Determination of differences of ascorbic acid, sucrose and metals in potatoes, tomatoes and peppers in open fields and in greenhouses cultivated in two Kosovo’s regions

Session

Agriculture, Food Science and Technology

Description

Intensity of food cultivation plays role on quantity and quality of nutrition content. To increase accuracy on nutrition intake is important to know the differences on nutrition content of vegetables cultivated in different areas and environments. The purpose of this research is to compare vegetables cultivated in two Kosovo regions, and those grown in greenhouses and on open fields, by measuring the amount of sucrose, ascorbic acid and metals. To determine those values we used Brix (0Bx) method and direct titration method and atomic absorption spectrophotometry (AAS). The results shows that values of sucrose in tomatoes is approximately the same, non significante difference, in both regions. In peppers the value of sucrose in the open field is higher in Anamorava region by + 4.1 0Bx (Brix degree) comparing with Dukagjini region, and in the greenhouse Anamorava region is smaller -2.1 0Bx comparing with Dukagjini region (6.6 0Bx). While the brix degree (0Bx ) in potatoes on open field in Anamorava region is 2.6 0Bx higher than in Dukagjini region (4.4 0Bx). The value of ascorbic acid in tomatoes and peppers on the open field and in greenhouses in two regions are not significante. The imported potatoes compared with those cultivated in Dukagjini region have higher values of ascorbic acid for 34.95 mg, while the value of ascorbic acid of the imported peppers is for 221.883 mg higher than in Dukagjini region. The imported tomatoes have higher values, in ppm, of metals such are Ca (+6.12), Mg (+1.99), Zn (+0.27) and Fe, B, Pb, Mn and Cr comparing with cultivated ones in Kosovo, beside the Ni that has higher values for about 0.003. Peppers cultivated in Kosovo have higher values, in ppm, for Mg , Zn, Fe, Ni, B and Cr, and lower values for Ca, Cu, Pb and Mn, compared with imported ones. The results shows that such research are further needed to make a clear cut and increase accuracy effects of different intensity of cultivation methods and input applications on the quantity and quality of nutrients.

Keywords:

vegetables, cultivation, environments, nutrients

Session Chair

Flutura Ajazi

Session Co-Chair

Imri Demelezi

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-550-19-2

Location

Pristina, Kosovo

Start Date

26-10-2019 3:30 PM

End Date

26-10-2019 5:00 PM

DOI

10.33107/ubt-ic.2019.416

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Oct 26th, 3:30 PM Oct 26th, 5:00 PM

Determination of differences of ascorbic acid, sucrose and metals in potatoes, tomatoes and peppers in open fields and in greenhouses cultivated in two Kosovo’s regions

Pristina, Kosovo

Intensity of food cultivation plays role on quantity and quality of nutrition content. To increase accuracy on nutrition intake is important to know the differences on nutrition content of vegetables cultivated in different areas and environments. The purpose of this research is to compare vegetables cultivated in two Kosovo regions, and those grown in greenhouses and on open fields, by measuring the amount of sucrose, ascorbic acid and metals. To determine those values we used Brix (0Bx) method and direct titration method and atomic absorption spectrophotometry (AAS). The results shows that values of sucrose in tomatoes is approximately the same, non significante difference, in both regions. In peppers the value of sucrose in the open field is higher in Anamorava region by + 4.1 0Bx (Brix degree) comparing with Dukagjini region, and in the greenhouse Anamorava region is smaller -2.1 0Bx comparing with Dukagjini region (6.6 0Bx). While the brix degree (0Bx ) in potatoes on open field in Anamorava region is 2.6 0Bx higher than in Dukagjini region (4.4 0Bx). The value of ascorbic acid in tomatoes and peppers on the open field and in greenhouses in two regions are not significante. The imported potatoes compared with those cultivated in Dukagjini region have higher values of ascorbic acid for 34.95 mg, while the value of ascorbic acid of the imported peppers is for 221.883 mg higher than in Dukagjini region. The imported tomatoes have higher values, in ppm, of metals such are Ca (+6.12), Mg (+1.99), Zn (+0.27) and Fe, B, Pb, Mn and Cr comparing with cultivated ones in Kosovo, beside the Ni that has higher values for about 0.003. Peppers cultivated in Kosovo have higher values, in ppm, for Mg , Zn, Fe, Ni, B and Cr, and lower values for Ca, Cu, Pb and Mn, compared with imported ones. The results shows that such research are further needed to make a clear cut and increase accuracy effects of different intensity of cultivation methods and input applications on the quantity and quality of nutrients.