COMPONENT FATTY ACIDS OF RAPESEED OIL

1951 ◽  
Vol 29 (10) ◽  
pp. 871-876 ◽  
Author(s):  
C. G. Youngs ◽  
T. M. Mallard ◽  
B. M. Craig ◽  
H. R. Sallans
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Erucic Acid ◽  
Acid Composition ◽  
Rapeseed Oil ◽  
Distillation Column ◽  
Methyl Esters ◽  
Eicosenoic Acid ◽  
Western Canada

The fatty acid composition of the oil from Argentine rapeseed grown in Western Canada was investigated by converting the glyceride esters to methyl esters and distilling the latter in a Podbielniak Heligrid distillation column. Analyses of the fractions showed 6 to 10% more eicosenoic acid and 7 to 10% less erucic acid than was previously reported for rapeseed oils.

VARIETAL AND ENVIRONMENTAL EFFECTS ON RAPESEED: II. FATTY ACID COMPOSITION OF THE OIL

1959 ◽  
Vol 39 (4) ◽  
pp. 437-442 ◽  
Author(s):  
B. M. Craig ◽  
L. R. Wetter
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Liquid Phase ◽  
Erucic Acid ◽  
Acid Composition ◽  
Environmental Effects ◽  
Western Canada ◽  
Major Variation ◽  
Low Erucic Acid

The content of C16, C18, C20, C22 fatty acids were measured by gas liquid phase chromatography and linoleic and linolenic acids by spectral analyses on the oil from seven varieties of rapeseed grown at seven stations in Western Canada. Significant differences were found between varieties for all oil properties except the content of C16 acids. The major variation occurred in C18, C22 and linoleic acids with lesser amounts in the C20 and linolenic acids. The varieties Golden, Argentine, Regina II and Swedish are classed as high, Gute and Arlo as intermediate, and Polish as low erucic acid oils.

scholarly journals Comparative Study on Quality Characteristics and Variations in Fatty Acid Composition of Different Varieties of Rapeseed and Mustard (Brassica spp.)

2018 ◽  
pp. 1-7
Author(s):  
Md. Delwar Hossain ◽  
Kamal Uddin Ahmed ◽  
Mst. Farhana Nazneen Chowdhury ◽  
Alak Barman ◽  
Arif Ahmed ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Erucic Acid ◽  
Acid Composition ◽  
Acid Value ◽  
Quality Characteristics ◽  
Brassica Spp ◽  
Liquid Chromatographic

With a view to studying the qualitative features and the variations in fatty acid composition of 6 rapeseed (B. campestris and B. napus) and mustard (B. juncea) varieties, an experiment was conducted. Among these varieties, BARI Sarisha-14 presented the value of 168.4 which was recorded the highest. Both BARI Sarisha-11 and BARI Sarisha-14 was found with the highest iodine value of 39.44; and the highest amount of acid value was recorded from BARI Sarisha-11 (1.867). Gas-liquid chromatographic (GLC) method has been used to determine the composition of essential fatty acid in the seeds of Brassica spp. (L.). From the GLC analysis, it was found that erucic acid, oleic acid, linoleic acid and lenolenic acid were the prime fatty acids in all the varieties. Erucic acid was in the range of 41.11 – 51.28%, oleic acid was the highest both in BARI Sarisha-11 and BARI Sarisha- 13 contained (18.69%), while BARI Sarisha-9 contained the highest amount of the unsaturated linoleic (17.75%)  and linolenic (15.83%) acids. Moreover, palmitic acid, stearic acid and archidic acid were also present in small amount.

A 3-ketoacyl-CoA synthase 11 (KCS11) homolog from Malania oleifera synthesizes nervonic acid in plants rich in 11Z-eicosenoic acid

2020 ◽  
Author(s):  
Zhuowei Li ◽  
Shijie Ma ◽  
Huan Song ◽  
Zheng Yang ◽  
Cuizhu Zhao ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Erucic Acid ◽  
Acid Composition ◽  
Eicosenoic Acid ◽  
Nervonic Acid ◽  
Endangered Tree ◽  
Acid Accumulation ◽  
Pharmaceutical Industries

Abstract Nervonic acid (24:1) is a major component in nerve and brain tissues and it has important applications in food and pharmaceutical industries. Malania oleifera seeds contain about 40% nervonic acid. However, the mechanism of nervonic acid biosynthesis and accumulation in seeds of this endangered tree species remains unknown. In this study, developmental changes in fatty acid composition within embryos and their pericarps were investigated. Nervonic acid proportions steadily increased in developing embryos but 24:1 was not detected in pericarps at any stage. Two 3-ketoacyl-CoA synthase (KCS) homologs have been isolated from M. oleifera developing seeds by homologous cloning methods. Both KCSs are expressed in developing embryos but not detected in pericarps. Based on a phylogenetic analysis, these two KCSs were named as MoKCS4 and MoKCS11. Seed-specific expression of the MoKCS11 in Arabidopsis thaliana led to about 5% nervonic acid accumulation, while expression of the MoKCS4 did not show an obvious change in fatty acid composition. It is noteworthy that the transformation of the same MoKCS11 construct into two Brassica napus cultivars with high erucic acid did not produce the expected accumulation of nervonic acid, although expression of MoKCS11 was detected in the developing embryos of transgenic lines. In contrast, overexpression of MoKCS11 results in similar level of nervonic acid accumulation in camelina, a species which contains a similar level of 11Z-eicosenoic acid as does Arabidopsis thaliana. Taken together, the MoKCS11 may have a substrate preference for 11Z-eicosenoic acid, but not for erucic acid, in planta.

Chloroplast Fatty Acid Composition in Mediterranean Populations of the Marine Chlorophyte, Anadyomene stellata

2000 ◽  
Vol 55 (7-8) ◽  
pp. 569-575 ◽  
Author(s):  
Debra L. Bemis ◽  
Vassilios Roussis ◽  
Constantinios Vagias ◽  
Robert S. Jacobs
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Florida Keys ◽  
Mediterranean Populations ◽  
Total Fatty Acids ◽  
Of Greece

Abstract Chloroplasts isolated from three populations of the tropical marine Chlorophyte Anadyomene stellata collected off the coast of Greece were analyzed for their fatty acid composition. Following the preparation of fatty acid methyl esters, GC-MS (El) was utilized to identify the fatty acids present in each population. Including isomers, the fatty acid profile of all three algal populations was comprised of 19 fatty acids (4 saturated, 6 monounsaturated, 9 polyunsaturated) with palmitic acid present in the highest amounts (25-27% of total fatty acids). Analysis of variance revealed significant differences amongst the three populations in the percent of total fatty acids for twelve of the fatty acids. High levels of C20 PUFAs, an atypical observation in Chlorophytes, were observed in all three populations comprising approximately 17% of total fatty acids. Furthermore a 14:2 PUFA , apparently rare in marine macrophytic Chlorophytes, was identified in significant quantities. Surprisingly, we did not find any of the conjugated tetraene containing fatty acids that we previously identified in the A. stellata populations studied from the Florida Keys.

Retail lamb fat composition in western Canada

2019 ◽  
Vol 99 (4) ◽  
pp. 971-974 ◽  
Author(s):  
M.E.R. Dugan ◽  
V. Salazar ◽  
D.C. Rolland ◽  
P. Vahmani ◽  
J.L. Aalhus ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
New Zealand ◽  
Acid Composition ◽  
North American ◽  
Western Canada ◽  
Fat Composition ◽  
Fatty Acid Compositions

The fatty acid composition of retail lamb backfat commonly available in Western Canada was analyzed, including 16 lambs collected from a slaughter plant in central Alberta, and backfat collected from racks and chops imported from Australia (n = 8) and New Zealand (n = 8). Lamb fat from New Zealand was the richest source of vaccenic and rumenic acids. Both New Zealand and Australian lamb were the richest source of n-3 fatty acids. North American lamb was richer in t10-18:1, but a subset had fatty acid compositions similar to New Zealand lamb.

METHODS OF BREEDING FOR OIL QUALITY IN RAPE

1963 ◽  
Vol 43 (3) ◽  
pp. 271-275 ◽  
Author(s):  
R. K. Downey ◽  
B. L. Harvey
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Erucic Acid ◽  
Acid Composition ◽  
Oil Quality ◽  
Dominant Gene ◽  
Erucic Acid Content ◽  
Oil Crops ◽  
Single Seeds

Reciprocal crosses were made between plants of Brassica napus with seed oil containing 40 and 0 per cent erucic acid. Gas liquid chromatographic analysis snowed an erucic acid content of 22 to 24 per cent in the crossed seeds. These results indicate that dominant gene action is absent and that fatty acid composition of the oil is controlled by the developing embryo. Thus the seed on an F1 plant constitutes an F2 population.Methods were developed to determine the fatty acid composition of oil from single seeds and from one cotyledon of an embryo. The analysis of a single cotyledon allows the genotype to be determined one generation earlier than if bulk samples are used, and the remainder of the seed may be grown into a normal plant. It is suggested that this half-seed technique may be used to determine the inheritance of other fatty acids in Brassica, and may also be applied to breeding other oil crops where the embryo, rather than the maternal sporophyte, controls the synthesis of fatty acids.

Fatty Acid Composition of Turkey Meat Sucuk (Soudjuck), Salami, and Sausages

2008 ◽  
Vol 4 (2) ◽  
Author(s):  
Semih Otles ◽  
Ozlem Cagindi
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Acid Composition ◽  
Unsaturated Fatty Acids ◽  
Methyl Esters ◽  
Saturated Fatty Acids ◽  
Turkey Meat ◽  
Oleic And Linoleic Acids

In this paper, the fatty acid composition of turkey meat sucuk (soudjuck), salami, and sausages were determined and compared with each other. The fatty acids methyl esters of each product were identified by capillary gas chromatography. Most of the fatty acids in sucuk (soudjuck) samples were monosaturated; however in salami and sausages samples most of were mono and di-unsaturated. Saturated fatty acids in sucuk (soudjuck) samples followed, having the palmitic and stearic acids as their major components and had a range of 229.7-385.2 g kg-1 and 87.6-215.9 g kg-1. In salami and sausages samples, unsaturated fatty acids, the oleic and linoleic acids were the major components and had a range of 170.0-542.0 g kg-1 and 151.5-353.0 g kg-1. PUFA (polyunsaturated fatty acids) were found for sausages in the highest amount with linoleic acids concentration. Turkey meat salami and sausages presented a higher content of unsaturated and polyunsaturated fatty acids than turkey meat sucuk (soudjuck).

Comparison of lipid contents and fatty acid profiles of freshwater fish from the Atatürk Dam Lake / Atatürk Baraj Gölü’ndeki tatlısu balıklarının lipid içeriği ve yağ asidi profilinin karşılaştırılması

2016 ◽  
Vol 41 (3) ◽  
Author(s):  
Semra Kaçar ◽  
Mehmet Başhan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Acid Composition ◽  
Lipid Content ◽  
Methyl Esters ◽  
Fatty Acid Profiles ◽  
Liza Abu ◽  
Atatürk Dam Lake

AbstractObjective: The objective of the study was to examine the lipid levels, fatty acid profiles (especially EPA and DHA which play an important role in the prevention of a wide variety disorders such as; coronary heart disease, hypertension, rheumatoid arthritis, breast and colon cancer, Alzheimer disease, inflammation and autoimmune disorders) and n-3/n-6 ratio of some freshwater fish in Ataturk Dam Lake.Methods: Samples of 12 fish species from the Ataturk Dam Lake (Turkey) were investigated for their fat content and fatty acid composition (Aspius vorax, Carasobarbus luteus, Carassius gibelio, Liza abu, Acanthobrama marmid, Barbus xanthopterus, Cyprinion macrostomum, Carassius auratus, Calcalburnus mossulensis, Capoeta trutta, Mastacembelus simack, Chondrostoma regium). Total lipids were extracted with 10 ml of chloroform-methanol (2/1v/v). Samples containing muscle lipid were transesterified with acidified methanol. The fatty acid methyl esters were extracted with hexane. Fatty acids were detected by gas chromatography (GC).Results: The lipid content of species ranged from 0.78% to 2.51%. The highest lipid content was found in female C. trutta (2.51%). The major SFAs were myristic acid (C14:0), palmitic acid (C16:0) and stearic acid (C18:0). Oleic acid (C18:1 n-9) and palmitoleic acid (C16:1 n-7) were the prominent MUFA. The dominant PUFAs were linoleic acid (LA, C18:2 n-6), linolenic acid (ALA, C18:3 n-3), arachidonic acid (AA, C20:4 n-6), eicoesapentaenoic acid (EPA, C20:5 n-3) and docoesahexaenoic acid (DHA, C22:6 n-3). The ratio of n-3/n-6 PUFAs ranged from 1.22 to 4.71.Conclusion: In this study, the fatty acid composition varied between different species In addition, the highest n-3/n-6 ratios were observed in female C. trutta, C. mossulensis, C. regium and A. vorax. Therefore, these species are economically important fish considering n-3 fatty acids and n-3/n-6 ratios.

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