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This study determined some biological compounds (fatty acid compositions, lipid-soluble vitamins, sterols, flavonoids), radical scavenging capacities and antimicrobial activities in the seeds of Nepeta italica L. and Sideritis montana L. subsp. montana. It was found that palmitic acid (C16:0; 8.54±0.13- 3.05±0.04%), oleic acid (C18:1 n9, 22.41±0.8-18.83±0.1%) and α-linolenic acid (C18:3 n3;39.56±0.67-77.04±2.07%) were the dominant fatty acids in both Nepeta italica L. and Sideritis montana L. subsp. montana. It was concluded that both Nepeta italica L. and Sideritis montana L. subsp. montana contained stigmasterol (630.07±1.81µg/g, 80.74±0.71µg/g, respectively) and ergosterol (1.11±0.14µg/g, 161.32±0.63µg/g respectively) as well as beta-sitosterol (2.93±0.03 µg/g). The present findings show that Nepeta italica L. contains morin (37.79±1.09μg/g), catechin (124.39±2.23µg/g), naringin (475.96±3.57µg/g) and Sideritis montana L. subsp. montana contains morin (188.41±2.53µg/g), catechin (64.14±1.86μg/g), naringenin (38.34±1.78μg/g) as major flavonoids. It was also determined that methanol extracts of Nepeta italica L. and Sideritis montana L. subsp. montana were most effective against DPPH radicals. The results of the present study show that the vitamins, flavonoids and fatty acid extracts in the seeds of N. italica L. and S. montana L. subsp. montana prevented the growth of the microorganisms used in the tests at different ratios. Este estudio ha determinado algunos compuestos biológicos (ácidos grasos, vitaminas liposolubles, esteroles y flavonoides), capacidad atrapadora de radicales libres, y actividades antimicrobianas de las semillas de Nepeta italica L. y Sideritis montana L. subsp. montana. Se encontró que el ácido palmítico (C16:0; 8.54±0.13-3.05±0.04%), ácido oleico (C18:1 n9, 22.41±0.8-18.83±0.1%) y α-linolénico (C18:3 n 3;39.56±0.67-77.04±2.07%) eran mayoritarios en ambas semillas de Nepeta italica L. y Sideritis montana L. subsp. montana. Además, se determinó que tanto Nepeta italica L. como Sideritis montana L. subsp. montana contenían estigmasterol (630.07±1.81μg/g; 80,74±0.71μg/g, respectivamente) y ergosterol (11.01±0.14 μg/g; 161.32±0.63 μg/g respectivamente) y esta última además beta-sitosterol (2.93±0.03μg/g). Además, los resultados muestran que Nepeta italica L. contiene morin (37.79±1.09μg/g), catequina (124.39±2.23μg/g) y naringina (475.96±3.57μg/g) y Sideritis montana L. subsp. montana contiene morin (188.41±2.53μg/g), catequina (64.14±1.86μg/g), naringenina (38.34±1.78 μg/g), como principales flavonoides. También, se determinó que los extractos metanólicos de Nepeta itálica L. y Sideritis montana L. subsp. montana fueron eficaces contra los radicales DPPH. Los resultados obtenidos en el presente estudio mostraron que las vitaminas, los flavonoides y los ácidos grasos de los extractos en las semillas de Nepeta itálica L. y Sideritis montana L. subsp. montana impidieron el crecimiento de los microorganismos utilizados en el ensayo, en diferentes proporciones

grasas y aceites

Some Biological Compounds, Radical Scavenging Capacities and Antimicrobial Activities in the seeds of &lt;i&gt;Nepeta italica&lt;/i&gt; L. and &lt;i&gt;Sideritis montana&lt;/i&gt; L. subsp. &lt;i&gt;montana&lt;/i&gt; from Turkey