醋酸高产菌株的筛选及高酸度苹果醋的酿造
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TS264.2

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Study on the Screening of High Acetic Acid-Yielding Strain and Brewing of High Acidity Apple Vinegar
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    摘要:

    国内外对适合酿造高酸度果醋(总酸质量浓度>100 g/L)的菌株选育和工艺开发等研究较少,为生产高酸度苹果醋,提高原料利用率,作者筛选得到一株高产醋酸的巴氏醋杆菌CYD159,并采取流加发酵的方法,探究了乙醇体积分数和分割取醋对发酵的影响。结果表明,当初始乙醇体积分数为3%,并控制流加速率,使发酵过程中乙醇体积分数不超过3%,分别在36、66、85 h分割3次时,可得到总酸(以乙酸计)120 g/L的高酸度苹果醋,是单批发酵总酸的2倍。

    Abstract:

    There are few studies on strain selection and process development for brewing high acidity apple cider vinegar(total acid concentration> 100 g/L) at home and abroad . In order to improve the raw material utilization and quality of apple vinegar,a high acetic acid-yielding strain was isolated from the fermented vinegar and identified as Acetobacter pasteurianus,namely CYD159. In the feed batch fermentation,optimal parameters were obtained as follows:the initial ethanol concentration 3%(V/V),adjusted the flow acceleration rate to keep alcohol less than 3% and carried out segmentation at 36 h、66 h、85 h,respectively. Under these conditions,total acidity of apple vinegar can be up to 120 g/L,was twice the total acid concentration of single batch.

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李欢,毛健,刘双平,周志磊.醋酸高产菌株的筛选及高酸度苹果醋的酿造[J].食品与生物技术学报,2019,38(5):7-14.

LI Huan, MAO Jian, LIU Shuangping, ZHOU Zhilei. Study on the Screening of High Acetic Acid-Yielding Strain and Brewing of High Acidity Apple Vinegar[J]. Journal of Food Science and Biotechnology,2019,38(5):7-14.

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  • 在线发布日期: 2019-07-26
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