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1.
A. Tomic S. Petrovic M. Pucarevic S. Sobajic M. Ristic M. Niketic 《Chemistry of Natural Compounds》2006,42(4):391-393
The fruit oils of Athamanta turbith ssp. hungarica and Athamanta turbith ssp. haynaldii were obtained by Soxhlet extraction using petroleum ether. The fatty acid composition of oils was determined by GC in the
methyl ester form. Considering the composition and content of fatty acids, the examined oils were very similar. Petroselinic
acid was the principal one (45.6 and 46.2%, respectively), followed by a significant amount of linoleic acid (26.9 and 29.1%,
respectively). In both oils, myristic, pentadecanoic, palmitic, palmitoleic, stearic, petroselinic, oleic, linoleic, α-linolenic,
arachidic, and behenic acid were identified. Lignoceric acid was detected only in A. turbith ssp. hungarica oil.
Published in Khimiya Prirodnykh Soedinenii, No. 4, pp. 319–320, July–August, 2006. 相似文献
2.
Eyup Bagci 《Chemistry of Natural Compounds》2006,42(6):645-648
In this study, the fatty acid contents of some Astragalus L. (Fabaceae) species from Turkey were determined by GC and GC-MS techniques. The seed oils of Astragalus sp. (A. echinops Aucher ex. Boiss., A. subrobustos Boriss., A. jodostachys, Boiss. & Buhse., A. falcatus Lam., A. fraxinifolius DC.) contained linolenic (between 23–41.%), linoleic (23–37%), and oleic acids (8–19%) as the major components. Fatty acid
composition of the studied Astragalus taxa showed uniform fatty acid patterns. Palmitic and stearic acids were the major saturated fatty acids in the seed oils.
The amounts of unsaturated fatty acids were higher than saturated fatty acids.
Published in Khimiya Prirodnykh Soedinenii, No. 6, pp. 526–528, November–December, 2006. 相似文献
3.
G. Stojanovic A. P. Ligon A. Smelcerovic J. Lazarevic M. Spiteller R. Palic 《Chemistry of Natural Compounds》2007,43(4):380-383
For the first time the total acid composition of the seeds of Stachys milanii Petrovic, a species endemic to the central and eastern Balkan Peninsula and growing spontaneously at two localities, was
examined by GC and GC/MS. The major fatty acid was linoleic or oleic acid. Besides fatty acids that represent the usual seed
oil constituents, 6-octadecynoic and 9-oxononanoic acid were identified in considerable amounts. The high content of 6-octadecynoic
acid makes S. milanii seed oil a good potential source for the active substance in antifungal preparations. From the chemotaxonomical point of
view, small amounts of octadecatrienoic acid detected in the seeds suggested classification of S. milanii as an archaic taxon.
Published in Khimiya Prirodnykh Soedinenii, No. 4, pp. 315–317, July–August, 2007. 相似文献
4.
A. R. Jassbi M. Mehrdad M. Soleimani M. Mirzaeian A. Sonboli 《Chemistry of Natural Compounds》2005,41(4):415-417
Analyses of the essential oils of Bunium elegans (Fenzl) Freyn and B. caroides (Boiss.) Hausskn. ex Bornm., using GC, GC/MS, and13 C-NMR spectroscopy resulted in identification of their chemical constituents. The oils of both species contain mainly the
sesquiterpene hydrocarbons germacrene-D and E-caryophyllene, which amounted to 24.1% and 38% for B. elegans and 22.1% and 26.6% for B. caroides respectively. The oil of B. caroides contained the monoterpenes α-pinene and Z-β-ocimene in 4.1 and 5.9% respectively, while traces of monoterpenes were detected
for B. elegans. On the other hand, in B. caroides the phenylpropanoid derivatives asaricin (7.5%) and dillapiole (10.2%) were among the major constituents.
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Published in Khimiya Prirodnykh Soedinenii, No. 4, pp. 335–336, July–August, 2005. 相似文献
5.
S. Petrovic S. Sobajic S. Rakic A. Tomic J. Kukic 《Chemistry of Natural Compounds》2004,40(5):420-422
The kernel oils of Quercus robur and Quercus cerris were obtained by Soxhlet extraction using petroleum ether. Oil yields were found to be 5.2–5.6% and 4.3–4.8% for Q. robur and Q. cerris kernel, respectively (expressed in g per 100 g of dried plant material). The physical and chemical constants, unsaponifiable matter and total fatty acids were determined. The total fatty acid composition of oils was determined by GC in the methyl ester form. Considering the composition and content of fatty acids, the examined kernel oils were very similar. Seven fatty acid components were identified in both oils: palmitic, stearic, arachidic, palmitoleic, oleic, linoleic, and -linolenic. In Q. robur and Q. cerris kernel oils the principal acids were oleic (44.3% and 43.0%, respectively) and linoleic (37.2% and 32.6%, respectively), followed by a significant amount of palmitic acid.Published in Khimiya Prirodnykh Soedinenii, No. 5, pp. 347–348, September–October, 2004. 相似文献
6.
Terpene esters of fatty acids have potential applications in food, cosmetic, and pharmaceutical industries. The present study
focuses on the synthesis of terpene esters of long chain fatty acids catalyzed by Candida antarctica lipase B. Different parameters like temperature, solvent, and enzyme concentration for the esterification of terpene alcohols
(geraniol and citronellol) with oleic acid were studied. Maximum conversion (98 %) was found for both terpene esters at 60°C
in 2,2,4-trimethylpentane as well as in dry hexane and around 95–97 % in other tested solvents. The reaction was also carried
out using stearic and linoleic acid in hexane to study the effects of unsaturation in the substrate in which stearic acid
showed the maximum conversion. The reaction was monitored by 1H nuclear magnetic resonance spectroscopy. Using the peak integration values of methylene protons of terpene and terpene ester
of δ = 3.6 and 4.0 for citronellol and δ = 4.2 and 4.6 for geraniol, respectively, percentage conversions of each of the esters
were calculated. 相似文献
7.
Li Wang Shuguang Jian Peng Nan Jimei Liu Yang Zhong 《Chemistry of Natural Compounds》2005,41(5):491-493
The chemical constituents of leaf oils of Elephantopus scaber L. from 12 locations in Southern China, including three provinces and Hong Kong, were investigated using GC/MS. A total of
24 compounds were detected, of which 20 were identified by their mass spectra fragmentation patterns. The major compounds
include hexadecanoic acid (8.19–39.22%), octadecadienoic acid (trace - 29.22%), five alkane homologues, i.e., n-tetradecane
(1.19–5.26%), n-pentadecane (3.22–12.05%), n-hexadecane (2.38–16.26%), n-heptadecane (2.48–15.32%), and n-octadecane (1.39–9.59%),
as well as tetramethylhexadecenol (2.06–4.31%). Hierarchical cluster analysis classified the leaf oils into two groups. Two
main chemotypes of leaf oils in E. scaber were thus identified, one rich in hexadecanoic acid and octadecadienoic acid, and the other rich in the five alkane homologues.
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Published in Kimiya Prirodnikh Soedinenii No. 5, pp. 403–404, September–October, 2005. 相似文献
8.
Aerial parts of Sideritis cilicica Boiss. & Bal. and Sideritis bilgerana P.H. Davis (Lamiaceae) were hydrodistilled to obtain essential oils that were then analyzed by GC and GC/MS. β-Pinene (39%),
α-pinene (28%), and β-phellandrene (20%) were the main components in the oil of S. cilicica, while β-pinene (48%), and α-pinene (32%) were the major constituents in the oil of S. bilgerana. The antimicrobial activities of the oils were evaluated by using the microdilution broth method. Both of the oils showed
good inhibitory effects on C. albicans.
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Published in Khimiya Prirodnykh Soedinenii, No. 6, pp. 559–561, November–December, 2005. 相似文献
9.
Lipids from seeds of three plants of the Asteraceae family, Cousinia franchetii, Arctium leiospermum, and Rhaponticum integrifolium, were studied. The principal constituents of lipids from the three plants were shown to be acylglycerides of ordinary fatty
acids and oxygenated fatty acids using chemical and chromatographic analyses. The composition of the ordinary unoxidized and
epoxy acids was determined by GC.
Presented at the 7th International Symposium on the Chemistry of Natural Compounds, October 16–18, 2007, Tashkent, Uzbekistan
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Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 115–117, March–April, 2008. 相似文献
10.
The composition of the hydrodistilled essential oils obtained from dried leaves and fruits of Grammosciadium platycarpum Boiss. & Hausskn. were determined by GC and GC/MS. Twenty-five compounds (87.0%) and sixteen constituents (96.2%) were identified
in the leaf and fruit oils, respectively. Linalool (26.1 and 53.9%), (E,E)-α-farnesene (24.1 and 20.4% ) and (Z)-β-santalol (10.6 and 10.9%) were the major components in the leaf and fruit oils.
Published in Khimiya Prirodnykh Soedinenii, No. 6, pp. 559–560, November–December, 2006. 相似文献
11.
The chemical composition of the fruits of the north algerian ecotype Pistacia atlantica subsp. atlantica was determined and compared to other fruits of different species in the genus growing in south Algeria and other Mediterranean
regions. These fruits were analyzed for their dry matter, protein, crude oil, ash, fatty acids, and phytosterol content. The
main fatty acids identified by gas chromatography were oleic (54.15%), linoleic (28.84%), and palmitic (12.21%) acids. The
fruits of the north ecotype were found to be rich in protein, oil, fiber, and unsaturated fatty acids, suggesting that they
may be valuable for food uses. The sterols isolated were campesterol, stigmasterol, β-sitosterol, and Δ5-avenasterol with β-sitosterol as the major constituent (85%±0.85). The biochemical data indicated an elevated MUFA rate (∼56%)
in pistacia oil which may be important against certain pathologies for its nutritional and preventive virtues.
Published in Khimiya Prirodnykh Soedinenii, No. 2, pp. 103–105, March–April, 2007. 相似文献
12.
D. T. Asilbekova Kh. R. Nuriddinov N. D. Abdullaev A. M. Nigmatullaev A. I. Glushenkova 《Chemistry of Natural Compounds》2010,46(2):176-179
The composition of free and bound lipids from seeds of Cortusa turkestanica A. Lozinsk (Primulaceae) was studied. The fatty acid composition of principal acyl-containing classes was established using
GC/MS. It was found that triacylglycerines isolated from free and bound lipids contained the usual acids and rarely encountered
polyunsaturated 18:3 ω-6 (γ-linolenic, 8.8 and 3.2%) and 18:4 ω-3 (stearidonic, 0.7 and 0.4%) acids and were enriched in linoleic
acid (18:2, ω-6, 58.2 and 60.8%, respectively). It was found that polyunsaturated 18:3 ω-6 and 18:4 ω-3 acids were missing
in the free form and were found among polar substances of bound lipids. 相似文献
13.
Julien Paolini El Mokhtar El Ouariachi Abdelhamid Bouyanzer Belkheir Hammouti Jean-Marie Desjobert Jean Costa Alain Muselli 《Chemical Papers》2010,64(5):550-556
Chemical compositions of 16 Artemisia herba-alba oil samples harvested in eight East Moroccan locations were investigated by GC and GC/MS. Chemical variability of the A. herba-alba oils is also discussed using statistical analysis. Detailed analysis of the essential oils led to the identification of 52
components amounting to 80.5–98.6 % of the total oil. The investigated chemical compositions showed significant qualitative
and quantitative differences. According to their major components (camphor, chrysanthenone, and α- and β-thujone), three main groups of essential oils were found. This study also found regional specificity of the major components. 相似文献
14.
Galactomannans with galactose:mannose ratios 1:1.48 and 1:1.33, [α]D +67.9 and +76.4°, [η] 870.3 and 1337.1 mL/g, and molecular weights 999 and 1549 kDa, respectively, were isolated in 0.59
and 4.65% yields (of seed mass) from seeds of Astragalus alpinus and A. tibetanus (Fabaceae). Physicochemical methods (CrO3 oxidation; methylation–GC/MS; IR, NMR, and 13C spectroscopy) found that the main polysaccharide chain consisted of 1,4-β-D-mannopyranose units substituted 67.5% (A. alpinus) and 75.2% (A. tibetanus) at the C-6 position by single α -D-galactopyranose units. The contents of mannobiose blocks Man–Man, (Gal)Man–Man/Man–Man(Gal), and (Gal)Man–Man(Gal) variously
substituted with galactose were according to 13C NMR spectroscopy 15.9, 55.5, and 28.6% in A. alpinus galactomannan and 9.9, 42.3, and 47.8% in A. tibetanus galactomannan. 相似文献
15.
Zorica Stojanovi?-Radi? Ljiljana ?omi? Niko Radulovi? Milan Deki? Vladimir Ran?elovi? Olgica Stefanovi? 《Chemical Papers》2010,64(3):368-377
The present study gives results of chemical composition analyses and antimicrobial activity testing of three Erodium species: E. ciconium L., E. cicutarium L., and E. absinthoides Willd. Essential oils were obtained by hydro-distillation from air-dried entire plants and analyzed by GC and GC-MS. A total
of 209 different compounds were identified: 162 for E. cicutarium, 107 for E. ciconium, and 79 for E. absinthoides. Antimicrobial activity (broth microdilution method) of the oils was screened against a panel of Gram positive and Gram negative
bacteria and a number of fungi. Moderate susceptibility of all tested strains was observed. Determined MIC values were 0.156–5
mg mL−1 (bacterial strains) and 0.039–0.325 mg mL−1 (fungal strains). Major component of the most active oil, palmitic acid, was also tested for activity together with stearic
and myristic acids. 相似文献
16.
Hydrodistilled volatile oils from crushed dry stems, leaves, and roots of Prangos latiloba Korov. (Umbelliferae) growing wild in Sabzevar (Iran) were analyzed by GC and GC/MS. Eight compounds constituting 84.72% of stem oil, twelve compounds
constituting 95.39% of leaf oil, and nine compounds constituting 88.73% of root oil have been identified. The main components
of stem oil were γ-cadinene (30.39%), α-pinene (25.47%), and sabinene (12.55%). The main components of leaf oil were germacrene
D (27.79%), α-pinene (17.81%), β-caryophyllene (12.75%), and β-pinene (11.23%). The main components of root oil were spathulenol
(29.5%), 1,8-cineol (19.42%), p-cymene (17.03%), and α-bisabolol (15.33%).
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Published in Kimiya Prirodnikh Soedinenii, No. 5, pp. 443–444, September–October, 2005. 相似文献
17.
G. Ozek T. Ozek K. H. C. Baser E. Hamzaoglu A. Duran 《Chemistry of Natural Compounds》2007,43(6):667-671
The component composition of essential oils produced by steam distillation from flower heads, leaves, and stems of Salvia anatolica (Lamiaceae), a recently described new species endemic from Turkey, was studied by GC/FID and GC/MS. A total of 127 volatile
components representing 96% of the oil was identified in essential oil from flower heads and leaves. It was found that the
principal oil components of flower heads and leaves were α-pinene (10.9%), β-pinene (6.7%), α-copaene (6.3%), heptacosane (6.2%), and hexadecanoic acid (5.0%). A total of 109 volatile compounds representing 87.9% of
the oil was characterized in essential oil isolated from stems. The principal oil components of stems were identified as hexadecanoic
acid (27.2%), tetradecanoic acid (15.2%), dodecanoic acid (5.5%), and α-copaene (5.0%).
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Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 552–555, November–December, 2007. 相似文献
18.
Physicochemical properties and fatty acid composition of Juglans regia cultivars grown in Serbia 总被引:1,自引:0,他引:1
Tree cultivars (Jupiter, Sejnov, and Elit) of walnut (Juglans regia L.) were collected during the 2004 harvest from Cacak, Central Serbia. The chemical composition, including moisture, total
oil content, crude protein, ash, and carbohydrates, was determined. Afterwards, two techniques of oil extraction were implemented:
cold pressing extraction and organic solvent extraction. Iodine value, saponification value, acid value, and peroxide value
of obtained walnut oils were analyzed. The fatty acid composition of the walnut oils was determined using gas chromatography
with flame ionization detector. The oleic acid content of the oils ranged from 15.9–23.7% of the total acids, while linoleic
acid content ranged from 57.2–65.1% and the linolenic acid from 9.1–13.6%. The process of oil extraction had no significant
effect on content and composition of fatty acids.
Published in Khimiya Prirodnykh Soedinenii, No. 2, pp. 118–120, March–April, 2008. 相似文献
19.
S. G. Yunusova M. S. Yunusov A. R. Karimova V. F. Mironov S. G. Minzanova A. I. Konovalov Yu. Ya. Efremov O. N. Denisenko E. V. Chernova 《Chemistry of Natural Compounds》2007,43(5):525-528
The composition of lipids and fatty acids from seeds of Oenothera biennis growing in the RF near Kazan’ was determined. The content of γ-linolenic acid in all groups of acyl-containing lipids in
the oil to be 4.4%.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 430–433, September–October, 2007. 相似文献
20.
The sterol composition of macromycete fungus Laetiporus sulphureus was analyzed by GC-MS. The fungus contained mainly C16 to C20 fatty acids, C16 to C24 fatty acid ethyl esters, and C28, C29,
and C30, Δ5, Δ7, and Δ5,7 conventional sterols, and in minor amounts Δ0 analogues with saturated and unsaturated side chains. Moreover, ergosterol peroxide and cerevisterol were identified. This
sterol pattern was compared with those of other members of the family Polyporaceae reported in the literature.
Published in Khimiya Prirodnykh Soedinenii, No. 2, pp. 170–172, March–April, 2009. 相似文献