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Whole sunflower seeds. A sunflower seed is a seed from a sunflower (Helianthus annuus). There are three types of commonly used sunflower seeds: linoleic (most common), high oleic, and sunflower oil seeds. Each variety has its own unique levels of monounsaturated, saturated, and polyunsaturated fats.
Sunflower oil can be extracted using chemical solvents (e.g., hexane), or expeller pressing (i.e., squeezed directly from sunflower seeds by crushing them). [23] "Cold-pressing" (or expeller pressing) sunflower seeds under low-temperature conditions is a method that does not use chemical solvents to derive sunflower seed oil. [24]
A number of pressed vegetable oils are either not edible, or not used as an edible oil. The fruit of the amur cork tree Castor beans are the source of castor oil. Astrocaryum vulgare (Tucumã) oil. Amur cork tree fruit oil, pressed from the fruit of the Phellodendron amurense. It has been studied for insecticidal use. [184] [185]
Linoleic acid is a component of quick-drying oils, which are useful in oil paints and varnishes. These applications exploit the lability of the doubly allylic C−H groups ( −CH=CH−C H 2 −CH=CH− ) toward oxygen in air ( autoxidation ).
Properties of vegetable oils [1] [2] The nutritional values are expressed as percent (%) by mass of total fat. Type Processing treatment [3] Saturated fatty acids Monounsaturated
Crotonic acid has 4 carbons, is included in croton oil, and is a trans-2-mono-unsaturated fatty acid. C 3 H 5 CO 2 H, IUPAC organization name (E)-but-2-enoic acid, trans-but-2-enoic acid, numerical representation 4:1, n-1, molecular weight 86.09, melting point 72–74 °C, boiling point 180–181 °C, specific gravity 1.027. CAS registry number ...
α-Linolenic acid, also known as alpha-linolenic acid (ALA) (from Greek alpha meaning "first" and linon meaning flax), is an n−3, or omega-3, essential fatty acid.ALA is found in many seeds and oils, including flaxseed, walnuts, chia, hemp, and many common vegetable oils.
A colorless oil, it is produced by the reduction of the carboxylic acid group in linoleic acid. [2] References This page was last edited on 9 April 2021, at 19 ...