scholarly journals 903 LIPID COMPOSITION IN SWEETPOTATO (Ipomoea batatas L. Lam) STORAGE ROOTS RELATED TO CHILLING TOLERANCE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 563d-563
Author(s):  
Chana Phromtons ◽  
J. O. Garner
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Melting Point ◽  
Acid Composition ◽  
Ipomoea Batatas ◽  
Chilling Tolerance ◽  
Storage Roots ◽  
Total Fatty Acid Composition

Storage roots of `Beauregard' and Centennial' were analyzed for total fatty acid composition and fatty acid composition by lipid class. The glycolipid, monagalactosyldiglycerol, may have been involved in chilling tolerance of `Beauregard' storage roots. This lipid had over 70 percent low-melting point fatty acids, mostly linoleic acid and linolenic acid. No consistent differences in the composition of phospholipids could be related to the chilling responses of the two sweetpotato cultivars.

scholarly journals FATTY ACID COMPOSITION OF PLASMALEMMA LIPIDS ASSOCIATED WITH GENETIC VARIABILITY IN COLD TOLERANCE OF SWEETPOTATO IPOMOEA BATATAS. (L). LAM

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 441e-441
Author(s):  
Arambage Abesinghe ◽  
James O. Garner
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Ipomoea Batatas ◽  
Unsaturated Fatty Acids ◽  
Fatty Acid Content ◽  
Storage Conditions ◽  
Temperature Tolerance ◽  
Storage Roots

Storage roots of `Beauregard' and `Centennial' were used to identify varietal differences in fatty acid composition in plasmalemma lipids during storage conditions. Total plasmalemma fatty acid composition of glycolipids and phospholipids in storage roots of `Beauregard' and `Centennial' did not differ. The fatty acid composition of MGDG and DGDG in storage root plasmalemma was >50% unsaturated fatty acids in `Beauregard'. The high percentage of 18:2 (65.44%) fatty acid compared to `Centennial' (19.70%) and 79.35% total unsaturated fatty acid content in MGDG may contribute to low temperature tolerance in `Beauregard'. The higher percentages of 16:1 and 22:1 fatty acids in `Centennial' compared to `Beauregard' contributed to MGDG fatty acid unsaturation. However, these fatty acids have not been related to chilling tolerance.

FATTY ACID COMPOSITION OF SERUM LIPIDS IN HYPER- AND HYPOTHYROIDISM

1972 ◽  
Vol 71 (1) ◽  
pp. 62-72 ◽  
Author(s):  
Knut Kirkeby
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Acid Composition ◽  
Serum Lipids ◽  
Unsaturated Fatty Acids ◽  
Eicosatrienoic Acid ◽  
High Linoleic Acid ◽  
Absolute Concentrations

ABSTRACT The fatty acid composition of cholesterol esters, phospholipids, and triglycerides of the serum has been studied in groups of hyperthyroid and hypothyroid women and also in control material matched for age. In hyperthyroidism, a decrease in the proportions of linoleic acid and an increase in the proportions of some saturated and mono-unsaturated fatty acids were observed. When absolute concentrations were considered, it appeared that the decrease in linoleic acid was almost equivalent to the entire decrease in total fatty acids in the serum of the hyperthyroid patients. In hypothyroidism no changes were noted in the proportions of linoleic, saturated and mono-unsaturated fatty acids, and the absolute concentrations reflected the general increase in serum lipids. It is believed that these findings may be explained by the changes in lipid turnover which are known to occur in disturbances of thyroid function. In hyperthyroidism, they lead to a linoleic acid deficiency, while a sparing effect must be operating in hypothyroidism. The finding of relatively high linoleic acid values combined with hyperlipaemia in hypothyroidism seems to be characteristic of the condition, since other types of hyperlipaemia are almost invariably combined with low percentages of linoleic acid. Results regarding arachidonic and eicosatrienoic acid are consistent with increased synthesis in hyperthyroidism, and decreased synthesis in hypothyroidism.

Fatty Acid Composition of Yak (Bos grunniens) Cheese Including Conjugated Linoleic Acid andtrans-18:1 Fatty Acids

2008 ◽  
Vol 56 (5) ◽  
pp. 1654-1660 ◽  
Author(s):  
Mamun M. Or-Rashid ◽  
Nicholas E. Odongo ◽  
Bhishma Subedi ◽  
Pralhad Karki ◽  
Brian W. McBride
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Acid Composition ◽  
Bos Grunniens

scholarly journals The effect of restricted grazing on the fatty acid composition of ovine rnilk fat during early lactation

1980 ◽  
Vol 44 (1) ◽  
pp. 47-52 ◽  
Author(s):  
E. Payne ◽  
P. V. Rattray
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Acid Composition ◽  
Milk Fat ◽  
Short Chain Fatty Acids ◽  
Early Lactation ◽  
Rapid Rise ◽  
Major Increase

1. The fatty acid composition of milk fat of Coopworth sheep offered varying pasture allowances has been determined after 1, 14 and 35 d of lactation. Differences in fatty acids occurred, particularly between 1 and 14 d, with a major increase in C18:0 whilst C16:0, C14:0 and C18:3 showed decreases.2. When pasture allowances were restricted there were decreases in the short-chain fatty acids from C6 to C14 and an increase in C18:1 as has been observed previously for cattle. The C18:1:C10 value is a convenient measure of these changes and can be determined more rapidly than determining all the lower fatty acids.3. The increased demand for milk resulting from suckling twin lambs caused an increase in C18:1 and decreases in C10 and C12 due to an increased utilization of body reserves.4. The level of linoleic acid was much greater than has been previously observed in sheep given hay and contributes to the rapid rise in linoleic acid levels in lambs born under grazing conditions.

INVESTIGATIONS INTO THE PRODUCTION OF LIPIDS BY SUBMERGED CULTURES OF THE MUSHROOM TRICHOLOMA NUDUM: I. FATTY ACID COMPOSITION OF NEUTRAL LIPIDS AND PHOSPHOLIPIDS AS A FUNCTION OF TIME

1962 ◽  
Vol 40 (7) ◽  
pp. 847-855 ◽  
Author(s):  
D. C. Leegwater ◽  
C. G. Youngs ◽  
J. F. T. Spencer ◽  
B. M. Craig
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Linolenic Acid ◽  
Acid Composition ◽  
Neutral Lipids ◽  
Minor Component ◽  
Major Fatty Acid ◽  
Submerged Cultures

The production of neutral lipids and phospholipids by submerged cultures of the mushroom Tricholoma nudum, as well as the fatty acid composition of these two fractions, was studied as a function of time. The bulk of the neutral lipids was produced after 2 days when the organism appeared to be in a non-proliferative phase. The major fatty acids of the neutral lipids were palmitic, oleic, and linoleic acid (23–35% each); stearic acid was a minor component (8–13%); myristic, palmitoleic, and linolenic acid were present in small amounts (0.5–4.8%). The major fatty acid of the phospholipids was linoleic acid (55–70%); palmitic (15–19%), stearic (1.8–4.6%), and oleic (7–19%) acid were minor components; myristic, palmitoleic, and linolenic (0–2.3%) were present in small amounts. Linolenic acid was a major fatty acid (26–30%) only in the early stages of growth.A preliminary investigation was carried out with a 4-day-old culture to establish the identity of the various components of the neutral lipids and phospholipids. The neutral lipids were mainly triglycerides (92%). Small amounts of ergosterol esters (1%), free fatty acids (< 1%), ergosterol (1.7%), and unidentified non-saponifiable compounds were also present. The phospholipids contained phosphatidyl choline (59%) as the major component; phosphatidyl ethanolamine (26%), phosphatidyl serine and phosphatidic acid (7.8%), and an inositol containing phospholipid were minor components.Some of the techniques applied were specially developed for the present type of studies and are described in detail.

INVESTIGATIONS INTO THE PRODUCTION OF LIPIDS BY SUBMERGED CULTURES OF THE MUSHROOM TRICHOLOMA NUDUM: I. FATTY ACID COMPOSITION OF NEUTRAL LIPIDS AND PHOSPHOLIPIDS AS A FUNCTION OF TIME

1962 ◽  
Vol 40 (1) ◽  
pp. 847-855 ◽  
Author(s):  
D. C. Leegwater ◽  
C. G. Youngs ◽  
J. F. T. Spencer ◽  
B. M. Craig
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Linolenic Acid ◽  
Acid Composition ◽  
Neutral Lipids ◽  
Minor Component ◽  
Major Fatty Acid ◽  
Submerged Cultures

The production of neutral lipids and phospholipids by submerged cultures of the mushroom Tricholoma nudum, as well as the fatty acid composition of these two fractions, was studied as a function of time. The bulk of the neutral lipids was produced after 2 days when the organism appeared to be in a non-proliferative phase. The major fatty acids of the neutral lipids were palmitic, oleic, and linoleic acid (23–35% each); stearic acid was a minor component (8–13%); myristic, palmitoleic, and linolenic acid were present in small amounts (0.5–4.8%). The major fatty acid of the phospholipids was linoleic acid (55–70%); palmitic (15–19%), stearic (1.8–4.6%), and oleic (7–19%) acid were minor components; myristic, palmitoleic, and linolenic (0–2.3%) were present in small amounts. Linolenic acid was a major fatty acid (26–30%) only in the early stages of growth.A preliminary investigation was carried out with a 4-day-old culture to establish the identity of the various components of the neutral lipids and phospholipids. The neutral lipids were mainly triglycerides (92%). Small amounts of ergosterol esters (1%), free fatty acids (< 1%), ergosterol (1.7%), and unidentified non-saponifiable compounds were also present. The phospholipids contained phosphatidyl choline (59%) as the major component; phosphatidyl ethanolamine (26%), phosphatidyl serine and phosphatidic acid (7.8%), and an inositol containing phospholipid were minor components.Some of the techniques applied were specially developed for the present type of studies and are described in detail.

Platelet fatty acid composition in relation to fatty acid composition in plasma and to serum lipoprotein lipids in healthy subjects with special reference to the linoleic acid pathway

1985 ◽  
Vol 68 (5) ◽  
pp. 581-587 ◽  
Author(s):  
M. Boberg ◽  
L. B. Croon ◽  
I.-B. Gustafsson ◽  
B. Vessby
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Acid Composition ◽  
Plasma Lipid ◽  
Monounsaturated Fatty Acids ◽  
Serum Lipoprotein ◽  
Relative Percentage ◽  
Lipoprotein Lipids

1. The fatty acid composition in platelet phospholipids and in the plasma lipid esters as well as the serum lipoprotein lipid concentrations were determined in 67 healthy male subjects in order to establish the relationships between blood lipids and platelets. 2. A positive correlation was found between the concentrations of the triglyceride rich serum lipoprotein lipids and the relative percentage of saturated and monounsaturated fatty acids in plasma. The correlations were also positive between the serum high density lipoprotein-cholesterol concentration and the relative content of linoleic acid in the plasma cholesterol esters and phospholipids. 3. Negative correlations were found between the relative percentage of saturated and monounsaturated fatty acids in the plasma lipid esters versus linoleic acid in plasma and in the platelets. On the other hand there were positive correlations between linoleic acid in the plasma lipid esters and in the platelet phospholipids. These results indicate a direct dietary influence on the platelet phospholipid fatty acid composition. 4. The correlations between the fatty acids of the n −6 series within plasma and platelets as well as between plasma and platelets indicate that a high linoleic acid content is not associated with an increased arachidonic acid concentration. The results also indicate that the limiting metabolic step in the conversion of linoleic acid into arachidonic acid may be located at different levels in plasma and in the platelets.

scholarly journals Variations in fatty acid composition and oxidative stability of hazelnut (Corylus avellana L.) varieties stored by traditional method

2019 ◽  
Vol 70 (1) ◽  
pp. 288 ◽  
Author(s):  
H. Karaosmanoğlu ◽  
N. Ş. Üstün
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Free Fatty Acids ◽  
Acid Composition ◽  
Storage Period ◽  
Peroxide Number ◽  
External Interference

In this study, the changes in fatty acid composition, peroxide number, free fatty acids, oleic acid/ linoleic acid (O/L) and iodine value (IV) were investigated during the traditional storage of hazelnuts. The samples were selected from Giresun Quality Tombul, Kara and Sivri hazelnut varieties with economical prescription. Samples were stored according to the conventional methods in external interference-free warehouses until the next harvest time. At the end of storage, the amount of oleic acid in all varieties increased while the amount of linoleic acid decreased. Even though an increase in the free fatty acids and peroxide number in all types of hazelnuts during storage was determined, the values were considerably lower than the rancidity limits at the end of the storage period. As a result of the study it was observed that the hazelnut shell is an important preservative during storage and that hazelnuts can be preserved until the next harvest period under simple storage conditions.

scholarly journals Quantitative Trait Loci and Candidate Genes Associated with Fatty Acid Content of Watermelon Seed

2014 ◽  
Vol 139 (4) ◽  
pp. 433-441 ◽  
Author(s):  
Geoffrey Meru ◽  
Cecilia McGregor
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Palmitic Acid ◽  
Acid Composition ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Watermelon Seed

Seed oil percentage (SOP) and fatty acid composition of watermelon (Citrullus lanatus) seeds are important traits in Africa, the Middle East, and Asia where the seeds provide a significant source of nutrition and income. Oil yield from watermelon seed exceeds 50% (w/w) and is high in unsaturated fatty acids, a profile comparable to that of sunflower (Helianthus annuus) and soybean (Glycine max) oil. As a result of novel non-food uses of plant-derived oils, there is an increasing need for more sources of vegetable oil. To improve the nutritive value of watermelon seed and position watermelon as a potential oil crop, it is critical to understand the genetic factors associated with SOP and fatty acid composition. Although the fatty acid composition of watermelon seed is well documented, the underlying genetic basis has not yet been studied. Therefore, the current study aimed to elucidate the quality of watermelon seed oil and identify genomic regions and candidate genes associated with fatty acid composition. Seed from an F2 population developed from a cross between an egusi type (PI 560023), known for its high SOP, and Strain II (PI 279261) was phenotyped for palmitic acid (16:0), stearic acid (18:0), oleic acid (18:1), and linoleic acid (18:2). Significant (P < 0.05) correlations were found between palmitic and oleic acid (0.24), palmitic and linoleic acid (–0.37), stearic and linoleic acid (–0.21), and oleic and linoleic acid (–0.92). A total of eight quantitative trait loci (QTL) were associated with fatty acid composition with a QTL for oleic and linoleic acid colocalizing on chromosome (Chr) 6. Eighty genes involved in fatty biosynthesis including those modulating the ratio of saturated and unsaturated fatty acids were identified from the functionally annotated genes on the watermelon draft genome. Several fatty acid biosynthesis genes were found within and in close proximity to the QTL identified in this study. A gene (Cla013264) homolog to fatty acid elongase (FAE) was found within the 1.5-likelihood-odds (LOD) interval of the QTL for palmitic acid (R2 = 7.6%) on Chr 2, whereas Cla008157, a homolog to omega-3-fatty acid desaturase and Cla008263, a homolog to FAE, were identified within the 1.5-LOD interval of the QTL for palmitic acid (R2 = 24.7%) on Chr 3. In addition, the QTL for palmitic acid on Chr 3 was located ≈0.60 Mbp from Cla002633, a gene homolog to fatty acyl- [acyl carrier protein (ACP)] thioesterase B. A gene (Cla009335) homolog to ACP was found within the flanking markers of the QTL for oleic acid (R2 = 17.9%) and linoleic acid (R2 = 21.5%) on Chr 6, whereas Cla010780, a gene homolog to acyl-ACP desaturase was located within the QTL for stearic acid (R2 = 10.2%) on Chr 7. On Chr 8, another gene (Cla013862) homolog to acyl-ACP desaturase was found within the 1.5-LOD interval of the QTL for oleic acid (R2 = 13.5%). The genes identified in this study are possible candidates for the development of functional markers for application in marker-assisted selection for fatty acid composition in watermelon seed. To the best of our knowledge, this is the first study that aimed to elucidate genetic control of the fatty acid composition of watermelon seed.

scholarly journals (174) Determination of Fatty Acid Composition in 120 Korean Native Rice Cultivars

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1082D-1082 ◽  
Author(s):  
Kyoung-Shim Cho ◽  
Hyun-Ju Kim ◽  
Jae-Ho Lee ◽  
Jung-Hoon Kang ◽  
Young-Sang Lee
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Linolenic Acid ◽  
Acid Composition ◽  
Arachidic Acid ◽  
Brown Rice ◽  
Rice Cultivars

Fatty acid is known as a physiologically active compound, and its composition in rice may affect human health in countries where rice is the major diet. The fatty acid composition in brown rice of 120 Korean native cultivars was determined by one-step extraction/methylation method and GC. The average composition of 9 detectable fatty acids in tested rice cultivars were as followings: myristic acid; 0.6%, palmitic acid; 21.2%, stearic acid; 1.8%, oleic acid; 36.5%, linoleic acid; 36.3%, linolenic acid; 1.7%, arachidic acid; 0.5%, behenic acid; 0.4%, and lignoceric acid; 0.9%. Major fatty acids were palmitic, oleic and linoleic acid, which composed around 94%. The rice cultivar with the highest linolenic acid was cv. Jonajo (2.1%), and cvs. Pochoenjangmebye and Sandudo showed the highest composition of palmitic (23.4%) and oleic acid (44.8%), respectively. Cultivar Pochuenjangmebye exhitibed the highest composition of saturated fatty acid (28.1%), while cvs. Sandudo and Modo showed the highest mono-unsaturated (44.8%) and poly-unsaturated (42.4%) fatty acid composition, respectively. The oleic acid showed negative correlation with palmitic and linoleic acid, while positive correlation between behenic and lignoceric acids was observed.

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