还有花白素及由儿茶素聚合形成的原花色素(proanthocyanidins),酸性条件下两类物质可部分转化为花青素。自然条件下，游离的花青素主要以糖苷形式存在，花青素与葡萄糖鼠李糖、半乳糖、阿拉伯糖等...

AbstractWith the rapid development of time,each industry is constantly developing thecurrent cutting-edge technology,using this new technology to enhance their own leveland strengt...

melts at 720.9.XRD shows that KBr crystal belongs to cubic system and Fm3m space group.The transmission spectrum of KBr crystal has been tested,and the transmittance is greater tha...

一个完整合理的采购谈判流程简单来说主要包括3个阶段。首先，是制订谈判计划。其次，要在合适的时间与供应商进行正式谈判。最后，是谈判后的总结与提升。六、采购合同管理采购合同的管理应当做...

Study on the preparation technology of the mix Hericium erinaceus withApple enzymeAbstract:In this paper,with Hericium erinaceus and apple as the main raw materials,with lactic aci...

2小学生体能训练评估的现状体能训练评估方法却较为滞后，己有提出的军事训练完整的评价体系，以及跆拳道专业运动员的体能训练评估。但是小学生的体能训练评估体系，研究的学者较少，在付博闻学...

金属卟啉醋酸钴复合催化对二甲苯氧化制备对苯二甲酸的反应、机理、动力学研究通过实验数据回归确定了模型参数。我们的动力学模型可以很好的解释实验现象，并从动力学方面证明了金属卟啉在催化对...

AbstractXXXXXXX硕士学位论文AbstractChina is one of the countries with the largest number of detainees in the world.The series of problems after prisoners return to society has alwa...

The preliminary study on the influence factors of extraction methods andcontent of Flavones and Polysaccharide in Moringa OleiferaAbstractAim to stabilize and improve the products ...

北京理工大学珠海学院2020届毕业生设计Preliminary Design and Simulation Optimization of DistillationSection with Annual Output of 20,000 Tons of Acetic AnhydrideAbstractFor a long ti...