RT Journal Article
SR Electronic
T1 Using Response Surface Methodology to Model the Clarifying Process of Muscat blanc Must for the Production of a Sweet Sparkling Wine
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 42
OP 49
DO 10.5344/ajev.2018.18043
VO 70
IS 1
A1 Donato Colangelo
A1 Fabrizio Torchio
A1 Luca Rolle
A1 Vincenzo Gerbi
A1 Dante Marco De Faveri
A1 Milena Lambri
YR 2019
UL http://www.ajevonline.org/content/70/1/42.abstract
AB This study optimized clarifying Muscat blanc must with either Ca- or Na- bentonite and related mixes in a dose range of 10÷100 g/hL through a central composite design. Response surface methodology (RSM) estimated the combined effect of the bentonite type and dose on free (i.e., aglycons) and glycosylated aroma compounds. Heat stability, turbidity, and color were further analyzed. Results indicate that Na-prevalent bentonite mixes significantly reduced the must haziness, while mixes with 50% Ca-bentonite or higher led to negligible decreases. The surface plots from RSM predicted that aglycons of aroma compounds were removed by Na-bentonite at lower doses and by Ca-bentonite regardless of the dose. Further, the model estimated the removal of glycosylated aroma compounds, especially by Ca-prevalent bentonite at 50 g/hL. Despite the study’s experimental limitations, these outcomes will help the enological sector improve aromatic sparkling wine production.