Nutritional quality of fresh and heated Aleppo pine (Pinus halepensis Mill.) seed oil: trans-fatty acid isomers profiles and antioxidant properties

Dhibi, Madiha; Issaoui, Manel; Brahmi, Faten; Mechri, Beligh; Mnari, Amira; Chéraif, Imed; Skhiri, Fathia; Gazzah, Noureddine; Hammami, Mohamed

doi:10.1007/s13197-012-0664-5

Cited by 25 publications

(19 citation statements)

References 25 publications

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“…Beta-carotene was measured according to the method described by Dhibi et al (2014) [ 16 ] and the content was expressed using the following equation:

where A max is maximum of absorption between 440 and 480 nm…”

Section: Methodsmentioning

confidence: 99%

Oil Characterization and Lipids Class Composition of Pomegranate Seeds

Amri

Lazreg-Aref

Mekni

et al. 2017

BioMed Research International

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This study aims to investigate the physicochemical characteristics, phenolics content, and oil composition of pomegranate oil seeds (PSO). Quality indices, pigments, phenolics content, and antioxidant activity were determined. PSO was fractioned into polar lipids: glycolipids (GL) and phospholipids (PL). Sterols profile and fatty acids composition of total lipids (TL), GL, and PL were determined by GC/FID. The free acidity, the peroxide value, and the specific extinction coefficients were, respectively, 1.69%, 3.42 in milliequivalents of active oxygen per kilogram of oil, 4.15, and 3.95. PSO is rich in phenols (93.42 mg/Kg) but poor in pigments. The sterols markers were β-sitosterol (77.94%), Δ5-avenasterol (7.45%), and campesterol (6.35%). Oil content was 12.2%, wherein 23.9% were GL and 24.35% were PL. TL were rich in unsaturated fatty acids (63.17%), while saturated fatty acids were more present in PL and GL (71.97% and 66.29%, resp.). Conjugated fatty acids were about 13.30%, 2.03%, and 4.91%, respectively, in TL, PL, and GL. The cis/trans ratio of TL, PL, and GL was, respectively, 49.82%, 42.91%, and 27.39%. Monounsaturated fatty acids were more bound in PL, whereas polyunsaturated fatty acids were more bound in GL. PSO is a good source of essential fatty acids, phenolics compounds, phytosterols, and lipid-soluble fractions.

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“…Beta-carotene was measured according to the method described by Dhibi et al (2014) [ 16 ] and the content was expressed using the following equation:

where A max is maximum of absorption between 440 and 480 nm…”

Section: Methodsmentioning

confidence: 99%

Oil Characterization and Lipids Class Composition of Pomegranate Seeds

Amri

Lazreg-Aref

Mekni

et al. 2017

BioMed Research International

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“…Conventional methods, using organic solvent for extraction is the most common method for preparing natural oils as the pine kernel oil [190] others uses mechanical processing [191]. However, the high cost together with the effect on environmental pollution, due to the organic solvents used threatening human's life, limited the use of conventional methods.…”

Section: Special Emphasis On Oil Extraction From Botanicalsmentioning

confidence: 99%

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Belwal

Ezzat

Rastrelli

et al. 2018

TrAC Trends in Analytical Chemistry

349

182

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Plant extracts have been long used by the traditional healers for providing health benefits and are nowadays suitable ingredient for the production of formulated health products and nutraceuticals. Traditional methods of extraction such as maceration, percolation, digestion, and preparation of decoctions and infusions are now been replaced by advanced extraction methods for increased extraction efficiency and selectivity of bioactive compounds to meet up the increasing market demand. Advanced techniques use different ways for extraction such as microwaves, ultrasound waves, supercritical fluids, enzymes, pressurized liquids, electric field, etc. These innovative extraction techniques, afford final extracts selectively rich in compounds of interest without formation of artifacts, and are often simple, fast, environmentally friendly and fully automated compared to existing extraction method. The present review is focused on the recent trends on the extraction of different bioactive chemical constituents depending on the nature of sample matrices and their chemical classes including anthocyanins, flavonoids, polyphenols, alkaloids, oils, etc. In addition, we review the strategies for designing extraction, selection of most suitable extraction methods, and trends of extraction methods for botanicals. Recent progress on the research based on these advanced methods of extractions and their industrial importance are also discussed in detail.

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“…where A is the absorbance of the oil at the respective wavelength and L is the cell thickness (mm) as described by Psomiadou and Tsimido [23]. The carotenoids fraction was measured with a UV-visible spectrophotometer (Perkin Elmer Lambda 25) at wave lengths between 440 and 480 nm, according to the method previously described by Dhibi et al [24]. The b-carotene content was expressed using the following equation:…”

Section: Chlorophylls Pheophytin-a and Beta-carotene Contentsmentioning

confidence: 99%

Enhancement of Antioxidants in Olive Oil by Foliar Fertilization of Olive Trees

Tekaya¹,

Mechri²,

Bchir³

et al. 2013

J Americ Oil Chem Soc

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Oxidative stability (OS) of virgin olive oil is affected by different antioxidants whose levels may be influenced by nutrients availability. Changes in OS of virgin olive oil and antioxidants levels were evaluated according to foliar application of six nutrient‐based treatments: T1 (rich in nitrogen), T2 (rich in boron, magnesium, sulfur and manganese), T3 (rich in phosphorus and potassium), T4 (rich in phosphorus and calcium), T5 (application of T1 and T2) and T6 (application of T1, T2, T3 and T4). The foliar applications were carried out during two successive growing seasons and oils were extracted and analyzed at the end of the experiment (after 2 years). T3 and T6 treatments improved oil stability by increasing the content of antioxidants, while T2 and T4 affected negatively the antioxidant profile of oils. Measured correlations between OS and compositional variables showed that total phenols had the highest value (R = 0.937, p < 0.001), followed by α‐tocopherol (R = 0.775, p < 0.001) and oleic/linoleic ratio (R = 0.625, p < 0.05). These findings suggest that the changing levels of antioxidant compounds, due to fertilization, may be used to obtain oils with the highest quality.

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Nutritional quality of fresh and heated Aleppo pine (Pinus halepensis Mill.) seed oil: trans-fatty acid isomers profiles and antioxidant properties

Cited by 25 publications

References 25 publications

Oil Characterization and Lipids Class Composition of Pomegranate Seeds

Oil Characterization and Lipids Class Composition of Pomegranate Seeds

A critical analysis of extraction techniques used for botanicals: Trends, priorities, industrial uses and optimization strategies

Enhancement of Antioxidants in Olive Oil by Foliar Fertilization of Olive Trees

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