Coffee Science_v.17, 2022
URI permanente para esta coleção${dspace.url}/handle/123456789/13712
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Item Improving the quality of kombucha cascara with different varieties and fermentation time in diverse arabica coffee (Coffea arabica L) cultivars(Universidade Federal de Lavras, 2023-01-12) Rohaya, Syarifah; Multahadi; Sulaiman, IsmailOne of the innovations of cascara is the kombucha cascara which is made from the fermented coffee fruit skin, which is fermented with a kombucha starter or Symbiotic Culture of Bacteria and Yeast (SCOBY). The cascara used in this study was cascara from the Timtim, Borbor, and Ateng super coffee varieties. This study aims to determine the effect of different varieties of arabica coffee and fermentation time on the quality of kombucha cascara. This study used a factorial randomized block design method consisting of two factors. The first factor is cascara from coffee varieties consisting of three levels (Timtim, Borbor, Ateng super). The second factor is the length of fermentation, consisting of three levels (4, 8, and 12 days). Parameters analyzed were antioxidant activity, total phenol, tannin content, pH, and total microbe. The results showed that cascara from coffee varieties significantly affected antioxidant activity, and pH. Fermentation time significantly affects antioxidant activity, total phenol, tannin content, pH, and total microbial. The best treatment was obtained in the cascara treatment of the Ateng super coffee variety and the fermentation time was 12 days with the following characteristics; antioxidant activity 45.74%, total phenol 132,59 mg/L, tannin content 0.46%, pH value 2.69, and total microbes 4.99x104 CFU/ml.Item Impact assessment of the Coffee Social Network (Rede Social do Café)(Universidade Federal de Lavras, 2022-06-09) Pereira, Sérgio Parreiras; Bezerra, Luiza Maria Capanema; Fredo, Carlos Eduardo; Vegro, Celso Luis Rodrigues; Pereira, Cibele Maria Garcia de AguiarThe aim of the present study was to assess the impacts of the Coffee Social Network (Rede Social do Café, in portuguese) among different categories of users through the proposal of a method based on multidimensional indicators. The CSN shares information about coffee and promotes collaboration and exchange of experiences in the coffee ecosystem. In an online study conducted in 2019 with 366 respondents, we observed an overall measured impact of the CSN of 29.1%, ranging from 25% to 37%, among eight categories of users: Agroindustry, Technical Assistance and Rural Extension (TARE), Commer-cialization, Communication, Education, Research, Agricultural Production, and Other. The most expressive results were found in the Quality, Evolution in Knowledge, and Adoption of Technologies indicators, at 44.4%, 39.4%, and 38.4%, respectively. Such indicators refer to an established pattern in each one of the categories of users and are aligned with the objectives of the CSN and with its most frequent themes. The results found are relevant for the man-agement of the platform, whether as informative content or in relationship with users. Finally, the model of impact assessment proved to be appropriate for the CSN and can be applied in other social networks linked to agribusiness.