Fatty acid compositions of the neutral lipids of some varieties ofCarthamus tinctorius

1987 ◽  
Vol 23 (2) ◽  
pp. 251-252 ◽  
Author(s):  
S. M. Aslanov ◽  
S. Sh. Mamedov
Keyword(s):  
Fatty Acid ◽  
Neutral Lipids ◽  
Fatty Acid Compositions

LIPID EXTRACTION AND DISTRIBUTION STUDIES OF EGG YOLK LIPOPROTEINS

1963 ◽  
Vol 41 (1) ◽  
pp. 657-666 ◽  
Author(s):  
W. G. Martin ◽  
N. H. Tattrie ◽  
W. H. Cook
Keyword(s):  
Fatty Acid ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Egg Yolk ◽  
Low Density ◽  
Cholesterol Esters ◽  
Density Fraction ◽  
Distribution Studies ◽  
Egg Yolk Lipoproteins ◽  
Fatty Acid Compositions

The three lipoproteins of egg yolk, α- and β-lipovitellin and the low-density fraction (LDF), have been isolated and their lipid compositions determined. α- and β-lipovitellin comprise 22 to 26% lipid, of which 61% is phospholipid, 35% is triglyceride, and 4% is cholesterol and its esters. LDF contains about 89% lipid having 27% phospholipid, 69% triglyceride, and 4% cholesterol and cholesterol esters. The phospholipids of the three lipoproteins are similar, i.e., 74% lecithins, 18% cephalins, and 8% minor phospholipids. The fatty acid compositions of the neutral lipids, lecithins, and cephalins of the α- and β-lipovitellins were also similar, with only minor differences.Gentle extraction of the LDF solutions with ethyl ether readily removes about 85% of the total lipid and 55% of the phospholipid, while subsequent changes are slow. The lipoprotein residue contains 52% lipid which is mostly phospholipid; when the residual ether is removed, five sedimenting components are observed in the ultracentrifuge.

LIPID EXTRACTION AND DISTRIBUTION STUDIES OF EGG YOLK LIPOPROTEINS

1963 ◽  
Vol 41 (3) ◽  
pp. 657-666 ◽  
Author(s):  
W. G. Martin ◽  
N. H. Tattrie ◽  
W. H. Cook
Keyword(s):  
Fatty Acid ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Egg Yolk ◽  
Low Density ◽  
Cholesterol Esters ◽  
Density Fraction ◽  
Distribution Studies ◽  
Egg Yolk Lipoproteins ◽  
Fatty Acid Compositions

The three lipoproteins of egg yolk, α- and β-lipovitellin and the low-density fraction (LDF), have been isolated and their lipid compositions determined. α- and β-lipovitellin comprise 22 to 26% lipid, of which 61% is phospholipid, 35% is triglyceride, and 4% is cholesterol and its esters. LDF contains about 89% lipid having 27% phospholipid, 69% triglyceride, and 4% cholesterol and cholesterol esters. The phospholipids of the three lipoproteins are similar, i.e., 74% lecithins, 18% cephalins, and 8% minor phospholipids. The fatty acid compositions of the neutral lipids, lecithins, and cephalins of the α- and β-lipovitellins were also similar, with only minor differences.Gentle extraction of the LDF solutions with ethyl ether readily removes about 85% of the total lipid and 55% of the phospholipid, while subsequent changes are slow. The lipoprotein residue contains 52% lipid which is mostly phospholipid; when the residual ether is removed, five sedimenting components are observed in the ultracentrifuge.

scholarly journals Variation in Lipid Content and Glyceride Compositions of Four Different Varieties of Corn (Zea mays L.) Oil

1970 ◽  
Vol 42 (2) ◽  
pp. 223-228 ◽  
Author(s):  
MM Uddin ◽  
MS Rahman ◽  
GM Ahmed ◽  
MA Hossain ◽  
A Samad
Keyword(s):  
Zea Mays ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Neutral Lipids ◽  
Gas Liquid Chromatography ◽  
Percentage Composition ◽  
Silicic Acid Chromatography ◽  
Fatty Acid Compositions

Oil extracted from four different varieties of corn (Zea mays) were evaluated in terms of lipid, glyceride and fatty acid compositions. The total lipid extracts were fractionated into lipid classes by silicic acid chromatography. The neutral lipids were found to be 96.80 - 97.50 %; glycolipid 1.50-1.66 %; phospholipid 0.80-0.95 % respectively. The fatty acid composition of triglyceride (TG) fraction was analysed by gas liquid chromatography (GLC). The percentage composition of fatty acid were found to be linoleic acid 35.62 to 49.5 %, palmitic acid 8.7 to 9.9 %, stearic acid 1.9 to 2.3 %, myristic acid 0.9 to 1.6 % and linolenic acid 0 to 2.2 %. Bangladesh J. Sci. Ind. Res. 42(2), 223-228, 2007

scholarly journals Lipid Class and Fatty Acid Compositions of Dried Sea Cucumber Apostichopus japonicus

2019 ◽  
Vol 11 (1) ◽  
pp. 79-86
Author(s):  
Md Anisuzzaman ◽  
Feng Jin ◽  
Kamrunnahar Kabery ◽  
U-Cheol Jeong ◽  
Hyun-Chol Jung ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Lipid Class ◽  
Sea Cucumber ◽  
Neutral Lipids ◽  
Apostichopus Japonicus ◽  
Positional Distribution ◽  
Dry Weight ◽  
Total Lipids ◽  
Fatty Acid Compositions

Introduction: Sea cucumber, Apostichopus japonicus, is becoming popular around the world due to its nutritional and medicinal properties. There are still no detailed chemical studies of the lipid class, glycolipids compositions of sea cucumber. Methods: This study was conducted to determine the lipid class and glycolipid compositions of dried sea cucumber, A. japonicus, and analyze fatty acid compositions of Monogalactosyl Diglycerides (MGDG), Steryl Glycosides (SG) and Sulfoquinovosyl Diglycerides (SQDG). Total lipids of sea cucumber were extracted by Bligh and Dyer method and Sep-Pak Silica plus long cartridge, and Thin Layer Chromatography (TLC) silica gel G-60 F254 was used for the separation of different lipid classes and glycolipid compositions. The composition of fatty acids was analyzed by GC. Results & Conclusion: The level of total lipids in the dried sea cucumber, Apostichopus japonicus, was 4 ± 1% of dry weight (w/w) and the amount of neutral lipids, glycolipids and phospholipids was 31 ± 1%, 29 ± 1% and 40 ± 1% of the total lipids (w/w), respectively. MGDG, SG and SQDG were the major glycolipids, and the contents were 37.5 ± 0.3%, 33.8 ± 0.5% and 23.6 ± 0.7% of the total glycolipids (w/w), respectively and significantly higher than other glycolipids (p < 0.05). SQDG contained much higher Arachidonic Acid (AA), Eicosapentaenoic Acid (EPA) and MGDG contained higher Docosahexaenoic Acid (DHA) compared with SG (p < 0.05). Further investigation is required to understand the positional distribution of fatty acids and molecular species in MGDG, SG and SQDG in detail.

Comparison of Fatty Acid Compositions and Tocopherols in Perilla germplasm of South Korea

2017 ◽  
Author(s):  
JS Sung ◽  
YJ Jeong ◽  
DJ Kim ◽  
YY Lee ◽  
YA Jeon ◽  
...  
Keyword(s):  
Fatty Acid ◽  
South Korea ◽  
Fatty Acid Compositions

Serum Fatty Acid Compositions and Lipid Concentrations and Their Correlations.

1996 ◽  
Vol 20 (2) ◽  
pp. 149-159 ◽  
Author(s):  
Toshichika TAKITA ◽  
Kahoru NAKAMURA ◽  
Mitsuru KIMIRA ◽  
Norihiro YAMADA ◽  
Yoshie KOBAYASHI ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Serum Fatty Acid ◽  
Fatty Acid Compositions

scholarly journals Effects of exogenous lipids and cold acclimation on lycopene production and fatty acid composition in Blakeslea trispora

AMB Express ◽  
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Feng Lingran ◽  
Wang Qiang ◽  
Yu Xiaobin ◽  
Fred Kwame
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Neutral Lipids ◽  
Feedback Regulation ◽  
Total Content ◽  
Blakeslea Trispora ◽  
Plant Oils ◽  
Intracellular Lipids ◽  
Lycopene Production

Abstract Exogenous lipids serving as stimulators to improve lycopene production in Blakeslea trispora have been widely reported. However, the selection basis of exogenous lipids and their effects on intracellular lipids are not very clear. In this study, five plant oils with different fatty acid compositions were selected to investigate their effects on lycopene production, fatty acid composition and the desaturation degree of intracellular lipids. Among the oils, soybean oil, with a fatty acid composition similar to that of mycelium, exhibited the best stimulating effect on lycopene formation (improvement of 82.1%). The plant oils enhanced the total content of intracellular lipids and the desaturation degree of reserve lipids due to the alteration of fatty acid composition, especially in neutral lipids. Lycopene production was increased with the improved desaturation degree of intracellular lipids, which may be attributed to the enhancement of storage capacity for lycopene in storage lipid, thus reducing the feedback regulation of free lycopene. In addition, the increase of the desaturation degree of reserve lipids through temperature-changing fermentation also enhanced lycopene production. The present study could serve as a basis for a better understanding of the relationship between the fatty acid composition of reserve lipids and lycopene production.

Fatty Acid Data and Crop Surveys Indicate Sources of Red Sunflower Seed Weevil (Coleoptera: Curculionidae), Populations and Suggest Strategies for Management

2020 ◽  
Author(s):  
Jarrad R Prasifka ◽  
Beth Ferguson ◽  
James V Anderson
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Sunflower Seed ◽  
Cultural Practices ◽  
High Oleic ◽  
Fatty Acid Data ◽  
Smicronyx Fulvus ◽  
Combined Data ◽  
Fatty Acid Compositions

Abstract The red sunflower seed weevil, Smicronyx fulvus L., is a univoltine seed-feeding pest of cultivated sunflower, Helianthus annuus L. Artificial infestations of S. fulvus onto sunflowers with traditional (&lt;25% oleic acid), mid-oleic (55–75%), or high oleic (&gt;80%) fatty acid profiles were used to test if fatty acids could be used as natural markers to estimate the proportion of weevils developing on oilseed sunflowers rather than wild Helianthus spp. and confection (non-oil) types. Oleic acid (%) in S. fulvus confirmed the fatty acid compositions of mature larvae and weevil adults reflected their diets, making primary (oleic or linoleic) fatty acids feasible as natural markers for this crop-insect combination. Oleic acid in wild S. fulvus populations in North Dakota suggests at least 84 and 90% of adults originated from mid-oleic or high oleic sunflower hybrids in 2017 and 2018, respectively. Surveys in 2017 (n = 156 fields) and 2019 (n = 120 fields) extended information provided by S. fulvus fatty acid data; no significant spatial patterns of S. fulvus damage were detected in samples, damage to oilseed sunflowers was greater than confection (non-oil) types, and the majority of damage occurred in ≈10% of surveyed fields. Combined, data suggest a few unmanaged or mismanaged oilseed sunflower fields are responsible for producing most S. fulvus in an area. Improved management seems possible with a combination of grower education and expanded use of non-insecticidal tactics, including cultural practices and S. fulvus-resistant hybrids.

Sign in / Sign up

Export Citation Format

Share Document