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外観
無色～黄褐色, 澄明の液体
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定義
本品は、トウモロコシ Zea mays の種子から得られる脂肪油である。
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溶解性
アセトンに極めて溶けやすく、エタノール及び水にほとんど溶けない。
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解説
トウモロコシ油，コーン油ともいう。トウモロコシZea maysの種子の胚芽から圧搾によって得られる油。種子の含油率は3.6～5.7％，胚芽含油率は30～40％。アメリカが主産地である。融点－10～－18℃，比重d415＝0.920～0.928，屈折率nD20＝1.473～1.476，ケン化価187～198，ヨウ素価88～147。脂肪酸組成はリノール酸54～58％，オレイン酸29～30％，パルミチン酸12～13％，ステアリン酸2％など。
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用途
油脂研究用、硬化油及び塗料の原料。
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化粧品の成分用途
ヘアコンディショニング剤、閉塞剤、乳化剤、香料
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化学的特性
Clear light yellow or yellow oil
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使用
corn oil is used as a carrier oil, it has average emollient properties. Although not particularly prone to cause allergies, it is also not widely used in cosmetic formulations. It is considered somewhat comedogenic. Corn oil is obtained from the wet milling of corn.
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調製方法
Refined corn oil is obtained from the germ or embryo of Zea mays Linne(Fam.Gramineae),which contains nearly 50% of the fixed oil compared with 3.0–6.5% in the whole kernel. The oil is obtained from the embryo by expression and/or solvent extraction. Refining involves the removal of free fatty acids, phospholipids, and impurities; decolorizing with solid adsorbents; dewaxing by chilling; and deodorization at high temperature and under vacuum.
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一般的な説明
Clear light yellow or yellow oily liquid. Faint taste. Faint odor.
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空気と水の反応
Insoluble in water.
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反応プロフィール
On prolonged exposure to air, CORN OIL thickens and becomes rancid. CORN OIL is sensitive to light.
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火災危険
CORN OIL is combustible.
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応用例（製薬）
Corn oil is used primarily in pharmaceutical formulations as a solvent for intramuscular injections or as a vehicle for topical preparations. Emulsions containing up to 67% corn oil are also used as oral nutritional supplements; see also Section 18. When combined with surfactants and gel-forming polymers, it is used to formulate veterinary vaccines.
Corn oil has a long history of use as an edible oil and may be used in tablets or capsules for oral administration.
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农业用途
Corn oil is an adjuvant used in herbicide sprays. It improves their function by improving wetting, reducing evaporation, increasing penetration and enhancing deposition and compatibility. Corn oil is not phyto-toxic; it is added for better penetration in plant leaves.
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安全性プロファイル
Human skin irritant. An
experimental teratogen. May be an allergen.
Combustible liquid when exposed to heat or
flame. Dangerous spontaneous heating may
occur during storage if leaks impregnate
rags, waste, etc. To fight fire, use Con, dry
chemical.
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安全性
Corn oil is generally regarded as a relatively nontoxic and nonirritant material with an extensive history of usage in food preparation.
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貯蔵
Corn oil is stable when protected with nitrogen in tightly sealed bottles. Prolongedexposureto airleads tothickening and rancidity. Cornoilmaybesterilizedbydryheat,maintainingitat150°C for 1 hour.
Corn oil should be stored in an airtight, light-resistant container in a cool, dry place. Exposure to excessive heat should be avoided.
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不和合性
The photooxidation of corn oil is sensitized by cosmetic and druggrade samples of coated titanium oxide and zinc oxide.
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規制状況(Regulatory Status)
Included in the FDA Inactive Ingredients Database (IM injections, oral capsules, suspensions, and tablets). Included in the Canadian List of Acceptable Non-medicinal Ingredients.
