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Ammoides pusilla (Brot.) Breistr. from Algeria: Effect of harvesting place and plant part (leaves and flowers) on the essential oils chemical composition and antioxidant activity
- Source :
- Open Chemistry, Vol 14, Iss 1, Pp 343-350 (2016)
- Publication Year :
- 2016
- Publisher :
- Walter de Gruyter GmbH, 2016.
-
Abstract
- The chemical variability and antioxidant activity of the flower and leaf essential oils (EOs) of Ammoides pusilla, collected at Algeria was evaluated. The EOs were isolated by hydrodistillation and analyzed by Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry (GC-MS). Antioxidant activity was assessed by DPPH, ABTS, Reducing Power and TBARS assays. Oxygen-containing monoterpenes (54-77%) dominated all but one A. pusilla leaf EOs, and in two flower EOs (53% both). Thymol dominated in practically all leaf and flowers EOs, but cumin alcohol, p-cymene and limonene attained also relatively high percentages in some EOs. A strong negative correlation (p50 values of ABTS, DPPH, and hydroxyl scavenging activity and the percentages of p-cymene and cumin alcohol present in EOs were observed, showing that higher levels of these monoterpenes were responsible for the best activities found. In spite of this finding, the antagonism and/or synergism between EO components must be taken into account, since the EO activity can only be considered as a whole. Moreover, given the EOs chemical variability their use as antioxidants, should be preceded by their chemical evaluation.
- Subjects :
- Antioxidant
p-Cymene
medicine.medical_treatment
01 natural sciences
Lipid peroxidation
chemistry.chemical_compound
thymol
Botany
Materials Chemistry
medicine
QD1-999
Thymol
Chemical composition
radical scavenging
Ammoides pusilla
010405 organic chemistry
Plant Part
food and beverages
lipid peroxidation
General Chemistry
0104 chemical sciences
Chemistry
010404 medicinal & biomolecular chemistry
p-cymene
cumin alcohol
chemistry
Subjects
Details
- ISSN :
- 23915420
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Open Chemistry
- Accession number :
- edsair.doi.dedup.....17e76fb0b93f5925b1f675e52cb3f67b