https://www.alice.cnptia.embrapa.br/alice/handle/item/331 Artigo em periódico indexado (CPATSA) 2026-04-13T01:01:59Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1186143 Título: Viabilidade financeira da pasteurização lente de leite na fazenda: estudo de caso. Autoria: HOLANDA JUNIOR, E. V.; HOLANDA, E. D.; MADALENA, F. E.; AMARAL, J. B. C.; MIRANDA, W. M. Conteúdo: O estudo descreve a viabilidade financeira da pasteurizacao lente de leite, a partir da analise da rentabilidade frente a diferentes variacoes, em uma propriedade rural localizada na regiao metropolitana de Belo Horizonte, MG, no ano contabil de 1998. Foram utilizadas anotacoes das despesas e receitas complementas por entreviastas semi-estruturadas. A producao e compra de leite foram os principais componentes dos custos operacionais totais. A pasteurizacao representou 12% do custo operacional e a rentabilidade sobre o capital total 10,5%. A rentabilidade variou mais frente aos precos de venda do leite e aos custos operacionais totais de producao do que aos investimentos e diferenca de inventario animal. A pasteurizacao de leite na fazenda mostrou-se uma alternativa viavel de acordo com a situacao estudada. 2002-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1186138 Título: Sorghum biomass: productive potential and energy strategy for the semiarid region. Autoria: NASCIMENTO, L. A. do; OLIVEIRA, A. R. de; SANTOS, C. B. dos; SILVA, W. O. da; TARDIN, F. D.; MORALES, M. M.; ANGELOTTI, F. Conteúdo: Biomass sorghum has emerged as a strategic crop in semi-arid regions and other areas with water limitations, providing a sustainable source of biomass for multiple uses, including bioenergy generation. This study evaluated the productive and energetic potential of biomass sorghum cultivars under sowing dates in brazilian semi-arid. Two experiments were conducted: the first assessed biometric and productive parameters of the cultivars Agri 002E and BRS 716, sown in two planting seasons (June and December). The first harvest was carried out when ≥50% of the panicles reached physiological maturity, and the regrowth was harvested 40 days later. The second experiment evaluated energy potential at phenological stages. Both experiments followed a randomized complete block design with three replications. Results showed that planting date significantly influenced sorghum development and biomass production. December sowing resulted in 57.97 t ha−1 of dry biomass at the first harvest and 26.69 t ha−1 during regrowth. June sowing produced 21.42 t ha−1 at the first harvest and 42.89 t ha−1 at regrowth. The optimal harvest time for energy production was 123 days after sowing, reaching 69.7 Gcal/ha. These findings demonstrate that biomass sorghum is a viable and sustainable alternative for bioenergy generation in semi-arid regions. The crop’s capacity for regrowth, high biomass accumulation, and adaptability to environmental stress make it a promising strategy for reducing dependence on native forest biomass and promoting energy sustainability. Biomass sorghum contributes as a resilient and sustainable strategy for food and energy security. 2026-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1185937 Título: Small-scale biodigesters in a tropical semi-arid region: impacts on emissions and water, energy and food security. Autoria: SILVA, J. B. da; PORTO, I. O.; ALENCAR, B. R. A.; SANTOS JÚNIOR, E. P.; AMARAL, D. R. do; VALLE, D. S. G. M. do; ABREU, I. B. S. de; SILVA, S. P. da; SILVA, A. F.; MOURAM R, S, de; CARVALHO, M.; ANTONINO, A. C. D.; SALES, A. T.; DUTRA, E. D.; MENEZES, R. S. C. Conteúdo: Due to the growing search for natural resources to meet human needs, interest has arisen in developing technologies based on the Water-Energy-Food (WEF) nexus. The implementation of biodigesters on small farms is an initiative that aligns with global agendas and the WEF nexus concept. This research aimed to evaluate the integration of a small-scale biodigester prototype locally referred to as "biodigestor sertanejo," on the water, energy, food, and environmental security of smallholder farmers in the semi-arid region of northeastern (NE) Brazil. Primary data were obtained from semi-structured questionnaires. A physical-chemical analysis of the digestate as a biofertilizer was also carried out. The emissions from the biodigester were analyzed using the life cycle assessment method. The use of biodigesters to treat animal waste has positively impacted the lives of families by reducing the proliferation of diseases and the contamination of water resources. Replacing firewood with biogas for cooking also helped reduce the number of cases of respiratory diseases in families by 10.9 %. It was also found that domestic savings of around USD 201.3 per year resulted from the switch to biogas energy. 2025-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1185933 Título: Assessing vine training systems and rootstocks through a flavoromic approach of grape juices. Autoria: HERNANDES, K. C.; SILVA, D. F. da; SILVEIRA, R. D.; RAMOS, E. A.; LEAO, P. C. de S.; RYBKA, A. C. P.; BIASOTO, A. C. T.; ZINI, C. A.; WELKE, J. E. Conteúdo: This study applied a flavoromic approach to identify the most suitable combination of training system (trellis, lyre, and espalier) and rootstock (IAC 572 and IAC 766) for grape cultivation aimed at juice production. Grape juices were evaluated for physicochemical properties, antioxidant activity, phenolic profile (LC-DAD-QToF-MS), volatile composition (HS-SPME-GC/qMS), odor-active compounds (OSME-GC-O), and sensory attributes. Juices produced from vines grafted onto IAC 572 showed higher anthocyanins contents, resulting in greater color in- tensity and antioxidant activity. The trellis × IAC 572 combination yielded the highest concentrations of ethyl esters with intense fruity aroma. Foxy notes were more pronounced in juices from trellis and espalier systems combined with IAC 572, which correlated with higher furaneol levels. Therefore, flavoromics demonstrated that the enhanced vegetative growth and regulated solar incidence provided by IAC 572, particularly when combined with trellis or espalier systems, favor the biosynthesis of key metabolites that drive grape juice quality. 2026-01-01T00:00:00Z