Kinetika [alfa]-aminokislinskega dušika in prolina med fermentacijo = Free amino nitrogen (FAN) and proline kinetics during alcoholic fermentation
Košmerl, Tatjana ; Fatur, Alenka ; Wondra, Mojmir
Med fermentacijo smo v moǴtu in pridelanem vinu spektrofotometriřno dolořili koncentracijo aminokisline prolin in koncentracijo prostega aminokislinskega duǴika (FAN). Fermentacija je bila vodena y ...dvema rayliřnima sevoma kvasovk vrste Saccharomzces cerevisiae pri temperaturah fermentacije 17 in 25 oC. Potek fermentacije smo spremljali y dolořanjem nastalega ogljikovega dioksida [g/200ml], koncentracije alkohola [vol.%] in sladkorja [g/l]. oncentracija prolina je bila med fermentacijo relativno konstantna, med 210 in260 mg/l, koncentracija FAN [mg N/l] pa se je med fermentacijo ymanjǴevala. V nekaj vyorcih moǴta in vina smo spektrofotometriřno dolořili koncentracijo aminokisline arginin [mg/l]. Ugotovili smo, da opisana metoda ya spektrofotometriřno dolořanje arginina ni primerna. eyultate smo primerjali y literaturnimi podatki, opisali pomen raymerja prolin:arginin ya medsebojno primerjavo rayliřnih vinskih sort in pomen aminokislin ya nemoten potek fermentacije.
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