In researching the Gentianella thyrsoidea (root, stem, flower) were isolated 3-0I-1,5,8-0H xanthone (Bellídifolina) 1 and 1,8-0H-3,5-0I xanthone (Swerchirina 2) . The structures were elucidated by spectroscopic methods (UV, 1H-NMR, NMR13C, DEPT, MS).

En la investigación de la Gentianella thyrsoidea (raíz, tallo, flores) se aislaron 3-0Me- 1 ,5,8-0H xantona (Bellídifolina)1, y 1,8-0H-3,5-0Me xantona (Swerchirina)2. Las estructuras fueron elucidadas por métodos espectroscópicos (UV, NMR-1H, NMR13C, DEPT, EM).

The analysis of Phtyrusa pyrifolia by methods AOAC showed the presence of steroids, phenols, tanines, cumarines and flavonoids, calcium, phosphorus, magnesium, coopper, kalium and iron.

The analysis of Phtyrusa pyrifolia by methods AOAC showed the presence of steroids, phenols, tanines, cumarines and flavonoids, calcium, phosphorus, magnesium, coopper, kalium and iron.

The presente work has been carried out with the leaves of tha rabanito Rsphanus Sativus L. The presence of tannins ot the catechol and coumarín was determined by qualitative analysis. The quantitative analysis showed the presence of minerals macronutrients: calcium, phosphorus,potasium,sodium and magnesíum; micronutrientes: iron; and traces of copper, aluminum manganese, boron, barium,chromium and zinc. The analysís ot vitamins determined the content on fresh sample of vitaminan A, 81 and C.

The presente work has been carried out with the leaves of tha rabanito Rsphanus Sativus L. The presence of tannins ot the catechol and coumarín was determined by qualitative analysis. The quantitative analysis showed the presence of minerals macronutrients: calcium, phosphorus,potasium,sodium and magnesíum; micronutrientes: iron; and traces of copper, aluminum manganese, boron, barium,chromium and zinc. The analysís ot vitamins determined the content on fresh sample of vitaminan A, 81 and C.