Biblioteca do Café
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Item Association Between Black Tea and Coffee Consumption, Socioeconomic Status, and Digestive Disorders: A Case-Control Study(Editora UFLA, 2025-06-04) Asgharzadeh, Vahid; Mahdavipoor, Behroz; Asgharzadeh, Mohammad; Somi, Mohammad Hossein; Hosseini, Mohammad Reza; Ghazani, Hossein Bari; Ozma, Mahdi Asghari; Rashedi, Jalil; Kohkalani, Moein; Rezaei, Seyyed Amin SeyyedThis study aimed to explore the relationship between black tea and coffee consumption and the prevalence of digestive system disorders in the Azeri population of East Azerbaijan, Iran, while considering the influence of underlying social and economic conditions. A case-control study involved 186 patients diagnosed with digestive system disorders and 185 healthy controls. Data were collected via questionnaires that assessed demographic factors, black tea and coffee consumption habits, water intake, and socioeconomic status. We used a rapid urease test to detect Helicobacter pylori infection in the patients. Statistical analyses were performed using the chi-square test, with a p-value less than 0.05 as statistically significant. Black tea and coffee consumption was significantly higher in the patients than in the healthy controls (p < 0.05). Patients also had lower levels of education and financial status. Daily water intake was significantly lower in patients, while consumption of liquids with meals was higher (p < 0.05). Additionally, patients who consumed black tea and coffee after meals had a higher prevalence of digestive disorders. High consumption of black tea and coffee is associated with an increased risk of digestive system disorders, especially among individuals with lower socioeconomic status. These findings suggest that dietary habits, along with underlying social and economic conditions, should be considered when managing digestive health, especially in populations with high black tea and coffee consumption.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 Responsabilidade social da mulher na sucessão da cafeiculturana Região das Matas de Minas(Universidade de Taubaté - UNITAU, 2019-12-31) Faria, Mariana Rodrigues de; Ferreira, Williams Pinto Marques; Ferreira, Silvana Maria Novais; Salton, AngeloA produção de café na região das Matas de Minas é responsável pela quarta parte do total produzido em Minas Gerais, sendo que grande parte desta produção é proveniente da agricultura familiar. Porém, as propriedades familiares são caracterizadas por serem conduzidas pelo núcleo familiar e com pouco auxí¬lio tecnológico, podendo tornar sua continuidade incerta para as gerações futuras. Objetivou-se abordar o processo de sucessão entre gerações de cafeicultores dentro dos contextos culturais, econômicos e sociais, dando ênfase no papel da mulher no processo de hereditariedade da cultura agrí-cola aos filhos. No presente estudo, foram analisados 146 questionários aplicados às mulheres das propriedades rurais da região das Matas de Minas, abordando sua participação no processo de sucessão.Foram utilizadas análises estatí¬sticas descritivas para discussão dos resultados. Foi possí¬vel observar que as mulheres entrevistadas participam do processo de sucessão da atividade cafeeira. Porém, não existem estratégias para a realização do processo de sucessão, bem como critérios definidos para a escolha dos herdeiros. Existe a tendência de a cafeicultura possuir a tradição das famí¬lias em trabalhar nesse setor, podendo influenciar os responsáveis a motivarem seus possí¬veis herdeiros a permanecerem nessa atividade. Conclui-se que é necessário haver maior preocupação e planejamento por parte das famí¬lias envolvidas na cafeicultura para que os futuros herdeiros se sintam engajados e motivados a continuar nesse setor. As mulheres, apesar de praticarem o processo de sucessão no meio rural, precisam ter consciência da importância do papel que exercem tanto dentro da famí¬lia quanto no processo de preparação dos possí¬veis sucessores.Item Domínio Tecnológico distribuído: evidências da agroindústria de café brasileira(Universidade de Taubaté - UNITAU, 2019-05-30) Gonzalez, Rafael KuramotoEste artigo diz respeito ao desenvolvimento tecnológico e inovação numa indústria intensiva em processamento de recursos naturais (IIPRN) no contexto brasileiro. É objetivo da pesquisa explorar como o domí¬nio tecnológico distribuí¬do auxiliou no desenvolvimento tecnológico de uma agroindústria de café solúvel nas décadas de 1970 a 2010. A literatura de inovação já apresenta uma considerável compreensão acerca do processo desagregado e distribuí¬do de construção de domí¬nio tecnológico entre parceiros em empresas de economias emergentes. Contudo, pouco se explorou como esse domí¬nio distribuí¬do se modifica e/ou evolui ao longo do tempo. Ademais, alguns estudos encapsulam as IIPRN com limitada oportunidade de criação de conhecimento tecnológico, desenvolvimento de atividades de inovação e externalidades positivas para o desenvolvimento econômico. Entretanto, pouco se investigou o processo de industrialização e de desenvolvimento tecnológico em IIPRN, com raras exceções. Baseando-se em evidências da agroindústria do café solúvel, por meio de um desenho qualitativo com base em uma estratégia de estudo de caso em ní¬vel de empresa, e com cobertura de longo prazo, esta pesquisa encontrou: (a) Heterogeneidade nos tipos de parceiro acessados e formação do domí¬nio tecnológico distribuí¬do entre as diferentes funções tecnológicas; (b) Heterogeneidade nos tipos de parceiro e formação do domí¬nio tecnológico distribuí¬do ao longo do tempo. Ademais, a pesquisa concluiu que as IIPRN podem oferecer oportunidades para inovações significativas, serem protagonistas na criação tecnologias e participarem ativamente de redes complexas de conhecimento tecnológico.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.