Comparative study on nutrient composition and antioxidant capacity of potato based on geographical and climatic factors  

作　　者：Bing Zhang Ayesha Murtaza Aamir Iqbal Jiao Zhang Tingting Bai Wanlu Ma Xiaoyun Xu Siyi Pan Wanfeng Hu 

机构地区：[1]College of Food Science and Technology,Huazhong Agricultural University,No.1,Shizishan Street,Hongshan District,Wuhan,430070,China [2]Key Laboratory of Environment Correlative Dietology,Huazhong Agricultural University,Ministry of Education,Wuhan,430070,China [3]College of Agriculture and Life Sciences,Cornell University,Ithaca,NY,United States

出　　处：《Food Bioscience》2022年第2期375-385,共11页食品生物科学（英文）

基　　金：This work was supported by the Fundamental Research Funds for the Central Universities(2662018JC018,2662020SPPY012);the National Natural Science Foundation of China(31401507);a Hubei Province Technical Innovation Special Major Project(2018ABA072);the National Key Research and Development Program(2017YFD0400701-2).

摘　　要：Potatoes are consumed in the human diet,but the environmental effects on the nutrient content of their tubers are not known.Five potato varieties from China(Chongqing,Dingxi,Qiqihar,Enshi,and Ulanqab)were selected to compare their nutritional components and antioxidant capacity and to explore the correlation between nutrition and local rainfall,humidity,temperature,and light time.The results indicated the Qiqihar cultivar presents significantly higher antioxidant capacity,and has the most elevated protein and soluble sugar contents.The total phenol(TPC)(325.07μg/g)and carotenoid contents(54.93μg/100g)of the Ulanqab cultivar were the highest.The Dingxi cultivar reveals the highest total flavonoids(TFC)(168.94μg/g),K,Mg,and P contents.The ascorbic acid content(26.09 mg/100g)was the highest in the Chongqing cultivar,and the contents of starch,Ca,total acid,and water were also prominent.The amino acid content(7.350%)in the Enshi cultivar is higher.It was found that soluble sugar was significantly correlated with humidity,temperature,and light time;carotenoids were affected considerably by rainfall;ascorbic acid has a strong correlation with temperature;TPC was moderately associated with humidity and light time.To summarize,tubers’nutrient composition and antioxidant capacity vary with geographical location and climate of origin.This study will help provide a theoretical basis for selecting geographical areas for potato planting and exploring the complex interactive factors between environment and vegetable attributes.

关 键 词：POTATO CULTIVAR REGIONS Nutritional component Antioxidant capacity 

分 类 号：O62[理学—有机化学]