A pimenta bico, pertencente à espécie Capsicum chinense, é muito utilizada na culinária brasileira no preparo de diversos pratos e também em conservas. Por se tratar de um alimento altamente perecível, faz-se necessária a utilização de métodos para a sua conservação, destacando-se o processo de secagem. O presente trabalho teve como objetivo determinar e analisar a cinética de secagem da pimenta bico em diferentes condições de temperatura e velocidade do ar de secagem. A pimenta foi submetida ao processo de secagem por meio de um secador de bandejas em camada delgada, com velocidade do ar de secagem controlada a 1,0; 1,5 e 2,0 m/s e temperatura de 40, 50 e 60 °C. As pimentas foram colocadas no interior do equipamento em bandejas removíveis de aço inoxidável e as amostras, pesadas periodicamente até o equilíbrio ser atingindo. Os modelos matemáticos de Page, Henderson e Pabis, Midilli e Kucuk, Thompson e Aproximação da difusão foram ajustados aos dados experimentais. O melhor ajuste foi determinado em função dos maiores valores do coeficiente de determinação (R 2 ), menores valores de desvio médio relativo (P) e do erro médio estimado (SE). Os resultados obtidos mostraram que a secagem da pimenta é influenciada pela velocidade e temperatura do ar de secagem, visto que quanto maior a temperatura do ar de secagem, mais rapidamente obtém-se o equilíbrio de umidade das amostras. O modelo de Midilli e Kucuk foi o que se ajustou melhor aos dados experimentais. Os valores de difusividade efetiva encontrados variam de 1,65 × 10 -10 a 5,01 × 10 -10 m 2 /s e a energia de ativação varia de 98,42 a 108,13 kJ/mol. Palavras-chave: Capsicum chinense; Conservação; Midilli e Kucuk. SummaryThe beak pepper belongs to the species Capsicum chinense and it is widely used in Brazilian cuisine in the preparation of various dishes and also pickled pepper. Since this is a highly perishable food, it is necessary to use methods for its preservation, highlighting the drying process. The objective of this work was to determine and analyze the drying kinetics of beak pepper under different conditions of temperature and air velocity of drying. The pepper was submitted to the drying process using a tray dryer in thin layer with drying air velocity controlled at 1.0, 1.5 and 2.0 m/s and temperature of 40, 50 and 60 °C. The peppers were placed into the equipment on removable stainless steel trays and specimens were weighed periodically until equilibrium is reached. The mathematical models of Page, Henderson and Pabis, Midilli and Kucuk, Thompson and Approximation of diffusion were adjusted to the experimental data. The best fit was determined according to the highest values of the coefficient of determination (R 2 ), lower average deviation values (P) and the estimated average error (SE). The results obtained were that the pepper drying is influenced by the velocity and temperature of the drying air, since the higher the drying air temperature more quickly the equilibrium moisture content of the samples is reached. The Midilli and Kucuk model pres...
Several types of seeds have been initially used in the food industry due to the great potential that vegetable proteins have. Baru is a fruit commonly found in the Cerrado biome, having a high nutritional value. This paper aimed to determine and analyze the drying kinetics of whole and defatted baru almond flours at different temperatures. The flour resulting from almond milling was defatted using petroleum ether. The drying processes were performed at temperatures of 40, 50 and 60 ºC. The mathematical models of Page, Henderson and Pabis, Midilli & Kucuk, Thompson and Approximation of Diffusion were fitted to the experimental data. The results showed a noticeable effect of air temperature on the drying kinetics of whole and defatted baru almond flours. According to the statistical parameters of analysis, the models Midilli & Kucuk and Page were the ones with the best fits to the experimental data. The effective diffusivity values found ranged from 8.02 × 10–10 to 19.90 × 10–10 m2 s-1 and for the activation energy were 22.39 and 39.37 KJ mol-1 for whole and defatted almonds, respectively.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.