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超高压处理诱变选育全小麦啤酒酵母菌株及其应用研究 总被引:1,自引:1,他引:1
采用150MPa超高压处理啤酒酵母,经双乙酰平板筛选获得一株菌Gy3,其凝聚性很强(本斯值1.3mL),适合于在小麦汁中发酵啤酒,其发酵度为66%~68%,遗传稳定性良好。生产试验结果表明:"SP-03"啤酒酵母菌株在全小麦芽啤酒的酿造中适用性较强,用其酿制的啤酒口感纯正、淡爽、柔和,整体口感风格为目前国内流行的淡爽柔和型,能够较好地适应当前消费者的口感需求。因而"SP-03"是一支生理及生产性能优良,基本上适用于全小麦芽啤酒生产的优良啤酒酵母菌株。 相似文献
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采用10 keV低能N+注入啤酒酵母,经筛选获得菌株Lz37,再用150 MPa超高压处理菌株Lz37,经双乙酰平板筛选获得菌株Gy3,其凝聚性很强,遗传稳定性良好,适合于在小麦汁中发酵啤酒.将Gy3酵母定为全小麦啤酒生产应用酵母,命名为商啤3号(SP-03).SP-03啤酒酵母菌株的各项生理及生产性能都较优良,特别是... 相似文献
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啤酒酵母直接关系到啤酒的质量。选用不同的酵母菌株和相应的发酵工艺,能生产出不同类型的啤酒。近几年来,随着技术交流的扩大,立式发酵罐的应用,从国外引进了不少啤酒酵母菌株。我厂从不同来源的啤酒酵母菌体中,分离选育了几株。我们对这几株啤酒酵母的形态特征和生理特性进行了鉴定,对生产应用性能做了对比研究,为菌株的选用和进一步研究提供参考。 相似文献
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啤酒发酵过程中存在葡萄糖效应,使葡萄糖不能很快被利用。如果可以找出抗葡萄糖效应的菌株,使麦芽糖、麦芽三糖与葡萄糖同时被利用,则可大大缩短发酵时间,提高发酵效率。双乙酰是啤酒酵母胞内合成分泌到胞外的乙酰乳酸缓慢氧化脱羧形成的,过量的双乙酰会影响啤酒口感。筛选低产双乙酰啤酒酵母菌株将赋予啤酒较好的口感,使啤酒质量更优。本实验利用双乙酰驯化和抗葡萄糖效应的原理制备了一个复合筛子,其筛选出同时具备发酵速度快和低产双乙酰的高效发酵啤酒酵母菌株6株,既提高了啤酒发酵速度,又降低了啤酒双乙酰含量,在缩短啤酒发酵周期的同时提升啤酒发酵质量。 相似文献
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高发酵度啤酒酵母生产试验研究 总被引:1,自引:0,他引:1
高发酵度啤酒酵母生产试验研究王佐民,索晓光,胡晓东(黑龙江省轻工业研究所)(黑龙江省食品工业公司)啤酒发酵度的高低,啤酒酵母是关键。为了制作高发酵度啤酒,我们采用生物技术,选育分离出1株高发酵度啤酒酵母菌株SL-8。该菌株具有双乙酰还原能力强、发酵度... 相似文献
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2009年,安琪根据不同啤酒生产企业对啤酒口感稳定和控制的需求,特别推出了“啤酒酵母定制”业务,受到国内外啤酒制造企业的普遍欢迎。 相似文献
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报道了啤酒酵母原生质体融合株GR5的中试结果。融合株GR5的凝絮性较强 (本斯值为 2 .7) ,以12°Bx麦芽汁为培养基 ,用 5 0 0L发酵罐在 12℃下发酵 ,发酵至第 8d菌株GR5的发酵度为 6 9.2 % ,发酵液中的双乙酰含量为 0 .0 4 98mg/L、乙醛含量为 6 .34mg/L ,总高级醇含量为 74 .4mg/L ,该菌株生产的啤酒 ,口感柔和、协调 ,略带酯香味。融合株GR5的遗传性稳定 ,是一株具有工业应用前景的啤酒酿造酵母菌株 相似文献
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Ilaria Mascia Costantino Fadda Pavel Dostálek Jana Olšovská Alessandra Del Caro 《Journal of the Institute of Brewing》2014,120(4):495-499
In recent years, there has been increasing interest in the production of beers brewed using raw materials of local origin. Many micro‐breweries have been established in Italy, particularly in Sardinia, where some have started to use Sardinian wheat to produce a beer that has a regional connection. The most widespread wheat cultivar used in Italy has been Senatore Cappelli, which is still grown in Sardinia and in some other regions. Bread produced with this type of wheat is characterized by a high protein content and good sensory properties. Owing to its origin, this cultivar is being considered for use in beer production. In this work, a Sardinian durum wheat beer was compared with two other wheat beers brewed in Europe (Germany and the Czech Republic). Standard beer chemical analyses, along with volatile and sensorial profiles, were used to characterize the Sardinian craft durum wheat beer. Copyright © 2014 The Institute of Brewing & Distilling 相似文献
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以55%大麦麦芽、30%小麦麦芽和15%焦香麦芽为原料进行糖化、过滤和煮沸,随后采用二次添加工艺分别添加70%苦型颗粒90型和30%香型颗粒45型酒花,麦汁经过沉淀和冷却,选用德国上面发酵酵母NO.354作为主发酵的生产菌株、下面发酵酵母NO.308作为后发酵的生产菌株进行发酵,过滤后添加岩藻多糖,得到的岩藻多糖啤酒口味更加纯正、香味独特、泡沫洁白细腻、杀口力强. 相似文献
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H. Schneiderbanger J. Koob S. Poltinger F. Jacob M. Hutzler 《Journal of the Institute of Brewing》2016,122(3):403-411
The synthesis of aroma compounds represents one of the most important parameters in beer production. Although it has been a historical topic of research, exactly how aroma components are formed has yet to be fully explained. Moreover, all of the research that has been published on yeast strains is focused on lagers and ales. Wheat beer yeast strains have not been the focus of aroma and flavour research. In this study, five different wheat beer yeasts were analysed to determine their capacity for producing acetate esters. In this study, the most commonly used wheat beer yeast strains for the production of German‐style wheat beer were analysed. This involved measuring the level of expression of the alcohol acetyl transferase genes ATF1, ATF2 and IAH1 over a period of 4 days (during primary fermentation) and plotting the data to observe the development of expression of the genes over time. Results confirmed their capacity to form acetate esters and showed a distinct correlation with increasing expression of the gene ATF1. However, the findings also indicated that gene expression in different yeast strains can vary considerably during fermentation. Copyright © 2016 The Institute of Brewing & Distilling 相似文献
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经诱变、筛选处理的“珠研”2~#菌株经小试、中试证明其啤酒发酵性能比原引进的菌株有较大的优越性。为验证此菌株对麦汁及扩大生产的适应性,我们对此菌株进行生产性扩大试验。实践证明,“珠研”2~#菌株对麦汁及扩大生产适应性较强。该菌株具有发酵温度高、降糖快、双乙酰还原能力强、酵母凝集性好、发酵周期短、生产的啤酒质量优越等优点。取得与小试、中试基本一致的结果。我们认为“珠研”2~#菌株啤酒快速发酵新工艺,可望有良好的推广应用前景。 相似文献
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