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A mix of oils other than the aforementioned exceptions may simply be listed as "vegetable oil" in Canada; however, if the food product is a cooking oil, salad oil or table oil, the type of oil must be specified and listing "vegetable oil" as an ingredient is not acceptable.
These oils make up a significant fraction of worldwide edible oil production. All are also used as fuel oils. Coconut oil, a cooking oil, with medical and industrial applications as well. Extracted from the kernel or meat of the fruit of the coconut palm. Common in the tropics, and unusual in composition, with medium chain fatty acids dominant. [6]
The structure below shows the major component of castor oil which is composed of the tri-ester of rincinoleic acid and glycerin: Major component of castor oil. Other vegetable oils - such as soy bean oil, [3] peanut oil, and canola oil - contain carbon-carbon double bonds, but no hydroxyl groups
Extra virgin olive oil or avocado oil are the healthiest cooking oils, the experts say. These are rich in heart-healthy monounsaturated fats, which help boost good cholesterol, and other nutrients.
In modern vegetable oil production, oils are usually extracted chemically, using a solvent such as hexane. Chemical extraction is cheaper and more efficient than mechanical extraction, at a large scale, leaving only 0.5–0.7% of the oil in the plant solids, as compared to 6–14% for mechanical extraction. [4]
Castor oil is a vegetable oil pressed from castor beans, the seeds of the plant Ricinus communis. [1] The seeds are 40 to 60 percent oil. [2] It is a colourless or pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm 3. [3]
An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active .
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