期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 76, 期 2, 页码 158-170出版社
ELSEVIER
DOI: 10.1016/j.seppur.2010.10.002
关键词
Membrane; Nanofiltration; Sugar reduction; Musts; Low alcohol-content wines
资金
- Junta de Castilla y Leon [BU-03-C3]
- Grupos de Excelencia-GR18
- Ministerio de Educacion y Ciencia [CTQ2009-07666]
Our aim here is to study the sugar reduction in musts to obtain wines with a slight alcohol reduction by nanofiltration. Specifically, sugar reduction is achieved by two successive nanofiltration steps. To test the method, we have worked with two types of musts: a white must from Verdejo grapes and a red one from Tinta de Toro grapes. The musts obtained from the nanofiltration treatment have been mixed with untreated must or with the retentate of the first nanofiltration stage in a proportion adequate to reduce the alcohol content of the resulting wines by 2 degrees. To verify the effectiveness of the process, each of these musts has been fermented along with an untreated control sample of the same must. The alcohol reduction in the wines has been satisfactory. However, a slight loss in the color and aroma of some compounds has been detected. (C) 2010 Elsevier B.V. All rights reserved.
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