View More View Less
  • 1 Zhejiang University, Hangzhou 310058, China
  • | 2 Zhejiang University, Hangzhou 310058, China
Restricted access

Purchase article

USD  $25.00

1 year subscription (Individual Only)

USD  $878.00

The refinement of unsaturated fatty acids (UFA) from Hippophae rhamnoides L. seed oil was carried out by molecular distillation (MD) using response surface methodology (RSM). A central composite rotate design was used in order to optimize the experimental parameters: distilling temperature and feed flow. The optimal MD conditions were determined and the quadratic response surfaces were drawn from the mathematical models. The results suggested that the distilling temperature and feed flow significantly affected both the UFA content and oil yield in the two models. The optimum conditions for refining UFA were: distilling temperature 107.5 °C and feed flow 1 ml min−1. Optimal values predicted by RSM for the UFA content and oil yield were 82.38% and 62.59%, respectively. Close agreement between experimental and predicted values was obtained.

  • ATKINSON, A.C. & DONEV, A.N. (1992): Optimum experimental designs. Oxford University Press, Oxford, pp. 132189.

  • BOX, G.E.P. & WILSON, K.G. (1951): On the experimental attainment of optimum conditions. J. R. Stat. Soc. Ser. B-Stat. Methodol., 13, 145.

    • Search Google Scholar
    • Export Citation
  • BEREZHNAYA, G.A., OZERININA, O.V., YELISEEV, I.P., TSYDENDAMBAEV, V.D. & VERESHCHAGIN, A.G. (1993): Developmental changes in the absolute content and fatty acid composition of acyl lipids of sea buckthorn fruits. Plant Physiol. Biochem., 31, 323332.

    • Search Google Scholar
    • Export Citation
  • CVENGROS, J. (1995): Physical refining of edible oils. J. Am. Oil Chem. Soc., 72, 11931196.

  • DAVIS, P.H. (1982): Flora of Turkey and the East Aegean Islands. University Press, Edinburgh, pp. 532534.

  • JOHANSSON, A., LAAKSO, P. & KALLIO, H. (1997): Characterization of seed oils of wild edible Finnish berries. Z. Lebensm. Unters. Forsch. A, 204, 300307.

    • Search Google Scholar
    • Export Citation
  • KHURI, A.A. & CORNELL, J.A. (1987): Response surface: design and analyses. Marcel Dekker Inc., New York, pp. 117, 254.

  • MICOV, M., LUTISAN, J. & CVENGROS, J. (1997): Balance equations for molecular distillation. Sep. Sci. Technol., 32, 30513066.

  • MARTINELLO, M., HECKER, G. & PRAMPARO, M.D.C. (2007): Grape seed oil deacidification by molecular distillation: Analysis of operative variables influence using the response surface methodology. J. Fd Engng, 81, 6064.

    • Search Google Scholar
    • Export Citation
  • MARTINS, P.F., ITO, V.M., BATISTELLA, C.B. & MACIEL, M.R.W. (2006): Free fatty acid separation from vegetable oil deodorizer distillate using molecular distillation process. Sep. Purif. Technol., 48, 7884.

    • Search Google Scholar
    • Export Citation
  • MARTÍN-MARTÍNEZ, E.S., MARTÍN-MARTÍNEZ, M.R., MARTÍN-MARTÍNEZ, F. & MARTÍN-MARTÍNEZ, J.L. (2003): Selective nixtamalization of fractions of maize grain (Zea mays L.) and their use in the preparation of instant tortilla flours analyzed using response surface methodology. Cereal Chem., 80, 1319.

    • Search Google Scholar
    • Export Citation
  • NATIONAL STANDARD OF P.R. CHINA (1995): Animal and vegetable fats and oil — Preparation of test sample. GB/T 15687

  • ROCHE, H.M. (1999): Unsaturated fatty acids. Proc. Nutr. Soc., 58, 397401.

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Jan 2021 1 0 0
Feb 2021 1 0 0
Mar 2021 1 0 0
Apr 2021 7 0 0
May 2021 3 0 0
Jun 2021 1 0 0
Jul 2021 0 0 0