Formation of Flavanol-aldehyde Adducts in Barrel-aged White Wine - Possible Contribution of These Products to Colour
| العنوان: | Formation of Flavanol-aldehyde Adducts in Barrel-aged White Wine - Possible Contribution of These Products to Colour |
|---|---|
| المؤلفون: | Christelle Absalon, Nicolas Vivas, F. Jamet, N. Vivas de Gaulejac, M.F. Bourden Nonier, Christiane Vitry, Eric Fouquet, V. Lizama Abad |
| المصدر: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| بيانات النشر: | South African Society for Enology and Viticulture, 2008. |
| سنة النشر: | 2008 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Wine, Aldehydes, TECNOLOGIA DE ALIMENTOS, Vanillin, Catechin, 04 agricultural and veterinary sciences, HPLC-DAD, 040401 food science, Aldehyde, Adduct, Colour, chemistry.chemical_compound, 0404 agricultural biotechnology, LC-ES/MS, Nucleophile, chemistry, Polymerization, White Wine, Organic chemistry |
| الوصف: | [EN] This paper describes the formation and diversity of new compounds resulting from the polymerisation of furanic and phenolic flavanol-aldehydes with HPLC¿DAD and LC¿ES/MS analysis. Polymerisation, resulting from nucleophilic reactions, formed dimers, trimers, soluble and insoluble polymers. Reactions in hydroalcoholic solution with pure aldehydes (phenolic and furanic) and flavanols (catechin) were studied. The study was repeated with different aldehydes in white wine. This research focused particularly on the colour properties of the released products and their potential impact on the colour of white wine. Some products were purified and isolated; these were mainly catechinfurfuraldehyde, catechin-methyl-5-furfuraldehyde, catechin-hydroxymethyl-furfuraldehyde, catechin-vanillin, and catechin-syringaldehyde dimers. The most powerful coloured products resulted from furanic aldehydes. Over the course of the experiment, the reaction produced dimers, trimers and oligomers. After 50 to 60 days, the colour of the solution was mainly due to soluble polymeric forms. In addition, the role of SO2 , generally used during vinification and ageing, was studied. The influence of SO2 on the kinetics of the reaction was limited. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b45ce28417f826e8c7446dcbc7dac8c https://hdl.handle.net/10251/105310 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8b45ce28417f826e8c7446dcbc7dac8c |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |