共查询到20条相似文献，搜索用时 31 毫秒
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简要综述目前新型非糖甜味剂新品种的开发现状，介绍了强力甜味剂代表品种三氯蔗糖的结构、特性和生产应用． 相似文献
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试以林蛙油为原料,对甜味剂、稳定剂和主体配方做正交试验,应用Minitab统计软件对各因素均数进行分析,最终确定最优的林蛙油固体饮料配方,其中林蛙油0.2g/100mL,甜味剂0.4%、酸味剂0.3%、碳酸氢钠0.25%、β-环状糊精1%,乳粉0.4%,羧甲基纤维素钠0.04%,乳粉0.2%,蔗糖酯1.5%。 相似文献
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LuAnn Soliah Janelle Walter Thomas Parks Kathleen Bevill Bernadette Haschke 《Early Childhood Education Journal》1997,24(4):243-247
The health and nutrition implications of high sugar intake for young children are discussed. Infants and young children prefer foods that taste sweet. Sugar substitutes used in moderation can provide a compromise for child care providers who want to offer nutritious food which young children will eat. This study examined sweetener preferences of young children, including a new sweetener (Sweet One®). Participants (3–8 years of age) sampled a beverage and plain cottage cheese sweetened with either sugar or Sweet One® as part of a sensory difference test. They also ranked four vanilla puddings sweetened with sugar and three FDA approved sweeteners. In the difference test, the subjects were able to tell the difference between sugar and Sweet One® in the beverage, but not in the cottage cheese. There was no consensus among the panelists for a sweetener preference in the rank-order test. 相似文献
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综述了甜味化合物的种类、对甜味化合物的构效关系、甜味理论的发展以及甜味化合物受体模型的研究 ,指出随着实验手段的强化和计算机模拟技术的发展 ,上述领域的研究应该有深入的发展 相似文献
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在对近年来活性环二肽的发现及其合成策略进行了综述的基础上，指出环二肽在自然界及天然产物中广泛存在，由于其结构特殊，使得环二肽成为药物化学中一个重要的药效团．许多环二肽具有强的生理活性． 相似文献
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论述了糖生物学、糖组学与糖生物工程学的产生及其主要研究内容。糖复合物中的糖链作为生物识别的标志及信息分子,参与了生物体众多的生理、病理过程及其调控。糖组学研究细胞内合成所有糖链（包括糖复合物）的结构与功能,是破解生命信息的第三条途径。糖生物工程学为研发新型抗感染药物开辟了一条新途径。 相似文献
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ABSTRACT: A laboratory experiment is described that has been designed to allow students to gather meaningful structural and mechanical data with limited equipment. Images are acquired using a computer‐interfaced flatbed scanner. Although intended for bread, this approach can be applied to other food products as well. This experiment may be as broad or narrow and as complex or simple as desired. Students have the decided advantage of gathering data themselves, not merely viewing a demonstration of expensive research‐grade instrumentation. Experience with image analysis software facilitates a better understanding of quantifying structural data than can be obtained from lecture or text material. Students should become aware of the dependence a specific property, texture, on the underlying structure of food materials and gain an appreciation of the role food structure has in determining many quality parameters. 相似文献
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对影响圣女果脯品质的烫漂、硬化、渗糖、浸糖和干燥等关键工艺技术进行研究。表明，烫漂、硬化、渗糖是圣女果脯生产的必要工序、浸糖和干燥，则是控制成品含糖量及影响产品品质的关键因素。 相似文献
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讨论了多种长度原料的最优搭配问题。首先根据成品规格和原料数据,通过总数除法确定成品数量的上限和成品结构的限制,明确优化目标;其次逐步衔接,建立多个线性规划模型,在原料数量、成品总长、成品构成的约束条件下,最小化原料总数或最大化成品数量;最后经计算机软件运行,得到最佳搭配方案。 相似文献
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内蒙古特色农产品区域专业化发展研究 总被引：1，自引：0，他引：1
倪学志 《内蒙古大学学报(人文社会科学版)》2010,(5):66-73
以比较优势理论为依据,利用综合比较优势指数法对内蒙古各种农产品进行比较优势的定量测定,结果发现内蒙古具有综合比较优势的农作物有：玉米、高粱、谷子、大豆、马铃薯、葵花籽、胡麻籽、甜菜;内蒙古主要畜产品中具有比较优势的有羊肉、牛奶、牛肉和禽肉。内蒙古应选择以上种类的农产品进行专业化生产。 相似文献
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本文细致考辨了古代汉语中乳制品及糖类两组名物语词,共涉及八个名物词.在占有数据的基础上,仔细考辨,修正了当今一些大型辞书对这两组名物词释义不够详尽的缺憾. 相似文献
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Margarita Pavlova 《Educational Research for Policy and Practice》2017,16(1):77-93
School to work transition is an important aspect of lifelong learning that has increased in significance as the knowledge-based economy takes off in developed countries. Rapid structural economic changes, the importance of innovation, and a shorter lifecycle of products require education systems to adjust to the needs of economies and individuals. Educational reforms in many countries aim to improve school students’ readiness for their important move to post-school life. Countries organize different pathways for students following secondary school level that are designed to meet both students’ demands and the needs of economies. This article explores Hong Kong students’ aspirations and realities. Although the majority of students plan to complete the final year of high school and 91.5% planned to undertake the Hong Kong Diploma of Secondary Education (HKDSE) to be eligible for higher education, in reality a significant number of school leavers do not perform well and should undertake training for employment. In addition, many students who are eligible for tertiary education cannot be admitted to government sponsored universities due to the limited number of places. This article begins with a consideration of students’ aspirations, and then outlines the realities of transition and current issues. It concludes with some suggested policy measures that could improve equity during this school to work transition period. 相似文献
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媒介产品具有一般商品的共性，又有不同于一般商品的差异性。使用价值的特殊性是媒介产品区别于一般商品最根本的经济特性。理解媒介产品的使用价值，对于我们理解传媒经济是非常必要的。媒介产品的使用价值更多地由消费者的类别来决定和划分。媒介产品在性质、效用、价格、市场等方面都表现出来的两重性或多重性都可以通过使用价值特性得到说明。媒介产品二次售卖的实质，乃是对媒介产品使用价值的分开定价和分开售卖。 相似文献
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王小凤 《荆门职业技术学院学报》2007,22(12):59-60
目的:探讨老年糖尿病特点及其诊断方法,提出临床医生在诊治中应提高警惕性,减少漏诊和误诊。方法:自2005年1月~2006年4月共收集17例老年糖尿病并发症入院资料。结果:3例病人分别因心肌梗塞、肾功衰及高渗性昏迷死亡,其余患者经积极治疗,并发症及血糖控制好,出院。结论:老年2型糖尿病患者合并症多,容易漏诊和误诊。医生应提高警惕性,重视对OGTT及餐后血糖的监测。 相似文献
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内蒙古自治区拥有包括森林、沙漠、冰雪、民族风情、历史文化等在内的独特的旅游资源，草原民俗旅游是该地区主要的旅游产品。文中提出了内蒙古希拉穆仁草原旅游区草原旅游开发的对策和建议。 相似文献
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R. L. Brown 《Structural equation modeling》2013,20(4):287-316
Incomplete or missing data are routinely encountered in structural equation problems. Although current literature supports the use of a direct approach for modeling the missing values in a structural equation model, many situations are not applicable for the effective use of this approach. This leaves the use of an indirect approach for dealing with missing information. There is a general lack of knowledge regarding the efficacy of the use of the indirect approach in structural equation modeling. This article assesses the efficacy of five indirect methods for estimating parameters in a structural equation model with various levels of missing data. 相似文献
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滁州是个农业大市,农产品具有很好的优势,如地方特色农产品滁菊,但由于当地农产品加工企业尚未主动开拓国际市场;缺乏专业的外贸人才,缺乏对国际市场行情和供需的信息等因素的存在,造成滁州市农产品养在深闺却难进国际门。这就需要企业继续提升农产品质量;加大宣传力度,扩大滁州农产品的知名度;转变观念,积极主动地开拓国际市场;培养和引进专业外贸人才以及政府做好相关信息提供和服务工作。 相似文献
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南超兰 《武汉职业技术学院学报》2012,(5):118-120
我国农产品流通环节正在受到诸多质疑,城市农产品价格暴涨与农民朋友低价甚无法销售农产品等现象,形成农产品流通过程中令人困惑的问题。究其原因,正如国务院总理温家宝所言＂农产品流通环节是整个流通链中最薄弱的。流通环节过多不仅会造成价格上涨,而且还会造成农产品的浪费。＂要改变这种状况,就必须完善农产品流通链,提高流通效率,降低流通成本,让农民朋友受益,让消费者受益。总而言之,优化农产品流通链,对构建和谐社会、提高农民收入、繁荣农村经济、发展农业生产具有积极意义。 相似文献