extract

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extract

 [ek´strakt]
a concentrated preparation of a vegetable or animal drug.
allergenic extract an extract of allergenic components from a crude preparation of an allergen, such as weed, grass, or tree pollen, molds, house dust, or animal dander, used for diagnostic skin testing or for immunotherapy for allergy.
cell-free extract the solution obtained by rupturing cells and removing all particulate matter.

ex·tract

(eks-trakt'),
1. A concentrated preparation of a drug obtained by removing the active constituents of the drug with suitable solvents, evaporating all or nearly all of the solvent, and adjusting the residual mass or powder to the prescribed standard.
2. To remove part of a mixture with a solvent.
3. To perform extraction.
[L. ex-traho, pp. -tractus, to draw out]

extract

(ĭk-străkt′)
tr.v. ex·tracted, ex·tracting, ex·tracts
To draw or pull out, often with great force or effort: extract a wisdom tooth; used tweezers to extract the splinter.

ex·tract′a·ble, ex·tract′i·ble adj.
ex·trac′tor n.

extract

noun A concentrate of a drug, cells or a supernatant.

verb To obtain a thing—often concentrated or distilled—from a source.

extract

noun A concentrate of a drug, cells, or a supernatant. See Adrenal extract, Cell-free extract, Fluid extract, Green extract, Plasmid extract verb Psychology Obtain.

ex·tract

1. (ek'strakt) A concentrated preparation of a drug obtained by removing the active constituents with suitable solvents, evaporating all or nearly all of the solvent, and adjusting the residual mass or powder to the prescribed standard.
2. (ek-strakt') To remove part of a mixture with a solvent.
3. To perform extraction.
[L. ex-traho, pp. -tractus, to draw out]

ex·tract

(eks-trakt, ekstrakt)
1. To perform extraction.
2. A concentrated drug preparation obtained by removing active constituents of the drug with suitable solvents, evaporating all or nearly all solvent, and adjusting residual mass or powder to the prescribed standard.
[L. ex-traho, pp. -tractus, to draw out]
References in periodicals archive ?
diversifolia and Byrum coronatum in other to determine the antimicrobial activity of their aqueous and ethanolic extracts against five bacterial and four fungal isolates.
It is interesting that instant coffee uses its own dried coffee bean fiber as the "carrier" for the flavor and fragrance, whereas coffee extracts use water as the "carrier." The point being that the flavor and fragrance in instant coffee is "clinging to" the dry wood fiber whereas the flavor and fragrance in liquid coffee extracts is in solution with the water.
"Neither the remaining tomato nor the extract need to be cleaned of solvent as in the case of ethyl acetate, because carbon dioxide ...
Trolox equivalent antioxidant activity: The [ABTS*.sup.+] scavenging activity of the different extracts from the plant was evaluated using the TEAC/ABTS method.
Ferric reducing antioxidant power assay is beneficial over all other extracts of G.tetrasperma.
organs and to test the extracts obtained with difference methods antimicrobial activity against some human pathogenic microbial strains, to conclude some useful anti-microbial principles in future to cope with the emerging need of antimicrobial drugs against these strains.
The researchers prepared phenolic extracts from Pinot noir grape pomace or seeds.
Preference for sugar-free label products: Non-diastatic malt extracts naturally convert to sugar, reducing the need for addition of sugar.
Although a great progress has been achieved in improving heat tolerance using a variety of inorganic chemicals and plant growth regulators (Wahid et al., 2008; Farooq et al., 2009), the use of natural sources, especially the plant extracts is limited.
Plant extracts were qualitatively analyzed for different phytochemicals by following the protocol adopted by Ayoola et al.
Scientists from the Helmholtz Zentrum Munchen report that these extracts represent a potential new class of anti-HIV-1 agents for the treatment of AIDS.