A Study of the chemical composition of the essential oil of Minthostachys mollis (Kunth) Griseb, has been done by means of chromatographic and spectronic methods, in order to determine the composition according to the place of selling. We found the following: in the essential oil from Tarma (Junín, región A. A. Cáceres): l-tetradecene (23,14%), 2S-transmenthona (23,00%) and pulegone (13,21%), in the essential oil from Huaraz (Ancash. Región Chavín): 2S-trans-menthona (41,48%), pulegone (16,02%), y - terpinen (7,55%) and in case of essential oil from Pampas (Huancavelica, región Los Libertadores Wari): 2S-trans-menthona (34,51 %), pulegone (28,62%), and nerolidol (5,08%).

The leaves of Lupinus C.P. Smith were colected from the highlands in Lima, it contains among other 5 flavonoids and 5 alkaloids.The flavonoid genistein was characterized by means of visible-UV spectroscopy, observing the bathochromic and hipsochomic movements of the spectra with sodium methoxide, aluminuin chloride, boric acid and sodium acetate reagents.The IR spectrum reveals the presence of the alkaloid lupenin or hydroxylupenin.Both the flavonoid and the alkaloid show a strong antibacterial activity and the alkaloid shows in addition of this property an antifungic activity.

Los rizomas de Curcuma longa recolectados en la localidad de Pucallpa por extracción etanólica en frío, producen por lo menos tres curcuminoides coloreados estimados mediante cromatografía en capa fina y cromatografía líquida de alta performance HPLC (Fig. 1). Cada colorante ha sido aislado mediante cromatografía en columna y las estructuras analizadas por espectroscopía IR (Fig. 2). El modelo de estructura de la curcumina y los curcuminoides similar a los carotenoides hace suponer que las insaturaciones pueden absorber oxígeno y radicales libres, además de implicar un mecanismo antiinflamatorio (Fig. 3).En conexión con los trabajos de MISRA y col (1972) acerca de la comparación de la actividad antiradicálica de la enzima superóxido dismutasa correlacionada con la oxidación o autooxidación de la epinefrina; y el trabajo de SREEJAYAN y col (1997) que utiliza el óxido nít...

A Study of the chemical composition of the essential oil of Minthostachys mollis (Kunth) Griseb, has been done by means of chromatographic and spectronic methods, in order to determine the composition according to the place of selling. We found the following: in the essential oil from Tarma (Junín, región A. A. Cáceres): l-tetradecene (23,14%), 2S-transmenthona (23,00%) and pulegone (13,21%), in the essential oil from Huaraz (Ancash. Región Chavín): 2S-trans-menthona (41,48%), pulegone (16,02%), y - terpinen (7,55%) and in case of essential oil from Pampas (Huancavelica, región Los Libertadores Wari): 2S-trans-menthona (34,51 %), pulegone (28,62%), and nerolidol (5,08%).

The leaves of Lupinus C.P. Smith were colected from the highlands in Lima, it contains among other 5 flavonoids and 5 alkaloids.The flavonoid genistein was characterized by means of visible-UV spectroscopy, observing the bathochromic and hipsochomic movements of the spectra with sodium methoxide, aluminuin chloride, boric acid and sodium acetate reagents.The IR spectrum reveals the presence of the alkaloid lupenin or hydroxylupenin.Both the flavonoid and the alkaloid show a strong antibacterial activity and the alkaloid shows in addition of this property an antifungic activity.

Los rizomas de Curcuma longa recolectados en la localidad de Pucallpa por extracción etanólica en frío, producen por lo menos tres curcuminoides coloreados estimados mediante cromatografía en capa fina y cromatografía líquida de alta performance HPLC (Fig. 1). Cada colorante ha sido aislado mediante cromatografía en columna y las estructuras analizadas por espectroscopía IR (Fig. 2). El modelo de estructura de la curcumina y los curcuminoides similar a los carotenoides hace suponer que las insaturaciones pueden absorber oxígeno y radicales libres, además de implicar un mecanismo antiinflamatorio (Fig. 3).En conexión con los trabajos de MISRA y col (1972) acerca de la comparación de la actividad antiradicálica de la enzima superóxido dismutasa correlacionada con la oxidación o autooxidación de la epinefrina; y el trabajo de SREEJAYAN y col (1997) que utiliza el óxido nít...

Edible films for packaging and plastic material replacement purposes are produced based on biodegradable raw materials such as polysaccharides and agents with biological properties, making the final product an alternative for the protection and extension of the shelf life of foods. The main objective of the present research was to evaluate the antioxidant and antimicrobial activity of chitosan biofilms functionalized with muña essential oil. For this purpose, 12 edible films were formulated with 3 concentrations of chitosan (1, 2 and 3%) and 3 of essential oil (0.5, 2 and 5%) including chitosan-only blanks. The antioxidant activity evaluated in biofilms with a higher content of muña essential oil presents more than 60% of DPPH free radical uptake, while in the antimicrobial activity evaluated by petri dishes grown with Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli...