Solid phase extraction in the analysis of squalene and tocopherols in olive oil

Grigoriadou, Despina; Androulaki, Anna; Psomiadou, Eleni; Tsimidou, Maria Z.

doi:10.1016/j.foodchem.2006.12.065

Cited by 83 publications

(80 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The 13 Pogliani et al [38]. However, it could be noted a difference of 1 ppm for carbon C3, probably due to a misprint in the paper [38].…”

Section: C Nmr Data Of Squalene and Olive Oilmentioning

confidence: 99%

“…However, it could be noted a difference of 1 ppm for carbon C3, probably due to a misprint in the paper [38]. The 13 C NMR spectrum of a commercially available olive oil is more complex (Figure 1). Four parts may be distinguished: 172-174 ppm, esters; 124-134 ppm, ethylenic carbons; 60-72 ppm, carbons of glycerol; and 13-35 ppm, aliphatic carbons.…”

Section: C Nmr Data Of Squalene and Olive Oilmentioning

confidence: 99%

“…In olive oil, squalene represents 0.3% to 0.7% of the whole mass, accounting for 60-75% of the unsaponifiable fraction [12]. The presence of squalene confers to olive oil a great stability against auto-oxidation and photo-oxidation [13].…”

Section: Introductionmentioning

confidence: 99%

“…In parallel, 1 H and 13 C NMR have been widely used for identification and quantitative evaluation of triglycerides in olive oil (saturated fatty acid chains, mono-unsaturated, poly-unsaturated, stereochemistry of the double bonds, etc.) and for quality assessment and authentication [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Quantification of Squalene in Olive Oil Using 13C Nuclear Magnetic Resonance Spectroscopy

et al. 2017

View full text Add to dashboard Cite

Abstract:In the course of our ongoing work on the chemical characterization of Corsican olive oil, we have developed and validated a method for direct quantification of squalene using 13 C Nuclear Magnetic Resonance (NMR) spectroscopy without saponification, extraction, or fractionation of the investigated samples. Good accuracy, linearity, and precision of the measurements have been observed. The experimental procedure was applied to the quantification of squalene in 24 olive oil samples from Corsica. Squalene accounted for 0.35-0.83% of the whole composition.

show abstract

“…The 13 Pogliani et al [38]. However, it could be noted a difference of 1 ppm for carbon C3, probably due to a misprint in the paper [38].…”

Section: C Nmr Data Of Squalene and Olive Oilmentioning

confidence: 99%

Section: C Nmr Data Of Squalene and Olive Oilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Quantification of Squalene in Olive Oil Using 13C Nuclear Magnetic Resonance Spectroscopy

et al. 2017

View full text Add to dashboard Cite

show abstract

“…2 Squalene in olive oil is in general considerably high as compared to other oils. 3,4 Because of its potential pharmaceutical impacts researchers have been interested in production and biochemistry of squalene in recent years. It has various favourable effects as a nutrient, preventive and therapeutic medicine.…”

Section: Introductionmentioning

confidence: 99%

Correlation of Predictor Variables to Squalene Content in Olive Fruits Using Multivariate Statistical Analysis

Çetinkaya¹

2017

IJPER

View full text Add to dashboard Cite

The present study was designed to examine the correlation of some predictor variables including pH, organic matter (OM), lime (L), phosphorus (P), potassium (K) and total salt (TS) content of soils of olive orchards to squalene content of olive fruits. Multiple linear regression analysis was used to model the relationship between explanatory variables (pH, OM, L, P, K and TS) and responses variable (squalene content) by fitting a linear equation to observed data. The olive fruits (Kilis Yaglik cv.) were sampled from tendifferent locations. The soil characteristics of the sampling sites were determined. Oil extraction was carried out in similar industrial extraction conditions using an oleodosor system. Accordingly, pH (p=0.596), OM (p=0.359), L (p=0.490), P (p=0.127), K (p=0.265) and TS (p=0.572) were not individually statistical significant but their interaction was significant (p=0.006). Standardizing the olive oil quality is not easy at all due to complex and variable environmental conditions. Along with the results herein, the factors themselves were not significant but their complex interaction was significant.

show abstract

Analysis of Antioxidant‐Rich Phytochemicals

Xu¹,

Howard²

2012

View full text Add to dashboard Cite

Solid phase extraction in the analysis of squalene and tocopherols in olive oil

Cited by 83 publications

References 21 publications

Quantification of Squalene in Olive Oil Using 13C Nuclear Magnetic Resonance Spectroscopy

Quantification of Squalene in Olive Oil Using 13C Nuclear Magnetic Resonance Spectroscopy

Correlation of Predictor Variables to Squalene Content in Olive Fruits Using Multivariate Statistical Analysis

Analysis of Antioxidant‐Rich Phytochemicals

Contact Info

Product

Resources

About