Tannin content in different organs of Punica granatum L.

Summary

The study was carried out to determine the content of tannin in various organs of wild pomegranate (leaves, flowers, fruits) growing in Azerbaijan, with the aim of the possibility of scientific substantiation of its use as a source of raw materials for obtaining tannins used in the food industry and medicine. Analysis of the quantitative content of tannins was carried out according to GOST 19885-74. Significant differences in the quantitative composition of tannins in various samples of wild-growing pomegranate have been established. It has been shown that the highest content of tannins is accumulated in the peel (386.5 mg / l), the lowest -in the juice of wild-growing pomegranate arils (230 mg/l). The tannin content in flowers and leaves of wild pomegranate is 350 mg/l and 330 mg/l, respectively. Considering the predominance of tannins in the peel (386.5 mg/l) and flowers (350 mg/l) of wild-growing pomegranate, and the high biological activity of these substances, the results of our studies allow us to recommend the peel and flowers of this plant as an additional natural source of raw materials for obtaining tannins used in medicine and food industry

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