Gluconic acid, its lactones, and SO2 binding phenomena in musts from botrytized grapes
In: Biological Processes and Their Control. Liener SymposiumJournal of agricultural and food chemistry (Print) 50(22):6408-6412; Jg. 50 (2002) 22, S. 6408-6412
Konferenz
- print, 19 ref
Zugriff:
Intramolecular gluconic acid esterification reactions led to the formation of two lactones, γ- and δ-gluconolactone (glucono-1,4-lactone and glucono-1,5-lactone). The presence of the first has not yet been reported in must or wine. These lactones are in equilibrium with gluconic acid, γ- and δ-gluconolactone representing, respectively, 5.8 and 4.1% of the acid level. Correlations between must SO2binding power, gluconic acid, and consequently its lactones are shown. The SO2 affinity of a mixture containing this acid and γ- and δ-gluconolactone was determined, and gluconic acid appeared to be indirectly responsible for ∼8% of the bindable SO2 in musts from botrytized grapes.
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Gluconic acid, its lactones, and SO2 binding phenomena in musts from botrytized grapes
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Autor/in / Beteiligte Person: | BARBE, Jean-Christophe ; DE REVEL, Gilles ; BERTRAND, Alain |
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Quelle: | Biological Processes and Their Control. Liener SymposiumJournal of agricultural and food chemistry (Print) 50(22):6408-6412; Jg. 50 (2002) 22, S. 6408-6412 |
Veröffentlichung: | Washington, DC: American Chemical Society, 2002 |
Medientyp: | Konferenz |
Umfang: | print, 19 ref |
ISSN: | 0021-8561 (print) |
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