Screening tests of tannins in overground organs of Zea mays L.

Abstract

Aim. The introduction of new hemostatic drugs is a modern question. Using of tannins is promising especially for this segment of Pharmacy, as they are able to stop the bleeding. The purpose was to the study qualitative composition and quantitative content of tannins in Zea mays leaves and columns with stigmas. Methods and results. The presence of tannins has been found using conventional qualitative reactions. Polyphenols content has been determined by permanganatometry. The qualitative composition and quantitative content of tannins in herbal drugs has been determined by high performance liquid chromatography. The presence of tannins mostly of condensed group has been determined. Accumulation of polyphenols in leaves of sweet and super sweet corn has been determined by permanganatometry. The highest content of polyphenols in the columns with stigmas has been found in super sweet corn. The presence of 8 compounds has been determined in the leaves and corn stigmas by high performance liquid chromatography: gallic acid, ellagic acid, galocatehin, epicatechin, catechin, epigalocatehin, catechin gallate, epicatechin gallate. Conclusions. This demonstrates the rich polyphenolic composition of raw material of Zea mays and possibility to use it for the creation of drugs and specialty foods.

Keywords

• Zea Mays L
• Tannins
• High Pressure Liquid Chromatography