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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Identification of acoustic fields in aqueous biomass solutions of banana waste pretreated by power ultrasound

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Villa-Velez, H. A. [1, 2] ; Cornelio, M. L. [3] ; Correa, J. L. G. [4] ; Telis-Romero, J. [1]
Total Authors: 4
[1] Univ Estadual Paulista, Dept Engn & Tecnol Alimentos, Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Fed Maranhao, Ctr Ciencia Exatas & Tecnol, Curso Engn Quim, Ave Portugueses 1966, BR-65080805 Sao Luis, MA - Brazil
[3] Univ Estadual Paulista, Dept Fis, Sao Jose Do Rio Preto, SP - Brazil
[4] Univ Fed Lavras, Dept Ciencia Alimentos, Lavras, MG - Brazil
Total Affiliations: 4
Document type: Journal article
Source: BIOMASS CONVERSION AND BIOREFINERY; v. 8, n. 1, p. 87-96, MAR 2018.
Web of Science Citations: 0

High-intensity ultrasound is a technology used to improve the performance of processes in the chemical, pharmaceutical, biomass pretreatment, and food industries. However, few studies were described in the literature to comprehend the acoustic wave propagation in the material and their efficiency in the process. Thus, this study aims to determine the acoustic fields of aqueous biomass solutions from flower stalk banana using the calorimetric method and a determined sonotrode position. These tests were conducted at temperatures from 0 to 60 degrees C and ultrasound power from 120, 160, to 320 W. Also, the specific heat capacity and density of the solution were determined experimentally as a function of the solution concentration (0.040 to 0.100 g biomass mL(-1)), pH (3, 5, and 7), and temperature. The position of the thermocouple was maintained at 1 cm from the sonotrode, and the ultrasound frequency was 24 kHz. The methods and results presented in this study can be used to reproduce acoustic field calculations in aqueous biomass solutions, aiming the construction of acoustic processor systems. (AU)

FAPESP's process: 13/17497-5 - Determination of the best conditions of physical hydrolysis by power ultrasound in agroindustrial wastes
Grantee:Javier Telis Romero
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants