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Trema orientalis: A potential bioresource in Bangladesh

XV World Forestry Congress, 2-6 May 2022









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    Medicinal mushrooms from tropical Africa: A state of the art about their diversity and application spectrum
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Fungi are playing an important role in human health care and industry since immemorial time. The relevance of fungi in human health is not only high, but their benefits are actually staggering and expanding. It is well known that fungi represent a potential source of biologically active compounds with immune-modulating, anti-inflammatory, antibacterial, antiviral, and anticancer activities. The use of fungi for therapeutic purposes is largely documented in traditional medicine of numerous countries, with China ranking top one. Conservative estimates of about 182 fungal species with therapeutic/medicinal properties have been reported worldwide. Due to their mega-diversity, tropical African fungi are predicted to provide novel bioactive metabolites of remarkable pharmaceutical significance. This prediction is supported by few ethnomycological investigations that reported on various taxa commonly used for therapeutic purposes. Therapeutic exploitation presents a large spectrum, including treatments against convulsions, skin diseases, heart problems, cancer; but also to boost the immune system. In the present talk, we will give a global overview of the diversity of tropical African macromycetes commonly used in traditional medicine along with the application procedure. We will also explore fungi taxa that present a high potential for useful secondary metabolites and discuss about recent findings on their bio-activity. Keywords: Fungi, therapeutic applications, health, bio-activity, Tropical Africa ID: 3487173
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    Application of ethanol-assisted soda pulping to Korean Quercus acutissima Carruth
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Sustainable production and utilization are critical values in many industries. In present, our living is threatened by indiscriminate usage of petrochemical materials that have pollution problem to soil, sea, as well as human health since they are extremely difficult to be decayed and recycled. Therefore, it is very important to find alternatives using sustainable materials. The effective utilization of forest resources and production will be directly relevant to SDGs 8, 12, and 13. Wood is a typical natural sustainable resource consisted of cellulose, hemicellulose, lignin, and extractives. Each component has important value as raw materials to convert value-added materials, such as energy, pulp, paper, cosmetics, fragrance, pharmaceuticals and so on. Among them cellulose which is a major component of wood can be produced by chemical engineering process and applied to the various industrial areas. Kraft pulping is a typical and classical chemical engineering process that can extracted cellulose from wood for producing pulp. However, it is difficult to bleach and includes environmentally harmful elements which can generated corrosive gases such as SOx and NOx. This paper will suggest an eco-friendly pulping process to deal with the inevitable environmental problems, such as air pollution and consumption of mass energy by addition of ethanol in extraction process of cellulose from wood. Delignification efficiency was analyzed at the various operating variables such as alkali concentration, ethanol dosage, and cooking temperature. As a result, ethanol had positive effects on improvement of delignification without any change of pulp properties compared to conventional Kraft pulping. Keywords: Research ID: 3622377
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    Morphological and physiological traits related to PM 2.5 reduction capacities in 13 landscaping tree species
    XV World Forestry Congress, 2-6 May 2022
    2022
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    With the increasing use of fossil fuels, fine particulate matter (PM2.5) is emerging as a serious environmental problem worldwide. In particular, the damage caused by PM2.5 in urban areas, where industrial complexes and human activities are concentrated, is extremely problematic, posing a threat to human health. Thus, the importance of landscaping trees is increasing because of their ability to reduce PM2.5; however, there remains a lack of research on the selection of species and tree management for PM2.5 reductions. In this study, we quantified and compared the PM2.5 reduction capacities of 13 major landscaping tree species and analyzed the relationship between the physical and physiological characteristics of each species and PM2.5 reduction. Results showed that the amount of PM2.5 reduction differed among species; reduction per leaf area was the highest in Ginkgo biloba (0.127 ± 0.024 μg cm-2) and the lowest in Pinus strobus (0.0072 ± 0.0008 μg cm-2). Moreover, PM reduction by the broadleaf species (0.085 ± 0.007 μg cm-2) was approximately 9.4-fold that by the needleleaf species (0.009 ± 0.001 μg cm-2). Correlation analysis revealed that differences in PM2.5 reduction were described by specific leaf area between species (P = 0.004), and explained by the length of margin per leaf area among individual trees (P < 0.05). Additionally, reduction in PM2.5 correlated with photosynthetic properties such as maximum assimilation and carboxylation rates, indicating that PM2.5 is reduced not only by physical but also by physiological processes (P < 0.001). These findings emphasize that for effective reduction in PM2.5 through landscaping trees, comprehensive consideration of the physical and physiological characteristics of the species is essential in species selection, and that continuous management is also necessary to maintain the active physiological conditions of the trees. Keywords: Human health and well-being, Adaptive and integrated management, Landscape management ID: 3617896

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