Response surfaces of hazelnut oil yield in supercritical carbon dioxide

Date

2005-01-01

Author

Ozkal, SG
Yener, Meryem Esra
Salgin, U
Mehmetoglu, U

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Response Surface Methodology was used to determine the effects of solvent flow rate (1, 3 and 5 g/ min), pressure (300, 375 and 450 bar) and temperature (40, 50 and 60 degreesC) on hazelnut oil yield in supercritical carbon dioxide (SC-CO2). Oil yield was represented by a second order response surface equation (R-2 = 0.997) using Box-Bhenken design of experiments. Oil yield increased with increasing SC-CO2 flow rate, pressure and temperature. The maximum oil yield was predicted from the response surface equation as 0.19 g oil/g hazelnut (34% of initial oil) when 4 g hazelnut particles (particle diameter < 0.85 mm) were extracted with 5 g/min SC-CO2 flow rate at 450 bar, and 60 degreesC for 10 min. Total extraction time at these conditions was predicted to be 35 min.

Subject Keywords

Biotechnology, Food Science, Industrial and Manufacturing Engineering, Biochemistry, General Chemistry

URI

https://hdl.handle.net/11511/46845

Journal

EUROPEAN FOOD RESEARCH AND TECHNOLOGY

DOI

https://doi.org/10.1007/s00217-004-1013-3

Collections

Department of Food Engineering, Article

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Citation Formats

S. Ozkal, M. E. Yener, U. Salgin, and U. Mehmetoglu, “Response surfaces of hazelnut oil yield in supercritical carbon dioxide,” EUROPEAN FOOD RESEARCH AND TECHNOLOGY, pp. 74–78, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46845.