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Advisor(s)
Abstract(s)
The objective of this work was to evaluate the antioxidant properties of Lavandula latifolia
waste obtained after essential oil distillation. Samples of 12 wild populations of the Lavandula
genus collected between 2009 and 2010 were hydrodistilled and their by-products
were analyzed using the FolineCiocalteu, free radical scavenging activity (2,2-diphenyl-1-
picrylhydrazyl), and the ferric reducing antioxidant power (FRAP) methods. Rosmarinic
acid, apigenin, and luteolin contents were analyzed by high-performance liquid chromatographyediode
array detection. The mean of total phenolic content ranged from
1.89 ± 0.09 mg gallic acid equivalents/g dry weight to 3.54 ± 0.22 mg gallic acid equivalents/
g dry weight. The average value of the half maximal effective concentration (EC50) for
scavenging activity ranged from 5.09 ± 0.17 mg/mL to 14.30 ± 1.90 mg/mL and the variability
of the EC50 in FRAP ranged from 3.72 ± 0.12 mg/mL to 18.55 ± 0.77 mg/mL. Annual
variation was found among this samples and the environmental conditions of 2009 were
found to be more favorable. The plants collected from Sedano showed the highest antioxidant
power. Our results show that rosmarinic acid and apigenin in L. latifolia contributed
to the antioxidant properties of the waste. In conclusion, the by-product of the distillation
industry could be valorizing as a source of natural antioxidants.
Description
Keywords
Antioxidant activity By-product Interpopulation variability Spike lavender Total phenolic content
Citation
Méndez-Tovar, Inés; Herrero, Baudilio; Pérez-Magariño, Silvia; Pereira, J.A.; Asensio-S.-Manzanera, M. Carmen (2015). By-product of Lavandula latifolia essential oil distillation as source of antioxidants. Journal of Food and Drug Analysis. 1021-9498. 23:2, p. 225-233
Publisher
Elsevier