Total Oil Content and Fatty Acid Profile of Some Almond (Amygdalus communis L.) Cultivars

Yıldırım, Adnan Nurhan; Akinci-Yildirim, Fatma; Şan, Bekir; Sesli, Yılmaz

doi:10.1515/pjfns-2015-0032

Cited by 27 publications

(11 citation statements)

References 13 publications

(14 reference statements)

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“…As an example, the proposed processing factor for hydrophobic pesticides (log P= 3) in nut seed with 54% in oil content was 2.5. For this case, the average oil content of almond oil is 58% [44], thus the estimate processing factor for this oil was 2.6. This proposal value, was used to estimate the LOQs of OPs in almond seed (see Table 3).…”

Section: Optimization Of the Spe Procedures Using Almond Oilmentioning

confidence: 93%

Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oils

Boulanouar

Combès

Mezzache

et al. 2017

Journal of Chromatography A

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The increasing use of pesticides in agriculture causes environmental issues and possible serious health risks to humans and animals. Their determination at trace concentrations in vegetable oils constitutes a significant analytical challenge. Therefore, their analysis often requires both an extraction and a purification step prior to separation with liquid chromatography (LC) and mass spectrometry (MS) detection. This work aimed at developing sorbents that are able to selectively extract from vegetable oil samples several organophosphorus (OPs) pesticides presenting a wide range of physico-chemical properties. Therefore, different conditions were screened to prepare molecularly imprinted polymers (MIPs) by a non-covalent approach. The selectivity of the resulting polymers was evaluated by studying the OPs retention in pure media on both MIPs and non-imprinted polymers (NIP) used as control. The most promising MIP sorbent was obtained using monocrotophos (MCP) as the template, methacrylic acid (MAA) as the monomer and ethylene glycol dimethacrylate (EGDMA) as the cross-linker with a molar ratio of 1/4/20 respectively. The repeatability of the extraction procedure and of the synthesis procedure was demonstrated in pure media. The capacity of this MIP was 1mg/g for malathion. This MIP was also able to selectively extract three OPs from almond oil by applying the optimized SPE procedure. Recoveries were between 73 and 99% with SD values between 4 and 6% in this oil sample. The calculated LOQs (between 0.3 and 2μg/kg) in almond seeds with a SD between 0.1 and 0.4μg/kg were lower than the Maximum Residue Levels (MRLs) established for the corresponding compounds in almond seed.

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Section: Optimization Of the Spe Procedures Using Almond Oilmentioning

confidence: 93%

Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oils

Boulanouar

Combès

Mezzache

et al. 2017

Journal of Chromatography A

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“…Most of the nuts oils have high content of monounsaturated fatty acids [5]. For example, monounsaturated fatty acids percentage in almond oil vary between 66% and 78%, depending on cultivars [6,7], while hazelnuts oil content of monounsaturated fatty acids is around 80% [8]. In contrast, walnuts oil has been shown to have high percentages of polyunsaturated fatty acids as linoleic (PUFA) acid and linolenic acid [9,10,11].…”

mentioning

confidence: 99%

The Fatty Acids Composition and Antioxidant Activity of Walnut Cold Press Oil

Copolovici¹,

Bungău²,

Boscencu³

et al. 2017

Rev. Chim.

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The fatty acids composition and antioxidant activity have been determinate for cold press walnut oil. It has been found that the total saturated fatty acids have been 8.8 % while poly unsaturated fatty acids have been 72.84 %. The ratio between omega-6 and omega-3 has been determined as 5.06 which could help in human healthy diet. On the same side, the antioxidant activity of the oil is very high at a level of 3.65 mmol L-1 and a ratio between lipophilic and hydrophilic fractions of 9.45.

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“…Research on the characterization of oils and solid fats (butter) derived from nuts is extensive [17], due to the long traditional use of these products and of increasing consumption as alternatives to dairy sources. Most analyses focus on the composition of major components, such as the presence of fatty acids [18,19]), of triglycerides and of some minor components with nutraceutical properties, such as vitamins and antioxidants [8,20,21].…”

Section: Discussionmentioning

confidence: 99%

Discovery of Unexpected Sphingolipids in Almonds and Pistachios with an Innovative Use of Triple Quadrupole Tandem Mass Spectrometry

Rubino

Dei

Bignotto

et al. 2020

Foods

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The densely packed storage of valuable nutrients (carbohydrates, lipids, proteins, micronutrients) in the endosperm of nuts and seeds makes the study of their complex composition a topic of great importance. Ceramides in the total lipid extract of some ground almonds and pistachios were searched with a systematic innovative discovery precursor ion scan in a triple quadrupole tandem mass spectrometry, where iso-energetic collision activated dissociation was performed. Five descriptors were used to search components with different C18 long chain bases containing different structural motifs (d18:0, d18:1, d18:2, t18:0, t18:1). The presence of hexoside unit was screened with a specific neutral loss experiment under iso-energetic collision activated dissociation conditions. The discovery scans highlighted the presence of two specific hexosyl-ceramides with a modified sphingosine component (d18:2) and C16:0 or C16:0 hydroxy-fatty acids. The hexosyl-ceramide with the non-hydroxylated fatty acid seemed specific of pistachios and was undetected in almonds. The fast and comprehensive mass spectrometric method used here can be useful to screen lipid extracts of several more seeds of nutraceutical interest, searching for unusual and/or specific sphingosides with chemically decorated long chain bases.

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Total Oil Content and Fatty Acid Profile of Some Almond (Amygdalus communis L.) Cultivars

Cited by 27 publications

References 13 publications

Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oils

Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oils

The Fatty Acids Composition and Antioxidant Activity of Walnut Cold Press Oil

Discovery of Unexpected Sphingolipids in Almonds and Pistachios with an Innovative Use of Triple Quadrupole Tandem Mass Spectrometry

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