US2163912A - Treatment of oleo oil - Google Patents

Treatment of oleo oil Download PDF

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Publication number
US2163912A
US2163912A US112564A US11256436A US2163912A US 2163912 A US2163912 A US 2163912A US 112564 A US112564 A US 112564A US 11256436 A US11256436 A US 11256436A US 2163912 A US2163912 A US 2163912A
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United States
Prior art keywords
oil
oleo
refined
soya bean
oleo oil
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Expired - Lifetime
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US112564A
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Harold S Mitchell
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Industrial Patents Corp
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Ind Patents Corp
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Priority to US112564A priority Critical patent/US2163912A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
    • A23D9/00—Other edible oils or fats, e.g. shortenings, cooking oils
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B5/00—Preserving by using additives, e.g. anti-oxidants
    • C11B5/0085—Substances of natural origin of unknown constitution, f.i. plant extracts

Definitions

  • One of the objects of the present invention is to provide asan article of commerce an improved edible oil and fat product stabilized against rancidity.
  • Another object of the invention is to provide an improved method of stabilizing oleo oil.
  • a soya bean oil having an iodine number (Wijs) of 120 to 140 which has been hydrogenated to a plastic body having an iodine number of 70 to 80 may be used in the stabilization of refined oleo oil.
  • the stabilizing effect of hydrogenated soya been oil increases somewhat as the product becomes more saturated, and I prefer to use a hy--v drogenated soya bean oil having an iodine number of 55 to 70.
  • the method of stabilizing -oleo oil which comprises alkali refining oleo oil and thereafter adding thereto and incorporating therewith a quantity of hydrogenated refined soya bean oil.
  • the method of stabilizing oleo oil which comprises alkali refining oleo oil and thereafter adding thereto and incorporating therewith from one percent to ten percent hydrogenated refined soya bean oil.
  • oleo oil stabilized against rancidity consisting of a large proportion oi. alkali refined oleo oil and a complement of hydrogenated refined soya bean oil.
  • oleo oil stabilized against rancidity consisting of ninety to ninetyfive percent alkali refined oleo oil and a complement of hydrogenated refined soya bean oil.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Botany (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Beans For Foods Or Fodder (AREA)

Description

Patented June 27, 1939 UNITED STATES mmmm-or onno on. v
Harold s. Mitchell, Chicago, n|., assignor to Industrial Patents Corporation, Chicago, 111., a c poration of Delaware No Drawing. Application November 24; 1936, Serial No. 112,564
4 Claims.- (CL 87-12) This invention relates to an improved process of stabilizing such products as oleo oil against rancidity.
One of the objects of the present invention is to provide asan article of commerce an improved edible oil and fat product stabilized against rancidity. g V
Another object of the invention is to provide an improved method of stabilizing oleo oil.
In the copending application of Donald P. Grettie, entitled Stabilization of shortening, Serial No. 95,632, it is disclosed that hydrogenated refined soya bean oil is an effective antioxidant for edible fats and oils.
I have discovered that the efiectiveness of hydrogenated soya bean oil as an antioxidant for oleo oil is greatly increased by the preliminary refining of the oleo oil. The refining treatment employed is the conventional caustic refining method for the removal of free fatty acids, which is, as is well known, an alkali refining method. The term "refined oil as used in the specification will be understood to mean alkali refined oil.
The following table sets out data on actual tests carried out to demonstrate the value of the present invention.
It will be noted from the foregoing table that refined oleo oil has better keeping qualities than unrefined oleo oil. It will be further noted that hydrogenated refined soya bean oil has a decided antioxidant effect on unrefined oleo oil. It is clear, however, from the table, that the combination treatment involving first refining ordinary oleo oil and then adding hydrogenated refined soya bean oil, increases the stability of the product to a surprising degree.
A soya bean oil having an iodine number (Wijs) of 120 to 140 which has been hydrogenated to a plastic body having an iodine number of 70 to 80 may be used in the stabilization of refined oleo oil. The stabilizing effect of hydrogenated soya been oil increases somewhat as the product becomes more saturated, and I prefer to use a hy--v drogenated soya bean oil having an iodine number of 55 to 70.
I have found in practice that effective stabilization may be secured with varying amounts of hydrogenated refined soya bean oil as an addition product to refined oleo oil. In most instances it is sufilcient to incorporate from one percent to ten percent hydrogenated refined soya bean oil in the refined oleo oil to be stabilized. It will be understood, or course, that some stabilization will be secured with smaller amounts and that the effect is progressive as the amount is increased.
I claim:
1. The method of stabilizing -oleo oil which comprises alkali refining oleo oil and thereafter adding thereto and incorporating therewith a quantity of hydrogenated refined soya bean oil.
2. The method of stabilizing oleo oil which comprises alkali refining oleo oil and thereafter adding thereto and incorporating therewith from one percent to ten percent hydrogenated refined soya bean oil.
3. As an article of commerce, oleo oil stabilized against rancidity consisting of a large proportion oi. alkali refined oleo oil and a complement of hydrogenated refined soya bean oil.
4. As an article 01' commerce, oleo oil stabilized against rancidity consisting of ninety to ninetyfive percent alkali refined oleo oil and a complement of hydrogenated refined soya bean oil.
HAROLD S. MITCHELL.
US112564A 1936-11-24 1936-11-24 Treatment of oleo oil Expired - Lifetime US2163912A (en)

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