Analysis and comparison of nutritional compositions in Xinjiang turnip(Brassica rapa L.)

To fully understand edible value of Xinjiang turnip,13 species of Xinjiang producing area were selected to examine the nutrient composition. This research provided basis for the development and utilization of Xinjiang turnip resources and could enhance the added value. The content of amino acid,crude protein,Ca,Mg,and other mineral elements of 13 Xinjiang turnip species were detected by high performance liquid chromatography(HPLC) and atomic absorption spectrophotometer(AAS). The results showed that Lukun turnip with the highest levels contents of amino acid(12.32%),protein(2.33%) and mineral element(57488 mg/kg). By comparing nutrient composition of 13 Xinjiang turnip species,Lukun turnip was the best,followed by Keping turnip and Yahua turnip. Xinjiang turnips with high nutritional value,rich in amino acid,protein and mineral elements,had high edible value and great development prospects.