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In order to investigate effects of different ending fermentation technologies on microbial-stability and quality of low alcohol sweet white wine, with Italy Reasling grapes as raw materials, four ending fermentation technologies: single SO2 treatment, combined high voltage electrostatic field (HVEF)/SO2 treatment, combined ultrasound/SO2 treatment, and combined pasteurization/SO2 treatment were compared in yeasts lethality, enological parameters and sensory evaluation of the low-alcohol sweet white wines.The results showed that: the best ending fermentation technology was combined ultrasound (40Hz/20min)/SO2(40mg/L) treatment, which had higher total lethal rate of Saccharomyces cerevisiae, and the wines treated in this way were rich in typical Italy Reasling grape variety flavor and attractive aromas, with a pleasant fruity taste and microbial stability.

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