期刊
FOOD CHEMISTRY
卷 104, 期 1, 页码 148-155出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2006.11.014
关键词
sparkling wine; foam; proteins; bentonite; mosalux; FPLC
This paper studies how the use of bentonite to facilitate the riddling process affects the foam properties and the protein fraction of sparkling wines (Cava). In all monovarietal sparkling wines (Macabeu, Xarel.lo, Parellada, Chardonnay and Pinot Noir), the addition of bentonite produced a statistically significant diminution of the Mosalux parameters (HM and HS). This depreciation of the foam quality may be attributed to the direct interaction of bentonite with wine proteins. Concretely the use of bentonite caused a diminution of more of 80% of total the soluble protein. Gel filtration by FPLC showed that bentonite particularly affected the 60 kDa and 20-30 kDa protein fraction. The high molecular fraction, on the other hand, was not affected. (c) 2006 Elsevier Ltd. All rights reserved.
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