期刊
FOOD CHEMISTRY
卷 268, 期 -, 页码 431-440出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.06.120
关键词
Ultrasound; (+)-Catechin; Formation; Xanthylium cation; Model wine
资金
- National Natural Science Foundation of China [31101324]
- Natural Science Foundation of Shaanxi Province, China [2015JM3097]
- Technology Transfer Promotion Project of Xi'an, Shaanxi Province, China [2017071CG/RC034(SXSF003)]
- Key Research Development Program of Shaanxi Province, China [2017NY-167, 2018ZDXM-NY-086]
- Fundamental Research Funds for the Central Universities of China [GK201602005, GK201802012]
As a potential novel technique in the wine-making industry, ultrasound has received considerable attention. In this paper, a model wine system was constructed to investigate the effect of ultrasonic irradiation on the formation of xanthylium cation pigment derived from the ( + )-catechin and the glyoxylic acid, an oxidation product of tartaric acid, so as to explore the changing mechanism of the wine color mediated by ultrasound. The results indicate that the long-term ultrasonic treatment can enhance the formation of the xanthylium cation pigment in the model wine, which is attributed to free radicals triggered by ultrasound, meanwhile, iron ions and oxygen can influence the ultrasonic effect. All these results suggest that ultrasound is promising to be employed in regulating the formation of the yellow pigment during wine aging thus modifying the wine organoleptic characteristic.
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