Determination of Coconut Oil Adulteration with Soybean Oil by Direct Infusion Electrospray Ionization Mass Spectrometry

Pizzo, Jéssica S.; Galuch, Marília B.; Santos, Patrícia D. S.; Manin, Luciana Pelissari; Zappielo, Caroline D.; Silva, Orivaldo J.; Santos, Oscar Oliveira; Visentainer, Jesuí V.

doi:10.21577/0103-5053.20190042

Cited by 7 publications

(5 citation statements)

References 16 publications

(28 reference statements)

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“…The fatty acid profile of the organic cold‐pressed coconut oil used in the current investigation (Table 3) was in accordance with literature data (Bhatnagar et al., 2009; Orsavova et al., 2015). In a recent study, pure coconut oil was obtained from coconut pulp and the fatty acid composition was examined (Pizzo et al., 2019). Similar to our results, lauric acid (12:0) was the major fatty acid (49.89 ± 1.08%), followed by myristic acid (14:0) (19.80 ± 0.73%) and comparable amounts of palmitic (16:0) (8.41 ± 0.74%) and caprylic (8:0) (7.19 ± 0.78%) acids.…”

Section: Resultsmentioning

confidence: 99%

In vitro bioaccessibility of macular xanthophylls from commercial microalgal powders of Arthrospira platensis and Chlorella pyrenoidosa

Tudor

Gherasim

Dulf

et al. 2021

Food Science & Nutrition

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The bioaccessibility of the major carotenoids present in two commercial microalgal supplements in powder form was investigated through a standardized in vitro digestion method. The dried biomass of Arthrospira platensis contained β‐carotene (36.8 mg/100 g) and zeaxanthin (20.8 mg/100 g) as the main carotenoids as well as a high content of saturated fatty acids (61% of total fatty acids), whereas that of Chlorella pyrenoidosa was rich in lutein (37.8 mg/100 g) and had a high level of unsaturated fatty acids (65% of total fatty acids). In the case of the latter, lutein bioaccessibility was not statistically enhanced after the replacement of porcine bile extract with bovine bile extract in the in vitro digestion protocol and after the addition of coconut oil (17.8% as against to 19.2% and 19.2% vs. 18.5%, respectively). In contrast, the use of bovine bile extract along with co‐digestion with coconut oil significantly enhanced the bioaccessibility of zeaxanthin from A. platensis, reaching the highest bioaccessibility of 42.8%.

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Section: Resultsmentioning

confidence: 99%

In vitro bioaccessibility of macular xanthophylls from commercial microalgal powders of Arthrospira platensis and Chlorella pyrenoidosa

Tudor

Gherasim

Dulf

et al. 2021

Food Science & Nutrition

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“…Soybean oil was chosen as the adulterant because it is the cheapest vegetable oil commercialized in Brazil. 10,11,20 Finally, hierarchical clustering analysis (HCA) was performed to visualize the similarities and differences between the samples using the TAG profiles obtained by ASAP-MS.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, the authenticity of the samples was evaluated using an analytical curve equation achieved by linear regression through the plot of the percentage of soybean oil intentionally added to sweet almond oil versus the percentage of α‐linolenic acid (α‐18:3n‐3) that was determined by GC‐FID. Soybean oil was chosen as the adulterant because it is the cheapest vegetable oil commercialized in Brazil 10,11,20 . Finally, hierarchical clustering analysis (HCA) was performed to visualize the similarities and differences between the samples using the TAG profiles obtained by ASAP‐MS.…”

Section: Introductionmentioning

confidence: 99%

First report on quality and purity assessment of sweet almond oil in Brazilian body oils by gas chromatography and mass spectrometry

et al. 2023

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Sweet almond oil is a raw material with high‐added value used in different products. Then, the aim of this study is to evaluate the quality and purity of 10 body oils based on sweet almond oils currently available in the Brazilian market. Fatty acid composition and triacylglycerol (TAG) profile were determined by gas chromatography with flame ionization detector (GC‐FID) and atmospheric solids analysis probe mass spectrometry (ASAP‐MS), respectively. The authenticity of samples was assessed using an analytical curve equation. Soybean oil was chosen as the adulterant because it is the cheapest vegetable oil commercialized in Brazil. Hierarchical clustering analysis (HCA) in conjunction with ASAP‐MS classified product samples according to the type of vegetable oil (soybean and sweet almond oils). The addition of soybean oil (8.79% to 99.70%) was confirmed in samples. However, only two samples stated in their label the presence of soybean oil as an ingredient. These findings highlight the need for better oversight by regulatory bodies to ensure that consumers acquire high quality and authentic products based on equally high quality and purity of sweet almond oils.

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“…However, there are a number of examples that illustrate that for qualitative analysis of the compounds present in food samples the direct infusion/electrospray ionization mass spectrometry (DI/ESI‐MS) can also be successful. For example, DI/ESI‐MS can be reliable for the assessment of adulteration of oils, 1 , 2 , 3 , 4 , 5 whisky, 6 cachaça, 7 , 8 arabica coffee, 9 or for quality control of wine. 10 Flavonoids are among the compounds that have been successfully identified by DI/ESI‐MS, for example, in wine, 11 berries, 12 , 13 pequi, 14 and rose species.…”

Section: Introductionmentioning

confidence: 99%

Identification of isoflavones in the extract of supplements for menopause symptoms by direct infusion electrospray ionization tandem mass spectrometry

Beszterda

Frański

2020

Analytical Science Advances

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In recent years high consumption of dietary supplements has been observed. However, the consumption of dietary supplements may lead to the unexpected side effects that can be related to the number of adulterated supplements quite often marketed. It has prompted the search for a fast and reliable method of identification of main active compounds in the supplements. In this study, the isoflavones present in the methanol extracts of dietary supplements for menopause symptoms were identified by using direct infusion electrospray ionization tandem mass spectrometry. The product ion spectra of [M-H] − ions derived from the extracts matched very well those obtained for standard compounds. Daidzein, genistein, and glycitein were identified in the soybased supplements, while daidzein, formononetin, and biochanin A were identified in the red clover-based ones. The respective [M+Na] + ions were also detected; however, their product ion spectra did not allow isoflavone identification. It can be concluded that the main isoflavones present in the extracts of dietary supplements can be successfully and quickly identified by using the direct infusion electrospray ionization in negative ion mode, followed by the tandem mass spectrometry experiment.

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Determination of Coconut Oil Adulteration with Soybean Oil by Direct Infusion Electrospray Ionization Mass Spectrometry

Cited by 7 publications

References 16 publications

In vitro bioaccessibility of macular xanthophylls from commercial microalgal powders of Arthrospira platensis and Chlorella pyrenoidosa

In vitro bioaccessibility of macular xanthophylls from commercial microalgal powders of Arthrospira platensis and Chlorella pyrenoidosa

First report on quality and purity assessment of sweet almond oil in Brazilian body oils by gas chromatography and mass spectrometry

Identification of isoflavones in the extract of supplements for menopause symptoms by direct infusion electrospray ionization tandem mass spectrometry

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