Two-stage extraction of soybean oil

Details Two-stage extraction of soybean oil Two-stage extraction of soybean oil

2003-09-30

2009-08-25

Carr, Deborah D (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C554S009000, C426S489000

Reexamination Certificate

active

07579492

ABSTRACT:
Soybean oil is extracted by a two-stage process in which up to 85%, preferably from about 60 to about 75%, of the soybean oil in soybeans is extracted by mechanical or solvent extraction to produce first extracted oil and oil-containing meal. The first extracted oil is then refined by caustic or physical refining. Substantially all of the oil remaining in the meal is extracted by solvent extraction to produce second extracted oil and substantially oil-free meal. The second extracted oil may be transesterified for use in biodiesel fuel.

REFERENCES:
patent: 5225230 (1993-07-01), Seaman et al.
patent: 6511690 (2003-01-01), Tysinger et al.
patent: 56-078561 (1981-06-01), None
Wingard, Journal of the American Oil Chemist Society, vol. 36, pp. 483-490, 1959.
Muniyappa et al., Bioresource Technology, 56(1), pp. 19-24, 1996.

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