Physicochemical and quality characteristics of cold-pressed flaxseed oils

Choo, Wee Sim; Birch, John; Dufour, Jean Pierre

doi:10.1016/j.jfca.2006.12.002

Cited by 229 publications

(217 citation statements)

References 28 publications

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“…The results showed that alpha-linolenic acid represents the major fatty acid (54.51% of total FAME) followed by oleic (17.38%) and linoleic (16.13%) acids while palmitic acid was the main saturated acid In our study it was found a n-3/n-6 PUFA ratio of 3.2, in good agreement with the findings of Choo et al (2007) who reported ratios of n-3/n-6 fatty acids in the range 3.28-3.72 in various cold-pressed flaxseed oils sold on the worldwide market.…”

Section: Amino Acids Contentsupporting

confidence: 91%

Flaxseeds: Nutritional Potential and Bioactive Compounds

Panaite¹,

Ropotă²,

Turcu³

et al. 2017

BUASVMCN-FST

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The objective of this work was to study the nutritional and bioactive composition of commercially available flaxseeds with the aim to develop new alternatives for their use as functional and nutraceutical food ingredient. The samples of flaxseed contained 20.86% protein, 31.16% fat, 29.07% crude fiber and 3.75% ash. Essential amino acids represented 34% of total protein. The amino acids profile showed that glutamic acid was the most abundant (3.87 g 100 g -1 ), followed by arginine (1.93 g 100 g -1 ) and aspartic acid (1.52 g 100 g -1 ). Fatty acids analysis indicated that alpha-linolenic acid represents the major fatty acid (54.51% of the total fatty acids). The ratio of unsaturated to saturated fatty acids was 8.67 while the n-3/n-6 PUFA ratio was 3.2. Total phenolics showed average contents of 295.92 mg GAE 100 g -1 , of which flavonoids accounted for 25.85 mg QE 100 g -1 . The results confirmed that, in addition to being one of the richest sources of alpha-linolenic acid, flaxseed is an essential source of high quality protein, soluble fiber and potent natural antioxidants.

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Section: Amino Acids Contentsupporting

confidence: 91%

Flaxseeds: Nutritional Potential and Bioactive Compounds

Panaite¹,

Ropotă²,

Turcu³

et al. 2017

BUASVMCN-FST

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“…Epaminondas (2009) found 7.06% palmitic acid and Vijaimohan et al (2006) found more than 51% ALA, 17% LA and 18% oleic acid. Choo, John and Dufour (2007) analyzed 3 flaxseed varieties and found ALA values ranging from 54 to 59.6%. However, Peiretti and Meineri (2008) found 2.9% palmitic, 0.3% oleic, 5.8% LA, and 32.8% ALA levels in flaxseed oil, lower values than those reported here.…”

Section: Nutritional Quality Indexesmentioning

confidence: 99%

Sesame and flaxseed oil: nutritional quality and effects on serum lipids and glucose in rats

Guimarães¹,

Macedo²,

Munhoz³

et al. 2013

Food Sci. Technol (Campinas)

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“…Therefore, artificially adding single or multiple ectogenous micronutrients such as vitamin E to hot-pressed and refined oil may be an expedient in future. Now, with the increasing concerns over nutrition and healthy diet, some new processing and pretreatment technologies of oil such as cold pressing technology have received more and more attention, which to a certain extent remedy the above defects and retain the most quality of bioactive compounds, such as tocopherol, total flavanoid, and polyphenols [9][10][11][12][13][14]. Cold-pressed flaxseed oil (CFO) has been commercially available in the market of many countries.…”

Section: Introductionmentioning

confidence: 99%

Effects of cold‐pressed and vitamin E‐enriched flaxseed oils on lipid profile and antioxidant status in high‐fat fed rats

Deng

et al. 2012

Euro J Lipid Sci & Tech

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In this study we evaluate whether cold-pressed flaxseed oil (CFO), vitamin E-enriched hot pressed and totally refined flaxseed oils (HRFOs) characterized by different qualities of micronutrients have beneficial effects on lipid profile and antioxidant status in high-fat fed rats. Male Wistar rats were fed synthetic diets containing 10% of HRFO, CFO, low-dose (100 mg/100 g oil) vitamin E-enriched HRFO (L-HRFO) or high-dose (200 mg/100 g oil) vitamin E-enriched HRFO (H-HRFO), respectively for 4 wk. The results showed that plasma triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol levels in CFO group decreased by 12, 21, and 18% compared with HRFO group ( p < 0.05), the total hepatic lipids, TC and TG levels in CFO group were also lower significantly than those in HRFO group, but no significant differences were observed in plasma and hepatic lipid profiles among HRFO, L-HRFO, and H-HRFO groups. T-AOC levels significantly increased by 11, 12, and 22% in CFO, L-HRFO and H-HRFO groups compared with HRFO group, which was negatively correlated with the MDA levels and similar changes were observed for GSH and vitamin E levels in plasma. The CFO had a significantly higher cholesterol secretion than HRFO, L-HRFO, and H-HRFO. These results indicated that CFO had a more beneficial effect on improving lipid status and preventing oxidative stress than HRFO, and vitamin E-enriched HRFO decreased the lipid peroxidation concentration though there was no significant effect on lipid profiles.Practical applications: The cold-pressed and vitamin E-enriched HRFOs characterized by different qualities of micronutrients reduced the risk factors of cardiovascular disease. This could provide a theoretical basis for the development of high value-added functional food ingredients based on flaxseed oil or a-linolenic acid.

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Physicochemical and quality characteristics of cold-pressed flaxseed oils

Cited by 229 publications

References 28 publications

Flaxseeds: Nutritional Potential and Bioactive Compounds

Flaxseeds: Nutritional Potential and Bioactive Compounds

Sesame and flaxseed oil: nutritional quality and effects on serum lipids and glucose in rats

Effects of cold‐pressed and vitamin E‐enriched flaxseed oils on lipid profile and antioxidant status in high‐fat fed rats

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