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It is a stearin in the sense of stearins and oleins being the solid and liquid fractions respectively of fats and oils; not in the sense of glyceryl tristearate. It is more variable in composition than palm olein, the liquid fraction of palm oil, especially in terms of its solid fat content, and therefore has more variable physical characteristics.
The part with a higher melting point, which crystalizes out as a solid earlier, is called palm stearin. It consists of mostly saturated fats. The remaining liquid part is called palm olein. [26] It is also possible to fractionate at a different point of processing, even with crude palm oil. [27]
For stearin, these melt at 54 (α-form), 65, and 72.5 °C (β-form). [3] Note that stearin is also used to mean the solid component of an oil or fat that can be separated into components that melt at higher (the stearin) and lower (the olein) temperatures. This is the usage meant in an example such as palm stearin.
It is ivory in color when raw and commonly dyed yellow with borututu root or palm oil. It is widely used in cosmetics as a moisturizer or lotion. It is edible and is used in food preparation in some African countries. [3] It is occasionally mixed with other oils as a substitute for cocoa butter, although the taste is noticeably different. [4] [5]
It is related to two other edible oils: palm oil, extracted from the fruit pulp of the oil palm, and coconut oil, extracted from the kernel of the coconut. [2] Palm kernel oil, palm oil, and coconut oil are three of the few highly saturated vegetable fats; these oils give the name to the 16-carbon saturated fatty acid palmitic acid that they ...
As the price of crude oil rose in the late 1970s, [2] manufacturers switched from petrochemicals to oleochemicals [3] because plant-based lauric oils processed from palm kernel oil were cheaper. Since then, palm kernel oil is predominantly used in the production of laundry detergent and personal care items like toothpaste, soap bars, shower ...
These enabled him to elucidate the true nature of soap; he was also able to discover the composition of stearin, a white substance found in the solid parts of most animal and vegetable fats, and olein, the liquid part of any fat, and to isolate stearic and oleic acids, the names of which he invented. This work led to important improvements in ...
The remains of a peat forest in Indragiri Hulu, Riau Province, Indonesia to make way for oil palm plantation.. Production of palm oil in Indonesia has, since 1964, recorded a phenomenal increase from 157,000 metric tons (155,000 long tons; 173,000 short tons) to 41.5 million metric tons (40,800,000 long tons; 45,700,000 short tons) in 2018 [7] and a total of 51 million metric tons (50,000,000 ...