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Development of Mathematical Model for the Hydrolysis Fish Oil  

Kim Won-Ho (Department of Biological and Chemical Engineering, College of Engineering, Inha University)
Lee Yong-Hoon (Department of Biological and Chemical Engineering, College of Engineering, Inha University)
Park Ji-Suk (Department of Biological and Chemical Engineering, College of Engineering, Inha University)
Hur Byung-Ki (Department of Biological and Chemical Engineering, College of Engineering, Inha University)
Publication Information
KSBB Journal / v.20, no.2, 2005 , pp. 106-111 More about this Journal
Abstract
The functional relationship between the number of mole of an i-fatty acid (Si) included in fish oil and the hydrolysis time(t) was expressed as a mathematical model, $S_i=-{\alpha_i}1n(t)+\beta_i$. The average errors of calculated values on the basis of the measured values were distributed in the range of less than $5\%$ for all the 15 fatty aids composing of fish oil. The equation of hydrolysis rate of each fatty acid was deduced as $v_i={\gamma_i}exp(\frac{S_i}{\alpha_i})$ from the above-mentioned $S_i=-{\alpha_i}ln(t)+{\beta_i}$. Therefore the hydrolysis yields of fatty acids were analyzed using the equation of $S_i\;Vs.\;t.$. The 15 fatty acids were categorized into 4groups from the view point of hydrolysis yield. The hydrolysis yields of the first group, including C14:0, C16:0, C16:1, C18:0, C18:1 (n-7) and 1l8:1 (n-9), were higher than $70\%$ at 48 hr of hydrolysis. Those of the second group, C20:1, C22:1, C18:3, C20:4 and C20:5, were distributed from $40\%,\;to\;60\%$, and third group were around $30\%$. The final group containing only C22:6 was very hard to be hydrolyzed and the yield was less than $20\%$ at the same time.
Keywords
Hydrolysis; hydrolysis yield; equation of hydrolysis rate; mathematical model; fatty acid;
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