Grasas y Aceites, Vol 43, No 5 (1992)

Optimizing conditions for enzymatic extraction of sunflower oil


https://doi.org/10.3989/gya.1992.v43.i5.1141

F. H. Badr
Food Science Department and Biochemistry Department. Faculty of Agriculture, Zagazig University, Egypt

M. Z. Sitohy
Food Science Department and Biochemistry Department. Faculty of Agriculture, Zagazig University, Egypt

Abstract


Sunflower seed oil was extracted with an enzymatic processes using different hydrolytic enzymes: cellulase, hemicellulase, animal proteinase, acid proteinase, pectinase and pectinex, as compared to enzyme - free aqueous extraction.
All the hydrolytic enzymes enhanced oil extraction from sunflower seeds. The most optimal conditions for oil extraction from sunflower seeds were: 2% enzyme concentration, 30% substrate concentration and 3 hrs period.
Using Boganov and Buchkov equation showed that time must be prolonged to get higher yields. The maximum yield during 3 hrs extraction with enzymatic process ranged between 44,5%-57,1% of the soxhlet extractable oil.
The potency of the investigated enzymes in extracting oil was in the following order: acid proteinase > cellulase > hemicellulase > animal proteinase > pectinex > pectinase when compared at the previous optimal conditions.

Keywords


Extraction; Hydrolytic enzyme; Optimizing; Sunflower oil

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