Profiling of phenolic compounds in domestic and imported extra virgin olive oils in China by high performance liquid chromatography-electrochemical detection

Zhu, Zihang; Li, Xue; Wang, Junhong; Dai, Fang; Wang, Wei

doi:10.1016/j.lwt.2023.114424

Cited by 6 publications

(3 citation statements)

References 39 publications

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“…The analysis of phenolic compounds in olive oils is carried out using chromatographic methods, especially high-performance liquid chromatography (HPLC) coupled with DAD, electrochemical, and MS detections [ 21 , 22 , 23 , 24 ]. HRMS analysis offers improved resolution and stability for accurate mass measurements along with accurate targeted and untargeted analysis [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Discrimination of Olive Oil and Extra-Virgin Olive Oil from Other Vegetable Oils by Targeted and Untargeted HRMS Profiling of Phenolic and Triterpenic Compounds Combined with Chemometrics

Geană

Ciucure

Apetrei

et al. 2023

IJMS

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Extra-virgin olive oil (EVOO) and virgin olive oil (VOO) are valuable natural products of great economic interest for their producing countries, and therefore, it is necessary to establish methods capable of proving the authenticity of these oils on the market. This work presents a methodology for the discrimination of olive oil and extra-virgin olive oil from other vegetable oils based on targeted and untargeted high-resolution mass spectrometry (HRMS) profiling of phenolic and triterpenic compounds coupled with multivariate statistical analysis of the data. Some phenolic compounds (cinnamic acid, coumaric acids, apigenin, pinocembrin, hydroxytyrosol and maslinic acid), secoiridoids (elenolic acid, ligstroside and oleocanthal) and lignans (pinoresinol and hydroxy and acetoxy derivatives) could be olive oil biomarkers, whereby these compounds are quantified in higher amounts in EVOO compared to other vegetable oils. The principal component analysis (PCA) performed based on the targeted compounds from the oil samples confirmed that cinnamic acid, coumaric acids, apigenin, pinocembrin, hydroxytyrosol and maslinic acid could be considered as tracers for olive oils authentication. The heat map profiles based on the untargeted HRMS data indicate a clear discrimination of the olive oils from the other vegetable oils. The proposed methodology could be extended to the authentication and classification of EVOOs depending on the variety, geographical origin, or adulteration practices.

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Section: Introductionmentioning

confidence: 99%

Discrimination of Olive Oil and Extra-Virgin Olive Oil from Other Vegetable Oils by Targeted and Untargeted HRMS Profiling of Phenolic and Triterpenic Compounds Combined with Chemometrics

Geană

Ciucure

Apetrei

et al. 2023

IJMS

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show abstract

“…In comparison with the fractions obtained from 1 D-LC (Figure S1) and the standard solution, 33 peaks were identified. They were gallic acid (1), (E)GC-(E)GC/GC (5), protocatechuic acid (6), (E)GC-(E)C isomer (7), neochlorogenic acid (8), (E)GC-(E)C ( 9), catechin (10), chlorogenic acid/2×(E)GC-(E)C ( 12), p-coumaric acid isomer (13), procyanidin B2 (14), EGCG (15), p-coumaric acid (17), orientin (18), myricetin-O-hexoside (20,21), hyperoside (22), isoquercitrin (23), methyl rhamnoflavone In fingerprint studies, similarity is often used to compare the proximity and differences between chromatograms. Cosine Algorithm is a commonly used method for simi- larity evaluation [38].…”

Section: Hplc-ecd Fingerprinting and Similarity Evaluationmentioning

confidence: 99%

“…Furthermore, because of its exceptional sensitivity and selectivity, HPLC-ECD has been extensively utilized to investigate electroactive substances in a range of materials. This method is simple, low-cost, and sensitive, allowing the achievement of fast and eco-friendly procedures, which play an important role in the quality control of chemicals, foods, and herbal medicines [15][16][17]. The phenolic acids and flavonoids in persimmon leaves have phenolic hydroxyl groups with electrochemical activity, which can be effectively detected by ECD even at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Separation, identification, and fingerprinting of antioxidant components in persimmon (Diospyros kaki) leaves by offline two‐dimensional liquid chromatography with electrochemical detection and tandem mass spectrometry

Yang,

Shao,

Luo

et al. 2024

J of Separation Science

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In this work, the antioxidant components in persimmon (Diospyros kaki) leaves were separated by offline two‐dimensional liquid chromatography‐electrochemical detection (LC×LC‐ECD) and identified by LC‐tandem mass spectrometry (LC‐MS/MS). A total of 33 antioxidants, mainly proanthocyanidins, and glycosides of kaempferol and quercetin, were identified. The antioxidant assays demonstrated that the fractions collected from the first‐dimension LC (1D‐LC) possessed considerable radical scavenging capabilities, with correlation coefficients of peak area versus radical scavenging capability of 1,1‐diphenyl‐2‐picrylhydrazyl and 2,2′‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) being 0.9335 and 0.9116, respectively. The fingerprinting showed that 37 peaks were present in all samples. The major antioxidant components of persimmon leaves were the glycosides of kaempferol and quercetin. Finally, fourteen antioxidants were quantitatively assessed. Offline LC×LC provided high peak capacity and separation; ECD enabled specific screening and detection of antioxidant components; and MS/MS provided excellent identification capability. In this study, the combination of the three approaches was utilized to screen for antioxidant components in persimmon leaves, with satisfactory findings. In conclusion, this technique is an effective means for rapid analysis of antioxidant components and quality control of medicinal plants, achieving rapid separation of congeners and facilitating more accurate qualitative and quantitative analyses.

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The therapeutic potential of saharian monovarietal virgin olive oil (olea europea l.) on hematological, histological, and antioxidant status in titanium dioxide nanoparticles-induced oxidative stress in rats

Boughediri,

Ouazouaz,

Triki

et al. 2024

Comp Clin Pathol

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Profiling of phenolic compounds in domestic and imported extra virgin olive oils in China by high performance liquid chromatography-electrochemical detection

Cited by 6 publications

References 39 publications

Discrimination of Olive Oil and Extra-Virgin Olive Oil from Other Vegetable Oils by Targeted and Untargeted HRMS Profiling of Phenolic and Triterpenic Compounds Combined with Chemometrics

Discrimination of Olive Oil and Extra-Virgin Olive Oil from Other Vegetable Oils by Targeted and Untargeted HRMS Profiling of Phenolic and Triterpenic Compounds Combined with Chemometrics

Separation, identification, and fingerprinting of antioxidant components in persimmon (Diospyros kaki) leaves by offline two‐dimensional liquid chromatography with electrochemical detection and tandem mass spectrometry

The therapeutic potential of saharian monovarietal virgin olive oil (olea europea l.) on hematological, histological, and antioxidant status in titanium dioxide nanoparticles-induced oxidative stress in rats

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