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Bentonite fining during fermentation reduces the dosage required and exhibits significant side-effects on phenols, free and bound aromas, and sensory quality of white wine (CROSBI ID 260549)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Horvat, Ivana ; Radeka, Sanja ; Plavša, Tomislav ; Lukić, Igor Bentonite fining during fermentation reduces the dosage required and exhibits significant side-effects on phenols, free and bound aromas, and sensory quality of white wine // Food chemistry, 285 (2019), 305-315. doi: 10.1016/j.foodchem.2019.01.172

Podaci o odgovornosti

Horvat, Ivana ; Radeka, Sanja ; Plavša, Tomislav ; Lukić, Igor

engleski

Bentonite fining during fermentation reduces the dosage required and exhibits significant side-effects on phenols, free and bound aromas, and sensory quality of white wine

To test the effects of bentonite addition at various stages of fermentation, five Malvazija istarska white grape must vinification treatments were performed with 100 g/hL of bentonite added in clear juice, at the beginning, in the middle, and at the end of fermentation, while control was fermented without bentonite. Phenols and free and bound volatile aromas were determined by HPLC-DAD and SPE-GC-MS. Wines were evaluated sensorially. Fining during fermentation reduced the total bentonite dose required, and was most effective near the end of fermentation with the reduction of 16% and 21%, depending on the protein stability test. All treated wines preserved more hydroxycinnamoyltartaric acids with respect to control. The side-effect of these treatments on varietal aromas was moderate, but enhanced the preservation of key fermentation volatiles in relation to control, and exhibited positive sensory effects. It was concluded that bentonite added during fermentation may positively affect wine quantity and quality.

white wine ; protein stability ; bentonite ; phenols ; aroma ; malvazija istarska

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Podaci o izdanju

285

2019.

305-315

objavljeno

0308-8146

1873-7072

10.1016/j.foodchem.2019.01.172

Povezanost rada

Poljoprivreda (agronomija), Prehrambena tehnologija

Poveznice
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