Biblioteca do Café
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Item Potential inhibitory action of cafestol on apoptosis proteins: An in-silico study(Editora UFLA, 2025-02-04) Rendón-Rodríguez, Juan José; Lopera-Rodríguez, Jorge Alejandro; Sanabria-Chanaga, Elkin; Röthlisberger, SarahCoffee has been found to reduce cell proliferation and induce apoptosis, which is significant in terms of protecting against cancer. However, the molecular mechanism of this effect is yet to be fully elucidated. The aim of this study was to evaluate the affinity between 12 key proteins involved in apoptosis and four of the main compounds derived from coffee: caffeine, cafestol, caffeic acid, and chlorogenic acid, in order to contribute to the understanding of the effect of coffee on apoptosis. Molecular docking was performed between proteins and ligands using Autodock Tools in Autodock Vina. The best protein-ligand complexes were then submitted to molecular dynamics (MD) simulations in GROMACS 2018.2. The best interactions in molecular docking analysis were Bcl-2 with cafestol, Bcl2l1 with cafestol, and Bax with cafestol. MD simulations show that cafestol binds more strongly within the binding pockets of Bcl-2 and Bax, while the Bcl2l1-cafestol complex is not very stable. These results imply that cafestol competes for binding with Bcl-2 and Bax. Binding of cafestol could inhibit the anti-apoptotic activity of Bcl-2 and promote the pro-apoptotic activity of Bax, thus favoring apoptosis. This is especially relevant in the context of cancer cells, where the expression of Bcl-2 can be increased. We propose a model in which the binding of cafestol with Bcl-2 favors a pro-apoptotic effect, and as such is worth further scrutiny as an anticancer strategy.Item System Dynamic Model of Production Control in Indonesia’s Robusta Coffee Downstream Agroindustry (A case study)(Editora UFLA, 2025-05-19) Herry Purnomo, Bambang; Novita, Elida; Setiawati, Anis; Wahono, Puji; Pradana, Hendra Andiananta; Kurnianto, Mokhamad Fatoni; Pramulya, Rahmat; Rahmah, Devi Maulida; Sutrisno, Adi; Amiluddin, AfifThe small-scale downstream agroindustry of Argopuro robusta coffee often faces problems related to suboptimal production management. The Kahyangan Robusta Coffee Processing Unit (called UPH) produces roasted and ground coffee and has the same problem, often being unable to meet market demand, having excess product and raw material inventory, and quite high production costs. The purpose of this study is to design a system dynamic model for production control that can guarantee the fulfillment of market demand for roasted and ground coffee, reduce excess inventory, and lower production costs. The research results show that until 2025, UPH is still unable to meet market demand (stockout occurs) of 66,25 kg (roasted coffee) and 57,04 kg (ground coffee), product stock volume of 24,6 tons, and total production costs of Rp. 1,34 billion. A policy scenario was developed to handle this unsatisfactory situation by regulating the production rate of roasted and ground coffee through variable settings for the amount of downstream product safety stock, ‘inventory adjustment time’, and ‘time to update demand’. The results of the model simulation show that monthly demand has been met without stockouts. There were savings in production costs of up to 14% and stock reductions for raw materials of 42%, roasted coffee of 14%, and ground coffee of 27,36%. The model has proven to be useful for inventory optimization and cost management. UPH can follow up by controlling the production rate according to the level of downstream product stock so that it can increase its competitiveness.Item Enzymes activity as potential molecular markers for drying tolerance and quality in Coffea arabica seeds(Editora UFLA, 2024-09-19) Freitas, Aline Silva; Pinho, Édila Vilela de Resende Von Pinho; Santos, Heloisa Oliveira dos; Pereira, Elise de Matos; Pereira, Wilson Vicente SouzaAntioxidant enzyme expression plays a vital role in the stress response in plants. This study evaluated the physiological quality and antioxidant enzyme expression of coffee seeds and plants subjected to drying. Coffee seeds were conventionally dried to 40% and 10% water content, representing nonstressed and stressed conditions, respectively. The tests included germination, accelerated aging, and emergence. The expression of enzymes (SOD, CAT, POX, APX, and 1-cys-prx), together with lipid peroxidation, was analysed. The results showed no significant differences in the physiological test results, except for germination in stressed seeds. We found differences in antioxidant system enzymes according to the condition applied to the seeds; however, only for peroxidase, lipid peroxidation, and 1-cys-prx were the observed patterns more strongly correlated with seed germination. Nevertheless, only lipid peroxidation and 1-cys-prx were more strongly correlated with germination, indicating its potential as a marker for coffee seed quality.Item Risk identification of supply chain system in coffee processor: A case of Indonesia(Editora UFLA, 2024-11-26) Suryaningrat, Ida Bagus; Hapsari, Shinta Syafrina EndahCoffee is one of Indonesia's top agricultural products, earning US$815,933,000 on an export basis, with 8.93% (64,804 tons) of the production coming from East Java (Indonesian Central Bureau of Statistics, 2019). Coffee processors face many uncertain conditions in the supply chain, which are commonly referred to as risks. Risk management is important in any business process to optimize, monitor, evaluate and maintain the continuity of business strategy and resources. This research aims to analyze and mitigate risks in the coffee processor's supply chain system. Risk identification and analysis, aggregate risk potential (ARP) score, risk evaluation and treatment, and effective to difficulty (ETD) score were implemented in this study. This study found that the risk drivers have the most significant relationship with the 28 listed risk events. On the other hand, 10 mitigation strategies have a strong relationship with these risk agents and have high effectiveness and lower difficulty.Item Global competitiveness of coffee products: A comparative study of Indonesia and Vietnam(Editora UFLA, 2024-09-19) Suryana, Anggita Tresliyana; Saleh, Yopi; Dewi, Triana Gita; Rahayu, Heni Sulistyawati PurwaningThe competition and performance gap between Indonesia and Vietnam coffee underscore the importance of Indonesia assessing its global competitiveness against Vietnam. The study aims to analyze the competitiveness of Indonesian and Vietnamese coffee in international trade, focusing on green beans, roasted coffee, and instant coffee as the primary products of the coffee industry. Assessing export performance necessitates comparative analysis with competitor countries like Vietnam. The data comprises export statistics of both robusta and arabica coffee from Indonesia and Vietnam obtained from the UN Commodity Trade database, covering 2004 to 2021. The Revealed Comparative Advantage (RCA) and Revealed Symmetric Comparative Advantage (RSCA) methods were used to analyze Indonesia’s and Vietnam’s coffee competitiveness. The study analyzed the Trade Balance Index (TBI) to measure the trade balance of export commodities. The study result stated that Indonesia’s competitiveness in green bean coffee is lower than Vietnam’s. Vietnam surpasses Indonesia in the instant coffee market after facing reduced competitiveness from Indonesia between 2014 and 2020. Regarding roasted coffee exports, the two countries do not have a comparative advantage in international trade. In comparing TBI results, it is evident that green beans and instant coffee products from Vietnam and Indonesia possess a comparative advantage for export, with an average TBI of 0.97, 0.63, 0,91, and 0.52, respectively. Moreover, although roasted coffee in both countries lacks a comparative advantage, it still focuses on exports. To improve the competitiveness of Indonesian coffee, it is necessary to implement good agricultural practices to ensure consistency and quality, and government policies and regulations are vital to incentivize investment and innovation in upstream coffee processing, thereby fostering a solid industry.Item Converting Arabica Coffee Parchment into value added products: Technical and Economic Assessment(Editora UFLA, 2024-07-29) Setiawan, Adi; Sitepu, Billy B.; Muhammad; Anshar, Khairul; Riskina, Shafira; Nurjannah, Siti; Hakim, LukmanThe coffee processing industry is experiencing a continuous rise in residues due to increased coffee-cherry production. However, the utilization of coffee parchment, which contains toxic compounds, remains limited and requires further investigation. This study aims to convert coffee parchment into biochar for potential use as a raw material for porous carbon material. The research was conducted using a purpose-built pilot-scale reactor. The goal was to address challenges related to operational cost, simplicity in operation, and maintenance, utilizing the Net Present Value (NPV) approach. Results indicated that coffee parchment comprised 34.5% biochar, 42.15% bio-oil, and balanced un-condensable-gas. Additionally, biochar products consisted of 42.02% fixed carbon and 38.63% volatile matter. The pyrolysis equipment designed for coffee parchment showcased economic viability, considering optimized annual operating days and scalability for production.Item Roasting variations and brewing methods in the preparation of clear Coffee Beverages from Gayo Arabica Coffee(Universidade Federal de Lavras, 2024-07-29) Sulaiman, Ismail; Marsyanda; Erika, CutCoffee drinks are trendy drinks around the world, and they usually contain caffeine. However, this research focuses on creating a coffee drink that does not contain caffeine so that those who cannot consume it can enjoy it. The resulting coffee drink is a colorless coffee drink. The coffee production process initially produces a black-colored drink, but it can turn it into a clear-colored drink through distillation and chemical methods. This research aims to study the process of making clear coffee by varying roasting and brewing levels with various variations to obtain clear-colored coffee and low caffeine levels. Preparation of clear coffee drinks is done by brewing espresso and Tobruk, which is then analyzed for pH, caffeine, and color tests on the results of the clear coffee drink. Based on the ranking test on each parameter tested on clear coffee drinks, the best treatment is using the distillation method, espresso brewing, and medium roasting level. The analysis results of this selected formulation produced a transparent beverage color (clear), pH 3.5, and caffeine levels of 4.639 mg/mL.Item Estrangeiras e nacionais: as maiores casas exportadoras de café em Santos (1897-1930)(Departamento de Economia, Faculdade de Economia, Administração e Contabilidade da Universidade de São Paulo (FEA-USP), 2023-08-07) Silva, Gustavo Pereira daNo período 1897-1930, as lavouras do estado de São Paulo responderam por aproximadamente dois terços das sacas de café exportadas pelo Brasil, grãos que eram negociadas no porto de Santos. Mas, quais eram as firmas responsáveis por exportar o café brasileiro no porto paulista? A historiografia convencionou apontar o domínio de empresas estrangeiras sobre a comercialização do café no período citado. Embasado nos arquivos da Associação Comercial de Santos e nas edições do Wileman’s Brazilian Review, o artigo demonstra que as casas inglesas e alemãs lideraram as exportações em Santos até 1913, mas, com o início da I Guerra Mundial em 1914 e na década de 1920, houve casas nacionais/brasileiras que lideraram a exportação e passaram rivalizar com firmas estrangeiras, sendo que estas firmas passaram a ser as estadunidenses.Item Alternative substrates for the production of clonal Coffea canephora seedlings(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2024) Balbino, Tony José; Espindula, Marcelo Curitiba; Tavella, Leonardo Barreto; Teixeira, Richelly Gisela Pasqualotto; Bravin, Núbia Pinto; Dias, Jairo Rafael Machado; Bravin, Maísa PintoThe objective of this work was to evaluate the physicochemical properties of coffee husk, elephant grass, and sugarcane alone or combined with each other or with commercial compounds, as well as their use as substrate for the production of clonal Coffea canephora seedlings. The experiment was carried out in two stages: one for the physicochemical characterization of the substrates, and the other for evaluations of the growth of coffee seedlings in these substrates. In the first stage, the treatments consisted of coffee husk (CH), elephant grass (EG), sugarcane (SC), commercial substrate (CS), vermiculite (VM), and their combinations. In the second stage, the standard substrate (soil) was also evaluated. CH presented a high electrical conductivity and density and a low aeration space and available water. SC stood out for its lower pH and density and its greater porosity. SC and EG were viable for coffee seedling production, not differing from the commercial and standard substrates. With the exception of CH+EG, CH+CS, and EG+SC, the combined substrates allowed of a greater seedling growth than the isolated ones. CH was only viable as a substrate when combined, especially with VM. Combining CH, SC, and EG to the standard substrate improves the quality of clonal C. canephora seedlings.Item MGS Guaiçara and MGS Vereda: Coffea arabica cultivars resistant to the root-knot nematode Meloidogyne paranaensis(Crop Breeding and Applied Biotechnology, 2022-09-01) Salgado, Sônia Maria de Lima; Fatobene, Bárbhara Joana dos Reis; Pereira, Antonio Alves; Abrahão, Juliana Costa de Rezende; Botelho, Cesar Elias; Carvalho, Gladyston Rodrigues; Oliveira, Antônio Carlos Baião de; Ferreira, André Dominghetti; Figueiredo, Vanessa Castro; Vilela, Diego Junior Martins; Luz, Silvana Ramlow Otto Teixeira da; Andrade, Vinicius TeixeiraMGS Guaiçara e MGS Vereda are resistant to Meloidogyne paranaensis, one of the most aggressive nematode parasites of coffee. MGS Vereda is an early maturation cultivar, whereas MGS Guaiçara has a medium maturation cycle. Both cultivars produce red fruit, have high size, and high yield potential in infested areas.