Solid–Liquid Mass Transfer Coefficients in an Ultrasound-Irradiated Extraction of Iota-Carrageenan
作者： D. Krishnaiah , D. M. R. Prasad , R. Sarbatly , A. Bono , S. M. Anisuzzaman
DOI: 10.1007/978-1-4614-6208-8_31
关键词: Intensity (heat transfer) 、 Extraction (chemistry) 、 Particle size 、 Mass transfer 、 Yield (chemistry) 、 Mass transfer coefficient 、 Ultrasonic sensor 、 Eucheuma denticulatum 、 Analytical chemistry 、 Materials science
摘要: A 20-kHz intensity ultrasound was used in the extraction of iota-carrageenan from Eucheuma denticulatum seaweed by using water as solvent. In a simplified procedure, particle size 0.7125E-03 m, 1.2E-03 and 1.7E-03 m diameter were studied at different ultrasonic amplitude levels, ranging 2.08E-06 to 6.4E-06 temperatures 30 60 °C. The maximum yield obtained 57.2 %. This study suggested that employed reduced time required improved 6 variation during found be linear equation. solid–liquid mass transfer coefficient correlated for terms operating conditions this investigation as $$ k_{L} = 0.0027 A^{0.866} D_{p}^{ - 0.533} \left( T \right)^{0.133} $$
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