Nutrition composition of sweet potatoes of different colors
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摘要: 对桔红色、黄色、紫色3种肉色甘薯品种的营养成分进行系统分析和比较。结果显示,不同肉色甘薯的维生素C、β-胡萝卜素、蛋白质、碳水化合物、铜、铁、锰、镁含量存在极显著差异,锌、钙含量存在显著差异,其他营养成分差异不显著。桔红色甘薯β-胡萝卜素的含量显著高于其他两种类型,而碳水化合物含量相对较低;黄色甘薯中的锌含量介于桔红色甘薯和紫色甘薯之间;紫色甘薯蛋白质、锌、铁、锰、镁、钙的含量均显著高于黄色、红色甘薯,但维生素C含量较低。Abstract: The nutrition composition of sweet potatoes with different colors was analyzed.The results showed significant differences among three types of sweet potatoes in the contents of vitamin C,β-carotene,protein,carbohydrate,Cu,Fe,Mn,Mg,Zn and Ca.The orange-colored sweet potatoes had the highest level of β-carotene,and the lowest carbohydrate and Zn contents.The purple sweet potatoes were rich in protein,Zn,Fe,Mn,Mg and Ca,but poor in vitamin C.The sweet potatoes with yellow flesh had a Zn content between those with orange-and purple-colored flesh.
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Key words:
- Sweet potato /
- flesh color /
- nutrition composition
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[1] LU GUO-QUAN,HUANG HUA-HONG,ZHANG DA-PEN.Application of near-infrared spectroscopy to predict sweetpotato starch thermal propertles and noodle quality[J].Journal of Zhejiang University-Science B,2006,7(6):475-481. [2] 宋永康,余华,姚清华,等.不同肉色甘薯蛋白质营养价值评估[J].福建农业学报,2009,24(6):504-507.
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