Chemical Variability, Antioxidant and Antifungal Activities of Essential Oils and Hydrosol Extract of Calendula arvensis L. from Western Algeria

Abstract

The chemical composition of the essential oils and hydrosol extract from aerial parts of Calendula arvensis L. was investigated using GC-FID and GC/MS. Intra-species variations of the chemical compositions of essential oils from 18 Algerian sample locations were investigated using statistical analysis. Chemical analysis allowed the identification of 53 compounds amounting to 92.3 - 98.5% with yields varied of 0.09 - 0.36% and the main compounds were zingiberenol 1 (8.7 - 29.8%), eremoligenol (4.2 - 12.5%), β-curcumene (2.1 - 12.5%), zingiberenol 2 (4.6 - 19.8%) and (E,Z)-farnesol (3.5 - 23.4%). The study of the chemical variability of essential oils allowed the discrimination of two main clusters confirming that there is a relation between the essential oil compositions and the harvest locations. Different concentrations of essential oil and hydrosol extract were prepared and their antioxidant activity were assessed using three methods (2,2-diphenyl-1-picrylhydrazyl, Ferric-Reducing Antioxidant Power Assay and β-carotene). The results showed that hydrosol extract presented an interesting antioxidant activity. The in vitro antifungal activity of hydrosol extract produced the best antifungal inhibition against Penicillium expansum and Aspergillus niger, while, essential oil was inhibitory at relatively higher concentrations. Results showed that the treatments of pear fruits with essential oil and hydrosol extract presented a very interesting protective activity on disease severity of pears caused by P. expansum.

Anti-inflammatory activity of niosomes entrapped with Plai oil (<em>Zingiber cassumunar</em> Roxb.) by therapeutic ultrasound in a rat model

“…Although methods such as ferric reducing antioxidant power (FRAP) and DPPH protocols have been documented in previous study for evaluating the antioxidant activity of essential oil, DPPH method responded greatly to the antioxidant activity of essential oil. 25 DPPH results of this study confirmed the antioxidant activity of Plai oil. But the concentrations of each compound compared to previous studies were different: sabinene (25%-45%), γ-terpinene (5%-10%), α-terpinene (2%-5%), terpinene-4-ol (25%-45%), and DMPBD (1%-10%), 13 sabinene (27%-34%), γ-terpinene (6%-8%), α-terpinene (4%-5%), terpinene-4-ol (30%-35%), and DMPBD (12%-19%).…”

Chemical Compositions, Antioxidant and Antimicrobial Activities of Essential Oils of Psidium guajava L. Leaves from Different Geographic Regions in China

“…Samples collected from Guangdong Province displayed higher essential oil yields (0.61 – 0.75%, v / w ), while leaves cultivated in Taiwan possessed lower oil contents (0.18 – 0.22%, v / w ). These differences may be related to the climatic conditions, mainly the temperatures, and soil composition from the different geographical regions in China . Sangwan et al .…”

“…These discrepancies may be attributed to the distinct climatic conditions, altitude, and soil composition of the different geographical regions. [ ][ ]…”

Antimicrobial and Antioxidant Properties of Hydrosol/Essential Oils Obtained from Orange (Citrus sinensis) Peels

“…Oksijenli monoterpen oranının yüksek olduğu ekstrakt daha yüksek antioksidan aktivite gösterir. Calendula arvensis türünden elde edilen hidrosolün (%93,7) esansiyel yağına (%62) göre daha fazla oksijenli monoterpen içerdiği için hidrosolün antioksidan aktivitesi daha yüksek bulunmuştur [23]. Portakaldan elde edilen hidrosol ve esansiyel yağların komposizyonu karşılaştırıldığında ise hidrosolünün esansiyel yağa göre daha fazla oksijenli monoterpen içerdiği bulunmuştur [12].…”