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SM ISO690:2012 COJOCARU-TOMA, Maria, VAMEȘ, Mariana. Phenolic compounds of Lavandulae angustifoliae Mill. residues. In: Cercetarea în biomedicină și sănătate: calitate, excelență și performanță, Ed. 1, 20-22 octombrie 2021, Chişinău. Chișinău, Republica Moldova: 2021, p. 448. ISBN 978-9975-82-223-7 (PDF).. |
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Cercetarea în biomedicină și sănătate: calitate, excelență și performanță 2021 | ||||||
Conferința "Cercetarea în biomedicină și sănătate: calitate, excelență și performanță" 1, Chişinău, Moldova, 20-22 octombrie 2021 | ||||||
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Pag. 448-448 | ||||||
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Background. Lavandula angustifolia Mill. is a species of the family Lamiaceae, native to the Mediterranean Basin, which shows antibacterial, antifungal, carminative, sedative and antidepressant effects, based on acyclic monoterpenoids: (linalool (30-35%), linalyl acetate (10-14.2%), lavandulol, geraniol) and polyphenol content. Objective of the study. Determination of total polyphenol compounds and total flavonoids in 2 residues: Lavandulae R-1 (average particle size of 0.5 mm) and Lavandulae R-2 (average particle size of 15-20 mm). Material and methods. The dry residue from the aerial parts of Lavender, obtained after extraction of the essential oil by hydrodistillation, was divided into 2 batches and subjected to the extraction of phenolic compounds with 96% ethanol in the Soxhlet apparatus, in 5 cycles. The total content of polyphenols was determined spectrophotometrically after Folin-Ciocalteu, and the total flavonoids were dosed with 25 g/L aluminum chloride solution. Results. The L. angustifolia species provides significant products to the pharmaceutical and cosmetic industry, but and lavender residues have not been used so far, after the extraction of volatile oil, although they contain various chemical compounds. The results show that the Lavandulae R-1 residue, obtained from a vegetal products with smaller dimensions has a higher total content of polyphenols, expressed in gallic acid (2.19%) and total flavonoids expressed in rutoside (2, 03%) , followed by Lavandulae R-2 residue, with a total content of polyphenols (1.12%) and flavonoids (1.43%). Conclusion. The results confirm that the residues of Lavander can be used as a source of polyphenols and total polyphenol content and total flavonoids, depend on the method of extraction and the degree of crushing of the vegetal products. |
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Cuvinte-cheie Lavandula angustifolia Mill., residue, polyphenols, Lavandula angustifolia Mill., reziduu, polifenoili |
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