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通过探测窖内糟醅发酵温度,能较为准确地判断出糟醅发酵是否正常;对出现糟醅升温异常的窖池,可采取移位发酵急救措施补救。该技术能显著实现保产、增产,一个车间每年可增产60多吨,增创效益40多万元,效果十分显著。 相似文献
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窖池是生产浓香型大曲白酒的重要前提条件,窖池、窖泥中生长着种类繁多、功能各异、有益于酿酒的微生物茵群落,只有具备优质的窖池、窖泥,才能生产出优质的好酒。只有严格按要求选择建窖环境、材料,窖池形状和大小合理,窖泥培养配方、方法合理,养护好窖池、窖泥,控制好窖泥感官、理化标准,控制好入窖糟醅的入窖发酵工艺,操作规范,就能生产出高产优质酒。 相似文献
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浓香型白酒是我国产销量最大的白酒,传统的泥窖发酵劳动强度大、机械化操作困难,且原酒常常带有窖泥臭味。该研究采用窖泥微生物(己酸菌群)单独培养制备己酸发酵液,再与大曲微生物发酵酒醅(前发酵)混合发酵,实现无窖泥发酵生产浓香型白酒。己酸发酵液的制备采用液态厌氧培养,通过考察发酵产酸情况确定发酵时间为9 d,此时己酸含量达到10 g/L左右,丁酸含量达到2 g/L左右;前发酵为传统的固态发酵,由乙醇体积分数、残淀粉等发酵理化指标确定发酵周期为6~8 d;己酸发酵液与前发酵酒醅混合进行后发酵,己酸发酵液添加量为0. 40 g/kg,总发酵周期为42 d。在此条件下,酒醅四大酯含量较高,比例协调,该研究为无窖泥发酵生产浓香型白酒打下基础。 相似文献
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介绍了在浓香型白酒生产中,采用低温生产高温压窖措施度夏应注意的一些问题,以及度夏酒醅窖池的管理要点,并说明了该措施的良好效果.(弓长) 相似文献
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广大北方地区地下水位低,空气干燥,形成了这一地区提高浓香型的白酒质量的制约因素。通过对窖池建造的改进,加强了保水功能,使产出酒的优质品率提高了6%-10%,口感酒体较丰满,香气较纯正,总体质量有所提高。 相似文献
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作者从窖泥用土的选择,菌种的选育,所需的设备,原材料,窖泥的配方及窖泥的生产工艺几方面,详细介绍了浓香型窖泥的培养制作方法。将该法制俄窖泥用于新建车间窖池,使优质品率和出酒率有较大幅度的提高。 相似文献
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脂肽生物表面活性剂摇瓶发酵条件的研究 总被引:1,自引:0,他引:1
目的:对选育出的脂肽生物表面活性剂高产菌株SD59的摇瓶发酵条件进行了研究。方法:通过正交实验和单因素实验等方法研究了各种营养和环境因素对菌株SD59发酵生产脂肽生物表面活性剂的影响。结果:优化的培养基组成(g/L):可溶性淀粉20.0,硫酸铵6.0,硫酸镁0.3,氯化钙0.08,酵母粉0.6,磷酸二氢钾2.0,磷酸氢二钠8.0,初始pH7.2;最佳培养条件为500mL三角瓶的装液量为200mL,接种量5.0%,培养温度36~38℃。结论:在此优化发酵条件下,脂肽表面活性剂的产量可达到1.2g/L。 相似文献
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Jin‐Song Zhao Jia Zheng Rong‐Qing Zhou Bi Shi 《Journal of the Institute of Brewing》2012,118(4):356-360
Pits are necessary solid bioreactors for the production of Chinese strong aromatic liquor, and the microbial community in these pits significantly affects the quality and yield of the liquor. In this study, the microbial community structures of different aged pit muds were evaluated by phospholipid fatty acid analysis. The results indicated that the microbial community was composed of bacteria, actinomycetes and fungi, with Gram‐positive (G+) bacteria and anaerobic bacteria being dominant. The biomass of the pit mud increased and the microbial community shifted to G+ bacteria as the pit age increased. Principal component analysis showed that PC1 consisted mainly of fatty acids of saturated (15:0, 16:0 and 18:0), methyl‐branched (a15:0, i16:0, a16:0, i17:0 and 8Me18:0), polyunsaturated (16:1ω7c, 16:1ω9) and cyclopropane (cy17:0 and cy19:0), and PC2 mainly of 18:1ω9, 18:1ω10 and a14:0, The characteristics of the microbial community structure in the pit mud resulted from the stress effects of low oxygen concentration, low pH and a high alcohol concentration. Copyright © 2013 The Institute of Brewing & Distilling 相似文献
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柑橘是我国大宗水果,皮中富含精油、果胶和类黄酮等生物活性成分,是一种具有较高开发价值的资源。应用氨基酸全自动技术分析温州蜜柑皮中的蛋白质,结果表明蛋白质含量为3.446%(干物质),其中必需氨基酸含量1.239%,比重35.956%,略小于大豆分离蛋白的39.4%;蛋氨酸、胱氨酸为限制性氨基酸。采用索氏法对果皮进行萃取,以GC-MS技术对萃取物中的脂肪酸进行分析鉴定,确定含有11种脂肪酸:6种饱和脂肪酸,占总量的26.06%,主要是十六烷酸19.75%;5种不饱和脂肪酸,占总量的66.20%,主要是9,12-十八碳二烯酸(亚油酸)37.14%和亚麻酸19.06%。 相似文献
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纳米光催化功能性滤料的试验研究 总被引:2,自引:0,他引:2
为了研究空气过滤材料降解甲醛及抗菌性能,采用涂层法对涤纶针刺毡进行纳米TiO2功能性整理,得到一种纳米光催化功能性滤料.通过静态试验表明,纳米光催化功能性滤料的甲醛降解率为28.5%,而滤料原样的甲醛降解率为9.62%;动态试验表明,纳米光催化功能性滤料试验中1h系统内甲醛浓度平均降低了64%,滤料原样试验中1 h系统内甲醛浓度平均降低了40.4%.在抗菌性的试验研究中,将大肠杆菌、金黄色葡萄杆菌分别注射在纳米功能性滤料上,6 h后大肠杆菌几乎全部被杀死,金黄色葡萄杆菌的存活率为0. 相似文献
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《Food Reviews International》2013,29(4):338-358
In West Africa, varieties of agricultural produce are processed traditionally for value addition, and they significantly support food security. Nonfermented and fermented foods are important traditional foods that support dietary intake of the people and enhanced nutritional requirements and health. Throughout the subregion, there is limited large-scale industrial production of traditional foods; many of the food processing facilities are still home based or in cottage industries using rudimentary tools and techniques. Over decades of cottage processing, different mechanization techniques such as mechanical grating, sieving, and hydraulic pressing have improved scale and increased productivity. Evaluation of food safety in the subregion revealed very little consideration for good manufacturing practices (GMP) and unhygienic sanitation leading to frequent chemical and microbial contamination. In general, there are obvious food safety challenges across the subregion and reported cases of foodborne diseases and outbreaks. Many times, outbreaks and foodborne epidemics are poorly documented. Identification of associated safety issues could be an essential prerequisite for improving risk management and healthy food supply. This review depicts different food safety challenges associated with processing and consumption of traditional foods in the subregion. Accurate information on food safety will be very relevant to policy formulation and control. 相似文献
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总结纺织材料在建筑领域中的应用研究进展。通过介绍建筑用纺织材料的结构特点及优势,探讨了纤维增强复合材料、隔声隔热材料、帆布材料、膜结构材料、防水材料、防污自洁膜材和装饰用材料在建筑领域中的应用,指出建筑用纺织材料的发展潜力和开发策略是引进技术提高生产制造水平、有效利用新型天然纤维、开发智能建筑用纺织品,认为,传统建筑材料与纺织材料相互结合、共同促进是未来的发展趋势。 相似文献