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从寿宁乌龙茶生产历史和地理标志产品保护等方面简要概述了寿宁高山乌龙茶的生产现状,分析了寿宁高山乌龙茶产地、品种和政策等生产优势条件,提出了寿宁颗粒和条形高山乌龙茶加工工艺和品质表现。 相似文献
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陈老乌龙茶因其独特的感官品质和数量的稀缺,在市场上越来越热。人们开始关注研究陈老乌龙茶的收藏价值和保健功效。本文首先综述了陈老茶在贮藏过程中的内含物变化,分析其功效。如茶多酚、氨基酸和咖啡碱随着贮藏时间的延长趋于减少,但黄酮类、没食子酸等含量有所增加。黄酮类具有抗氧化、消除自由基、清热解毒、抗癌抗突变、抑制动脉粥样硬化、降血脂、降血压等作用,没食子酸是心血管的关键元素。其次重点介绍了乌龙茶的创新陈化工艺,即发花技术。经过自然陈化或工艺陈化,茶叶口感逐渐趋于陈醇顺滑,还会衍生出独特的果酸香、梅子香、蜜香等独特的味道。同时例举了民间及历史上关于老茶的应用和药效的阐述。在此基础上分析陈老乌龙茶的收藏价值。最后从原料要求、贮藏条件要求、包装材料要求等几个方提出收藏好茶叶的具体方法。 相似文献
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闽南乌龙茶加工工艺研究进展 总被引:1,自引:0,他引:1
福建省作为全国乌龙茶主产区之一,具有悠久的产制历史和成熟的加工技术.近年来,随着乌龙茶产品的日益热销,福建乌龙茶的加工技术和产品种类更是快速发展和多样化.本文以闽南产区的乌龙茶为对象,对闽南乌龙茶主要加工工序(萎凋、做青、造型、干燥等)从20世纪80年代至今在品质控制方面的研究发展进行梳理,总结了其优化参数、探索机理、现代技术运用和新工序研发等4大特点,以期为闽南乌龙茶工艺品质控制的进一步研究提供依据,同时建议今后应关注按品种特性对现有工艺品质理论和成果进行整合、加强新工艺品质的基础理论研究. 相似文献
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阐述了乌龙茶资源、育种、栽培、加工、机械等方面的科技创新及乌龙茶产业的发展趋势,认为依靠现代科技进步,选育出高优乌龙茶新品种,配套以栽培、加工等重要技术措施是全面提升乌龙茶产业及其可持续健康发展的关键。 相似文献
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乌龙茶作为整个茶叶产品体系中重要的茶叶品类,其有着悠久的饮用历史。研究乌龙茶茶褐素提取工艺对我们有效应用乌龙茶有着重要作用。而在这一研究过程中,通过对乌龙茶茶褐素中所具有的蛋白质、总糖等多种元素的含量进行测定,也能够帮助我们对乌龙茶茶褐素的抗氧化状况进行有效认知。本文拟从乌龙茶的具体状况分析入手,结合乌龙茶茶褐素的特点及性能分析,依据相关素材探究乌龙茶茶褐素提取工艺的具体优化思路,并且探究提取工艺优化影响下的乌龙茶茶褐素的抗氧化性。 相似文献
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目的:研究传统红茶与乌龙茶晒青工艺相结合的创新加工技术。方法:在采取传统红茶工艺的基础上结合乌龙茶晒青工艺,进行茶叶加工技术的研究。结果:对传统红茶与乌龙茶晒青工艺相结合的加工技术流程和数据进行总结,为:鲜叶、晒青(鲜叶的失水率为6%-10%)、萎凋(萎凋叶含水量为62%-64%)、揉捻、发酵(发酵温度设置在32℃、发酵时间为3.5h)、造型、烘干和提香,最终得到品质高的新型红茶。结论:通过适宜的调节晒青程度、萎凋程度、控制发酵过程,可以在传统红茶与乌龙茶晒青工艺结合的条件下得到高品质的红茶成品。 相似文献
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乌龙茶种质资源的利用与品种创新 总被引:4,自引:0,他引:4
乌龙茶是我国的第二大茶类,乌龙茶种质资源集中在闽北、闽南、粤东和台湾4个地区。本文概述了乌龙茶种质资源的区域特征,以及乌龙茶种质资源的利用和品种创新研究现状,铁观音和黄旦已成为乌龙茶类茶树育种的核心种质。 相似文献
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简述江西省近30年来棉花栽培技术六大创新 总被引:3,自引:3,他引:0
总结江西省近30年来棉花生产上的成功经验,归纳概述了棉花生产栽培技术上的地膜覆盖植棉技术、营养钵育苗移栽技术、优质高产配套技术、棉田高效套种技术、棉花节本栽培技术、基质育苗裸苗移栽技术六大创新。其中节本栽培技术中还包含多年免耕技术、化学除草技术、轻简施肥技术、化学调控技术和行株距配置改良技术等。 相似文献
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胡昌浩先生是国内著名玉米栽培研究专家,他在玉米栽培方面的理论创新和实践探索为我国玉米栽培学科发展和玉米增产增收做出了卓越贡献。他开创的玉米叶龄模式、叶片结构与功能、品种演进的生理机制、群体光合性能与产量的关系等许多研究创新性强,取得多项科研成果。他大力推广的栽培技术为玉米增产起到了重要作用。总结他的学术思想和科研育人成就对今天的科学研究、人才培养和社会服务理念都有良好的启迪作用。 相似文献
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Some chia seed flour effects relating to different bread-making process phases and variables were studied by distinct image analysis and physicochemical techniques. Wheat flours with three different degrees of substitution (5%, 10% and 15%) were tested. In technological terms, the aim was to study the influence and properties of chia flour on several relevant parameters, such as pasting properties, growth kinetics and internal crumb structure during dough fermentation; and baking process, mass loss, water activity and texture profile of the end product during its storage. Some changes in pasting properties were observed. The effects obtained by image analysis techniques proved that addition of chia improved gas retention in dough and cut the time required to reach maximum dough development. A delay in hardness and water loss during storage of breads was also observed. Bread presented reduced water activity, and contained the same amount of moisture compared with the control. The mucilage provided by chia has properties that can explain these observed effects given the influence on water-holding capacity and its interactions with gluten proteins throughout the gluten matrix-forming process. 相似文献
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Local governments, NGOs, system of rice intensification (SRI) adopters, and researchers in Cambodia have extensively discussed the SRI. Agreement on the benefits, however, remains elusive. Some claim SRI increases rice yields at lower costs; others state that the evidence is still inconclusive. The adoption and impact of innovations influenced by the most practical SRI principles, which adopters can and do implement, as well as other SRI labor requirement have yet to be comprehensively investigated. This study aimed at elucidating and comparing distinct aspects of SRI labor requirements and conventional practices that can lead to more intensive SRI adoption. A household survey and field observations were conducted in three rain-fed villages in the southern part of Cambodia: two in Kampot Province and one in Kampong Speu Province. Findings showed little or no difference between SRI labor requirements and conventional practices. Laborers are in high demand when preparing land and nurseries, transplanting seedlings, and harvesting. Rice farmers alone or hired laborers have generally proved sufficient to date. Hired labor costs depend on the supply of farmer-family labor and the efficacy of the “Sharing-hand” system, not on farming techniques per se. This system helps alleviate hired labor costs, one of the highest cost factors. The findings also indicated that the degree of SRI adoption shows no correlation between the home-to-plot distance and availability of farmer-family labor or hired labor. The key factors for improving the degree of SRI adoption are farmer zeal and careful attention rather than the home-to-plot distance and availability of labor. 相似文献
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