Gamble Gary R..
2001. The heat induced degradation of melezitose and trehalulose.
In : Amélioration de la commercialisation du coton produit dans les zones affectées par le collage : actes du séminaire, Lille, France, 4-7 juillet 2001. Gourlot Jean-Paul (ed.), Frydrych Richard (ed.). CFC, CIRAD-CA-COTON, IFTH, SCC, ARC
Résumé : A cotton sample heavily contaminated by whitefly honeydew is subjected to heating conditions commonly found at the gin, and subsequently analyzed for melezitose and trehalulose content as a function of heating time. As a result of thermochemical processes, the concentrations on the surface of the cotton are observed to decrease exponentially. Reaction mechanisms are elucidated by heat treatment of pure melezitose and trehalulose with subsequent analysis of the resultant reaction products. The rate of thermochemical degradation in the case of trehalulose is of sufficient magnitude that its concentration on the cotton surface may be substantially decreased under controlled conditions of heat and time. The rate of degradation of melezitose is nearly an order of magnitude smaller, and its concentration on the cotton surface is not substantially affected under similar conditions. Rates of thermochemical degradation are accelerated by the addition of an organic acid catalyst. Results indicate that it may be possible to influence honeydew levels at the gin through optimization of reaction conditions.
Classification Agris : Q60 - Traitement des produits agricoles non alimentaires
Auteurs et affiliations
- Gamble Gary R., USDA (USA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/489460/)
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