The influence of organ, season and drying method on chemical composition and antioxidant and antimicrobial activities of Juniperus phoenicea L. essential oils

Abstract

It could be concluded that drying of leaves of J. phoenicea in the sun and berries in oven-drying was more suitable and was recommended for obtaining higher essential oil yield, but for a higher percentage of some special components such as alpha-pinene and delta-3-carene shade-drying was more suitable.

Determination of Chemical Composition, Total Phenolic, Antimicrobial, and Antioxidant Activities ofEchinophora tenuifoliaEssential Oil

“…[28−30] A possible reason of this sensitivity could be explained by the cell membrane of Gram positive bacteria having lipophilic ends of lipoteichoic acids, thus hydrophobic compounds more easily penetrate from cell membrane of the Gram positive strain than the Gram negative strains. [31] Furthermore, type and size of effective molecules, which are found in medicinal plants, can affect antimicrobial capacity. [32] Also, minor components could contribute to antimicrobial properties of essential oil as well as major components.…”

Essential Oil of <i>Amomum maximum</i> Roxb. and Its Bioactivities against Two Stored-Product Insects

“…Physiological expression of secondary metabolism of the plant may be different at all stages of its development 4 . In the previous reports, influence of organ, season and drying method on essential oil of Juniperus phoenicea was evident 24 . Besides, temperature, circadian rhythm, plant stage, soil acidity and climate heat, photoperiod, humidity all affect the secondary metabolism of the plant and essential oil composition 25 27 .…”

Essential Oil Content and Composition ofLavandula AngustifoliaMill. as Affected by Drying Method and Extraction Time

“…In shade dried samples (1h) higher quantity of β-phellandrene (7.0 %) and the least amount of In agreement with previous reports such as high percentage of germacrene-D in Glechoma longituba 27 and geraniol and citronellol in Rosa damascena 7 , shade drying resulted the higher proportion of some important chemical components (linalool and β-phellandrene) in the essential oil. Another investigation over drying methods of Juniperus phoenicea L. declared that for a higher percentage of some special components such as α-pinene and δ-3-carene shade-drying was more suitable 28 .…”