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以成熟龙葵果、蜂蜜、白砂糖作为原料,用果酒酵母和活性干酵母,通过优化工艺、确定单因素条件、设计正交试验,酿制龙葵果酒。实验确定的优化发酵条件为:含糖量17%;发酵温度26℃;果酒酵母和活性干酵母比例为3:1,加量1.3%;发酵时间5d;酿制的龙葵果酒色泽浅黄,酒味芳香,口感醇厚;总糖含量8%~10%;酒精含量8.5%;pH为4.1~4.4。 相似文献
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实行农产品超市连锁经营,是现代零售业的发展趋势,也是农业商品化生产成熟的标志。日前,记者针对节日期间北京各大超市中生鲜食品销售状况,走访了北京大型综合超市之一—超市发副总裁李燕川。 记者:新春到来之际,和市场上众多的超市一样,超市发迎来了一个新的销售高潮。我们想了解一下柜台上粮油、蔬菜、水果以及各种饮料等各类农副产品中哪类产品比较畅销?这些需求的变化,将对超市的采购带来什么影响? 李燕川:随着国民经济的快速发展,人民生活水平不断 相似文献
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咖啡的起源、发展、传播及饮料文化初探 总被引:3,自引:0,他引:3
古代非洲埃塞俄比亚人发现了咖啡,中世纪阿拉伯人栽培了咖啡。中世纪晚期,中国人促进了咖啡从神饮药饮转变为大众休闲饮料,土耳其人发明了咖啡正宗科学的饮用法,印度人参与了传播咖啡。在地理大发现时代(15世纪末至17世纪末),欧洲人把咖啡传遍全世界;此后又将咖啡馆文化发展得最繁荣。所以非、亚、欧人民都为咖啡发展为今日世界的三大饮料之一做出了贡献。晚清咖啡传入我国,民国在华已站稳脚跟。改革开放以来咖啡饮用开始在中国流行,并在逐步形成自己的咖啡文化。 相似文献
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目的:了解大学生奶茶知识、态度和行为(KAP)现状及存在问题,并探索其影响因素,为有针对性地指导大学生奶茶合理消费提供科学依据。方法:采用调查问卷的方式,调查在校大学生奶茶KAP现况,并对结果进行统计分析。结果:大学生奶茶KAP得分普遍偏低。知识得分中,女大学生高于男大学生、上海地区高于非上海地区大学生、医学类高于非医学类大学生(P<0.05);态度得分中,未找到有统计学意义的相关因素;行为得分中,男大学生高于女大学生、非上海地区高于上海地区大学生、非医学类高于医学类大学生(P<0.05)。结论:奶茶饮用在大学生中是一个普遍现象,且大学生对奶茶营养知识不够了解、态度不够积极、饮用行为也不够健康。大学生奶茶饮用行为的改善需要家庭、学校和社会等各方面的努力。 相似文献
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本文随机选取5种品牌的银杏速溶茶产品,依照GB/T 8313—2018对其中儿茶素含量进行HPLC检测分析,用无水乙醇对5种样品做超声波辅助提取。检测结果发现,5种银杏速溶茶的随机抽样测验均符合目前国家标准茶饮料茶多酚最低含量要求。本文通过参照茶饮料国家标准,在一定程度上分析5款泰州市售银杏茶饮料的品质,给消费者提供了参考。 相似文献
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云南省特色农产品产地优势研究 总被引:2,自引:0,他引:2
刘绍吉 《中国农业资源与区划》2017,38(10):222-227
[目的]从产地优势入手分析云南省特色农产品的发展,以期为云南省特色农产品区域发展和产业规划提供借鉴。[方法]文章根据云南省特色农产品的年产量及其在全国的地位和发展优势,确定其主要特色农产品为茶叶、烟草、咖啡、野生菌和鲜花,采用实地调查法和统计分析法,从土壤、气候特点和交通区位等方面分析云南省主要特色农产品的产地优势。[结果]云南省四大产茶区以山地红壤为主,土壤偏酸性,温度适中,降雨充沛,湿度大,完全符合茶树的生长条件,该地具有天然的产茶优势。云南由于海拔较高纬度较低、日照充足且夏季气温偏低,对烤烟糖分积累有益,其烟碱含量相对较低,尤其是六大烤烟产区气候环境完全符合烤烟生长条件,特别适宜烤烟生长,因此云南六大烤烟产区的烤烟产量历年位居全国第一。云南省西南地区的气候条件特别符合小粒咖啡生长的要求,再加上独特的区位优势,是咖啡大量销往国内、国际两个市场。云南高温高湿的环境完全符合野生菌生长的要求,使多种野生菌在云南大量繁殖。独特的地理位置、特殊的地形地貌和良好的水热条件共同作用下,云南花卉具有周年生长的优势。[结论]云南省盛产多种特色农产品主要得益于当地独特的地理环境和土壤气候条件。根据不同农产品对生长环境的要求可将云南省优势农产品划分为滇西茶叶和烤烟产区、滇东烤烟产区、滇西南咖啡产区、滇南野生菌产区和滇中鲜切花产区5个区域。借助独特的地理环境优势发展集约化生产,云南省特色农产品必将会充分发挥产地优势,带动区域经济更好更快发展。 相似文献
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In this study an attempt was made to determine and evaluate the factors affecting an individua?s probability of milk use in terms of a multivariate probit model. Cross-sectional survey data obtained through telephone interviews of individuals in three New York State Markets were used in the analysis. Various economic, demographic and socio-economic variables were hypothesized as being influential in determining an individual's likelihood of using fluid milk. Accordingly, the respondent's age was found to be highly influential in determining probability of milk use. Specifically, milk use probabilities were found to decrease as the age of the respondent increased. Moreover, the probability of milk use was found to be significantly greater for male respondents than for females. Also, if an individual was a consumer of beer or coffee, his probability of milk use was significantly reduced. Milk use probabilities were also reduced if the respondent was a consumer of soft drinks; however, they increased if he was a consumer of fruit juices or drinks. The level of household income was not found to be significant in affecting the respondent's probability of milk use. In general, if an individual could recognize the milk promotion theme and identify it with milk, his likelihood of milk use was greater than for his peer who was unaware of the promotion theme. 相似文献
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主要探讨了以鸡油菌为原料,利用鸡油菌孢子液体深层发酵,获得菌丝体与发酵液的混合液。通过单因素试验及多因素多水平的正交试验确定出饮料的最佳配方,制作鸡油菌孢子发酵型饮料。对鸡油菌孢子发酵型饮料进行了感官质量的评定,结果表明:发酵120 h时发酵液的感官最好,多糖含量最高,发酵饮料的因素影响主次顺序为发酵液>稳定剂>柠檬酸>白砂糖,发酵饮料的配方以46%的发酵液、0.22%的柠檬酸、0.18%的稳定剂(CMC-Na)、7.5%的白砂糖时制得的发酵饮料品质最佳。 相似文献
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This study addresses the trade‐off between nutrition and taste in expenditure on breakfast cereal, milk, bread, and soft drinks. Within each category, products have similar cost and convenience, but have markedly different flavor and nutritional content. Using annual expenditure data for a large sample of households participating in the ACNielsen Homescan system, we regress a measure of “healthiness” on household demographics and market prices, and find that households with college‐educated heads and higher incomes made significantly healthier choices in all four categories. These effects are puzzling in that the nutritional differences between products were well known to consumers, and there are no cost or convenience differences between them. The presence of children was associated with less healthy choices, especially for cereal and bread, while older households made healthier choices in all categories except milk. 相似文献
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Competition Effects of Supermarket Services 总被引:1,自引:0,他引:1
Alessandro Bonanno Rigoberto A. Lopez 《American journal of agricultural economics》2009,91(3):555-568
This article investigates the competition effects of supermarket services using fluid milk as a case study. A simultaneous equation model for services and price competition is estimated with scanner data from fifteen supermarket chains using two alternative measures of services, namely store size and principal components of in-store services. Empirical results show that increasing services results in economies of scope, greater supermarket chain-level demand, lower price elasticity of demand, and enhanced market power, leading to higher milk prices and quantity sold. We conclude that, as result of service competition, supermarkets differentiate themselves from competitors and successfully attract less price-sensitive consumers. 相似文献