Modeling of lipase-catalyzed acidolysis of sesame oil and caprylic acid by response surface methodology: optimization of reaction conditions by considering both acyl incorporation and migration
- Authors
- 김병희; Akoh, Casimir C.
- Issue Date
- Oct-2005
- Publisher
- American Chemical Society
- Citation
- Journal of Agricultural and Food Chemistry, v.53, no.20, pp 8033 - 8037
- Pages
- 5
- Journal Title
- Journal of Agricultural and Food Chemistry
- Volume
- 53
- Number
- 20
- Start Page
- 8033
- End Page
- 8037
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148724
- DOI
- 10.1021/jf0509761
- ISSN
- 0021-8561
1520-5118
- Abstract
- Lipase-catalyzed acidolysis in hexane to produce structured lipids (SLs) from sesame oil and caprylic acid was optimized by considering both total incorporation (Y-1) and acyl migration (Y-2). Response surface methodology was applied to model Y-1 and Y-2, respectively, with three reaction parameters: temperature (Xi), reaction time (X-2), and substrate molar ratio (X-3). Well-fitting models for Y-1 and Y-2 were established after regression analysis with backward elimination and verified by a X-2 test. All factors investigated positively affected Y-1. For Y-2, X-1 showed the greatest positive effect. However, there was no effect of X-3. We predicted the levels of Y-2 and acyl incorporation into sn-1,3 positions (Y-3) based on Y-1. The results showed that over the range of ca. 55 mol % of Y-1, Y-3 started to decrease, and Y-2 increased rapidly, suggesting that Y-1, should be kept below ca. 55 mol % to prevent decrease in quality and yield of targeted SLs.
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