浓缩发酵乳饮料的研究

The Research on Condensing-Fermented Milk Beverage

本文主要研究对含嗜乳杆菌浓缩发酵乳饮料的生产工艺过程。实验结果表明单菌培养制备生声发酵剂，混菌发酵的工艺是可行的。发酵乳中Ｌ．ａｃｉｄｏｐｈｉｌｔｕｓ的活菌数达１０８ｃｆｕ·ｍＬ（－１）以上．发酵的最佳工艺备件是Ｓ．ｔｈｅｒｍｏｐｈｉｌｕｓ：Ｌ．ａｃｉｄｏｐｈｉｌｕｓ＝１：３，接种量６％．发酵的终点指示是ｐＨ≤４．３．ＯＤ≥５．０，发酵时间４～５６ｈ。

This paper has made studies about the processing technique of Condensing-fermented milkbeverage with L. acidophilus. The results of experiment show that the preparation for bulk starter withsingle-strain culture and fermentation process with mixed-strain Cultures are feasible. The viable cellcounts of L. acidophilus in the fermented milk can be reached the level of 10￣9mL￣ (-1). The optimunconditions are as follows: S. thermophilus: L. acidophilus= 1: 3, inoculum 6%, final paint PH≤4. 3.OD≥5. 0, fermented time 4 to 5 hrs. etc.