Corn oil is oil extracted from the germ of corn. Its main use is in cooking, where its high smoke point makes it a valuable frying oil. It is also a key ingredient in some margarines. Corn oil has a milder taste and is less expensive than most other types of vegetable oils.

Refined corn oil is 99% triglyceride, with proportions of approximately 59% polyunsaturated fatty acid, 24% monounsaturated fatty acid, and 13% saturated fatty acid.

Corn oil is also one source of biodiesel. Biodiesel is commonly made from soybeans, but as corn oil refining technology improves, it will become a greater source of biodiesel and a backup source in case of large-scale soybean crop failures. Other industrial uses for corn oil include soap, salve, paint, rustproofing for metal surfaces, inks, textiles, and insecticides. It is sometimes used as a carrier for drug molecules in pharmaceutical preparations.

Corn Oil is the refined fixed oil obtained from the embryo of Zea mays Linné (Fam. Gramineae).

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Unit of Measure

Specifications

Specific Gravity Range at 25ºC According to United States Pharmacopeia (USP) Test Method

N/A 0.914 to 0.921

Iodine Value Range According to United States Pharmacopeia (USP) Test Method

N/A 102 to 130

Saponification Value Range According to United States Pharmacopeia (USP) Test Method

N/A 187 to 193

Free Fatty Acids Value for 0.02 Normal Sodium Hydroxide (NaOH) According to United States Pharmacopeia (USP) Test Method

N/A <2.0 mL

Maximum Peroxide Value According to United States Pharmacopeia (USP) Test Method

N/A 5 mEq/kg

Unsaponifiable Matter Value According to United States Pharmacopeia (USP) Test Method

N/A <1.5 %

Maximum Color Gardner According to American Oil Chemists Society (AOCS) Td la-64 Test Method

N/A 5

Appearance

N/A Golden yellow
Bright and clear
Oily liquid

Odor

N/A Bland
Odorless

Footnote

N/A Because of natural variations in oilseed crops, chemical and physical constants cannot be guaranteed at all times. How-ever, oil sold as National Formulary (NF) is guaranteed to meet the National Formulary (NF) monograph.

Corn Oil for Cooking

N/A The corn oil is used for frying, as a shortening in baking., salad dressings, margarine, etc.

Corn Oil for External Use

N/A Corn oil is also used as a skin soother and softener (emollient). It is rich in linoleic acid, one of the three essential fatty acids. It is sometimes used as a carrier for drug molecules in pharmaceutical preparations.

Corn Oil for Biodiesel

N/A Corn oil is also one source of biodiesel. Biodiesel is commonly made from soybeans, but as corn oil refining technology improves, it will become a greater source of biodiesel and a backup source in case of large-scale soybean crop failures.

Corn Oil for Industrial Use

N/A Industrial uses for corn oil include soap, salve, paint, rustproofing for metal surfaces, inks, textiles, and insecticides