https://www.alice.cnptia.embrapa.br/alice/handle/item/151 Artigo em periódico indexado (CNPF) 2026-07-22T16:14:49Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1188506 Título: Forest biomass valorization in Brazil: innovations in biorefineries and opportunities for a low-carbon economy. Autoria: CADEMARTORI, P. H. G. de; FERREIRA, L. da C.; LEITE, B.; BENTO, A. V.; SOUSA, Á. F. de; MATTOS, B. D.; MISSIO, A. L.; MAGALHAES, W. L. E. Conteúdo: The objective of this review was to analyze the role of forest biomass valorization in bioeconomy and global energy transition. This study presents the contributions of emerging technologies to the production of sustainable products and their alignment with Brazil’s international climate commitments, particularly the goals outlined for COP30. Given that fossil fuel combustion accounts for nearly 80% of global greenhouse gas emissions, the search for renewable energy alternatives has become a strategic priority. Biorefineries have emerged as a key pathway for converting plantand animal-based biomass into bioenergy and renewable chemical compounds. Brazil stands out for its extensive availability of forest and agro-industrial residues, which strengthens its potential to generate high-value-added products and promote sustainable industrial practices. By-products such as lignin, nanocellulose, and agroforestry residues show a significant potential for the development of innovative materials that contribute to decarbonization strategies. The integration of Brazil’s biomass resources with technological innovation may position the country as a global leader in advancing sustainable bio-based solutions. O objetivo desta revisão foi analisar o papel da valorização da biomassa florestal na bioeconomia e na transição energética global. Este estudo apresenta as contribuições das tecnologias emergentes para a produção de produtos sustentáveis e sua relação com os compromissos climáticos internacionais do Brasil, em especial as metas estabelecidas para a COP30. Considerando-se que a queima de combustíveis fósseis é responsável por cerca de 80% das emissões globais de gases de efeito estufa, a busca por alternativas de energia renovável tornou-se uma prioridade estratégica. As biorrefinarias surgiram como um caminho chave para converter biomassa de origem vegetal e animal em bioenergia e compostos químicos renováveis. O Brasil se destaca pela ampla disponibilidade de resíduos florestais e agroindustriais, o que reforça seu potencial para gerar produtos de alto valor agregado e promover práticas industriais sustentáveis. Subprodutos como lignina, nanocelulose e resíduos agroflorestais mostram potencial significativo para o desenvolvimento de materiais inovadores que contribuem para estratégias de descarbonização. A integração dos recursos de biomassa do Brasil com a inovação tecnológica pode posicionar o país como líder global no avanço de soluções sustentáveis de base biológica. 2026-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1188429 Título: Public policies related to the production of forest biomass for energy purposes in Brazil. Autoria: OLIVEIRA, A. S. M. de; SIMIONI, F. J.; SOARES, J. F.; MOREIRA, J. M. M. A. P.; BUSCHINELLI, C. C. de A.; COELHO JUNIOR, L. M. Conteúdo: Forest biomass offers a solution for energy security and boosting the low-carbon bioeconomy in Brazil. This article aimed to analyze the adequacy of Brazilian public policies directed at the production of forest biomass for energy purposes. The study involved a survey of 171 experts in forestry public policy in Brazil, who answered an online questionnaire. The main results reveal that, although legislation for forestry production is considered relatively adequate, laws addressing the specific portion for energy purposes are considered less adequate. The specialists reported the need to reform existing legislation to better serve the productive sector. Regarding economic instruments, most respondents considered the volume of rural credit for forest plantations insufficient and interest rates high. Moreover, 82% of the respondents indicated that small forestry producers have the greatest difficulty in gaining access to credit. In conclusion, this study highlights the need for more effective public policies for the forest biomass energy sector. Suggestions include creating specific lines of credit for small producers with lower interest rates and longer grace and repayment periods, establishing quality-control regu- lations for biomass, and ensuring a minimum price for timber. Such actions would be crucial to promoting the energy transition, energy security, and a low-carbon bioeconomy in Brazil. 2026-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1188233 Título: Study in wood of Ceiba pentandra (L.) Gaertn. from planting: chemical constituents and their biological importance. Autoria: SOUZA, P. B. A.; OLIVEIRA, D. S.; LIMA, R. M. B. de; LIMA, M. P.; NASCIMENTO, C. C.; LIMA, R. M.; SILVA, D. F.; SILVA, M. F. G. F. Conteúdo: Ceiba pentandra (Malvaceae) is a species popularly known in North Brazil as “sumaúma” that has attracted interest in phytochemical studies due to the diversity of classes of compounds biologically active. The objective of this study was to investigate the chemical constituents present in the wood residues of Ceiba pentandra and to evaluate the antibacterial activity of a purified sesquiterpene lactone against Xanthomonas citri subsp. citri. The isolated compounds were identified based on one-dimensional (1H and 13C) and/or two-dimensional (HSQC and HMBC) NMR analyses, the mixtures of fatty acid were characterized by GC-MS. The chemical constituents identified were steroids (cholest-4-en-3-one, stigmast-4-ene-3,6-dione, β-sitosterol, and stigmasterol); macrolides (des-O-methyl-lasiodiplodine and lasiodiplodine); isocoumarin (4-hydroxymelein); sesquiterpene lactone (isohemigosilicic acid lactone-2-methyl ether); and a mixture of fatty acids (palmitic acid, oleic acid, stearic acid, linoleic acid, and dihydrosterculic acid). The sesquiterpene lactone was evaluated against the bacterium Xanthomonas citri ssp. citri and demonstrated bactericidal and bacteriostatic activities at concentrations up to 400 µg mL-1. Our phytochemical study aggregated knowledge of this wood species originated from plantation sites and found activity bactericide to combat citrus canker. 2026-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1188239 Título: Species list of ground-dwelling ants (Hymenoptera: Formicidae) in the Nhecolândia, Pantanal, Mato Grosso do Sul, Brazil Autoria: MARTINS, M. F. de O.; NICKELE, M. A.; FEITOSA, R. M.; PIE, M. R.; REIS-FILHO, W. Conteúdo: This study provides a list of the ground-dwelling ant species in Nhecolândia, Pantanal, Mato Grosso Sul, Brazil. The Pantanal is the largest tropical wetland in the world and is currently under strong anthropic pressure. Ground-dwelling ants were collected in three sites: (1) a forest regeneration area; (2) a pasture area; and (3) an area of secondary native vegetation. In each site, 120 samples were collected using pitfall traps in the dry and rainy seasons of 2016. Additional samplings were performed with Winkler extractors (30 leaf-litter samples) and manually, also in dry and rainy seasons of 2016. In total, we collected 172 species, which, summed with the additional records from literature, raise the number of ant species recorded in Nhecolândia to 184 in 42 genera and nine subfamilies. Eleven species were recorded for the first time in the state of Mato Grosso do Sul. Also, the survey adds two new species records to Brazil. Besides contributing to the inventory of the ant species present in the Pantanal biome, the present study provides an important resource for future conservation plans for this threatened ecoregion. 2021-01-01T00:00:00Z