Characterization of essential oils extracted from different aromatic plants by FTIR spectroscopy

Morar, Maria Ioana; Fetea, Florinela; Rotar, Ancuța Mihaela; Nagy, Melinda; Semeniuc, Cristina Anamaria

doi:10.15835/buasvmcn-fst:12634

Cited by 12 publications

(14 citation statements)

References 2 publications

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“…The C=C-C stretching vibrations are manifested at 1516 and 1589 cm −1 . The C-H vibrational groups coupled in different chemical configurations present specific IR bands in 2800-3400 cm -1 and 700-1500 cm −1 spectral ranges (see Table 3) [31][32][33][34][35]. The antioxidant and antibacterial properties of A. absinthium L. essential oil and extracts and the antimicrobial mechanisms involved, were reported in several papers.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Hydroxyapatite Coated with Arthemisia absinthium Composites

et al. 2020

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There is significant research showing that essential oils extracted from the plants have antibacterial effects. The purpose of this study was to develop a biocomposite based on hydroxyapatite coated with Artemisia absinthium essential oil and to highlight its antibacterial activity. Therefore, present studies are aimed at developing new materials combining hydroxyapatite with Artemisia absinthium essential oil, in order to avoid postoperative infections. The purpose of this work is to highlight the antimicrobial properties of the Artemisia absinthium essential oil-hydroxyapatite composites obtained by a simple method and at low costs. The structural properties and antimicrobial efficiency of the Artemisia absinthium essential oil-hydroxyapatite composite have been studied. The samples based on Artemisia absinthium essential oil analyzed in this study showed that wormwood essential oil presented the highest efficacy against the fungal strain of C. parapsilosis. It has been shown that wormwood essential oil has a strong antimicrobial effect against the microbial strains tested in this study. Furthermore, the antimicrobial properties of the biocomposites based on hydroxyapatite and essential oil are due to the presence of the essential oil in the samples.

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Section: Resultsmentioning

confidence: 99%

Multifunctional Hydroxyapatite Coated with Arthemisia absinthium Composites

et al. 2020

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“…In the spectrum of the HAp-P from Figure 3b, IR bands characteristic of P-EO can be identified (marked in Figure 3c). In the spectral regions of 400–1000 and 1000–1200 cm −1 , the overlapping of P-EO and HAp IR bands determined the formation of the broad molecular bands observed in Figure 3b [47,48,49,50,51]. Finally, it should be noted that the absorption bands at 917, 1283, 2430, 3320, 3487, 3561, and 3581 that distinguish the formation of octacalcium phosphate are not observed in the HAp and HAp-P spectra, and certify the HAp stoichiometry (Ca/P ratio = 1.67).…”

Section: Resultsmentioning

confidence: 99%

Peppermint Essential Oil-Doped Hydroxyapatite Nanoparticles with Antimicrobial Properties

et al. 2019

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This study aimed at developing an antimicrobial material based on hydroxyapatite (HAp) and peppermint essential oil (P-EO) in order to stimulate the antimicrobial activity of hydroxyapatite. The molecular spectral features and morphology of the P-EO, HAp and hydroxyapatite coated with peppermint essential oil (HAp-P) were analyzed using Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The coating of the HAp with the P-EO did not affect the ellipsoidal shape of the nanoparticles. The overlapping of IR bands of P-EO and HAp in the HAp-P spectrum determined the formation of the broad molecular bands that were observed in the spectral regions of 400–1000 cm−1 and 1000–1200 cm−1. The antibacterial activity of the P-EO, HAp and HAp-P were also tested against different Gram-positive bacteria (methicillin-resistant Staphylococcus aureus (MRSA) 388, S. aureus ATCC 25923, S. aureus ATCC 6538, E. faecium DSM 13590), Gram-negative bacteria (Escherichia coli ATCC 25922, E. coli C5, P. aeruginosa ATCC 27853, P. aeruginosa ATCC 9027) and a fungal strain of Candida parapsilosis. The results of the present study revealed that the antimicrobial activity of HAp-P increased significantly over that of HAp.

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“…Essential oils are among the active agents used to enhance the functionality of edible films. It is well known essential oils possess antioxidant, antibacterial, and antifungal properties and that their chemical compounds are responsible for these [ 1 , 4 , 5 ]. Several studies have reported that essential oil of tarragon exhibits antioxidant activity [ 6 , 7 , 8 , 9 ] and is efficient against various food-related microorganisms such as Bacillus subtilis [ 10 ], Escherichia coli [ 7 , 10 ], Pseudomonas aeruginosa [ 10 ], Staphylococcus aureus [ 7 , 8 , 10 ], Listeria monocytogenes [ 8 ], Proteus vulgaris [ 10 ], Alcaligenes faecalis [ 8 ], Shigella dysenteriae [ 8 ], Aerobacter aerogenes [ 10 ], Candida albicans [ 7 , 11 ], Saccharomyces cerevisiae var.…”

Section: Introductionmentioning

confidence: 99%

Formulation and Characterization of Antimicrobial Edible Films Based on Whey Protein Isolate and Tarragon Essential Oil

et al. 2020

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The effects of heat treatment and the addition of tarragon essential oil on physical and mechanical properties of films prepared with 5% whey protein isolate (WPI) and 5% glycerol were investigated in this study. Heat treatment of the film-forming solution caused increases in thickness, moisture content, swelling degree, water vapor permeability (WVP), b*-value, ΔE*-value, transmittance values in the 200–300-nm region, transparency, and puncture resistance of the film, but decreases in water solubility, L*-value, a*-value, transmittance values in the 350–800-nm region, and puncture deformation. When incorporated with tarragon essential oil, heat-treated films have the potential to be used as antimicrobial food packaging. The addition of tarragon essential oil in film-forming solution caused increases in moisture content, solubility in water, WVP, a*-value, b*-value, ΔE*-value, and transparency of the film; decreases in transmittance values in the range of 600–800 nm; and variations in swelling degree, L*-value, transmittance values in the range of 300–550 nm, puncture resistance, and puncture deformation. Nevertheless, different tendencies were noticed in UNT (untreated) and HT (heat-treated) films with regards to transparency, light transmittance, puncture resistance, and puncture deformation. Based on these findings, HT films show improved physical and mechanical properties and, therefore, are more suitable for food-packaging applications.

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Characterization of essential oils extracted from different aromatic plants by FTIR spectroscopy

Abstract: Four essential oils isolated from dried leaves of parsley, lovage, basil and thyme were investigated by FTIR spectroscopy. The analysis of recorded spectra revealed that the main compounds of tested essential oils dominate their vibrational spectra.

Cited by 12 publications

References 2 publications

Multifunctional Hydroxyapatite Coated with Arthemisia absinthium Composites

Multifunctional Hydroxyapatite Coated with Arthemisia absinthium Composites

Peppermint Essential Oil-Doped Hydroxyapatite Nanoparticles with Antimicrobial Properties

Formulation and Characterization of Antimicrobial Edible Films Based on Whey Protein Isolate and Tarragon Essential Oil

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