séchage
- Domaine
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- agricultureséchage des feuilles de tabac
- Dernière mise à jour
Définition :
Traitement du tabac réalisé après récolte qui se traduit par une perte en eau accompagnée de modifications des caractères physiques et chimiques de la feuille.
Note :
Lorsque cette opération intervient sur du tabac fraîchement récolté, dont la teneur en eau est très élevée, elle est assimilable à un véritable traitement garantissant la conservation du végétal pendant un temps suffisant et faisant appel, suivant les tabacs et les usages locaux, à l'air ambiant (air-curing), au soleil (sun-curing) ou encore à l'air chaud (flue-curing).
Terme privilégié :
- séchage n. m.
Traductions
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anglais
Auteur : Office québécois de la langue française,Note :
The following distinctions are made in the tobacco curing process: 1) natural curing, which, in turn, is subdivided into a) sun-curing, b) air-curing, 2) artificial curing which is subdivided into a) flue-curing, b) fire-curing, 3) forced (lightly controlled) curing for some cigar wrapper tobaccos. Curing forms the first stage in the processing of tobacco leaf into an industrial raw material. The second is fermentation and/or post-maturing. In general, pure dyestuffs are mainly responsible for the leaves to change their colour after the curing of acid tobaccos has been completed: in the case of alkaline tobaccos there are other additional substances which take part in this colour change and which are not dyestuffs in the strict sense of the word but are agents containing coloured chemical substances such as melanoidins, formed from reaction between reducing sugars and amino acids, alternatively substances with brown coloration are responsible which behave similarly to humus acids.
Termes :
- curing
- drying
[curing] If related to tobacco, the word means « drying »: air-curing, fire-curing, flue-curing.