scholarly journals Composition of Oil from the Seeds of Cassia Sophera Linn.

1970 ◽  
Vol 42 (1) ◽  
pp. 75-78 ◽  
Author(s):  
M Mostafa ◽  
Momtaz Ahmed ◽  
Ismet Ara Jahan ◽  
Jasim Uddin Choudhury
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Elaidic Acid ◽  
Lauric Acid ◽  
Arachidic Acid

The oil obtained from the seeds of Cassia sophera Linn was analyzed by GC-MS and a total of 42 compounds have been identified. The major constituents are palmitic acid (22.82 %), linoleic acid (8.32 %), elaidic acid (19.16 %), stearic acid (9.86 %), 5-isopropyl -6-methyl-3-heptyne-2,5-diol (6.44 %), undecyl lauric acid (6.61 %), oleic acid (2.1 %), arachidic acid (3.57 %) and 3α, 7β-dihyodxy -5β, 6β-epoxycholestane (5.9 %). Bangladesh J. Sci. Ind. Res. 42(1), 75-78, 2007

scholarly journals GC-MS and Antioxidant Capacity Analysis in Propanol Extract of Carthamus tinctorious L

2021 ◽  
Vol 8 (1) ◽  
pp. 67
Author(s):  
Sri Indriati ◽  
Muhammad Yusuf ◽  
Riskayanti Riskayanti ◽  
Nur Amaliah ◽  
Mahyati Latief ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Lauric Acid ◽  
Myristic Acid ◽  
Capacity Analysis ◽  
Time Intervals ◽  
Maximum Extraction ◽  
Maximum Content

Safflower, were extracted using propanol solvent at different time intervals: 10, 20, and 30 min at a constant temperature of 40°C. The extracts were analyzed by GC/MS technique. The major compounds identified were tetrapentacontane, tetracontane, triacontanol, gamma sitosterol, myristic acid, linoleic acid, stearic acid, palmitic acid, oleic acid, and lauric acid. However, some levels of palmidrol, beta-amyrin, cubenol, and tocopherol were also found in safflower extracts. Most of the volatile compounds were detected between 10–30 min time of extraction. The 30 min time of extraction also showed the maximum content of polyphenols and antioxidants in safflower extracts. Thus, 30 min was suggested as the most suitable time for maximum extraction of bioactive volatiles, antioxidants, and polyphenols from Safflower using propanol solvent.

Lipid utilization of two flower spiroplasmas and honeybee spiroplasma

1985 ◽  
Vol 31 (2) ◽  
pp. 173-176 ◽  
Author(s):  
C. J. Chang
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Lauric Acid ◽  
Myristic Acid ◽  
Palmitoleic Acid ◽  
Defined Medium ◽  
Chemically Defined Medium ◽  
Lipid Utilization

A chemically defined medium (CC-494) was used to study the lipid utilization of two flower spiroplasmas (Spiroplasma florkola and SR-3) and honeybee spiroplasma (AS-576). All three spiroplasmas reached comparable growth yields when lauric acid, myristic acid, or stearic acid replaced palmitic acid; palmitoleic acid, linoleic acid, or linolenic acid replaced oleic acid; and campesterol, ergosterol, β-sitosterol, or stigmasterol replaced cholesterol. None of the spiroplasmas grew when 5A-cholestane replaced cholesterol.

Separation and Identification of Lecithins from Hevea Latex

1940 ◽  
Vol 13 (4) ◽  
pp. 750-760 ◽  
Author(s):  
R. F. A. Altman ◽  
G. M. Kraay
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Arachidic Acid ◽  
Raw Material ◽  
Fractional Precipitation ◽  
Ether Solution ◽  
Crude Material ◽  
Considerable Loss

Abstract To identify completely the phospholipids, which according to several authors may occur in Hevea latex, we separated in a very simple way a butter-like substance, which really contains phospholipids. The results of qualitative analysis justify the positive conclusion that this substance contains lecithins composed of glycerophosphoric acid, choline and the fat acids: palmitic acid, stearic acid, arachidic acid, oleic acid and linoleic acid. A glycoside also was shown to be present in the raw material. We found the content of phosphorus, nitrogen and fat acids to be 1.58, 0.54 and 84.1 per cent, respectively. In purifying the crude material by means of fractional precipitation with acetone from the ether solution, we obtained a nearly colorless gum which contained 2.35 per cent phosphorus, 1.05 per cent nitrogen and 61.3 per cent fat acids. It is stated that the purification is accompanied by a considerable loss of fat acids, the latter remaining in the acetone-ether solution.

Chemical Composition of the Fatty Oils of the Seeds of Cleome Viscosa Accessions

2012 ◽  
Vol 7 (10) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Rashmi Kumari ◽  
Gopal Rao Mallavarapu ◽  
Vinod Kumar Jain ◽  
Sushil Kumar
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitoleic Acid ◽  
Methyl Esters ◽  
Arachidic Acid ◽  
Behenic Acid ◽  
Trace Constituents ◽  
Cleome Viscosa

Fatty oils of the seeds of Cleome viscosa accessions from Delhi, Jaipur, Faridabad, Surajkund and Hyderabad were methylated and analyzed by GC and GC-MS. The major fatty acids, identified as their methyl esters, of the oils from these five locations were palmitic acid (10.2-13.4%), stearic acid (7.2-10.2%), oleic acid (16.9-27.1%) and linoleic acid (47.0-61.1%). In addition, palmitoleic acid, octadec-(11 E)-enoicacid, arachidic acid, eicosa-(11 Z)-enoic acid, linolenic acid, heneicosanoic acid, behenic acid, lignoceric acid, pentacosanoic acid, hexacosanoic acid, 12-oxo-stearic acid, and the alkanes tetracosane, pentacosane, hexacosane, heptacosane, octacosane, nonacosane, triocontane, hentriacontane and dotriacontane, were also identified as minor and trace constituents in some of these oils.

scholarly journals FATTY ACIDS COMPOSITION OF TOCTE (JUGLANS NEOTROPICA DIELS) WALNUT FROM ECUADOR

2018 ◽  
Vol 11 (2) ◽  
pp. 395 ◽  
Author(s):  
Vilcacundo E ◽  
Alvarez M ◽  
Silva M ◽  
Carpio C ◽  
Morales D ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Linolenic Acid ◽  
Lipid Content ◽  
Methyl Esters ◽  
Total Lipid Content ◽  
Fatty Acids Composition

 Objective: The aim of this study was to determine the fatty acids composition in a tocte seeds oil (Juglans neotropica Diels) sample cultivated in Ecuador.Methods: Tocte oil was obtained from tocte seeds using the cold pressing method. Fatty acids analysis was carried out using the gas chromatography method with a mass selective detector (GC/MSD) and using the database Library NIST14.L to identify the compounds.Results: Methyl esters fatty acids were identified from tocte (J. neotropica Diels) walnut using the GC–MS analytical method. The total lipid content of tocte walnuts seeds of plants cultivated in Ecuador was of 49.01% of the total lipid content on fresh weight. Fatty acids were analyzed as methyl esters on a capillary column DB-WAX 122-7062 with a good separation of palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid. The structure of methyl esters fatty acids was determined using the GC–MS. Tocte walnut presents 5.05% of palmitic acid, 2.26% of stearic acid, 19.50% of oleic acid, 65.81% of linoleic acid, and 2.79% linolenic acid of the total content of fatty acids in tocte oil. Fatty acids content reported in this study were similar to the data reported for other walnuts seeds.Conclusions: Tocte seeds are a good source of monounsaturated and polyunsaturated fatty acids. Tocte oil content oleic acid and with a good content of ɷ6 α-linoleic and ɷ3 α-linolenic. Tocte walnut can help reduce risk cardiovascular diseases in Ecuador for their good composition of fatty acids.

scholarly journals JENIS ASAM LEMAK MINYAK TEMPE BUSUK

Jurnal Kimia ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 82
Author(s):  
M. H. Rachmawati ◽  
H. Soetjipto ◽  
A. Ign A. Ign. Kristijanto
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Food Product ◽  
Chemical Components ◽  
Purification Process ◽  
Before And After

Overripe tempe is a food product that used by peoples in Indonesia as a food seasoning. So far, overripe tempe received less attention than fresh tempe and research of overripe tempe is rarely done. The objective of the study is to identify the fatty acid compounds of the  fifth day fermentation overripe tempe oil before and after purification . The overripe tempe oil of fifth day fermentation was extracted with soxhletation method using n – hexane solvent, then it was purified. The various fatty acids  of overripe tempe oil were analyzed by GC – MS. The purification process was done by using H3PO4 0,2% and NaOH 0,1N. The result of the study showed that before purification the oil  was composed of eight compounds  are palmitic acid (13,33%),  linoleic acid (77,57%), stearic acid (6,15%), and the five chemical components, Dasycarpidan – 1 - methanol, acetate ,  oleic acid, 9 - Octadecenamide ,Cholestane - 3, 7, 12, 25 - tetrol, tetraacetate, (3?, 5?, 7?, 12?) and  6, 7 – Epoxypregn – 4 – ene -9, 11, 18- triol - 3, 20 - dione, 11, 18 – diacetate have percentage of areas less than 3%. After purification the oil  was composed of palmitic acid (12,38% ), linoleic acid (80,35 %), stearic acid (5,84%), and 17 – Octadecynoic acid (1,42 %) .

scholarly journals Lipids profile of bitter melon (Momordica charantia L .) fruit and ebony (Diospyros mespiliformis Hochst ex A. DC .) tree fruit pulp

2019 ◽  
Vol 54 (4) ◽  
pp. 367-374
Author(s):  
MO Aremu ◽  
AA Waziri ◽  
FJ Faleye ◽  
AM Magomya ◽  
UC Okpaegbe
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Momordica Charantia ◽  
Bitter Melon ◽  
Fruit Pulp ◽  
Two Samples

There are several underexploited plant seeds or fruits in Nigeria with little information about their chemical composition. To this end a comprehensive study on fatty acid, phospholipids and phytosterols composition of bitter melon (Momordica charaantia) fruit and ebony tree (Diospyros mespiliformis) fruit pulp were determined using standard analytical techniques. The most concentrated fatty acid (%) was linoleic acid in Momordica charantia fruit (45.47) and 44.82 in Diospyros mespiliformis fruit pulp. The increasing order of the concentrated fatty acids in Momordica charantia fruit were: linolenic acid (2.38) < stearic acid (7.52) < oleic acid (20.18) < palmitic acid (23.64) < linoleic acid (45.47) while that of Diospyros mespiliformis fruit pulp were: linolenic acid (5.73) < stearic acid (8.62) < oleic acid (18.95) < palmitic acid (20.88) < linoleic acid (44.82). Arachidonic, arachidic, palmitoleic, margaric, behenic, erucic, lignoceric, myristic, lauric, capric and caprylic acids were present in small quantities with none of them recording up to 1.0% in both of the two samples. The results also showed low concentration of monounsaturated fatty acids (MUFA) (20.41%) in Momordica charantia fruit and 19.13% in Diospyros mespiliformis fruit pulp, and values of polyunsaturated fatty acid (PUFA) were 2.44 and 5.78% for the two samples, respectively. The respective phospholipids composition showed a highest concentration of phosphatidylcholine in Momordica charantia and Diospyros mespiliformis (100.31and 88.12 mg/100 g) while lysophosphatidylcholine and phosphatidic acid were the least concentrate values of 12.62 and 14.52 mg/100 g in Momordicacharantia and Diospyros mespiliformis, respectively. The concentrations of phytosterols were of low values except in sitosterol with values of 153.28 and 119.46 mg/100 g in Momordica charantia and Diospyros mespiliformis, respectively. This study provides an informative lipid profile that will serve as a basis for further chemical investigations and nutritional evaluation of Momordica charantia fruit and Diospyros mespiliformis fruit pulp. Bangladesh J. Sci. Ind. Res.54(4), 367-374, 2019

scholarly journals Stereospecific distribution of plamitic acid in the triacylglycerols of rat adipocytes. Effects of varying the composition of the substrate fatty acid in vitro

1980 ◽  
Vol 191 (2) ◽  
pp. 637-643 ◽  
Author(s):  
William W. Christie ◽  
Margaret L. Hunter
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Myristic Acid ◽  
Relative Proportion ◽  
Rat Adipocytes

The effects of inclusion of different fatty acids in the medium on the rate of esterification of palmitic acid and its stereospecific distribution among the three positions of the triacyl-sn-glycerols by preparations of rat adipocytes in vitro have been determined. Myristic acid, stearic acid, oleic acid and linoleic acid were used as diluents and the concentration of the combined unesterified fatty acids in the medium was held constant; only the proportion of palmitic acid was varied. The amount of palmitic acid esterified was always linearly related to its relative concentration in the medium and was not significantly affected by the nature of the diluent fatty acid chosen. Constant relative proportions were recovered in triacylglycerols and in intermediates in each instance. The amount of palmitic acid esterified to each of the positions of the triacyl-sn-glycerols was linearly dependent on the relative proportion in the medium but the nature of the relationship was markedly influenced by which fatty acid was present. When stearic acid was present, simple relationships were found over the whole range tested. When either myristic acid, oleic acid or linoleic acid was present, abrupt changes in the manner of esterification of palmitic acid were observed in position sn-1 when the relative concentrations of palmitic acid and the diluent reached critical values, which differed with each fatty acid. In position sn-2 when oleic acid or linoleic acid was present, a similar change was observed, and in position sn-3 it was obtained with myristic acid as diluent. The results are discussed in terms of changes in the relative affinities of the acyltransferases for palmitic acid. Palmitic acid was esterified into various molecular species in proportions that indicated acylation with non-correlative specificity at higher relative concentrations but not at lower.

scholarly journals Phospholipid biosynthesis in the anaerobic protozoon Entodinium caudatum

1975 ◽  
Vol 146 (2) ◽  
pp. 317-328 ◽  
Author(s):  
T E Broad ◽  
R M Dawson
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Phosphatidyl Ethanolamine ◽  
Isotopic Ratio ◽  
Phospholipid Biosynthesis ◽  
Base Exchange ◽  
Rapid Turnover ◽  
Excellent Method

1. The anaerobic rumen protozoon Entodinium caudatum was incubated either intact or with various radioactive precursors of phospholipids after ultrasonication. 2. Pulse-chase experiments showed a rapid turnover of phosphatidylinositol and much slower turnovers of phosphatidylethanolamine and phosphatidylcholine. 3. E. caudatum imbibed choline very rapidly; this was immediately and exclusively converted into phosphatidylcholine which was shown by radioautography after 10 min to be distributed throughout the cell membranes. 4. Phosphatidylcholine was synthesized through a phosphorylcholine-CDP-choline pathway, the methylation or base-exchange pathways not being present. 5. Under suitable conditions [Me-14C]choline can be substantially (50-60%) converted into CDP-choline by sonicated E. caudatum and this provides an excellent method of preparing this biosynthetic intermediary. 6. [2-14C]Ethanolamine was taken up much less readily than choline. The former was incorporated into phosphatidylethanolamine by the CDP-ethanolamine pathway. 7. Doubly labelled [32P]phosphatidyl[2-3H]ethanolamine was converted into ceramide phosphorylethanolamine and N-(1-carboxyethyl)phosphatidyl-ethanolamine, without change in the isotopic ratio. Ceramide phosphoryl [2-14C]-ethanolamine was converted into phsophatidylethanolamine. 8. Palmitic acid, oleic acid and linoleic acid were taken by E. caudatum cells and incorporated into phospholipids. By contrast, although stearic acid was taken up it was hardly incorporated into phospholipids.

Excess molar enthalpies of binary mixtures containing esters of fatty acids

1988 ◽  
Vol 66 (5) ◽  
pp. 1283-1287 ◽  
Author(s):  
Santos Otin ◽  
Ignacio Senar ◽  
Ma José Soriano ◽  
Celso Gutierrez Losa
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Ethyl Ester ◽  
Binary Mixtures ◽  
Elaidic Acid ◽  
Acid Ethyl Ester ◽  
Excess Molar Enthalpies ◽  
Ester Molecule

Excess molar enthalpies [Formula: see text] at 310.15 K and 101.32 kPa, have been determined for the binary mixtures: lauric acid ethyl ester +, stearic acid ethyl ester +, oleic acid ethyl ester +, linoleic acid ethyl ester + n-hexadecane, + toluene, or + ethyl alcohol, and elaidic acid ethyl ester + n-hexadecane or + toluene.The results show that HE of ester + n-hexadecane mixtures increases with decreasing chain length and with increasing unsaturation of the ester molecule. Ester + toluene mixtures are slightly exothermic and ester + alcohol are strongly endothermic, with [Formula: see text] values ranging from 1535 to 1740 J mol−1 at the maximum.

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