Relative nutritional value of various dietary fats and oils

Masson, Lilia

doi:10.1007/bf02582351

Cited by 9 publications

(6 citation statements)

References 50 publications

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“…These components are associated with off-flavours and poor oil stability (Rackis et al 1979). Hydrogenation lowers the concentration of LA to less than 30 g kg -1 , and improves oil stability (Mounts et al 1978), but also produces significant amounts of undesirable trans fatty acids (Masson 1981). Heat treatment is used most frequently to eliminate LX activity from soybean seed.…”

mentioning

confidence: 99%

Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits

Reinprecht¹,

Rajcan²,

Poysa³

et al. 2005

Can. J. Plant Sci.

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Reinprecht, Y., Rajcan, I., Poysa, V. W., Ablett, G. R. and Pauls, K. P. 2005. Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits. Can. J. Plant Sci. 85: 593-602. To improve oxidative stability of soybean oil and reduce off-flavours, we previously developed low linolenic acid, lipoxygenase-free (LLA.3lx) soybean germplasm. The objectives of this study were to characterize the patterns of inheritance and determine the relationships between the low linolenic acid (LLA) trait derived from the lines RG10 and PI 361088B and seed lipoxygenase nulls (3lx) from a triple null line OX948 that were used to create the new LLA.3lx germplasm. Reciprocal crosses between RG10 and OX948 and between PI 361088B and OX948 were made and populations derived from them were evaluated for their fatty acid profiles and seed lipoxygenases (LX) at the F 2 , F 5 and F 6 generations. Both RG10 and PI 361088B contain a single gene that controls linolenic acid (LA) content with alleles acting in an additive manner. No significant cytoplasmic effects were observed on LA content. The LLA trait was highly heritable in both RG10 × OX948 (RO) and PI 361088B × OX948 (PO) crosses and stable in different environments (Belize and Ontario, Canada). The three seed LX were each controlled by single genes, but lipoxygenase 1 (Lx1) and lipoxygenase 2 (Lx2) were tightly linked. No significant correlations were observed between LA content and seed LX. The simple and independent inheritance of LA and seed LX in these crosses should simplify breeding for soybean cultivars that are resistant to oxidative degradation. La teneur en LA ne subit aucune influence significative du cytoplasme. Le caractère LLA se transmet très facilement dans les croisements RG10 × OX948 (RO) et PI 361088B × OX948 (PO), et reste stable dans divers milieux (Bélize, Ontario au Canada). Les trois lipoxygénases de la graine sont régulées par des gènes uniques, mais la lipoxygénase 1 (Lx1) et la lipoxygénase 2 (Lx2) sont étroitement associées. Les auteurs n'ont observé aucune corrélation significative entre la teneur en LA et les LX de la graine. L'héritabilité simple et indépendante des deux caractères dans les croisements devrait simplifier l'hybridation de cultivars résistants à la dégradation par l'oxydation.

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mentioning

confidence: 99%

Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits

Reinprecht¹,

Rajcan²,

Poysa³

et al. 2005

Can. J. Plant Sci.

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“…However, this is not necessarily a result of the increase in the consumption of fats proper (butter, margarine, vegetable oils), but rather the considerable rise in the proportion of so-called hidden fats in the diet (Fondu 1981, Masson 1981. In the Finnish diet, these hidden fats can constitute as much as over 50 % of the total intake of fat (Anon 1981).…”

Section: Breeding For Polyunsaturatedfatty Acidsmentioning

confidence: 99%

An analytical and breeding study on fatty acids in summer turnip rape (brassica campestris L. var. annua)

Laakso

1986

AFSci

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The fatty acid composition of the seed oil of summer turnip rape (Brassica campestris L. var. annua) was investigated by gas liquid chromatography (GLC). The reliability of conventional sampling methods in capillary GC was compared with that of the new on column and PTV (programmed temperature vaporizer) techniques, with particular reference to the determination of fatty acid variation. In order to develop new, well-adapted turnip rape strains with improved oil quality, a breeding programme for a higher linoleic acid content, based on individual plant selection, was performed in 1978—85. The results showed that the conventional sampling techniques involving sample transfer to a hot injector were very unreliable as regards precision and accuracy. This was especially the case in the determination of trace fatty acid levels. The PTV methods with splitless and solvent split mode were as precise as cold on-column injection. The PTV sampling modifications, which are all superior to classical techniques, were even more suitable for routine analyses than on-column injection, where several restrictions are met. The analytical error with PTV for most of the compounds represented less than 1 % of the variation found for fatty acids within a turnip rape variety. The breeding experiments indicated that the level of linoleic acid can be increased under open-pollinated conditions in the field without affecting the α-linolenic acid content. The greenhouse conditions, on the other hand, were found to have a considerable environmental influence on the variation of these compounds, resulting in no response to linoleic-acid selection. In field trials, several strains with yields comparable to the varieties commonly cultivated in Finland were selected with a higher linoleic acid content (up to25 %). Most of them also contained no erucic acid. The new evidence concerning its beneficial physiological effects indicate that rapeseed oil should be considered as a serious alternative among sources of essential fatty acids. Such aspects should also be taken into account in future breeding of rapeseed fatty acids.

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“…Phytochemical components of plants are responsible for protecting the plants against microbial infections by pests (Mason, 1981;Obadomi and Ochuko, 2001;Van-Burden and Robinson, 1981).…”

Section: Introductionmentioning

confidence: 99%

Physiochemical and phytochemical analysis of oil from Persea american, Garcinia kola, and Annona muricata seeds

Momodu¹,

Jideonwo²,

Odidi³

et al. 2021

Direct Research Journal of Agriculture and Food Science

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Oils from Annona muricata (soursop), Persea americana (avocado pear), and Garcinia kola (bitter kola) seeds were extracted using n-hexane as solvent. The different oils were analyzed and evaluated to determine their physicochemical characteristics using only the nhexane extract. The results of the physicochemical analysis showed the following values for Annona muricata (soursop), Persea americana (avocado pear) and Garcinia kola (bitter kola) oils respectively:

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Relative nutritional value of various dietary fats and oils

Cited by 9 publications

References 50 publications

Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits

Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits

An analytical and breeding study on fatty acids in summer turnip rape (brassica campestris L. var. annua)

Physiochemical and phytochemical analysis of oil from Persea american, Garcinia kola, and Annona muricata seeds

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