingly efficient extraction techniques to ensure the environmental and economic sustainability of biorefining processes. This research focuses on optimizing the specialized metabolite extraction of Turkey oak chips from Quercus cerris L. by applying a...

Please cite this article as: Rupali Tiwari, Vlastimil Boháč, Richard Hrčka, Anton Yi Ma, Mattias K. Gustavsson, Luigi Todaro, Peter Antov, Lubos Kristak, Advancing sustainable practices: Transient plane source methodology for analyzing thermophysical properties and enhancement wood as a thermal insulator, Developments in the Built Environment Volum...

Wood extractives have proven strong anti-oxidative properties which may be used to mitigate surface deterioration caused by photolytic effects and free radical formations. An interesting challenge regarding wood extractives is understanding how they behave in terms of treating natural wood surfaces to reduce anti-oxidative processes that arise from...

The moisture content of wood influences its machinability and the resulting quality of the machined surface. This study aims to explore the impact of varied moisture content on the final quality of beech wood cut by a CO2 laser (Fagus sylvatica L.). Laser cutting was performed on beech lumbers conditioned at moisture levels of 0%, 8%, 12%, and 18%....

In recent years, long periods of drought and heat waves have become increasingly frequent, causing forest dieback phenomena that make stands more sensitive to biotic stressors. How trees may respond to extreme climatic events and which metabolites are involved under stress conditions is still not clear. In this study, we analysed by SPME how diebac...

The reduction of hydrophilic characteristics and the migration of extractives induce important changes in terms of wood surface wettability. This research involves the application of two different strategies of wood modification, namely thermo-vacuum cylinder (TVP), and press-vacuum plant (PVP) (Ferrari et al. 2013, Cetera et al. 2019). The details...

This study provides an overview of the forests of Basilicata, Southern Italy, including their recent history, dominant forest types, current management, and vulnerability to climate change and wildfire. It outlines silvicultural and management proposals that can be implemented in the new forest plan that the Basilicata Region is about to adopt. The...

This study aimed to investigate the combined effect of steaming and heating on the equilibrium moisture content (EMC) of Turkey oak (Quercus cerris L.) wood over a nine-year period. The study also aimed to determine the impact of steaming on water absorption and water permeability, crucial for the durability of the species against environmental fac...

The knowledge of the thermal properties of wood namely thermal conductivity, thermal diffusivity, and volumetric heat capacity of wood, which plays a key role in defining the heat transfer behavior and temperature distribution in timber-framed assemblies is not limited to room temperatures, When working with wood and wood-based materials the projec...

Article is available at IOP web : page:https://pubs.aip.org/aip/acp/article/3126/1/020020/3267863/Investigation-of-thermophysical-parameters-of *********************************************************************** Citation: Rupali Tiwari, Richard Hrčka, Vlastimil Boháč, Roman Réh, Valentina Lo Giudice, Luigi Todaro, Lubos Kristak; Investigation...

Article is available at IOP web page: https://pubs.aip.org/aip/acp/article/3126/1/020004/3267847/The-influence-of-the-flatness-of-the-particleboard. ************************************************************************** Citation: Vlastimil Boháč; Rupali Tiwari; Lubos Kristak; Roman Réh; Ján Hudec; Vladimír Štofanik; Valentina Lo Giudice; Luigi...

The moisture content of wood influences its machinability and the resulting quality of the machined surface. This study aims to explore the impact of varied moisture content on the final quality of beech wood cut by a CO2 laser (Fagus sylvatica L.). Laser cutting was performed on beech lumbers conditioned at moisture levels of 0%, 8%, 12%, and 18%....

The vapor pressure deficit reflects the difference between how much moisture the atmosphere could and actually does hold, a factor that fundamentally affects evapotranspiration, ecosystem functioning, and vegetation carbon uptake. Its spatial variability and long-term trends under natural versus human-influenced climate are poorly known despite bei...

The objective of this work was to investigate the rate of knife wear during the beech wood chipping process and to evaluate the changes in the chemical and microscopic structure of wood. A knife coated with AlCrN was selected for the study. This coating creates an abrasion resistant layer on the knife and has a higher resistance to abrasive wear an...

The main objective of the study was to examine the thermophysical properties of Alder wood specimens as they relate to their volumetric density. Wood samples were subjected to controlled exposure conditions to assess their behavior after storage under room conditions of around 65% air humidity and a temperature of 20°C. This paper focuses on the re...

The energy efficiency of buildings is assessed on the base of thermal insulation properties that can help to save energy costs as well as environment. The wooden materials are widely used as they become significantly recyclable and nature-friendly. Their thermal insulation properties have to be known for construction purposes. The modern experiment...

The article investigates the thermophysical parameters of Turkey oak particleboard with different densities and their response to varying heat pulse power to cover possible thermally dependent disturbance effects during the measurement. Samples were measured by the Pulse Transient Method using a Cuboid Model to estimate all basic thermophysical...

Design and comparison of a suitable separation technique during the machining process in a CNC machining center. The paper deals with the issue of chip extraction from the milling process in a CNC machining center. The paper aimed to compare the particle size distribution of dust generated in the milling process of natural wood (beech, oak, and spr...

The performance of engineered wood products is highly associated with proper bonding and an efficient cutting method. This paper investigates the influence of CO 2 laser cutting on the wetting properties, the modified chemical component of the laser-cut surface, and the strength and adhesive penetration near the bondline. Beech-wood is cut by the l...

The primary aim of this research was to investigate and evaluate the effects of thermo-vacuum modification through forced convection on selected chemical, physical, and mechanical characteristics of Siberian larch (Larix sibirica L.) wood. Larch wood boards were thermally-modified, using press-vacuum plant technology, for three hours at a temperatu...

Wood is one type of renewable insulation material that is very important to the building construction industry. In order to know the behaviour of wood materials during heat transfer, we need to know their thermal properties. The work is focused on the study of thermophysical properties, i.e. thermal conductivity, thermal diffusivity, specific heat...

The primary aim of this research was to investigate and evaluate the effects of thermo-vacuum modification on the chemical, physical, and mechanical characteristics of Siberian larch (Larix sibirica L.) wood. At a temperature of 200 °C and a pressure of 350 mBar, larch wood boards were thermally modified for three hours. In order to characterize th...

COronaVIrus Disease 2019 (COVID-19) is a newly emerging infectious disease that spread across the world, caused by the novel coronavirus Severe Acute Respiratory Ayndrome CoronaVirus 2 (SARS-CoV-2). Despite the advancements in science that led to the creation of the vaccine, there is still an urgent need for new antiviral drugs effective against SA...

In recent years, bio-based wood adhesives have gained an increased industrial and research interest as an environmentally friendly and renewable alternative to the commercial petroleum-based synthetic adhesives used in the wood-based industry. Due to its renewability, abundance, relatively low price, and good adhesion properties, starch is a promis...

info at: https://www.insegnadelgiglio.it/prodotto/ix-congresso-nazionale-sami-1/

The aim of this research was to evaluate the multiple effects of both thermal modification and alkyl ketene dimer (AKD) on the deodar cedar (Cedrus deodara Roxb.) wood surface, before and after an irradiation test. The physical and chemical changes that occurred on the cedar wood samples due to the combined effect of these modifications were evalua...

https://www.swst.org/wp/wp-content/uploads/2022/05/Wood-in-sport-equipment_Heritage-present-perspective.pdf

The motivations for the National Research Project on the Short Wood Supply Chain stem from the recognition of the great importance of the wood-based bio-economy for the future carbon-free society. In addition to the essential ecological benefits provided by forests, natural wood resources are expected to play a significant role due to the increasin...

The Olea europaea L. tree has played a central role in Mediterranean culture since ancient times. Several studies have highlighted the health‐promoting properties both of its primary products (olives) and its by‐products (leaves, pomace, husk, stone, mill wastes, and wood). In this study, pruning residues from 25‐year‐old olive trees located in a M...

The need to produce an ever-increasing quantity of material products and food resulting from the planet globalization process has contributed to the spread of modern agriculture based on a linear production resulting in the generation of tons of waste. This huge amount of waste is generally accumulated in landfills, causing different environmental...

The sweet chestnut (Castanea sativa Mill.) and European beech (Fagus sylvatica L.) are wood species largely present in the European forest area. The composition and relative variation of the secondary metabolites of chestnut and European beech wood under thermal effect is a little-explored area. The wood material was thermally modified at 170 °C fo...

Extensive research projects have been carried out on thermal modification of wood material, yet thermal properties of thermally modified poplar wood have not been comprehensively investigated. Black poplar (Populus nigra L.) is a Eurasian species native to Italy which is rarely used for the production of high-performance products, though it is one...

PROGRAMMA 17:20-17:35 Alberto Cavalli (Conlegno) | Filiere di prossimità sul territorio nazionale: opportunità e criticità [ITA] 16:15-16:45 Peer Haller (TU Dresden) | KEYNOTE SPEAKER | How sustainable is building with wood? [ENG] 17:35-17:50 Luca Galeasso (Environment Park) | La valorizzazione del ruolo delle filiere di prossimità nel contrasto al...

Terrestrial ecosystems and forests in particular, are important components because of their key role in reducing atmospheric greenhouse gas concentrations by storing a large amount of carbon in biomass and soils. Increasing attention is being paid to forestland area, which accounts for 30% of the total land surface and acts as the main C store in t...

Recent EU directives have encouraged member states to follow circular economy guidelines on waste reuse, especially for waste originating from wood agro-forest biomass. Delineating the antioxidant and chemical activity of biomass is a starting point to find new ways to utilize such materials. Here, an 8-year-old apricot (Prunus armeniaca L.) tree s...

Numerous investigations on the antioxidant properties of different plant tissue extracts are available in literature, but few studies on the effect of thermally modified wood on secondary metabolites were carried out up to now. This study highlights the influence of the thermal modification of Castanea sativa Mill. wood on total content of antioxid...

Terrestrial ecosystems, and forests in particular, are important components of land processes because of their key role in reducing atmospheric greenhouse gas concentrations by storing a large amount of carbon in tree biomass and soils. Increasing attention is being paid to forestland area, which accounts for 30% of the total land surface and acts...

Improvements in the yield and solubility of chestnut wood extractives, by using different extraction methods and molybdenum catalysts as support, have rarely been reported in literature. Many studies focus on the different parts of trees, except for the chemical characteristics of the remaining extractives achieved from thermally modified (THM) che...

Recent EU directives have encouraged member states to follow circular economy guidelines on waste reuse, especially for waste originating from wood agro‐forest biomass. Delineating the antioxidant and chemical activity of biomass is a starting point to find new ways to utilize such materials. Here, an 8‐year‐old apricot (Prunus armeniaca L.) tree s...

This work aims to observe the combined effect of steaming and temperature on the equilibrium moisture content (EMC) of Turkey oak wood (Quercus cerris L.) and to check whether there are some changes or becoming stabilized during the years. Although several studies on the thermal modification to change wood properties have been investigated in short...

Turkey oak (Quercus cerris L.) is a deciduous species characterized by high morphological variability and a widespread distribution range along SouthEast Europe. The wood of Turkey oak is scarcely considered as industrial lumber and is mainly used as firewood. Biomass pre-processing by heating improves feedstock consistency (mainly loss of water) a...

This article focuses on flammability and different modification temperatures on selected combustioncharacteristics and chemical components determined for teak wood (Pterocarpus soyauxii L. f.). TheThermoWoodR©principle has been used to modify thermally at 160◦C, 180◦C, and 210◦C. After thethermal modification the wood was treated with an immersion...

The purpose of this study was to analyze the effect of thermal treatment on chemical changes, mechanical properties and machining behavior of African padauk wood. Thermal modification of padauk wood was carried out at 3 different temperatures (160 °C, 180 °C, and 210 °C). Effect of modification temperature on chemical constituents and bending prope...

In accordance with European objectives, the Basilicata region intends to promote the use of energy systems and heat generators powered by lignocellulosic biomass, so the present study aimed to investigate the availability of logging residues and most suitable areas for the construction of bioenergy production plants. The life cycle assessment (LCA)...

Orange orchards are typical Mediterranean crops and a major feature of the heritage of the Mediterranean basin, where they play an important environmental and economic role. Their high availability, low price, and potential industrial application make the development of new and valuable uses of the orange's biomass of high interest. This research w...

Based on data collected within COST Action FP1407, this book expands information to provide the status of wood modification across Europe in 2019.

The main purpose of this study was to investigate the hydrophobic effect and chemical changes induced by thermo-treatment and alkyl ketene dimer (AKD) on the surface properties of Alder (Alnus cordata (Loisel) Duby) wood before and after an artificial weathering test. Thermal treatment was conducted at a temperature of 200 • C for 4 h in a thermo-v...

Aim The aim was to decipher Europe‐wide spatio‐temporal patterns of forest growth dynamics and their associations with carbon isotope fractionation processes inferred from tree rings as modulated by climate warming. Location Europe and North Africa (30‒70° N, 10° W‒35° E). Time period 1901‒2003. Major taxa studied Temperate and Euro‐Siberian tre...

This article deals with the effect of various temperatures of thermal modification and fire retardants on selected burning characteristics and chemical wood components of teak (Tectona grandis L. f.) wood. The thermal modification was carried out at temperatures 160 °C, 180 °C and 210 °C. Subsequently, thermally modified wood was treated by natural...

In short-rotation coppice, shoots grow at high density and compete for limiting resources with their neighbours. Interactions among shoots translate into individual size differences due to resource apportionment. In the present study we compared shoot dynamics of six hybrid poplars and three wild river genotypes of Populus nigra under the first thr...

The composition and the relative variation of secondary metabolites of Paulownia tomentosa S. wood under thermal effect is a little explored area. Wood material was previously thermo-treated at 210 °C for 3 hours using a press vacuum technology. Extractives of untreated and thermo-treated wood material achieved with Soxhlet extraction techniques we...

The composition and the relative variation of secondary metabo-lites of Paulownia tomentosa S. wood under thermal effect is a little explored area. Wood material was previously thermo-treated at 210 C for 3 hours using a press vacuum technology. Extractives of untreated and thermo-treated wood material achieved with Soxhlet extraction techniques we...

The effect of heat treatment and the presence of some molybdenum catalysts on the amount of extractives in Populus nigra, Larix decidua, Paulownia tomentosa, Castanea sativa and Quercus frainetto wood were studied. There are an increase in the amount of lignin and extractives and a decrease in the amount of holocellulose following thermo-treatment,...

Nowadays, there is an increasing interest on thermo-treatment and its effects on wood structure and extraction processes, connected to the wood use for industrial application and for its use as biorefinery. The present investigation aimed to provide the main changes on wood properties (mass loss, color variation and modulus of elasticity) and a com...

The effect of heat treatment and the presence of some molybdenum catalysts on the amount of extractives in Populus nigra, Larix decidua, Paulownia tomentosa, Castanea sativa and Quercus frainetto wood were studied. There are an increase in the amount of lignin and extractives and a decrease in the amount of holocellulose following thermo-treatment,...

The autoclave extraction of Hungarian oak (Quercus frainetto Ten.) wood gave 5.3% extractives. The chloroform soluble fraction obtained from the extracts of Q. frainetto allows to identify sesamin. The insoluble fraction contains mainly ribose and mannose. Water extraction in autoclave of thermo-treated Q. frainetto wood gave a lower amount of extr...

The autoclave extraction of Hungarian oak (Quercus frainetto Ten.) wood gave 5.3% extractives. The chloroform soluble fraction obtained from the extracts of Q. frainetto allows to identify sesamin. The insoluble fraction contains mainly ribose and mannose. Water extraction in autoclave of thermo-treated Q. frainetto wood gave a lower amount of extr...

strutturalegno pagina 001 002 Lo scopo principale del presente lavoro è fornire un supporto decisionale ai già presenti metodi per la valutazione delle caratteristiche meccaniche residue del legno strutturale, attraverso un metodo di prova non distruttiva. Per misurare il tempo di passaggio delle onde è stato utilizzato il dispositivo Fakopp Micros...

Lignin is an unwanted by-product in bioethanol production from a biomass. The treatment of poplar wood with hydrogen peroxide induces only a decreased amount of extractives and a small reduction in the amount of cellulose in the wood. When the reaction is performed in the presence of H3PMo12O40, besides the reduction of extractives, an effective de...

The treatment of wood wastes of Castanea sativa L., Quercus frainetto, Larix decidua, and Paulownia tomentosa S. in autoclave in the presence of micrometric crystals of H 3 PMo 12 O 40 showed an impressive increase of the amount of extractives. The extractives were mainly constituted of insoluble compounds that were analyzed by using gas chromatogr...

Oriented strand board (OSB) are widely marketed for several applications, from building to packaging. The manufacturing of poplar OSB has recently started in Northern Italy, representing a relevant innovation in the sector, given that this product is usually made of coniferous wood. Thermal treatment is nowadays widely used for increasing the dimen...

This study examined the hydrodynamic behaviour of European black poplar (Populus nigra L.) under coppice management in riparian areas with a multidisciplinary approach. An innovative procedure on the basis of the combination of plant allometric relations and hydrodynamic models was applied to assess drag forces and plant hydrodynamic bending as fun...

Solid wood has a certain amount of resistance to fire exposure. Recently, there is also great interest in characterization of the thermal behaviour of treated wood due to increasing demand of such products within the perspective of sustainability of environment. The objective of this study was to evaluate and predict the thermal decomposition proce...

The meeting will present the state of the art of modification technologies around Europe, production capacity and practical applications developed in the different countries. The meeting is coorganised by COST Action FP1407, University of Florence GESAAF, CNR IVALSA, University of Basilicata SAFE, SISEF Wood and Forest Products and Operations Group...

The objective of this work was to investigate color stability and chemical changes of thermo-treated artificially weathered and coated alder (Alnus cordata, Loisel.) samples. Specimens were thermo-treated at a temperature of 200 °C for 4 h and then coated with commercially manufactured finishes. A solar box test chamber was employed for weathering...

A renewed interest in producing thermo-treated wood extracts and the potential applications of these extracts was observed in chemical, pharmaceutical, and food industries. Poplar (Populus spp.), belonging to the Salicaceae family, is one of the most cultivated woody plant for industrial purposes, one of the least expensive hardwoods, rarely used i...

How well modified wood products perform may be influenced by their chemical compositions. Wood extractives are nonstructural constituents, many with specific biological properties, which affect the color, fragrance, hygroscopicity, durability, and acoustic properties and the drying and adhesion processes of wood. However, incomplete information is...

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Key message: Apical dominance ratio (ADR), reported as a suitable indicator for the growth and development ofAbies alba, is concurrently determined by morphological and functional plant traits. Structural equation modeling (SEM) proved here to be an effective multivariate technique to represent the contribution of different variables in explaining...

The effect of the presence of some molybdenum catalysts on the amount of extractives in cedar wood has been studied. Autoclave treatment of cedar wood in the presence of some molybdenum catalysts can increase the amount of extracts. While autoclave treatment of cedar wood in water gave 2.85% extractives, the same treatment in the presence of H3PMo1...

Soxhlet extraction of cedar wood with ethanol/toluene mixture in the presence of molybdenum catalysts can increase the amount of extracts. The treatment of cedar wood in the presence of H 3 PMo 12 O 40 gave 7.9 %e xtractives. In the presence of silica supported MoO 3 ,the amount of extractives was 17.0 %. The extractives were partially soluble in c...

Developing long-term chronologies of tree-ring anatomical features to evaluate climatic relationships within species might serve as an annual proxy to explore and elucidate the climatic drivers affecting xylem differentiation. Pinus leucodermis response to climate was examined by analyzing vertical xylem resin ducts in wood growing at high elevatio...

The influence of the thermal modification process on wood machinability was investigated with four minor species of low economic importance. A set of representative experimental samples was machined to the form of disks with sharp and dull tools. The resulting surface quality was visually evaluated by a team of experts according to the American sta...

In the Mediterranean region, the widely predicted rise in temperature, change in the precipitation pattern, and increase in the frequency of extreme climatic events are expected to alter the shape of ecological communities and to affect plant physiological processes that regulate ecosystem functioning. Although change in the mean values are importa...

One of the major shortcomings of wood-based materials compared to technical materials is attributed to their poor dimensional stability in changing climates and in contact with liquid water. Heat treatment induces chemical change with a consequent decreasing of reactivity of the material showing unwanted surface inactivation. Alkyl ketene dimer (AK...

We present the results of a dendrochronological study carried out on timbers from the monastic abbey Grancìa of Brindisi di Montagna in Southern Italy. Our objective was to date cross-sections of oak (Quercus spp.) taken from structural timbers to determine the felling dates, the time span covered by the series and to evaluate whether the retrieved...

This study examined the mechanical properties of Turkey oak (Quercus cerris L.) wood before and after combined steam and thermal treatments under vacuum conditions. Wood was steamed at 100 to 110° C and thermally treated under vacuum at 160° C by the press-vacuum or thermo-vacuum process. Treated material was characterized in terms of the modulus o...

Cuttings of seed originated European black poplars growing in two riverine environments of Southern Italy, which are geographically close, but geomorphologically very different, have been planted in Short Rotation Forestry coppices and subjected to the same rotation length regime. The two different 3-year-old shoot poplar ensembles exhibit statisti...

The present study assessed the effects of climatic conditions on radial growth and functional anatomical traits, including ring width, vessel size, vessel frequency and derived variables, i.e., potential hydraulic conductivity and xylem vulnerability to cavitation in Ilex aquifolium L. trees using long-term tree-ring time series obtained at two cli...