extract

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extract

1. a preparation containing the active principle or concentrated essence of a material
2. Pharmacol a solution of plant or animal tissue containing the active principle

Extract

 

a concentrated medicinal substance obtained from raw materials that contain certain active ingredients, such as glycosides, alkaloids, and vitamins; a type of galenical. Depending on the extracting agent used, extracts may be categorized as, for example, aqueous, alcoholic, or ethereal. Depending on the degree of thickening after evaporation, they may be classified as liquid, semiliquid (no more than 25 percent moisture), or dry (up to 5 percent moisture).

extract

[′ek‚strakt (noun) or ik′strakt (verb)]
(chemistry)
Material separated from liquid or solid mixture by a solvent.
(computer science)
To form a new computer word by extracting and putting together selected segments of given words.
To remove from a computer register or memory all items that meet a specified condition.
(metallurgy)
To separate a metal or a mineral from an ore by various chemical or mechanical methods.
(pharmacology)
A pharmaceutical preparation obtained by dissolving the active constituents of a drug with a suitable menstruum, evaporating the solvent, and adjusting to prescribed standards.
A preparation, usually in a concentrated form, obtained by treating plant or animal tissue with a solvent to remove desired odiferous, flavorful, or nutritive components of the tissue.

extract

To decompress. To restore the original files from a compressed archive (ZIP file, RAR file, etc.). See archive, data compression and archive formats.
References in periodicals archive ?
Antibacterial assay: Antibacterial activity of the crude plant extracts was studied by the well-known agar-well diffusion method (Tagg and Dajani, 1976; Jack et al.
Significant differences were observed among the various extracts applied compared to the control treatments.
The scientists analyzed the extracts for: total phenolic content (gallic acid equivalent (GAE)); monomeric anthocyanin content (malvidin-3-glucoside equivalent (MGE)); flavan-3-ol content (catechin equivalent (CE)); as well as for their antioxidant capacity (vitamin C equivalent antioxidant capacity (VCEAC)); HPLC profile; and yield.
Preference for sugar-free label products: Non-diastatic malt extracts naturally convert to sugar, reducing the need for addition of sugar.
Two milliliters of the aqueous, hexane and ethyl acetate extracts were dissolved individually in 2M hydrochloric acid and filtered.
Plant extracts were analyzed qualitatively for different phytochemicals following the procedure accepted by Ayoola et al.
Ahmed [24] conducted field experiment to determine the effect of six plant extracts (sweetsop, chilli pepper, garlic, ginger, Neem and Tobacco) against the insect pests of cowpea.
Misra and Dixit (1976) (8) reported that the extracts of garlic completely checked the growth of Pestalotia and Phomopsis.
Four groups of mice were administered four concentrations of the extract 50, 100, 200, 400 (mg/mL) of the extracts, respectively by oral dosage for four consecutive days ad libitum (D0-D3).
They demonstrated that root extracts of the medicinal plant Pelargonium sidoides (PS) contain compounds that attack HIV-1 particles and prevent virus replication.
The ginkgo extract used in this study is different from the high-quality ginkgo extracts used in published clinical trials showing safety and various beneficial activities of ginkgo," said Mark Blumenthal, founder and executive director of ABC.
Thus, manufacturers can even use the extract in light coloured products such as poultry, cooked ham and fish.