This article is written to examine the newest circumstances and characteristics in the pregnancy women targeted toothpaste market.Among the marketed toothpaste for pregnant women,the main functions of basic products a...This article is written to examine the newest circumstances and characteristics in the pregnancy women targeted toothpaste market.Among the marketed toothpaste for pregnant women,the main functions of basic products are to clean teeth and freshen breath.The main functions of functional products are to prevent and reduce oral inflammation,balance the oral acid-alkali environment,reduce dental acid corrosion and caries,inhibit the growth of harmful bacteria in the oral cavity,and alleviate the pain of pregnancy and vomiting.On the basis of summarizing the oral characteristics and nursing needs of pregnant women,the problems that should be paid attention to in safety and formula design in the next step of development of toothpaste for pregnant women were put forward.展开更多
文摘为阐明香蕉片微波真空干燥过程的水分扩散机制,开展其在不同微波功率(1250、2500 W)和切片厚度(4、6、8 mm)条件下的干燥动力学模型及水分迁移规律研究。结果表明,香蕉片的微波真空干燥过程中存在加速、恒速和减速3个阶段,微波功率对干燥速率及水分扩散系数的影响比切片厚度更显著。4种干燥模型的拟合效果由高到低顺序为Midilli>Page>Logarithmic>Wang and Singh,经过验证,Midilli模型可准确的描述和预测香蕉片微波真空干燥中的含水量变化(R^(2)=0.9994,χ^(2)=8.00×10^(-5),RMSE=0.0075)。低场核磁共振结果表明,香蕉片在微波真空干燥初期,自由水被脱除的同时,部分不易流动水转化为自由水;随着干燥的进行,自由水与不易流动水逐渐被脱除。低场核磁共振成像显示,香蕉片微波真空干燥的水分扩散是从中心位置向外进行,并且在干燥中后期,最外侧的水分也逐步扩散,直至干燥完成。研究结果为优化香蕉片微波真空干燥的加工提供理论参考。
文摘This article is written to examine the newest circumstances and characteristics in the pregnancy women targeted toothpaste market.Among the marketed toothpaste for pregnant women,the main functions of basic products are to clean teeth and freshen breath.The main functions of functional products are to prevent and reduce oral inflammation,balance the oral acid-alkali environment,reduce dental acid corrosion and caries,inhibit the growth of harmful bacteria in the oral cavity,and alleviate the pain of pregnancy and vomiting.On the basis of summarizing the oral characteristics and nursing needs of pregnant women,the problems that should be paid attention to in safety and formula design in the next step of development of toothpaste for pregnant women were put forward.
