红外光谱法确认辽宁三地区苹果中黄烷醇类化合物     

侯冬岩  回瑞华  关崇新  王婧楠 《鞍山师范学院学报》2001,3(1):91-94

黄烷醇基本结构为C6·C3·C6型化合物 ,具有一定的抗癌活性 .其衍生形成的多酚类化合物对人体具有较强的抗衰老作用 ,它广泛存在于各种水果及一些植物中 .本文利用红外光谱法对辽宁三地区不同种类苹果的提取物进行了分析、比较 ,结果是辽南地区的苹果黄烷醇类化合物的含量少于辽西地区的苹果黄烷醇类化合物的含量 ,富士苹果的黄烷醇类化合物的含量高于国光苹果的黄烷醇类化合物的含量 ,为进一步研究开发提供了依据  相似文献   

Linking Life and Literature in Early Childhood Settings     

Pauline Davey Zeece 《Early Childhood Education Journal》2008,35(6):565-569

Using an example of a toddler’s developing understanding of an apple, this article illustrates how children integrate all elements in their interpersonal and built environments to support their emerging literacy skills. Otto (2007) and others provide evidence from emergent literacy research that documents observations and exploration by infants, toddlers, and young children and suggest that the ways in which children participate in early literature-related activities influence the knowledge they construct. Twenty-two children’s books—including five for apple discoverers—are recommended and reviewed.  相似文献   

Prediction of valid acidity in intact apples with Fourier transform near infrared spectroscopy     

刘燕德  应义斌  傅霞萍 《Journal of Zhejiang University. Science. B》2005,(3)

INTRODUCTION Consumers’ acceptance of fresh or processedapples is the ultimate goal of apple breeders, foodscientists and supermarket managers. Internal qualityassessment has focused on two major objectives:removal of fruit with internal defects and taste selec-tion. Three major parameters including sugar content,acidity and firmness have to be taken into account todetermine the internal quality and the taste of an apple.Near infrared spectroscopy has been used to measureseveral properti…  相似文献