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There are three primary types of plant oil, differing both the means of extracting the relevant parts of the plant, and in the nature of the resulting oil: Vegetable fats and oils were historically extracted by putting part of the plant under pressure, squeezing out the oil. Macerated oils consist of a base oil to which parts of plants are added.
The plants may be annuals, herbaceous perennials or shrubs, growing to a height of 60–90 cm (24–35 inches). The genus was a wastebasket taxon , and many of its members have been reclassified in smaller genera, most notably the Everlastings, now in the genus Xerochrysum .
The generic name Smyrnium is derived from the Greek word for myrrh and the epithet olusatrum was the Roman name of a plant, from the Latin, olus = herb, and ater = black. The English name, alexanders, is a corruption of the Latin (olus ater ⇒ alisander) and does not have anything to do with Alexander the Great (nor does it warrant the use of ...
Seeds from these plants are noted for their oil content, but little information is available on methods of extracting the oil. In most cases, the plants are grown as food, with dietary use of the oils as a byproduct of using the seeds as food. [45] Bitter gourd oil, from the seeds of Momordica charantia. High in α-Eleostearic acid. Of current ...
In bloom, the plant grows to about 1 meter (3 ft) in height and has small, pink, bell-shaped flowers. It is found at an altitude of about 3,000 to 5,000 m (9,800 to 16,400 ft). Its rhizomes can be crushed and distilled into an intensely aromatic, amber-colored essential oil with a thick consistency.
The flower is a vital ingredient in Kewra and is used in special-occasion dishes in South Asia, particularly those associated with Muslim communities. [2] Kewra flowers have a sweet, perfumed odour with a pleasant quality similar to rose flowers, but kewra is more fruity. The aqueous distillate (kewra water, pandanus flower water) is quite diluted.
Patchouli (also spelled patchouly or pachouli) (/ p ə ˈ tʃ uː l i /; Pogostemon cablin) is a species of flowering plant in the family Lamiaceae, commonly called the mint or deadnettle family. The plant grows as a bushy perennial herb , with erect stems reaching up to 75 centimetres (30 in) in height and bearing small, pale, pink-white flowers.
The water which condenses along with the oil is drained off and redistilled, cohobation, in order to obtain the water-soluble fractions of the rose oil such as phenethyl alcohol which are a vital component of the aroma and which make up the large bulk, 80%, of the oil. The two oils are combined and make the final rose attar.