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窖泥退化的主要原因有:窖泥配料不当,碳氮比失调;窖池防渗效果差,营养流失;工艺控制不合理,窖池管理不善等。规范工艺操作,强化窖池后期管理,用己酸菌液、窖泥营养液进行窖池养护及按期进行窖池窖泥大培养,可有效防止窖泥退化和提高复壮效果。复壮后的窖池发酵酒醅出酒率提高8.1%,己酸乙酯提高158mg/100mL,总酯提高275mg/100mL。 相似文献
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浓香型白酒的质量直接取决于发酵窖池和窖泥,窖泥老化衰退会影响酒的质量和发酵糟醅的出酒率。引起窖泥老化衰退的原因有:窖泥中微生物生长需要的营养成分枯竭;老窖泥板结;气候干燥、窖池保温差;工艺操作控制不好;窖池护窖养窖不当;建窖时泥土的选用和窖形结构尺寸不当等。预防措施有:建窖选用优质泥土;窖泥制作选择好的茵种;严格工艺操作;严格养窖护窖和跟踪检测;做好窖池清洁卫生工作;做好安全度夏措施等。(孙悟) 相似文献
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窖泥活性降低原因分析与提高窖泥活性的研究 总被引:1,自引:0,他引:1
影响窖泥退化、板结的原因有:窖泥配方、酸度、水分、乳酸钙、乳酸铁等白色物质的形成与析出、营养成分的减少、发酵条件的变化、窖泥周围环境等。提高窖泥活性的措施有:用窖泥养护波喷洒窖壁与窖底,剥减退化窖池表层,在酿酒生产过程中实施以窖养醅、以醅养窖、养护结合的措施。(孙悟) 相似文献
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发酵周期过长可引起窖泥发干,糟酷的色泽暗、发黄、显糙、不柔熟、骨力差等现象,影响酒的产质。调整措施有:①退出底酷,用丢糟作配糟重新“立糟”;②适当增加用曲量;③适当增加稻壳用量、量水量和投新粮;④缩短发酵期;⑤用人工优质窖泥更换老化窖泥。 相似文献
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在浓香型窖壁开挖养窖沟,输入混合液养窖,解决了窖池老化的老大难问题。作者从4个方面总结了9年来的生产实践成果:①窖池上部老化的现象;③窖泥老化的正大原因;③养窖沟的实施方案;④3种混合养窖液的组成。(陆月雪) 相似文献
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人工窖泥的培养操作法 总被引:6,自引:4,他引:2
优质的窖泥是生产高质量浓香型曲酒的基本条件之一。培养优质人工窖泥成功的关键主要取决于“种子”是否优良、培养方法是否恰当、配方是否合理3方面。利用对原材料的分析结果来指导窖泥原料的配比,使其各项指标合理;酸度、氨态氮、腐殖质、有效磷等的含量适合,采用适宜的培养温度和密封条件培养并加强管理。(丹妮) 相似文献
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Qingchun Luo Chaolan Liu Zhengyun Wu Haiying Wang Wenfang Li Kaizheng Zhang Dan Huang Jing Zhang Wenxue Zhang 《Journal of the Institute of Brewing》2014,120(3):253-261
Pit mud plays a crucial role in the production of the Luzhou‐flavour liquor. Its quality directly determines liquor quality and yield. The aged pit mud produced good quality liquor but aging pit mud did not. The aim of this work was to investigate the prokaryotic diversity of the aged and aging pit mud from a Luzhou‐flavour liquor distillery using molecular methods. Two bacteria‐specific and two archaea‐specific 16S rRNA gene clone libraries were constructed and analysed using amplified ribosomal DNA restriction analysis. A total of 273 clones were studied, which resulted in 28 operational taxonomic units. Bacteroidetes and Firmicutes predominated in both the aged and aging pit mud, but Synergistetes and Actinobacteria were only detected in the aged pit mud. The family Methanosaeta dominated in the aged pit mud, while the Methanosarcina predominated in the aging pit mud. These results were confirmed using two genus‐specific quantitative real time PCR assays. This research distinguished microbial community structure in the aged and aging pit mud for the first time, and has laid an initial foundation for identifying good quality pit mud and for maintaining the quality of pit mud. Copyright © 2014 The Institute of Brewing & Distilling 相似文献
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己酸菌和窖泥与浓香型白酒关系密切,在一定程度上说,是它们在决定着浓香型白酒的质量及风格。就己酸菌与窖泥、己酸菌与甲烷菌、窖泥与清香、浓香、凤香等白酒之间的关系作了详细阐述,分析了浓香型白酒生产中窖泥退化的原因及防治措施,并就人工窖泥培养的配方、原料选择、工艺操作及管理等方面作了介绍。 相似文献