Investigation of ostrich oil via Raman and infrared spectroscopy and predictions using the DFT method

Martins, Q. D.; Almeida, Patrícia M. V. de; Ferreira, Queila S.; Oliveira, Anselmo E. de; Aguirre, C. A.; Faria, J.L.B.

doi:10.1016/j.vibspec.2019.102945

Cited by 4 publications

(4 citation statements)

References 37 publications

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“…The region between 750-500 cm −1 , shows a CH band at 725 cm −1 for CGEO. Considering carboxylic acid a long chain grouping, the band is associated with 725 cm −1 , present in this type of structure[42,44,50]. Whereas for CGPO and CGNE, we see a broad band between 900-500 cm −1 that may be associated with oxygen interactions with other compounds in dispersion, as is the case with ferrite magnets.…”

mentioning

confidence: 64%

“…Bands common to CH groups appear above 2500 cm −1 . Thus, bands in 2724 cm −1 , 2848 cm −1 , 2893 cm −1 and 3007 cm −1 are associated with -CH and -CH 3 bonding [50,51]. In the Raman spectrum of CGNE there is a total or partial suppression of the bands for a wide fluorescence curve, as seen mainly in the region between 300-1800 cm −1 , which indicates the enveloping of the bands present.…”

Section: Methodsmentioning

confidence: 94%

“…In the experimental spectra this band is not present for CGEO and CGPO. Whereas for CGNE, the presence of broadband may be evidence of the sample's OH groups [23,42,50]. The bands in 636 and 647 cm −1 are linked to carboxyl grouping with formation mode and torsion respectively, as seen in Table I.…”

Section: Calculationmentioning

confidence: 99%

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Raman and FTIR spectroscopy experimental and theoretical in magnetic nanoemulsion from Carapa Guianensis Aublet

Silva,

Martins,

Ribas

et al. 2023

Rev. Mex. Fís.

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This work brings Raman and Fourier transform infrared (FTIR) spectroscopy as a proposal for a vibrational characterization of Carapa Guianensis Aublet essential oil in natura and polymerized and of magnetic nanoemulsion. Calculation of computational chemistry based on the method density functional theory with B3LYP functional and 6-311+G(d,p) base set parameters was used to obtain theoretical frequencies and vibrational signatures of the oleic acid molecule. Results of Raman and Fourier transform infrared spectroscopy confirm bands of Carapa Guianensis Aublet essential oil present in polymerized oil and magnetic nanoemulsion studied. The density functional theory method shows that the bands 1099 cm-1, 1714 cm-1 and 1812 cm-1 explain the presence of vibrational modes of oleic acid in the samples. The density functional theory brought good conformation to the chosen molecule.

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mentioning

confidence: 64%

Section: Methodsmentioning

confidence: 94%

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Raman and FTIR spectroscopy experimental and theoretical in magnetic nanoemulsion from Carapa Guianensis Aublet

Silva,

Martins,

Ribas

et al. 2023

Rev. Mex. Fís.

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“…Further, the nano-encapsulated phytosterols had additional absorption peaks at 1732 and 1060 cm −1 . These peaks could be attributed to the stretching vibration of C=O and C–O–C in the fat part and lecithin of SLNs 34 , 35 . Therefore, the nanoencapsulation of phytosterols has been shown by functional groups in the product.…”

Section: Discussion and Resultsmentioning

confidence: 98%

Co-sonicated coacervation for high-efficiency green nanoencapsulation of phytosterols by colloidal non-biotoxic solid lipid nanoparticles

Mahdlou,

Dehkharghani,

Niazi

et al. 2024

Sci Rep

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Plant sterols are used as a supplement or an additive to reduce LDL cholesterol. The poor dispersibility and instability of phytosterols are the main limitations of their application. So, we tried to overcome these problems through nanoencapsulation of them with colloidal natural RSs (SLNs) using an effective approach to achieve higher efficiency and less intrinsic coagulation. Phytosterols extracted from flax seeds oil with caffeine by a new method were encapsulated with a stable colloid of sheep fat and ostrich oil (1:2), soy lecithin, and glucose through co-sonicated coacervation. Characterization of the obtained SLNs was conducted using FTIR, UV–Vis, SEM, DLS, and GC analysis. The three–factor three–level Behnken design (BBD) was used to prioritize the factors affecting the coacervation process to optimize particle size and loading capacity of SLNs. Operational conditions were examined, revealing that the size of SLNs was below 100 nm, with a phytosterols content (EE %) of 85.46% with high positive zeta potential. The nanocapsules' anti-microbial activity and drug-release behavior were then evaluated using the CFU count method and Beer-Lambert's law, respectively. The controlled release of nanocapsules (below 20%) at ambient temperature has been tested. The stability of nano-encapsulated phytosterols was investigated for six months. All results show that this green optimal coacervation is a better way than conventional methods to produce stable SLNs for the nanoencapsulation of phytosterols.

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Edible oil analysis

Bunaciu¹,

Aboul‐Enein²,

Hoang³

2020

Vibrational Spectroscopy Applications in Biomedical, Pharmaceutical and Food Sciences

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Investigation of ostrich oil via Raman and infrared spectroscopy and predictions using the DFT method

Cited by 4 publications

References 37 publications

Raman and FTIR spectroscopy experimental and theoretical in magnetic nanoemulsion from Carapa Guianensis Aublet

Raman and FTIR spectroscopy experimental and theoretical in magnetic nanoemulsion from Carapa Guianensis Aublet

Co-sonicated coacervation for high-efficiency green nanoencapsulation of phytosterols by colloidal non-biotoxic solid lipid nanoparticles

Edible oil analysis

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