Investigation of Mineral and Vitamin C Contents in Different Parts of Beetroots (Beta vulgaris L.)
Due to the increasing popularity of today’s health-conscious culture, beetroot plays an increasingly important role in a healthy, varied diet. While it contains vitamins B1, B2, B6, P, as well as high levels of vitamin C, several studies have proven its role in the prevention of many cancers. The aim of this study was to compare morphological properties, dry matter, and vitamin C and minerals contents in the different parts (peel, end, middle and top part of root) of the three investigated beetroot cultivars grown in treated and untreated soil. Fertilizer was added to the treated soil before sowing of the beet seeds, while untreated soil was not treated. The vitamin C contents were measured using HPLC method, while determination of element contents was determined with IPC-OES. The study showed that the beetroots grow in the treated soil had improved morphological properties, but a significant difference was not found. For Vitamin C and element contents (Ca, Cu, Fe, K, Mg, Mn, Na, P, Zn), it was observed a high degree of diversity in the different beetroot parts and between the cultivation years. The aim of the study was to investigate the distribution of the examined parameters within the beetroot body in different beetroot cultivars observing the differences produced by the addition of fertilizer. Some elements were concentrated in the peel and top part such as Ca, Mn and Mg. The peel part of the beetroots contained relevantly higher Fe content than the top, middle and end part. Based on these results, significant differences were observed among the investigated beetroot cultivars regards of the body weight.
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