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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]
Farlex Partner Medical Dictionary © Farlex 2012

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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

extract

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

verb To obtain a thing—often concentrated or distilled—from a source.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
General bioassay: Each fraction was tested at the concentration it would have if the crude extract had been dissolved at 10% w/v (weight/volume), according to the yield from the fractioning process, such concentration was the highest one at which phagodeterrence on H.
vaporariorum was more susceptible to the semi-purified saponin extract than the crude extract when concentrations oscillated between 100 and 400 ppm; this might have been due to the procedures used for extracting the saponins (partition separation).
of animals; @ Adult worm recovery from control (for crude extract) = 23.7[+ or -]10.2; @@ 11.5[+ or -]1.8; # Adult worm recovery from control kept (for F025) = 18.0[+ or -]6.4; ## 13.2[+ or -]7.9; * P < 0.05; ** P < 0.001 (values are mean [+ or -] SD)
The fibrinolytic activity was evaluated by incubating 20 [micro]g of human fibrin (Sigma Aldrich) with 5 [micro]g of crude extract for 15, 30 and 45 min., 1, 2, 4, 6 and 8 hours at 37[degrees]C.
The synergistic activity of phytochemicals like phytol and mosloflavone present in the crude extract could be responsible for pyocyanin inhibition (27).
Effect of Caralluma edulis crude extract (Ce.Cr) and diclofenac sodium on xylene-induced ear edema in mice.
Test for flavonoids: To 0.5 g portion of crude extract, 10 mL of ethyl acetate was added and heated for 3 min using steam bath.
Here, we report comparison of antidepressant activities of the crude extract of hibiscus with different doses of HSLNs using both FST and TST models.
Experiments using black pepper extract suggest that the anti-secretory, anti-motility and anti-diarrheal activities possessed by crude extract might be due to the presence of carbohydrates and alkaloids.
serpens Wall crude extract and the subsequent fractions, n-hexane, chloroform, ethyl acetate and aqueous at different doses 1000 and 2000 mg/kg, i.p were tested for acute toxicity.
The presence of active compounds among the three Trichoderma were also tested and it showed at 500 [micro]l/ml crude extract of T.