88 documents found, page 1 of 9

Thermally modified wood: assessing the impact of weathering on mechanical stren...

ABSTRACT: The main objective of this study was to evaluate the mechanical properties of three thermal-modified wood species when exposed to weathering in urban and maritime/industrial environments and their durability against subterranean termites. The wood species studied were Maritime pine, ash, and blackwood acacia. All wood samples were exposed to two different environments (urban and maritime/industrial) f...

Revelar o potencial das cúpulas de carvalho como matéria prima de base biológica

The behavior of thermally modified wood after exposure in maritime/industrial a...

ABSTRACT: Natural and thermally modified Pine, Ash, and Acacia woods were exposed in two different environments: urban and maritime/industrial. The weathering effects were evaluated during 24 months regarding color, chemical, and structural changes. In all wood species, thermal modification induced color, chemical, and structural changes. All woods became darker (Pine Delta L*: -32.01; Ash Delta L*: -36.83; Aca...

Chemical composition and nutritional value of flowers and fruits of Cytisus str...

In ancient times, the shoots of certain species within the Cytisus genus were used as animal feed. Cytisus striatus is a plentiful and widespread shrub that has long been utilized as a soil fertilizer in the Iberian Peninsula. The flowers of this shrub have traditionally been employed for medicinal purposes. However, the nutritional value of yellow broom flowers and fruits remains largely unexplored. In this st...

A systematic analysis of nutritional and mineral composition and toxicity in Ac...

In the present study, the nutritive composition and mineral content of the leaves of eight species of Acacia trees were evaluated to assess their potential for different purposes, such as food resources for ruminants and mineral sources in soils. Caco-2 cells were employed to assess cytotoxicity, revealing that the extracts exhibited no cytotoxic effects after cellular incubation, suggesting their suitability a...

Encouraging Invasive Acacia Control Strategies by Repurposing Their Wood Biomas...

Concerns on the expanding infestation of several Acacia species in the southern Mediter- ranean European countries have triggered an ever-growing requirement for costly targeted control actions. Valorizing biomass waste produced could help promote and better finance these actions. For that purpose, wood wastes from invasive control actions were tested regarding their pulp and paper potential, aiming to entice c...

Tropical mobola plum (Parinari Curatellifolia): a full characterization of wood...

Parinari curatellifolia is the main species used to produce charcoal in Angola. Its chemical, anatomical, and thermal prop- erties were analyzed. The bark is dark grey, rough, and corky, and the wood is brown to yellow-red. Compared to wood, bark fibers presented lower length, lumen, and wall thickness. There is not much difference between height and cell num- bers of rays. Sieve tube elements appear solitary o...

The behavior of thermally modified wood after exposure in maritime/industrial a...

Natural and thermally modified Pine, Ash, and Acacia woods were exposed in two different en- vironments: urban and maritime/industrial. The weathering effects were evaluated during 24 months regarding color, chemical, and structural changes. In all wood species, thermal modifi- cation induced color, chemical, and structural changes. All woods became darker (Pine ΔL*: 32.01; Ash ΔL*: 36.83; Acacia ΔL*: 27.50), t...

Insights into the bioactivities and chemical analysis of Ailanthus altissima (M...

In recent years, several analytical methods for characterising the Ailanthus altissima (Mill.) Swingle have aroused interest in the scientific community, since this species is not only considered an invasive alien species, but also possesses a wide and complex number of chemical compounds. These compounds are studied with the aim of ascertaining their biological activities, which could help to understand their ...

Characterization of mineral composition and nutritional value of acacia green pods

The Acacia genus is considered one of the most invasive taxa in some habitats, namely coastal dunes, maritime calcareous soils, fresh lands in the valleys, mountainous areas, and the banks of watercourses and roadsides. In Portugal, the severity risk is very high, so this study aimed to evaluate the nutritional and mineral contents of the green pods as a potential source for livestock feeds and soil fertilizer ...