期刊
ULTRASONICS SONOCHEMISTRY
卷 100, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2023.106636
关键词
Ultrasound; Low temperature; Anthocyanins; Phenols; Volatile; Fermentation
Ultrasound combined with low temperature treatment can significantly improve the quality of Merlot red wine by increasing the anthocyanin and phenol content, improving color, and enhancing antioxidant capacity.
Ultrasound combined with low temperature treatment is a new food processing technology. In this study, low temperature, three ultrasound power levels, and their combinations were adopted in the must before fermentation to study their effects on Merlot red wine. The results showed that ultrasound combined with low temperature pretreatment increased the total and monomer contents of anthocyanins and phenols, affected the color of the wine, and significantly increased its antioxidant capacity. In particular, 240 W of ultrasound combined with low temperature pretreatment reduced the bad odors (caprylic acid, benzaldehyde, and 1-ethanol content) and improved the flower and fruit aroma (1-octanol and phenethyl acetate), as well as the aftertaste, thus improving the quality of the wine. Ultrasound combined with low temperature pretreatment positively affected the quality of Merlot red wine.
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