核黄素磷酸钠生产工艺的研究

研究磷酸化反应中核黄素与POCl3及H2O的配比、反应温度、反应时间等因素对核黄素磷酸钠合成的影响。结果表明,在吡啶和乙腈的混合溶剂中,使核黄素与其4倍摩尔量的三氯氧磷在35℃左右反应2h,然后水解反应混合物,再用NaOH溶液中和,能够以75％以上的收率得到核黄素磷酸钠。     

黑龙江省大豆产业现状分析

１大豆生产及收购情况１．１生产情况 黑龙江是我国大豆主产区之一,２００１年全省大豆播种面积为４,２９７万亩（合２８６．６１万公顷）,与去年的４,３００万亩基本持平。据国家粮油信息中心的统计数据显示,今年东北地区（含内蒙古）的大豆播种面积达到４４７万公顷,较２０００年增长７万公顷,增幅为１．６％。 今年华北黄淮六省（含河北、山西、江苏、安徽、山东、河南）的大豆播种面积为 ２９５万公顷,较 ２０００年增长５．７％;预计２００１年全国大豆播种面积达到９６４万公顷,较２０００年增长３．１％。这一增长幅度明显…     

核黄素结合蛋白的性质及其功能

来自鸡的包括鸡蛋的核黄素结合蛋白是单亚基磷酸糖蛋白,能特异性地结合VB:并将其输送到胚胎,以维持胚胎的生长发育.介绍它的种类、分子的组成与结构、结合核黄素的分子机理、分子的热稳定性、对盐酸胍的化学稳定性以及生物学方面的功能.     

我国果品产业的现状,问题与对策

本文对我国果树种植业、贮运保鲜业、果品加工业和相关技术与市场现状、问题等进行了深入分析，并对今后的一体化产业发展提出了对策和展望。     

我国核桃产业发展现状、前景及对策分析

在分析中国核桃产业发展现状的基础上,总结中国核桃产业发展所呈现出的七大特点,并分析和展望了中国核桃产业未来的发展前景,提出相关政策建议。     

新疆兵团棉花产业集群发展的现状与对策

近年来，各地都在实施资源优势转化战略，着力发展农业产业集群，因为这一举措不仅可以有效地引导产业结构的调整，拓宽农产品的加工领域，延长农业产品生产的产业链，而且为当地农民增收和地方经济的发展做出积极的贡献。     

简述珍珠产业现状和发展对策

中国的珍珠产业经过40多年的发展,已经初具规模。但是在发展过程中不可避免的出现了一些问题,珍珠企业需要因地制宜的采取一系列措施,提高自身在市场发展中的竞争力。     

我国山葡萄产业的发展及对策

本文重点总结了当前我国山葡萄生产栽培和山葡萄酒的生产现状、存在问题，并提出了推进山葡萄产业持续发展的对策。     

我国果品产业发展的现状与建议

我国改革开放以来,特别是近几年来,随着农业结构的调整和西部大开发,果品生产发展很快,使我国成为世界果品生产大国。果品生产的发展又带动了果品贮藏、运输、加工、流通业的发展,使果品从产到销成为一个大产业。同时,果品生产的发展不仅使果品生产成     

核黄素生产技术进展

综述了核黄素生产中发酵、分离提取以及发酵废液处理的工艺进展，展望了核黄素关键生产工艺的发展前景。     

中国家具市场营销策略的探讨

本文通过对中国家具市场现状及市场发展趋势的探讨,进而分析, 总结了家具企业市场营销原则与中国家具流通企业的发展新战略,以期对中国家具流通业有所启示。     

初步研究AB-8大孔吸附树脂对核黄素的吸附性能

主要研究了AB 8型大孔吸附树脂对核黄素的吸附性能 ,测定其动态吸附曲线 ,并对洗脱剂进行了初筛。结果表明 ,AB 8型大孔吸附树脂对核黄素的饱和静态吸附量为 12 .1mg/g树脂 ;核黄素浓度、吸附温度及溶液pH值对吸附有影响 ,尤其是当 pH值大于 8时 ,吸附量急剧下降 ;洗脱时 ,采用乙醇 - 0 .1mol/LNaOH混合液 (v/v ,1:1)的洗脱效果最佳 ,最高浓度提高了近 5倍。     

非织造布发展与企业战略

介绍了非织造布行业的发展形势,说明了企业要发展就必须根据市场的发展规律、趋势和动态进行准确的分析和预测,并综合自己的实际情况慎重决策企业的发展战略.     

Riboflavin and health: A review of recent human research

There has lately been a renewed interest in Riboflavin owing to insight into its recognition as an essential component of cellular biochemistry. The knowledge of the mechanisms and regulation of intestinal absorption of riboflavin and its health implications has significantly been expanded in recent years. The purpose of this review is to provide an overview of the importance of riboflavin, its absorption and metabolism in health and diseased conditions, its deficiency and its association with various health diseases, and metabolic disorders. Efforts have been made to review the available information in literature on the relationship between riboflavin and various clinical abnormalities. The role of riboflavin has also been dealt in the prevention of a wide array of health diseases like migraine, anemia, cancer, hyperglycemia, hypertension, diabetes mellitus, and oxidative stress directly or indirectly. The riboflavin deficiency has profound effect on iron absorption, metabolism of tryptophan, mitochondrial dysfunction, gastrointestinal tract, brain dysfunction, and metabolism of other vitamins as well as is associated with skin disorders. Toxicological and photosensitizing properties of riboflavin make it suitable for biological use, such as virus inactivation, excellent photosensitizer, and promising adjuvant in chemo radiotherapy in cancer treatment. A number of recent studies have indicated and highlighted the cellular processes and biological effects associated with riboflavin supplementation in metabolic diseases. Overall, a deeper understanding of these emerging roles of riboflavin intake is essential to design better therapies for future.     

福建家具自营商场的经营现状与发展对策分析

文章从福建家具自营商场观状出发,从成本控制、定价机制、员工管理与激励、树立品牌等角度,探讨福建家具自营商场的发展策略.由于自营商场的复杂性,其实际操作可行性有待区分与验证.     

河北省皮革产业发展战略探讨

构建河北省皮革产业发展的SWOT矩阵,借助结构模型解析法,通过建立邻接矩阵、可达矩阵、绘制多级递阶结构图等步骤,将产业链协同发展战略、国际化发展战略、可持续发展战略、产业结构调整战略、密集式增长战略、科技创新发展战略和品牌化发展战略这7大发展战略划分为四个层次,提出实现河北省皮革产业持续健康发展的战略决策。     

荧光液相色谱法测定强化面粉中维生素B1、B2和B11

建立了测定强化面粉中微量维生素B1、B2和B11的荧光液相色谱方法。用Nova—pack C18柱,以甲醇-0．05Mol／L乙酸钠溶液(35：65,pH4．5)为流动相,不同的荧光波长下检测维生素B1、B2和B11。在各自的浓度范围内,三种维生素的浓度与峰面积有良好的线性关系,维生素B1、B2和B11的检测限分别为0．3ng／kg、0．3ng／kg和1．5ng／kg。该法具有操作简单、灵敏度高等特点。     

Riboflavin in Asian noodles: The impact of processing,storage and the efficacy of fortification of three product styles

Asian noodle products are a staple food in many countries, representing the end-use of approximately one eighth of all wheat produced globally. Relatively little has been published on the contribution of Asian noodles to dietary intakes of essential nutrients including the B group vitamins. Therefore, the aim of this study has been to investigate the factors influencing the retention of riboflavin in these products. The three most common styles of Asian noodles (white salted, yellow alkaline and instant) have been prepared under controlled laboratory conditions and riboflavin contents measured at each stage of processing. The stability varied markedly between the different styles with losses occurring at each step. Declines ranging from 27% to 38% of the initial riboflavin levels were found in fortified noodles prior to cooking. During boiling at the optimum temperature, further decreases occurred resulting in overall losses of 52–74% of the amounts incorporated into the various formulations. The presence of alkaline salts as ingredients appeared to be the primary factor influencing the extent of losses in the three styles. White salted and instant Asian noodles are effective vehicles for enhancing dietary intakes of riboflavin.     

浅谈监狱服装生产发展战略

文章通过分析国内外服装生产现状、发展趋势及监狱服装劳务加工生产模式,引出了平衡生产线、现代化服装质量管理等方法以改革服装生产模式,结合监狱服装生产的特殊性,有针对性地提出了监狱服装生产发展战略的建议。