Cold Pressed Oils as Functional Food

Obiedzińska, Agnieszka; Waszkiewicz-Robak, B.

doi:10.15193/zntj/2012/80/027-044

Cited by 9 publications

(12 citation statements)

References 35 publications

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“…-Type of use: linseed, fiber, combined. [43]. Alfa-linolenic acid content ranged from 33% -38.8% in seed oil from Camelina sativa L., and linoleic acid content varied between 13.8% -21%.…”

Section: Discussionmentioning

confidence: 95%

“…Alfa-linolenic acid content ranged from 33% -38.8% in seed oil from Camelina sativa L., and linoleic acid content varied between 13.8% -21%. There are only flax seed oil and oil extracted from raspberry seeds on the list of bioactive compounds characteristic for plant oils [43] which are sources of α-linolenic acid. The following nutrients are rich in linoleic acid from the omega-6 family: afflower Carthamus tinctorius L., grape seed Vitis vinifera L., hemp Cannabis sativa L., corn Zea mays L., wheat germ, cotton seed, and soybean Glycine L [41,42].…”

Section: Discussionmentioning

confidence: 99%

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Comparative analysis of fatty acid composition in 84 accessions of flax (Linum usitatissimum L.)

Silska¹,

Walkowiak²

2019

J Pre Clin Clin Res.

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Introduction and objective. The aim of the study was to determine the content of five essential fatty acids in seed oil from 84 genotypes of flax (Linum usitatissimum L.) from the collection of genetic resources, stored at low temperatures of the long-term storage of the Plant Breeding and Acclimatization Institute in Radzików. The following fatty acids were evaluated: α-linolenic, linoleic, palmitic, stearic and oleic. The ranges of variability of fat content in flax seeds were also determined. In addition, it was calculated how many times the α-linolenic acid content is bigger than linoleic acid in seed oil of each accessions of flax. Materials and methods. The research material consisted of 84 genotypes of common flax (Linum usitatissimum L.), collected and included in the samples. The fat content was determined by infrared analysis (calibration performed on the basis of a seed sample at IHAR-PIB in Poznań) by means of a NIRS 6500 spectrophotometer with a reflection detector within the range of 400-2500 nm. Results. The ranges of variability of individual fatty acids of 84 flax accessions are as follows: α-linolenic acid: 48.4%-58.9%, linoleic acid: 10.3%-17.3%, palmitic acid 4.2%-6.6%, stearic acid 2.6%-5.1% and oleic acid: 17.0%-26.7%. The fat content in the seeds of the evaluated accessions ranged from 39.8%-44.8%. Conclusions. Flax seeds from the collection of the genetic resources are an excellent ingredient in food because they contain a large amount of α-linolenic acid. Dietary supplementation with linseed, also containing large amounts of α-linolenic acid and small amounts linoleic acid, allows provision of the body with the necessary ratio of the diunsaturated (n-6) to the triunsaturated fatty acid (n-3). In order to protect health, it is necessary to supplement the diet with a unique α-linolenic fatty acid that are present in only a few food ingredients.

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“…-Type of use: linseed, fiber, combined. [43]. Alfa-linolenic acid content ranged from 33% -38.8% in seed oil from Camelina sativa L., and linoleic acid content varied between 13.8% -21%.…”

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Comparative analysis of fatty acid composition in 84 accessions of flax (Linum usitatissimum L.)

Silska¹,

Walkowiak²

2019

J Pre Clin Clin Res.

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“…The seeds of false flax can be used universally, eg. : as feed (Waraich et al, 2013) and derived oil from them as food (Vollmann et al, 2007;Mińkowski et al, 2010;Obiedzińska and Waszkiewicz-Robak, 2012) as well as technical oil, including biofuel (Moser, 2010;Karcauskiene et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Reaction of winter varieties of false flax (Camelina sativa (L.) Crantz) to the varied sowing time

Czarnik¹,

Jarecki²,

Bobrecka-Jamro³

2018

JCEA

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In the seasons 2012/2013-2014/2015 an experiment was conducted in the fields of the Experimental Station Variety Examination in Przecław. The evaluated factors were as follows: (A)-sowing time (early, optimal, delayed) and (B)-Polish winter varieties of false flax (Maczuga, Luna, Przybrodzka). The study showed that early sowing time contributed to the lengthening of the vegetation period of plants, especially in relation to delayed sowing date. During the winter, the plant losses amounted on average to 11.3 pcs.•m-2. The highest plant density before harvest was recorded in the plots of the optimal sowing date. The early sowing time contributed to the increase in the value of SPAD (Soil Plant Analysis Development) and the number of silicles per plant as well as seed yield. Sowing the seeds in the optimal time was increased lodging while delayed caused an increase in the MTA (Mean Tip Angle) and LAI (Leaf Area Index) index and plant height as well as the number of seeds per silicle. The thousand seeds weight was 0.85 g and was not significantly modified by experimental factors. The varieties were differed in most of the studied traits, including yield seeds. The results of the research carried out indicate that in the area of the research, the best time sowing the seeds of winter false flax is the first decade of September.

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“…As we can read in the Codex Alimentarius, Bcold pressed fats and oils are edible vegetable fats and oils obtained by mechanical procedures e.g. expelling or pressing, without the application of heat^(Codex Alimmentarius Commission; Obiedzińska and Waszkiewicz-Robak 2012). The obtained extract can only be purified by washing with water, precipitating, filtrating, or centrifuging.…”

Section: Introductionmentioning

confidence: 99%

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

2017

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Oily seed extracts were used as research samples in Analytical Laboratory of Raw Materials and Plant Products. Supercritical carbon dioxide extraction on an industrial scale was used to prepare extracts from raw plant materials, usually berry seeds: blackcurrant, raspberry, strawberry, and chokeberry. Gas chromatography analysis was performed on Agilent equipment with single quadrupole mass spectrometer detector and split/splitless injector. Fatty acids (FAs) were determined using indirect method, where they were converted to c o r r e s p o n d i n g m e t h y l e s t e r s ( FA M E s ) d u r i n g trimethylsulfonium hydroxide solution reaction. Comparing the mass spectrum and retention time peak, more than 30 compounds in different oily extracts were qualitatively identified. Quantification of individual fatty acids was based on two different methods. Firstly, it was based on the received peak area, and the results were normalized without correction factor. Secondly, the quantification was based on external calibration curve, for 34 identified fatty acids. The method was validated, and the results, e.g., linearity, precision, limit of detection (LOD), and limit of quantification (LOQ), were presented.

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Cold Pressed Oils as Functional Food

Cited by 9 publications

References 35 publications

Comparative analysis of fatty acid composition in 84 accessions of flax (Linum usitatissimum L.)

Comparative analysis of fatty acid composition in 84 accessions of flax (Linum usitatissimum L.)

Reaction of winter varieties of false flax (Camelina sativa (L.) Crantz) to the varied sowing time

Fatty Acids Analysis Using Gas Chromatography-Mass Spectrometer Detector (GC/MSD) - Method Validation Based on Berry Seed Extract Samples

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