Isolation of sterols from sunflower oil deodorizer distillate

Carmona, Miguel Ángel Velázquez; Jiménez, Carlos Arce; Jiménez‐Sanchidrián, César; Peña, Fernando López; Ruíz, José Rafael

doi:10.1016/j.jfoodeng.2010.07.004

Cited by 31 publications

(24 citation statements)

References 13 publications

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“…In the study reported by Ramamurthi et al [1991] on DDCLO, the saponifi cation value was 199.6 (mg/g of oil) which is higher than in our samples of canola distillate. Whereas, saponifi cation results of the sunfl ower distillate sample are in good agreement with the reported studies [Carmona et al, 2010;Pagani & Baltanás, 2010]. The higher saponifi cation value of the DDCLO-l and DD-CLO-3 and lower FFA content indicated the presence of high amount of triacylglyceride compared to DDCLO-2 [Khatoon et al, 2010].…”

Section: Resultssupporting

confidence: 89%

“…All samples of DD obtained appeared as dark red and liquid at room temperature. Moisture content in the DD was determined and found to be almost similar to the reported values [Carmona et al, 2010]. Comparatively, higher percentage of FFAs was observed in DDCLO-2 (54.4%) as compared to DDCLO-1 (36.2%) and DDCLO-3 (35.7% of canola oil).…”

Section: Resultssupporting

confidence: 78%

“…Total sterols in DDCLO samples were signifi cantly high in concentration (18.2-19.2%) than their concentration in DDSFO (13.9-14.2%). Total tocopherols and hydrocarbons estimated were signifi cantly greater in DDSFO samples as compared to DDCLO and this is already mentioned in the literature [Carmona et al, 2010;Güçlü-Üstündağ & Temelli, 2007]. The small variations in the composition of each sample may be due to the sample preparation or might be affected by deodorization condition.…”

Section: Sterols Tocopherols and Hydrocarbons Compositionsupporting

confidence: 58%

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Chemical Characterization of Canola and Sunflower Oil Deodorizer Distillates

Naz¹,

Sherazi²,

Talpur³

et al. 2014

Pol. J. Food Nutr. Sci.

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Key words: canola and sunfl ower deodorizer distillates, phytosterols, tocopherols, fatty acids, physico-chemical propertiesIn the present work deodorizer distillates of canola and sunfl ower oil were studied for their chemical characterization. Tocopherols, sterols, hydrocarbons and fatty acid composition were determined by Gas chromatography Mass spectrometry (GC-MS). Results indicated that deodorizer distillates of canola oil (DDCLO) studied had higher saponifi cation value in the range of 164.2-175.8 mg/g and all deodorizer distillates of sunfl ower oil (DDSFO) had high iodine value of 126.2-127.1 g/100 g. Peroxide value and free fatty acids were present in the range between 7.0-8.9 mEq/Kg and 35.7-54.4 g/100 g in DDSFO and DDCLO samples, respectively. Contents of oleic acid (49.3-51.1 g/100 g) and linolenic acid (6.2-7.5 g/100 g) were signifi cantly greater in DDCLO samples. Conversely, DDSFO contained concentrated amount of linoleic acid (52.8-53.3 g/100 g). Tocopherols and hydrocarbons were signifi cantly higher in all DDSFO samples while, sterols were dominant in DDCLO samples. GC-MS provided excellent results for simultaneous determination of tocopherols, sterols, hydrocarbons and fatty acid composition of deodorizer distillates of canola and sunfl ower oil. Unauthenticated Download Date | 5/12/18 1:22 AM

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 78%

Section: Sterols Tocopherols and Hydrocarbons Compositionsupporting

confidence: 58%

See 1 more Smart Citation

Chemical Characterization of Canola and Sunflower Oil Deodorizer Distillates

Naz¹,

Sherazi²,

Talpur³

et al. 2014

Pol. J. Food Nutr. Sci.

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“…Phytoterols reduce the intestinal absorption of dietary and biliary cholesterol and studies have suggested that an intake of 2 g/ day can cause 10% reduction in the levels of LDL cholesterol in the blood and for this reason phytosterols have been used as additives in various food items such as fat spread, yoghourt and milk during processing (Carmona et al, 2010). Besides lowering of cholesterol, phytosterols have been reported to be involved in anti-inflammatory and antiatherogenicity, anti-cancer and anti-oxidative activities.…”

Section: Phytosterols From Microalgaementioning

confidence: 99%

“…Plant sterols or phytosterols have become particularly interesting for the biotechnology industry in the last few decades due to the discovery that they can significantly reduce the intestinal absorption of dietary and biliary low density lipoprotein (LDL) cholesterol and help maintain good cardiovascular health. Because of such properties, phytosterols are currently used as additives in various products such as milk, margarines and yoghurt (Carmona et al, 2010). Moreover, phytosterols are reported to provide protection against nervous system disorders such as amyotrophic lateral sclerosis, autoimmune encephalomyelitis, or Alzheimer's disease and they also possess anti-oxidative, anti-inflammatory, anti-atherogenicity and anti-cancer properties (Kim et al, 2008;Breitner & Welsh-Bohmer, 2000).…”

Section: Introductionmentioning

confidence: 99%

Induction of carotenoid and phytosterol accumulation in microalgae

Ahmed¹

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Microalgae have become well-known in the last few decades as producers of various compounds of high nutritional value, such as long chain polyunsaturated fatty acids, pigments including carotenoids, proteins, sterols, and vitamins. Among these compounds, carotenoids and phytosterols have been receiving increased attention based on the discoveries that they are capable of preventing various diseases such as cardiovascular problems, certain cancers, and neurological disorders, e.g. Alzheimer's, amyotrophic lateral sclerosis etc. The commercial exploitation of the microalgal strains Dunaliella salina and Haematococcus pluvialis for β-carotene and astaxanthin, respectively, led to the hypothesis for the current study that other microalgal strains may even have a higher potential to produce these compounds, especially when the underlying physiological pathways that lead to elevated levels of these compounds could be stimulated. The aims of this thesis were therefore (1) to screen microalgal strains for their potential to produce carotenoids and phytosterols and (2) to induce the top producer(s) to accumulate higher quantities of carotenoids and phytosterols and (3) to scale up the successful induction method(s) to explore large-scale commercial production of these metabolites. Moreover, the well-known sensitive nature of carotenoids (e.g. astaxanthin and β-carotene) to light, drying and preservation methods led to the idea that freeze-drying rather than the currently popular spray-drying methods could be more suitable for long-term storage of highly valuable carotenoids, such as astaxanthin.As a first step, screening was carried out on twelve microalgal strains collected from brackish and marine waters for carotenoid profiles and contents, antioxidant capacity (total phenolic content and oxygen radical absorbance capacity (ORAC), and phytosterol profiles and

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Sunflower and High‐Oleic Sunflower Oils

Grompone

2020

Bailey's Industrial Oil and Fat Products

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World production of sunflower seed in 2018–2019 was 51.46 million metric tons which is the third in worldwide oilseed production. Sunflower oil is fourth in importance among vegetable oils, amounting to 15 million metric tons in 2015–2016 and now exceeding 17 million metric tons. The kernel represents 70% of seed weight, containing around 55% of oil. Sunflower oil of different oleic content may be classified as (i) regular (14–39%), (ii) mid‐oleic (43–72%), and (iii) high‐oleic (75–91%). With a good oxidative stability, regular sunflower oil finds many applications in the food market mainly as salad oil and cooking oil. Industrial applications of sunflower oil include its use as frying oil, as well as in the manufacture of mayonnaise and oil‐based dressings. Hydrogenated sunflower oil may still be used in the manufacture of shortenings and margarines, but this is becoming less important. High‐oleic sunflower oil is the most appropriate type for use in industrial frying, in view of its low content in polyunsaturated fatty acids. Mid‐oleic sunflower oil is of higher frying quality than other nonhydrogenated oils (soybean, canola, corn, and cottonseed). Nonedible industrial uses of regular sunflower oil include the production of biodiesel, lubricants, vegetable oil‐based printing inks, and so on. Meal, hulls, and sodium soapstock are obtained as by‐products of the extraction and refining processes. Other minor by‐products may also be obtained: lecithin, waxes, tocopherols, and so on.

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Isolation of sterols from sunflower oil deodorizer distillate

Cited by 31 publications

References 13 publications

Chemical Characterization of Canola and Sunflower Oil Deodorizer Distillates

Chemical Characterization of Canola and Sunflower Oil Deodorizer Distillates

Induction of carotenoid and phytosterol accumulation in microalgae

Sunflower and High‐Oleic Sunflower Oils

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