Bioactive Compounds and Total Sugar Contents of Different Open-Pollinated Beetroot Genotypes Grown Organically

Abstract

The growing interest of consumers in healthy organic products has increased the attention to the organic production of beetroot. In this regard, six field experiments were conducted in 2017 and 2018 in three different locations under the specific conditions of organic agriculture, and fifteen beetroot genotypes, including one F1 hybrid as a commercial control and one breeding line, were compared regarding the content of the total dry matter, total soluble sugar, nitrate, betalain, and total phenolic compounds in order to investigate the genetic potential of new and existing open-pollinated genotypes of beetroot regarding the content of their bioactive compounds. The results of this study indicated a significant impact of genotype (p < 0.05) on all measured compounds. Furthermore, results revealed a significant influence of the interactions of location × year (p < 0.05) on the beetroot composition, and, thus, the role of environmental conditions for the formation of tested compounds. The total dry matter content (TDMC) of beetroots varied between 14.12% and 17.50%. The genotype ‘Nochowski’, which possessed the highest total soluble sugar content with 14.67 °Bx (Brix), was among the genotypes with the lowest nitrate content. On the contrary, the cylindrical-shaped genotype ‘Carillon RZ’ (Rijk Zwaan), indicated the lowest sugar content and the highest nitrate concentration. The amount of total phenolic compounds ranged between 352.46 ± 28.24 mg GAE 100 g−1 DW (milligrams of gallic acid equivalents per 100 g of dry weight) and 489.06 ± 28.24 mg GAE 100 g−1 DW for the red-colored genotypes which is correlated with the high antioxidant capacity of the investigated genotypes. Due to the specifics of the required content of bioactive compounds for various products, the selection of suitable genotypes should be aligned with the intended final utilization.

Biochemical and Mineral Evaluation of Four Exotic Beetroot Varieties Grown in Bangladesh

“…According to the literature, the amounts of dry matter widely from 8.80-11.0% (Yasaminshirazi et al, 2020). DM% varies depending on variety, cultivation method and year, as well as the part of the plant (Yasaminshirazi et al, 2020). The findings of the present study suggest that genotype differences significantly influenced the dry matter amount of the tested samples.…”

“…One of the most relevant components of raw vegetables is dry matter. Its amount varies depending on variety, cultivation method and year, as well as the part of the plant (Yasaminshirazi et al, 2020). The findings of the present study suggest that pH level differs from range 5.52-6.51, where 'Chioggia' is less acidic (6.51), while, Detroit Dark Red is more acidic (5.52) compared to other varieties.…”

“…Dry matter content is one of the most relevant components of raw vegetables. According to the literature, the amounts of dry matter widely from 8.80-11.0% (Yasaminshirazi et al, 2020). DM% varies depending on variety, cultivation method and year, as well as the part of the plant (Yasaminshirazi et al, 2020).…”

Thermal emerging technology approach for the extraction of bioactive compounds from Cylindra beetroot (peel, flesh, and stalk) with green solvent

“…Aside from the whole taproot, foliage/leaf, stalk, and peel contain comparable amounts of nutrients and bioactive compounds. Like the other suppliers of dietary nitrate, beetroots are loaded with a chief source of inorganic nitrate (250 mg·kg −1 of fresh weight); hence its application for the enhanced performance of nitric oxide in the blood circulation, along the line, reducing the nitric oxide deficiency‐related diseases is one of its many benefits (Clifford et al, 2015; Yasaminshirazi et al, 2020). Aside from the other bioactive compounds such as ascorbic acid, carotenoids, phenolic acids, and flavonoids, the content of betalain pigment is of most importance in red beetroots.…”

Characterization of Cylindra Beetroot Wastes Volarized With Green Solvent by Thermal Emerging Technology (Microwave Irradiation)

“…Like the other suppliers of dietary nitrate, beetroots are loaded with a chief source of inorganic nitrate (250 mg•kg -1 of fresh weight). Hence its application for the enhanced performance of nitric oxide in the blood circulation, along the line, reducing the nitric oxide deficiency-related diseases is one of its many benefits [13,14]. Apart from the other bioactive compounds such as ascorbic acid, carotenoids, phenolic acids and flavonoids, the content of betalain pigment is of most important in red beetroots.…”