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. 2022 Jan 13;11(2):216.
doi: 10.3390/foods11020216.

Concentration of Pro-Health Compound of Sorghum Grain-Based Foods

Jakub Frankowski  1 , Anna Przybylska-Balcerek  2 , Kinga Stuper-Szablewska  2
Affiliations

Concentration of Pro-Health Compound of Sorghum Grain-Based Foods

Jakub Frankowski et al. Foods. .

Abstract

More than 35% of the world sorghum seed production is a human food source. The main ingredient of fully ripe sorghum grains is starch. Sorghum does not contain gluten, and it is also a rich source of antioxidant compounds other than vitamins or macro- and microelements, including phenolic acids, flavonoids, and sterols. The aim of this study was to determine the antioxidant activity and the content of selected bioactive compounds, i.e., total phenolic acids, total flavonoids, and total phytosterols, as well as determination of the qualitative and quantitative profile of phenolic acids, flavonoids, and phytosterols in various food products, the basic ingredient of which was sorghum grain. It was found that antioxidant activity is related to the total phenolic compounds content. The ABTS•+ ranged from 319 to 885 µmol TROLOX/kg. However, white sorghum grain flour contained almost two times more polyphenols than red sorghum grain flour. The FPA ranged from 224 in raw pasta to 689 mgGAE/100 g in white sorghum grain. During this study, the quantitative profile of selected polyphenols in grain flour, wafers, pasta, and cookies containing sorghum grain was also investigated, as well as the content of 11 selected phenolic acids. Total content of the latter ranged from 445 to 2850 mg/kg. Phytosterols such as beta-sitosterol, campesterol, and stigmasterol were found in all the analyzed products. Based on this research, it was investigated that the products containing sorghum grains can be classified as functional food.

Keywords: bioactive compounds; flavonoids; functional food; phenolic acids; phenolic compounds; phytosterols; sorghum.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Bioactive compounds in functional food based on sorghum grains.
Figure 2
Figure 2
Structural formulas of selected plant sterols.
See this image and copyright information in PMC

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