1 a solution obtained by steeping or soaking a substance (usually in water) [syn: infusion]
2 a passage selected from a larger work; "he presented excerpts from William James' philosophical writings" [syn: excerpt, selection]
1 draw or pull out, usually with some force or effort; also used in an abstract sense; "pull weeds"; "extract a bad tooth"; "take out a splinter"; "extract information from the telegram" [syn: pull out, pull, pull up, take out, draw out]
2 get despite difficulties or obstacles; "I extracted a promise from the Dean for two ne positions"
3 deduce (a principle) or construe (a meaning); "We drew out some interesting linguistic data from the native informant" [syn: educe, evoke, elicit, draw out]
4 extract by the process of distillation; "distill the essence of this compound" [syn: distill, distil]
5 separate (a metal) from an ore
6 obtain from a substance, as by mechanical action; "Italians express coffee rather than filter it" [syn: press out, express]
8 calculate the root of a number
- (noun): ĕks'trăkt, /ˈɛkstrækt/, /"Ekstr
An extract consists of a certain percentage of true essence, or its chemical imitation, in an alcoholic solution.
The aromatic principles of many spices, nuts, herbs, fruits, etc., and some flowers, are thus marketed, among the best known of true extracts being almond, cinnamon, cloves, ginger, lemon, nutmeg, orange, peppermint, pistachio, rose, spearmint, vanilla, violet, and wintergreen.
Extraction techniquesThe majority of natural essences are obtained by extracting the essential oil from the blossoms, fruit, roots, etc., or the whole plants, through four techniques:
- Expression when the oil is very plentiful and easily obtained, as in lemon peel.
- Absorption is generally accomplished by steeping in alcohol, as vanilla beans.
- Maceration is used to create smaller bits of the whole, as in making peppermint extract, etc.
- Distillation is used with maceration, but in many cases, it requires expert chemical knowledge and the erection of costly stills.
The distinctive flavors of nearly all fruits, in the popular acceptance of the word, are very desirable adjuncts to many food preparations, but there are only a few from which it is practicable to obtain a concentrated flavor extract of the necessary strength. Among those which lend themselves readily to the manufacture of "pure" extracts the most important are lemons, oranges and vanilla beans.
Chemical-created essenceA majority of other, concentrated fruit flavors, such as banana, cherry, currant, peach, pineapple, raspberry and strawberry, are produced by combinations of various esters, together with special oils. The desired colors are generally obtained by the use of dyes. Among the esters most generally employed are ethyl acetate and ethyl butyrate. The chief factors in the production of artificial banana and pineapple extract, and also important in the manufacture of strawberry extract, are amyl acetate and amyl butyrate, amyl alcohol being the principal constituent of that part of the alcohol obtained by the distillation of grain and potato starch, which is popularly known in the US as fusel oil and in Europe, generally by the title of potato oil.
Artificial extracts do not, as a rule, possess the delicacy of the fruit flavor, but they get sufficiently close to it to be of real service and convenience when true essences are unobtainable.
extract in German: Drogenauszug
extract in Estonian: Tõmmis (leotis)
extract in Japanese: エキス
extract in Russian: Экстракт
extract in Albanian: Ekstrakti
extract in Ukrainian: Екстракт
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