Abstract: A nutritional beverage was developed by fermenting a mixture of blueberry juice and milk with mixed cultures of domesticated lactic acid bacteria. Orthogonal array design was used to determine optimal process parameters. The optimal fermentation substrate composition was composed of 60% milk, 14% blueberry juice and 6.5% sucrose. The optimal fermentation parameters were determined as 3.2% of inoculum size, 4.4 h of fermentation time and 42 ℃ of fermentation temperature.

Key words: blueberry juice；milk；health care；beverage

摘要： 以蓝莓汁、牛奶为原料,将其按一定比例混合,接种经驯化的乳酸混合菌进行发酵,由正交试验确定最佳工艺参数。结果表明：最佳原料配比为：牛奶60%、蓝莓汁添加量14%、蔗糖量6.5%;最佳发酵工艺参数为：接种量3.2%、发酵时间4.4h、温度42℃。

关键词: 蓝莓汁;牛奶;保健;饮料