THE HEARTWOOD EXTRACTIVES OF PINUS BANKSIANA LAMB

1963 ◽  
Vol 41 (9) ◽  
pp. 2165-2174 ◽  
Author(s):  
E. von Rudloff ◽  
A. Sato
Keyword(s):  
Pinus Banksiana ◽  
Methanol Extract ◽  
Monomethyl Ether ◽  
Acetone Extract ◽  
Fatty Acid Esters ◽  
Volatile Material ◽  
Chromatographic Techniques ◽  
Trace Components ◽  
Acid Esters ◽  
Heartwood Extractives

The heartwood of jack pine was analyzed by various chromatographic techniques and countercurrent distribution. The major components were found to be isopimaric, abietic, dehydroabietic, and neoabietic acids, as well as glycerides of oleic, linoleic, and linolenic acids. Smaller amounts of pimaric, sandaracopimaric, myristic, palmitic, stearic, palmitoleic, and four unidentified acids were recorded, as well as fatty acid esters of β-sitosterol, α-terpineol, and four unidentified volatile alcohols. Of the phenols, pinocembrin, pinobanksin, and pinosylvin monomethyl ether predominated. Pinosylvin was isolated and several minor constituents including lignan-like compounds were detected in the acetone extract. The methanol extract was composed mainly of polymeric lignan-like fractions. From one of these a trimer, C60H66O24, m.p. 186–188 °C, αd + 3.2°, was isolated. The small amount of steam-volatile material consisted mainly of α- and β-pinene, benzoic acid, and α-terpineol. Traces of methyl benzoate, camphene, limonene, β-phellandrene, cis-p-menthan-8-ol, and nine unidentified trace components were recorded.

THE HEARTWOOD EXTRACTIVES OF PINUS RESINOSA AIT•

1964 ◽  
Vol 42 (3) ◽  
pp. 635-640 ◽  
Author(s):  
A. Sato ◽  
E. Von Rudloff
Keyword(s):  
Unsaturated Fatty Acids ◽  
Methanol Extract ◽  
Pinus Resinosa ◽  
Volatile Oil ◽  
Monomethyl Ether ◽  
Acetone Extract ◽  
Gas Liquid Chromatography ◽  
Taxonomic Significance ◽  
Trace Components ◽  
Heartwood Extractives

The acetone extract of red pine heartwood was found to contain mainly pinosylvin monomethyl ether, oleic, linoleic, dehydroabietic, and isopimaric acids, and triglycerides of unsaturated fatty acids. Smaller amounts of pinosylvin, β-sitosteryl esters, and benzoic acid were isolated. Palmitic, palmitoleic, stearic, linoleic, pimaric, sandaracopimaric, abietic, neoabietic, vanillic, and three unidentified acids, as well as pinocembrin, vanillin, and eleven trace components were recorded by gas–liquid chromatography. A small amount of steam volatile oil, which may have taxonomic significance, was isolated. α-Pinene, β-pinene, myrcene, limonene, γ-terpinene, terpinolene, camphor, cis-p-menthan-8-ol, terpinen-4-ol, and α-terpineol were tentatively identified.Besides glucose and xylose, the methanol extract contained polylignan fractions similar to those which had been isolated previously from jack pine.

Development of the determination methods of fatty acid esters of chloropropanediols in fat-rich foods

2014 ◽  
Vol 31 (2) ◽  
pp. 95-101
Author(s):  
Xiaobo YAN ◽  
Shaoming WU ◽  
Nan LI ◽  
Huadong LV ◽  
Wusheng FU
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Determination Methods ◽  
Acid Esters

Bionanomaterials: Thermal Stability of the Oleic Acid / alpha- and beta-cyclodextrin Complexes

2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Daniel I. Hadaruga ◽  
Nicoleta G. Hadaruga ◽  
Anca Hermenean ◽  
Adrian Rivis ◽  
Vasile Paslaru ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Oleic Acid ◽  
Solution Method ◽  
Degradation Products ◽  
Water Solution ◽  
Fatty Acid Esters ◽  
Cyclodextrin Complexes ◽  
Free Oleic Acid ◽  
Thermal Stability Of ◽  
Acid Esters

This paper presents the thermal stability of the oleic acid encapsulated in a- and b - cyclodextrin. The complexation of the oleic acid was achieved by the ethanol-water solution method and the nanoparticles were analyzed by DSC. The free oleic acid and the encapsulated one were subjected to the thermal degradation in the range of 50-150�C and the degradation products were identified and quantified by GC-MS analysis of the fatty acid esters obtained by deriving with methanol/boron trifluoride, both for free compounds and for the encapsulated ones. The oleic acid complexes were very stable in this range of temperature.

Mesomorphic Behaviour of Saturated and Monounsaturated C18 and C22 Fatty Acid Esters of Cholesterol

1994 ◽  
Vol 59 (4) ◽  
pp. 833-840
Author(s):  
Slavomír Pirkl
Keyword(s):  
Phase Transitions ◽  
Fatty Acid ◽  
Fatty Acid Esters ◽  
Aliphatic Esters ◽  
Acid Esters

The phase transitions and effective optical rotary power of saturated and monounsaturated aliphatic esters of cholesterol with 18 and 22 carbon atoms in the chain have been described. The effect of cis/trans isomerism on these properties is discussed.

The occurrence of long chain polyprenols in leaves of plants of Rosaceae family and their isolation by time-extended liquid chromatography

1992 ◽  
Vol 70 (6) ◽  
pp. 448-454 ◽  
Author(s):  
Ewa Świeżewska ◽  
T. Chojnacki ◽  
W. J. Jankowski ◽  
K. Singh ◽  
J. Olsson
Keyword(s):  
Liquid Chromatography ◽  
Fatty Acid ◽  
Large Scale ◽  
Fatty Acid Esters ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Wet Weight ◽  
Rosaceae Family ◽  
Acid Esters ◽  
Long Chain

The long chain polyprenols composed of 30 and more isoprene units from leaves of plants belonging to the genera Potentilla and Rosa have been described. They occur in the form of fatty acid esters. The composition of polyprenol mixture was species dependent and its content reached ca. 0.5% wet weight. Large scale preparation of individual polyprenols from a natural polyprenol mixture was performed using time-extended liquid chromatography on the hydrophobic gel Lipidex-5000.Key words: long chain polyprenols, Rosaceae.

scholarly journals In Search of Effective Anticancer Agents—Novel Sugar Esters Based on Polyhydroxyalkanoate Monomers

2021 ◽  
Vol 22 (13) ◽  
pp. 7238
Author(s):  
Wojciech Snoch ◽  
Dawid Wnuk ◽  
Tomasz Witko ◽  
Jakub Staroń ◽  
Andrzej J. Bojarski ◽  
...  
Keyword(s):  
Anticancer Agents ◽  
Prostate Cancer Cell ◽  
Fatty Acid Esters ◽  
Skin Melanoma ◽  
Cancer Treatments ◽  
Sugar Esters ◽  
Hydroxylated Fatty Acids ◽  
Ic50 Values ◽  
Metastatic Process ◽  
Acid Esters

Cancer is one of the deadliest illness globally. Searching for new solutions in cancer treatments is essential because commonly used mixed, targeted and personalized therapies are sometimes not sufficient or are too expensive for common patients. Sugar fatty acid esters (SFAEs) are already well-known as promising candidates for an alternative medical tool. The manuscript brings the reader closer to methods of obtaining various SFAEs using combined biological, chemical and enzymatic methods. It presents how modification of SFAE’s hydrophobic chains can influence their cytotoxicity against human skin melanoma and prostate cancer cell lines. The compound’s cytotoxicity was determined by an MTT assay, which followed an assessment of SFAEs’ potential metastatic properties in concentrations below IC50 values. Despite relatively high IC50 values (63.3–1737.6 μM) of the newly synthesized SFAE, they can compete with other sugar esters already described in the literature. The chosen bioactives caused low polymerization of microtubules and the depolymerization of actin filaments in nontoxic levels, which suggest an apoptotic rather than metastatic process. Altogether, cancer cells showed no propensity for metastasis after treating them with SFAE. They confirmed that lactose-based compounds seem the most promising surfactants among tested sugar esters. This manuscript creates a benchmark for creation of novel anticancer agents based on 3-hydroxylated fatty acids of bacterial origin.

Separation of Fatty Acid Dimethyl Esters on an Ionic Liquid Gas Chromatographic Column

2020 ◽  
Author(s):  
R E Pauls ◽  
B Pease
Keyword(s):  
Ionic Liquid ◽  
Fatty Acid ◽  
Stationary Phases ◽  
Carbon Number ◽  
Fatty Acid Esters ◽  
Reaction Products ◽  
Isomer Separation ◽  
Metathesis Reaction ◽  
Polydimethyl Siloxane ◽  
Acid Esters

Abstract An ionic liquid (IL) 111 column was compared with other commonly employed stationary phases including polydimethyl siloxane and polyethylene glycol for the separation of fatty acid monomethyl and dimethyl esters. The fatty acid esters employed in this study were derived from metathesis reactions of vegetable oils both with and without olefins. The IL 111 column demonstrated enhanced performance compared with conventional columns for the separation of these esters. These advantages included significantly enhanced retention of dimethyl esters relative to monomethyl esters, excellent cis/trans isomer separation and the ability to analyze higher carbon number dimethyl esters. As a result, these columns are highly suited for the analysis of mixtures of mono- and dimethyl fatty acid esters found in lipid metathesis reaction products or to determine monofunctional impurities in samples of commercial dimethyl esters.

scholarly journals Terminal Trialkylsilyl Substituent Effect of Janus-type Molecular Tubes on the Inclusion of Unsaturated Fatty Acid Esters

ACS Omega ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 3227-3231
Author(s):  
Chizuru Kogame-Asahara ◽  
Hitomi Iguchi ◽  
Kenichiro Honda ◽  
Hajime Shigemitsu ◽  
Toshiyuki Kida
Keyword(s):  
Fatty Acid ◽  
Unsaturated Fatty Acid ◽  
Substituent Effect ◽  
Fatty Acid Esters ◽  
Molecular Tubes ◽  
Acid Esters

Effect of composition of sucrose fatty acid esters on formation of palladium nanoparticles in reverse micelles

2009 ◽  
Vol 287 (7) ◽  
pp. 795-799 ◽  
Author(s):  
Hidetaka Noritomi ◽  
Kenji Kagitani ◽  
Yasutaka Muratsubaki ◽  
Satoru Kato
Keyword(s):  
Fatty Acid ◽  
Palladium Nanoparticles ◽  
Reverse Micelles ◽  
Fatty Acid Esters ◽  
Sucrose Fatty Acid Esters ◽  
Acid Esters
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