preservation

preservation
1) the process of storing organisms in a museum indefinitely by some process that halts decay. Fishes are preserved by immersion in formalin (an aqueous solution of formaldehyde) at concentrations depending on the size (thickness) of the specimen (usually in the 5-10% range). Large specimens may require injection to ensure that the formalin reaches internal tissues. Formalin fixes the proteins, stops enzymatic decay and kills bacteria. Specimens are later transferred to an ethanol solution (70-80%) which is non-carcinogenic and easier to work with
2) use of additives to extend shelf life of fish products. They serve to inhibit bacterial growth and chemical changes in the product. Preservatives are not usually permitted for chilled or frozen raw fish but are used in marinades and in dried fish
3) the maintenance of individual organisms, populations or species by planned management and breeding programmes

Dictionary of ichthyology. 2009.

Игры ⚽ Поможем сделать НИР
Synonyms:
, , / , , / ,


Look at other dictionaries:

  • préservation — [ prezɛrvasjɔ̃ ] n. f. • 1314; de préserver ♦ Action, moyen de préserver, de se garantir. ⇒ protection, 1. sauvegarde. Préservation des droits, des intérêts, du patrimoine d une personne. « Pendant les grandes pestes du Midi, les médecins… …   Encyclopédie Universelle

  • Preservation — may mean:* Cultural Heritage Preservation, which includes: **Preservation (library and archival science), maintenance of artifacts and the intellectual record **Art conservation, the retention of cultural heritage for the future. **Digital… …   Wikipedia

  • Preservation — Pres er*va tion, n. [Cf. F. pr[ e]servation.] The act or process of preserving, or keeping safe; the state of being preserved, or kept from injury, destruction, or decay; security; safety; as, preservation of life, fruit, game, etc.; a picture in …   The Collaborative International Dictionary of English

  • Preservation — Preservation, Insel, zur Fourneauxgruppe gehörig …   Pierer's Universal-Lexikon

  • preservation — [prez΄ər vā′shən] n. 〚ME < MFr < ML praeservatio〛 a preserving or being preserved * * * See preservability. * * * …   Universalium

  • preservation — I noun care, cherishing, conservatio, conservation, curing, custody, defense, eternization, freedom from danger, guardianship, guarding, immortalization, maintenance, nourishment, nurture, perpetuation, protection, protective custody,… …   Law dictionary

  • preservation — (n.) early 15c., preservacioun, from M.L. preservationem (nom. preservatio), noun of action from pp. stem of preservare (see PRESERVE (Cf. preserve) (v.)) …   Etymology dictionary

  • preservation — [n] maintenance, protection canning, care, conservancy, conservation, curing, defense, evaporation, freezing, guard, guardianship, keeping, perpetuation, pickling, preserval, refrigeration, safeguard, safeguarding, safekeeping, safety, salvation …   New thesaurus

  • preservation — ► NOUN 1) the action of preserving. 2) the state of being preserved, especially to a specified degree …   English terms dictionary

  • preservation — [prez΄ər vā′shən] n. [ME < MFr < ML praeservatio] a preserving or being preserved …   English World dictionary

  • Preservation — (Roget s Thesaurus) < N PARAG:Preservation >N GRP: N 1 Sgm: N 1 preservation preservation Sgm: N 1 safe keeping safe keeping Sgm: N 1 conservation conservation &c.(storage) 636 Sgm: N 1 maintenance maintenance support susteritation… …   English dictionary for students

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”