共查询到19条相似文献,搜索用时 218 毫秒
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茶酒是以茶叶为主要原料,经发酵或配制而成的各种饮用酒的统称,具有良好的保健功效。在生产和贮藏期间,茶酒色泽易发生褐变,在一定程度上影响了其产品的货架期和外观质量。综述了茶酒的类型及研究现状,对茶酒褐变的原因进行探讨,旨在探索有效降低茶酒褐变程度的方法,为茶酒质量的提高提供参考。 相似文献
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为了得到一款色泽橙黄透亮、口感纯正柔和、营养、低度、风味独特的配制型白茶酒。以都匀白茶、高粱酒和柠檬糖浆为主要原料,通过单因素和正交优化试验,以感官评分为主要指标,研究都匀白茶添加量、高粱酒添加量、柠檬糖浆添加量三个因素对配制型都匀白茶酒的影响。其中还有萜类、醛类、醇类等多种挥发性化合物。研究表明:配制型都匀白茶酒最佳配比为茶叶2.0 g、高粱酒8.0 m L、柠檬糖浆5.5 g;白茶酒中含有酯类、萜类、芳烃、杂环化合物、酮类、烃类、醛类、其它类、卤代烃、含硫化合物、含氮化合物、酚类、醇类、胺类等挥发成分;经此调配制得的白茶酒口感纯正柔和,茶味与酒味协调,色泽橙黄透亮,有光泽,无杂质,其酒精度5.0%vol,糖度5.6%,感官评分89.0,营养价值高,具有一定的保健功效。 相似文献
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茶酒是将茶与酒作为原材料,采用特殊的工艺制得的即有茶的香味和色泽,又有酒的特性的一种含酒精饮品.生产方法主要有浸提法、酿制法、配制法. 相似文献
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Maria J. Muthuiah Jibu Thomas Rajagopal Raj Kumar & Abul K. Azad Mandal 《International Journal of Food Science & Technology》2009,44(10):2070-2074
Green tea is proved to be a source of various biochemicals, which projects tea to be a health drink. The study investigated free radical scavenging activity of leaf extracts of south Indian tea clones, individual catechin molecules and documented the influence of various additives on the scavenging activity of black tea infusion. Among the tea clones, UPASI-17 contained higher quantum of catechins. Lower content of catechins correlated with low 1,1-diphenyl-2-picrylhydrazyl and hydroxyl scavenging activities. Low scavenging activity was noticed in gallocatechin. A wide variation was found in free radical scavenging activity of individual molecules, leaf extracts, tea liquor and its combination with the additives. Tea liquor along with lemon juice showed the highest free radical scavenging activity. When sugar and lemon juice were amended with tea liquor, free radical scavenging activity declined marginally. Addition of milk and sugar with tea liquor declined the free radical scavenging activity significantly. 相似文献
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采用色差法分析了红茶、绿茶、乌龙茶及不同产地的黑茶的汤色。根据茶汤色度值筛选出特征变量,建立了湖南黑茶的分类树CART识别模型。结果表明:湖南黑茶与绿茶、乌龙茶和红茶间两两比较,除与乌龙茶Δa*差异不明显外,其他色度值都存在显著差异;对于不同产地的黑茶对比分析,湖南黑茶除与青砖的ΔL*和生普的Δa*差异不大外,与六堡茶、青砖、藏茶、生普和熟普茶的ΔL*、Δa*、Δb*和ΔE*之间有明显差异;采用预测集样本评估模型质量,分类树CART模型对于茶叶类别和产地的识别正确率分别是100%和93.3%。因此,利用茶汤色度值建立起的分类树CART模型,可以得到湖南黑茶很好的分类识别效果。 相似文献
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中国贵州茅台酒是世界三大蒸馏名酒之一,为中国最早的4个名白酒之冠,蝉联5届中国名白酒,是中华民族的宝贵遗产。茅台酒能长盛不衰,应该说得益于科技的介入和技术进步的促进。茅台酒把传统与科技结合起来,从而提升了自身,也促进了行业的技术进步;为白酒的香型区分和分香型评比做了奠基和原始启动;最早探索实践和提出白酒勾兑的基本概念;不断探索研究饮用白酒与身体健康的关系,并提出了适量饮用有益健康的论点。(小雨) 相似文献
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Quan V. Vuong 《Critical reviews in food science and nutrition》2014,54(4):523-536
Tea has been widely consumed around the world for thousands of years and drinking tea is a daily habit for people of all ages. Tea is a major source of flavanoids, which have become well known as antioxidants. Tea also contains caffeine and theanine, which have been found to associate with health benefits. Many animal and epidemiological studies have been conducted to investigate the link between tea consumption and human health. However, common questions that arise about tea consumption include: whether all teas are the same, why drinking tea is linked with health benefits, how do the different ways of tea preparation impact on availability of tea components, how much and how long a person should consume tea to obtain health benefits, and whether there is any negative health effect associated with drinking tea. To answer these questions, this paper outlines the tea components and their link to human health, discusses major factors affecting availability of tea components in a tea cup, and reviews the latest epidemiological evidence linking tea consumption to human health. 相似文献
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为了改善"兼香型白酒"在口感上的不足,增加名优白酒的固态感,消除风格上的嫁接感,达到各香型白酒在窖池内天然生成,真品真味,西凤酒股份有限公司进行了为期三年的分香型发酵工艺研究实验,达到了预期的目的,实验证明此方法是可行的,为生产高品质、纯粮固态,绿色健康饮料白酒提供了有力的技术支撑。目前此技术还在进一步完善中。 相似文献
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白酒的品评、勾兑与调味这几项工作在白酒生产工作中极其重要,对成品酒的感官质量起着重要的作用。白酒的品评、勾兑与调味是研究提高产品质量的一个不可分割的整体。品评是判定酒质好坏和勾兑、调味水平的主要依据,而勾兑和调味又都是在品评的基础上进行。有人形容勾兑是“画龙”,调味是“点睛”,品评是鉴别。所以说品评是勾兑、调味的前提,没有品评就谈不上勾兑,不会品评的人也不能胜任有水平的勾兑和调味工作。 相似文献