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The purpose of research is to study the antioxidant activity of cookies with the addition of Sorghum bicolor whole grain flour to determine the prospects for using flour in the production technology of flour confectionery products. The objects of the study are samples of butter cookies prepared according to the traditional recipe (control) and with the replacement of premium wheat flour with whole-grain sorghum flour (experimental). The quality indicators of the samples were assessed according to generally accepted test methods. Phenolic acids in the biscuit samples were analyzed using high performance liquid chromatography combined with a High Performance Liquid mass spectrometer. Aqueous extracts of cookie samples were obtained as follows: 10 g of experimental and control samples were extracted in 150 ml of distilled deionized water for 90 min with constant stirring. The mixture was then centrifuged at 8000 rpm at 20 °C for 30 min, followed by collection of the clear supernatant. Next, the resulting supernatant was freeze-dried at minus 15 °C. According to the organoleptic characteristics, the cookie samples with the addition of whole-grain sorghum flour had a dark brown color uniform throughout the mass, the taste and aroma were sweet with a hint of vanilla, the broken appearance was well-baked, with a uniform porous structure, without cavities and signs of insufficient mixing, slightly rough surface. Physico-chemical parameters met the standards. As a result of the analysis of chromatographic peaks, phenolic acids were identified and the presence of phenolic acids, which are strong antioxidants, was proven in the experimental cookie sample. The practical significance lies in the application of the obtained data in the development of flour confectionery products with whole-grain sorghum flour.
The purpose of research is to study the antioxidant activity of cookies with the addition of Sorghum bicolor whole grain flour to determine the prospects for using flour in the production technology of flour confectionery products. The objects of the study are samples of butter cookies prepared according to the traditional recipe (control) and with the replacement of premium wheat flour with whole-grain sorghum flour (experimental). The quality indicators of the samples were assessed according to generally accepted test methods. Phenolic acids in the biscuit samples were analyzed using high performance liquid chromatography combined with a High Performance Liquid mass spectrometer. Aqueous extracts of cookie samples were obtained as follows: 10 g of experimental and control samples were extracted in 150 ml of distilled deionized water for 90 min with constant stirring. The mixture was then centrifuged at 8000 rpm at 20 °C for 30 min, followed by collection of the clear supernatant. Next, the resulting supernatant was freeze-dried at minus 15 °C. According to the organoleptic characteristics, the cookie samples with the addition of whole-grain sorghum flour had a dark brown color uniform throughout the mass, the taste and aroma were sweet with a hint of vanilla, the broken appearance was well-baked, with a uniform porous structure, without cavities and signs of insufficient mixing, slightly rough surface. Physico-chemical parameters met the standards. As a result of the analysis of chromatographic peaks, phenolic acids were identified and the presence of phenolic acids, which are strong antioxidants, was proven in the experimental cookie sample. The practical significance lies in the application of the obtained data in the development of flour confectionery products with whole-grain sorghum flour.
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