Use of Echium oil fatty acids and tricaprylin as substrates of enzymatic interesterification for the production of structured lipids
| Autor: | A. Yüksel, N. Şahin-Yeşilçubuk |
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| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Grasas y Aceites, Vol 69, Iss 1, Pp e236-e236 (2018) |
| Druh dokumentu: | article |
| ISSN: | 0017-3495 1988-4214 |
| DOI: | 10.3989/gya.0996171 |
| Popis: | Structured lipids (SLs) were produced from the free fatty acids of Echium oil and tricaprylin by enzymatic acidolysis reactions. Lipozyme® RM IM, immobilized sn-1,3 specific lipase was used in the enzymatic reactions. In order to optimize the incorporation of stearidonic acid (SDA), three factors were chosen [Reaction temperature (50-60 ºC), reaction time (6-12 hour) and substrate molar ratio (3-6 mol/mol (total free fatty acids/tricaprylin)] for the application of response surface methodology (RSM) using a central composite circumscribed design (CCC) with five levels. The optimum temperature, time and substrate molar ratio obtained from the models were 60 ºC; 6 h, 6 mol/mol, respectively. Furthermore, SLs with 6.2% SDA content at sn-2 position were produced by scaling up the process. SL was obtained with nearly 78-79% of long-chain fatty acids at the sn-2 position. According to the melting profile analysis, the melting peaks of tricaprylin and Echium oil were sharper and narrower while the SL had more broadened peaks. |
| Databáze: | Directory of Open Access Journals |
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