Volume 19, Issue 127 (2022)                   FSCT 2022, 19(127): 13-29 | Back to browse issues page

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Niknam R, Mousavi M, Kiani H. Modeling of ultrasound – assisted extraction of galactomannans obtained from Trigonella foenum – graceum (fenugreek) and Gleditsia caspica seeds: Using inverse numerical method. FSCT 2022; 19 (127) :13-29
URL: http://fsct.modares.ac.ir/article-7-61701-en.html
1- Department of Food Science and Technology, Campus of Agriculture and Natural Resources, University of Tehran, Karaj, Iran , rasoul.niknam97@ut.ac.ir
2- Department of Food Science and Technology, Campus of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Abstract:   (1075 Views)
Extraction of hydrocolloids from plant seeds is important due to the increased consumption of these compounds in the formulation of food products. Ultrasound-assisted extraction has become very popular due to its many advantages, one of the most important of which is to increase the extraction efficiency of the biopolymers. The aim of this research was to use inverse numerical method to estimate the effective parameters in mass transfer related to the ultrasound-assisted extraction of galactomannan form two plant seeds including fenugreek and Gleditsia caspica. To achieve this goal, the concentration of galactomannan extracted from both plant seeds was obtained against time and the experimental data and the data predicted by the software (based on the simulation) were compared which had proper convergence. Effective parameters in mass transfer including dispersion coefficient (E), diffusion coefficient (D) and total mass transfer coefficient (kc) were in the range of 1.21 – 1.52×10-12, 2.39 – 3.05×10-8 and 1.18 – 1.85×10-7m2/s for fenugreek galactomannan and 1.31 – 1.54×10-12, 2.63 – 3.11×10-8 and 1.46 – 1.95×10-7m2/s for Gleditsia caspica galactomannan. The difference between the values obtained for the two galactomannans could be attributed to the seed type, hardness or softness of the seed wall and characteristics of the target component. According to the obtained results, inverse numerical method could be introduced as an acceptable and effective method for modeling of the extraction process of both galactomannans.
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Article Type: Original Research | Subject: Hydrocolloids, emulsion
Received: 2022/05/21 | Accepted: 2022/08/10 | Published: 2022/09/1

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