不同产地苹果营养成分的测定及分析

本课题选取运城本地红富士、嘎啦、新红星、金帅四个品种，山西运城、陕西洛川、山东烟台、甘肃平凉、新疆阿克苏、江苏丰县、云南昭通七个地区红富士苹果，对其进行营养成分的测定。分别用直接干燥法、直接滴定法、2,6-二氯靛酚滴定法、福林比色法、干法灰化法、滴定法，测定水分、还原糖、总糖、抗坏血酸、总酚、灰分、总酸七大营养素含量。通过实验数据可知，不同产地的红富士苹果中，产地在江苏丰县的苹果水分含量最高，产地在云南昭通的还原糖含量最高，产地在新疆阿克苏的总糖含量最高，产地在江苏丰县的抗坏血酸含量最高，产地在云南昭通的总酚含量最高，产地在山西运城的灰分含量最高,产地在新疆阿克苏的总酸含量最高。运城四个品种苹果营养成分含量也各不相同，其中水分和灰分含量最高的是红富士，还原糖和总糖含量最高的是红星，抗坏血酸、总酸含量最高的是嘎啦，总酚含量最高的是红星。

关键词：不同产地；苹果；营养成分

TheNutritional Components Determination And Analysis of Apple in Different Areas
 

Abstract: This paper takes four varieties of apple-Yuncheng local red Fuji, Gala, Starkrimson, Jinshuai, and identifies the nutritional components of the red apple in seven districts –Yuncheng Shanxi , Luochuan Shanxi , Yantai Shandong , Pingliang Gansu,  Akesu Xinjiang, Fengxian Jiangsu , Zhaotong Yunnan. The content of seven nutrients , water, reducing sugar, total sugar, ascorbic acid, total phenols, ash, total acid, were determined by six kinds of method - direct drying method, direct titration, 2,6- two chloro phenol titration, Folin colorimetric method, dry ashing method and titration method. As is showed in the data of the experiment,among the Fuji red apple from different origins ,the highestwater content in apples from FengxianJiangsu, the highest reducing suger content from Zhaotong Yunnan, the highest total suger from Akesu Xinjiang, the highest ascorbic acid content from Fengxian Jiangsu, the highest total phenol from Zhaotong Yunnan,the highest ash content from Yuncheng Shanxi, the highest total acid from Akesu Xingjiang .The nutrition component content also varies among the four sorts of apples in Yuncheng Shanxi: red Fuji has the highest content of water and ash, Starkrimson has the highest content of reducing sugar and total sugar, Gala has the highest content of ascorbic acid and total acid,Starkrimson has the highest content of the total phenol .   

Key words:different origins; apple; nutritional composition

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