Eficiência do uso de micro-ondas para determinação de umidade em grãos de soja (Glycine max (l.) Merr.): Uso na radiação não-ionizante na agricultura

• Autor(a) principal: Nunes Zolini, Gabriel
• Data de Publicação: 2022
• Outros Autores: Ribeiro Costa, Thaís, Aparecida da Costa Nobre, Danúbia, Silveira da Silva, Ricardo
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Diversitas Journal
• Texto Completo: https://diversitasjournal.com.br/diversitas_journal/article/view/1713
• topic: Cultura Agrícola; Estufa; Método Alternativo; Secagem; Teor de água

The moisture content is an essential parameter for maintaining the grains' quality, from harvest to storage. Therefore it is necessary to establish fast and accurate methods for their determination. In this sense, this study's objective was to compare the standard method with 105 ºC / 24h the alternative microwave method to determine the moisture of soybeans. The experimental design used was completely randomized with four replications containing 50 grains. Two microwave powers were used: 560 W and 700 W. The times were 1', 1' 30", 2', 2' 30" and 3' for each power. The results obtained in the analyses were submitted to the F test for ANOVA (α = 5%), and the means were compared by the Dunnet and Tukey tests (α = 5%). Regression analyzes were performed to determine the optimum time at each power (α = 5%). It was found that the moisture content obtained by the microwave in the time of 2" on the 560 W and 700 W power, proved to be efficient in determining the moisture content of soybeans grains. Therefore, the microwave method can be a viable alternative to the standard (105 ºC / 24h), with considerably reduced time.