An innovative dryer for Arabica coffee (Coffea arabica L.) drying: Investigating heat and mass transfer Paulo S. Andrade, Claudio R. Duarte, Marcos A.S. Barrozo Drying Technology, 2024 In the pursuit of advancing post-processing techniques for Arabica coffee, our research introduces a rotary dryer, known as a roto-aerated dryer, marking its first application in coffee drying and surpassing conventional methods. This study delves into the evaluation of heat and mass transfer dynamics between coffee and drying air within the innovative dryer. Characterization of raw materials precedes a series of drying experiments under varied conditions, forming the basis for a mathematical two-phase model elucidating the underlying dynamics of the drying process. Noteworthy is the significantly reduced material residence time (14.60–27.47 min) compared to conventional dryers. Drying rates (0.09–0.24 g water/100 g solid/min) surpass those achieved by other methods. Simulated results from the numerical solution of the two-phase model closely align with experiments (average error of 2.39% for moisture content and 0.89% for temperature). The effective preservation of material quality, particularly acidity, underscores the valuable insights offered for optimizing drying processes, holding substantial potential for advancing the specialty coffee industry.
Bilayer biocomposites of PVOH/WPI/nano-silica treated with corona discharge Bruna Rage Baldone Lara, Paulo Sérgio de Andrade, Ana Carolina Salgado de Oliveira, Mario Guimarães Junior, Lays Camila Matos, Gustavo Henrique Denzin Tonoli, Marali Vilela Dias Polymer Engineering and Science, 2022 In order to evaluate the influence of a different assembly of biocomposites of polyvinyl alcohol (PVOH), whey protein isolates (WPI), and nano‐silica (NS), a bilayer film treated with corona discharge was produced through a two‐step lamination. The first layer of PVOH/NS, treated with up to 90 s of discharge, and the second layer of WPI/NS, the bilayer films had their morphology, tensile strength, and water barrier investigated and compared to a single layer PVOH/WPI/NS film. Corona discharge increased the wettability of the first layer, improving the ability to interact with the second layer, thus increasing the adherence between these layers. Films treated with higher times of discharge showed a homogeneous transition between phases, suggesting compatibility, and adherence between layers. At 90 s of corona discharge treatment, bilayer films showed a tensile strength 72% higher than the bilayer film not treated and also 23% more resistant and 7.4 times more ductile than the single‐layer film. The lamination process and corona treatment increase the affinity of water with film constituents, thus leading to a higher permeability. The use of corona discharge associated with the lamination of PVOH/WPI/NS biocomposites provides a bilayer film and produces a more resistant, flexible, and ductile biocomposite film for packaging.
SECAGEM DE CAFÉ ARÁBICA EM SECADOR ROTO-AERADO: AVALIAÇÃO DA TRANSFERÊNCIA DE CALOR E MASSA DO PROCESSO E SEU IMPACTO NA ACIDEZ DO GRÃO PS Andrade, CR Duarte, MAS Barrozo ENEMP 2024, 1-9 , 2024 2024
Improving the quality of Arabica coffee (Coffea arabica L.) through innovative optimization of roto-aerated drying PS de Andrade, CR Duarte, MA de Souza Barrozo Innovative Food Science & Emerging Technologies 96, 103770 , 2024 2024 Citations: 6
An innovative dryer for Arabica coffee ( Coffea arabica L.) drying: Investigating heat and mass transfer PS Andrade, CR Duarte, MAS Barrozo Drying Technology 42 (6), 1065-1076 , 2024 2024 Citations: 8
Estudo da secagem de café arábica (Coffea arabica L.) despolpado em secador roto-aerado PS Andrade Universidade Federal de Uberlândia , 2023 2023
Bilayer biocomposites of PVOH/WPI/nano‐silica treated with corona discharge BRB Lara, PS de Andrade, ACS de Oliveira, MG Junior, LC Matos, ... Polymer Engineering & Science 62 (12), 3923-3934 , 2022 2022 Citations: 4
Cassava starch films: Effect of polyvinyl alcohol on films’ water diffusion, permeation and sorption behavior and mechanical properties PS de Andrade, BR Baldone Lara, B de Souza Nascimento, MV Dias Iranian Polymer Journal 31 (11), 1431-1446 , 2022 2022 Citations: 7
MODELAGEM DE TRANSFERÊNCIA DE CALOR E MASSA DA SECAGEM DE CAFÉ DESPOLPADO (Coffea arabica L.) EM SECADOR ROTO-AERADO PS DE ANDRADE, TKG ANRAKU, VS FARIA, F RC, CR BORGES, ... 2022
Novel whey protein isolate/polyvinyl biocomposite for packaging: Improvement of mechanical and water barrier properties by incorporation of nano-silica BRB Lara, PS de Andrade, M Guimaraes Junior, MV Dias, LAP Alcântara Journal of Polymers and the Environment 29 (8), 2397-2408 , 2021 2021 Citations: 30
Water sorption thermodynamic behavior of whey protein isolate/polyvinyl alcohol blends for food packaging BRB Lara, MV Dias, MG Junior, PS de Andrade, B de Souza Nascimento, ... Food Hydrocolloids 103, 105710 , 2020 2020 Citations: 34
MOST CITED SCHOLAR PUBLICATIONS
Water sorption thermodynamic behavior of whey protein isolate/polyvinyl alcohol blends for food packaging BRB Lara, MV Dias, MG Junior, PS de Andrade, B de Souza Nascimento, ... Food Hydrocolloids 103, 105710 , 2020 2020 Citations: 34
Novel whey protein isolate/polyvinyl biocomposite for packaging: Improvement of mechanical and water barrier properties by incorporation of nano-silica BRB Lara, PS de Andrade, M Guimaraes Junior, MV Dias, LAP Alcântara Journal of Polymers and the Environment 29 (8), 2397-2408 , 2021 2021 Citations: 30
An innovative dryer for Arabica coffee ( Coffea arabica L.) drying: Investigating heat and mass transfer PS Andrade, CR Duarte, MAS Barrozo Drying Technology 42 (6), 1065-1076 , 2024 2024 Citations: 8
Cassava starch films: Effect of polyvinyl alcohol on films’ water diffusion, permeation and sorption behavior and mechanical properties PS de Andrade, BR Baldone Lara, B de Souza Nascimento, MV Dias Iranian Polymer Journal 31 (11), 1431-1446 , 2022 2022 Citations: 7
Improving the quality of Arabica coffee (Coffea arabica L.) through innovative optimization of roto-aerated drying PS de Andrade, CR Duarte, MA de Souza Barrozo Innovative Food Science & Emerging Technologies 96, 103770 , 2024 2024 Citations: 6
Bilayer biocomposites of PVOH/WPI/nano‐silica treated with corona discharge BRB Lara, PS de Andrade, ACS de Oliveira, MG Junior, LC Matos, ... Polymer Engineering & Science 62 (12), 3923-3934 , 2022 2022 Citations: 4
SECAGEM DE CAFÉ ARÁBICA EM SECADOR ROTO-AERADO: AVALIAÇÃO DA TRANSFERÊNCIA DE CALOR E MASSA DO PROCESSO E SEU IMPACTO NA ACIDEZ DO GRÃO PS Andrade, CR Duarte, MAS Barrozo ENEMP 2024, 1-9 , 2024 2024
Estudo da secagem de café arábica (Coffea arabica L.) despolpado em secador roto-aerado PS Andrade Universidade Federal de Uberlândia , 2023 2023
MODELAGEM DE TRANSFERÊNCIA DE CALOR E MASSA DA SECAGEM DE CAFÉ DESPOLPADO (Coffea arabica L.) EM SECADOR ROTO-AERADO PS DE ANDRADE, TKG ANRAKU, VS FARIA, F RC, CR BORGES, ... 2022
