Evaluation of oxidative stability of new cold-pressed sunflower oils during accelerated thermal stability tests

Lužaić, Tanja; Grahovac, Nada; Hladni, Nada; Romanić, Ranko

doi:10.1590/fst.67320

Cited by 9 publications

(8 citation statements)

References 34 publications

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“…The total oxidative values of the analyzed oils were quite similar, and they were in the order of 8.11 ± 0.20 (sunflower oil) and 8.35 ± 0.10 (rapeseed oil) ( Table 3 ). The obtained results for both samples were in line with the previous studies [ 65 , 68 ]. In general, vegetable oils with a Totox value < 10 are considered fresh and of high quality [ 80 ].…”

Section: Resultssupporting

confidence: 92%

“…These values were within the limits of the iodine index set by the standards [ 73 ]. Lužaić et al (2021) [ 68 ] examined the IV of 25 sunflower oil samples and obtained a range of values starting from 81 ± 2.04 gI 2 /100 g to 127 ± 5.38 I 2 /100 g. The higher IV value of sunflower oil in the present study probably indicates a higher content of oleic fatty acid in its composition [ 68 ]. Consequently, the latter oils have interesting nutritional properties and pharmacological activity [ 15 ].…”

Section: Resultsmentioning

confidence: 51%

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Proximate Composition, Physicochemical, and Lipids Profiling and Elemental Profiling of Rapeseed (Brassica napus L.) and Sunflower (Helianthus annuus L.) Grown in Morocco

Gagour

Ahmed

Bouzid

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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We investigate and compare the nutritional and physicochemical properties of rapeseed and sunflower grown in Morocco. In order to examine a complete physicochemical characterization, various parameters such as mineral profile, fatty acid composition, sterols contents, total flavonoids content (TFC), total polyphenols content (TPC), and quality oil parameters were evaluated. The results showed a relatively small difference in the physicochemical composition of the seeds, as sunflower seeds recorded higher amounts of protein and oil content (22.98 ± 0.01 g/100 g and 41.30 ± 0.50 g/100 g) than rapeseed (22.98 ± 0.01 and 38.80 ± 0.50), while mineral elements profile was observed to be statistically different. Nevertheless, both seeds were rich in K, Ca, P, Mg, and Na and they were relatively poor in Na, Fe, Mn, Cu, and Zn. The most represented macroelement was K with the amount of 7936.53 ± 63.87 mg/Kg in rapeseed and 7739.22 ± 59.50 mg/Kg in sunflower. On the other hand, Cu was present in the analyzed samples the least, mostly below 20 mg/kg. For TPC and TFC, the sunflower recorded higher values (49.73 ± 0.50 and 25.37 ± 0.39 mg GAE/g) than rapeseed (38.49 ± 0.24 and 22.55 ± 1.76 mg QE/g). The fatty acid composition showed that both extracted oils have beneficial proprieties, as they are rich in unsaturated fatty acids; namely, rapeseed oil contains a high level of oleic acid (C18 : 1) (62.19%), while sunflower oil was richer in linoleic acid (C18 : 2) (55.7%). As a result, we conclude that the studied varieties have major importance in terms of both nutritional and seed improvement potentials.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 51%

Proximate Composition, Physicochemical, and Lipids Profiling and Elemental Profiling of Rapeseed (Brassica napus L.) and Sunflower (Helianthus annuus L.) Grown in Morocco

Gagour

Ahmed

Bouzid

et al. 2022

Evidence-Based Complementary and Alternative Medicine

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“…Furthermore, the unsaturation amount of fatty acids is another relevant characteristic that is inversely proportional to oxidative stability. Sunflower hybrid oils (H) which presented higher iodine value (IV) showed lower IP, for instance, e.g., H19: (IV = 127, IP = 3.32 h) has lower IP compared with H21 (IV = 81, IP = 9.55 h) (64). Moreover, among unsaturation fatty acids, cold-pressed sunflower oil (SO) that presented a higher amount of oleic than linoleic fatty acids was more oxidative stably H20 (55), as well as SO1 (oleic, 86.52% and linoleic, 5.49%, IP = 19.87 h), while SO2 (oleic, 18.52% and linoleic, 66.02%, IP = 6.42 h) (65).…”

Section: Determination Of Oxidative Stabilitymentioning

confidence: 99%

Oxidative stability and elemental analysis of sunflower (Helianthus annuus) edible oil produced in Brazil using a domestic extraction machine

Machate

Melo²,

Oliveira³

et al. 2022

Front. Nutr.

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The consumption of regular vegetable oils has been linked to energy acquisition, nutritional benefits, health improvement, and the regulation of metabolic diseases. This study evaluated fatty acids composition, physicochemical, thermal, oxidative, and optical properties, and quantified trace elements in the sunflower oil extracted by a domestic cold-press machine. The oil presented linoleic (54.00%) and oleic (37.29%) primary unsaturated fatty acids (91.67%), in which atherogenic (0.05), thrombogenic (0.16), hypocholesterolemic/hypercholesterolemic (21.97), peroxide (16.16), saponification (141.80), and relative density indices (0.92) demonstrated to be suitable for human consumption and possible health promotion. In addition, the concentrations of trace elements by ICP OES were ordered Zn > Fe > Al > Cu > Mn > Cr. Concentrations of Zn, Fe, Al, Cu, and Mn were lower than FAO/WHO and DRI/AI limits, while Cr concentrations exceeded the FAO/WHO limits, which can be used as an indicator of the polluted ambiance. Sunflower oil quantities daily consumption were calculated by taking into account non-carcinogenic risk (CR < 10−4), and total non-carcinogenic hazard index (HI < 1). Based on trace elements determined in this study, the suitable quantity of sunflower oil consumption varies according to individuals aged 8, 18, and 30 years and will be deemed 0.61, 1.46, and 1.65 g/kg, respectively, attending HI = 0.99 and CR < 10−4.

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“…Only cooking oils with the lowest initial peroxide value are suitable for consumption. Oils with a peroxide value higher than 9 mEq O 2 /kg cause undesirable health problems by increasing reactive oxygen species and secondary products of lipid peroxidation that stimulate cardiovascular and inflammatory diseases (Lobo et al, 2010;Lužaić et al, 2022). Therefore, oils with high peroxide values should not be produced and must enforce some regulations to sell highly oxidized cooking oils.…”

Section: Peroxide Indexmentioning

confidence: 99%

Biological and toxicological evaluation of edible Jatropha curcas L. oil

et al. 2022

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Original ArticleJ. curcas has been known to be toxic for a long time, due to the presence of phorbol esters (Makkar et al., 1997), therefore, it is used to produce biofuels or for medicinal and pharmacological purposes, and as life fences by the local populations in many countries (Goel et al., 2007). Consumption of the seeds containing phorbol esters induces nausea, dizziness, and diarrhea; hence all J. curcas-derived products are not advisable for human or animal consumption. Phorbol esters are very resistant to heat, which restricts the use of all its products (Makkar et al., 1997).Notwithstanding, J. curcas varieties, identified as nontoxic exist in Mexico, these varieties do not have phorbol esters and, thus, are edible (Vandepitte et al., 2019). These seeds are found in the North of the state of Veracruz, Mexico, and have been widely used for a long time to prepare food for human consumption (Valdes-Rodriguez et al., 2013).Recently, oil of J. curcas seeds has gained interest as a source of renewable energy. The seeds have a high content of oil (43-59%) (Makkar et al., 1997;Martínez-Herrera et al., 2006;Colmenero & Bonilla, 2013) and can contain up to 60% of fatty acids like those of vegetal oils like soy, canola, sunflower, predominating unsaturated fatty acids, like oleic acid (34.3-45.8%) and linoleic acid (21.51-46.72%) (Colmenero & Bonilla, 2013). Additionally, the amino acids profile and the physicochemical characterization of the oil have been determined and compared with other vegetal sources, like soy, sesame, and sunflower (Carvalho et al., 2019;Kitts et al., 2019). The seed contains high quality oil and proteins (Makkar et al., 1997). Several studies have strengthened the potential of J. curcas to be used for human nutrition (Senger et al., 2017;Chino et al., 2019;García et al., 2020).Vegetal oils can be divided by categories, depending on their processing, in virgin or refined. During the refining process,

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Evaluation of oxidative stability of new cold-pressed sunflower oils during accelerated thermal stability tests

Cited by 9 publications

References 34 publications

Proximate Composition, Physicochemical, and Lipids Profiling and Elemental Profiling of Rapeseed (Brassica napus L.) and Sunflower (Helianthus annuus L.) Grown in Morocco

Proximate Composition, Physicochemical, and Lipids Profiling and Elemental Profiling of Rapeseed (Brassica napus L.) and Sunflower (Helianthus annuus L.) Grown in Morocco

Oxidative stability and elemental analysis of sunflower (Helianthus annuus) edible oil produced in Brazil using a domestic extraction machine

Biological and toxicological evaluation of edible Jatropha curcas L. oil

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