固定化酵母发酵樱桃番茄果酒工艺的研究

以樱桃番茄为原料,采用单因素试验设计和正交试验设计进行分析。通过对活性干酵母和固定化酵母发酵制备樱桃番茄果酒的试验进行比较,并对固定化酵母细胞连续发酵进行了对比分析,最后对固定化酵母发酵过程中发酵料的起始糖度、主发酵温度、初始pH值和SO2浓度对固定化发酵的影响进行了研究。结果表明,固定化酵母比游离酵母发酵速度快;固定化酵母可以重复利用发酵樱桃番茄果酒。固定化酵母发酵制备樱桃番茄果酒的最佳工艺条件为:初始糖质量分数为20%,pH值5.0,SO2添加量为30 mg/L,在25℃下,发酵7 d。采用明胶—单宁复合澄清剂澄清处理,最后在75℃下杀菌15 min,得到果香浓郁、色泽金黄、澄清透明的优质樱桃番茄果酒。

Cherry-tomato Wine by Immobilized Yeast Fermentation

Using the cherry tomato as materials,through the single-factor experiment and the orthogonal experiment,the analytical study is conducted.Immobilized yeast and free yeast are used respectively in the experimental production of Cherry-tomato wine.Continuous fermentation of immobilized yeast cells carry out a comparative analysis.At last,the initial sugar content,temperature,pH value and SO2 content are studied in immobilized yeast fermentation.The results show that immobilized yeast led to quicker fermentati...