Pharmacognostic Research on Viola Declinata Waldst. Et Kit. (violaceae)
نویسندگان
چکیده
In order to continue our previous studies on some Viola species from Romania, we have analysed for the first time some active principles from aerial parts of V. declinata Waldst. et Kit. We have performed gravimetric methods for saponins and mucilages, and spectrophotometric determinations and HPLC analysis of carotenoids. We established the content in saponins (4.40%), mucilages (10.26%), and total carotenoids (8.45 mg/100g vegetal product, expressed in β-carotene). In fresh aerial parts we have determined by HPLC: violaxanthin (281 μg/100g), antheraxanthin (283 μg/100g), lutein (896 μg/100g), zeaxanthin (479 μg/100g), β-carotene 5,6-epoxide (48 μg/100g), β-carotene (546 μg/100g), and 9Z-β-carotene (76 μg/100g). Our results showed the presence of the same active principles in Viola declinata and V. tricolor, the differences being only quantitative. Rezumat În continuarea studiilor noastre asupra unor specii de Viola din România, am analizat pentru prima dată unele principii active din părţile aeriene de V. declinata Waldst. et Kit. Am utilizat metode gravimetrice pentru dozarea saponinelor şi mucilagiilor şi metode spectrofotometrice şi cromatografice (HPLC) pentru analiza carotenoidelor. Concentraţia saponinelor a fost de 4,40%, cea de mucilagii de 10,26%, iar cea a carotenoidelor totale de 8,45 mg/100g produs vegetal, exprimată în β-caroten. În părţile aeriene proaspete am determinat prin HPLC: violaxantina (281 μg/100g), anteraxantina (283 μg/100g), luteina (896 μg/100g), zeaxantina (479 μg/100g), β-caroten 5,6-epoxidul (48 μg/100g), β-carotenul (546 μg/100g) şi 9Z-β-carotenul (76 μg/100g). Rezultatele au arătat prezenţa aceloraşi grupe de principii active în speciile Viola declinata şi V. tricolor, diferenţele fiind doar cantitative.
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