№2, 2020
Composition and content of anthocyans of pomegranate fruits
Summary
The work is devoted to the study of the composition of anthocyanins of the "Gulovsha" variety cultivated in the village of Bygyr, Goychay region of the Republic of Azerbaijan. For this purpose, a study of the quantitative content and qualitative composition of anthocyanins of various parts of the fetus was carried out using chromatography and spectral methods. The qualitative composition of the sum of anthocyanins was established by the method of one- and two-dimensional paper chromatography, the optical density was measured on a KFK-2 photoelectric colorimeter. It was revealed that different parts of the fruit not only differ in quality composition, but also in the content of individual components. In the sum of anthocyanins from in the peel extract of the fruit, 3 was found, in the juice and seed coat 4, and in the whole fruit 6 components. The predominance of pelargonidin derivatives in the peel and delphinidin derivatives in pomegranate fruit juice was established. From the sum of fruit anthocyanins, 5 individual anthocyanins were isolated by preparative chromatography, which, based on the results of chromatographic and spectral data, as well as a comparison of the products of complete and partial hydrolysis with literature data, were identified as delphinidin3-glucoside, delphinidin-3,5-diglucoside, cyanidin- 3-glucoside, cyanidin-3,5-diglucoside, pelargonidin-3-glucoside, pelargonidin-3,5-diglucoside.