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.

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 CHEMICAL COMPOSITION OF THE HEARTWOOD EXTRACTIVES OF TAMARACK (LARIX LARICINA (DU ROI) K. KOCH)

1959 ◽  
Vol 37 (9) ◽  
pp. 1608-1613 ◽  
Author(s):  
G. V. Nair ◽  
E. Von Rudloff
Keyword(s):  
Fatty Acid Mixture ◽  
Acetone Extract ◽  
Resin Acids ◽  
The Other ◽  
Acid Mixture ◽  
Gas Liquid Chromatography ◽  
Larix Laricina ◽  
Long Chain Fatty Acids ◽  
Heartwood Extractives ◽  
Long Chain

The acetone-soluble constituents of the heartwood of tamarack have been investigated. The flavanonols taxifolin and aromadendrin were isolated in 0.30 and 0.05% yield and a trace amount of quercetin was obtained. Tropolones could not be detected, nor was there any evidence for resin acids. The major portion of the extract consisted of esters of ferulic, phthalic, and long-chain fatty acids. Eicosanyl ferulate was isolated as such, whereas the other constituents were identified after saponification. Gas liquid chromatography of the fatty acid mixture indicated the presence of palmitic, palmitoleic, oleic, linoleic, and linolenic acids as well as small amounts of C14, stearic, and C20 acids. From the non-saponifiable portion β-sitosterol, eicosanol, and nonan-2-ol were isolated. The acetone extract also contained free D-galactose and L-arabinose.

scholarly journals Synergistic Interaction of Methanol Extract fromCanarium odontophyllumMiq. Leaf in Combination with Oxacillin against Methicillin-ResistantStaphylococcus aureus(MRSA) ATCC 33591

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Dayang Fredalina Basri ◽  
Vimashiinee Sandra
Keyword(s):  
Inhibitory Concentration ◽  
Methanol Extract ◽  
Bactericidal Effect ◽  
Acetone Extract ◽  
Pharmacodynamic Interaction ◽  
Antistaphylococcal Activity ◽  
Preliminary Study ◽  
Canarium Odontophyllum ◽  
Time Kill ◽  
Acetone Extracts

Canarium odontophyllum(CO) Miq. has been considered as one of the most sought-after plant species in Sarawak, Malaysia, due to its nutritional and pharmacological benefits. This study aimed to evaluate the pharmacodynamic interaction of crude methanol and acetone extracts from CO leaves in combination with oxacillin, vancomycin, and linezolid, respectively, against MRSA ATCC 33591 as preliminary study has reported its potential antistaphylococcal activity. The broth microdilution assay revealed that both methanol and acetone extracts were bactericidal with Minimum Inhibitory Concentration (MIC) of 312.5 μg/mL and 156.25 μg/mL and Minimum Bactericidal Concentration (MBC) of 625 μg/mL and 312.5 μg/mL, respectively. Fractional Inhibitory Concentration (FIC) indices were obtained via the chequerboard dilution assay where methanol extract-oxacillin, acetone extract-oxacillin, methanol extract-linezolid, and acetone extract-linezolid combinations exhibited synergism (FIC index ≤ 0.5). The synergistic action of the methanol extract-oxacillin combination was verified by time-kill analysis where bactericidal effect was observed at concentration of 1/8 × MIC of both compounds at 9.6 h compared to oxacillin alone. As such, these findings postulated that both extracts exert their anti-MRSA mechanism of action similar to that of vancomycin and provide evidence that the leaves ofC. odontophyllumhave the potential to be developed into antistaphylococcal agents.

Ozonolysis of unsaturated fatty acids. II. Esterification of the total products from the oxidative decomposition of ozonides with 2,2-dimethoxypropane

1967 ◽  
Vol 45 (13) ◽  
pp. 1405-1410 ◽  
Author(s):  
John D. Castell ◽  
R. G. Ackman
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Unsaturated Fatty Acids ◽  
Performic Acid ◽  
Acid Oxidation ◽  
Gas Liquid Chromatography ◽  
Positional Isomers ◽  
Flame Ionization ◽  
Hydrogen Flame

The total acidic products from the performic acid oxidation of the ozonide of methyl oleate formed in methanol may be esterified directly in a few hours with 2,2-dimethoxypropane. The ester concentrations are adequate for the determination of the positional isomers of monoethylenic fatty acids directly from the reaction mixture, using a hydrogen flame ionization gas–liquid chromatography detector. Dimethyl sulfoxide was not required to prevent the breakdown of 2,2-dimethoxypropane under the conditions employed.

Evaluation of Solvent Extraction Process for Asparagus racemosus Root Extract through the Determination of its Phenolic Content and Antioxidant Activity Assay

2021 ◽  
pp. 5108-5114
Author(s):  
Monika D. Bhalodiya ◽  
Jayant R. Chavda ◽  
Nilesh K Patel ◽  
Ajay I. Patel ◽  
Ravi A. Manek
Keyword(s):  
Methanol Extract ◽  
Phenolic Content ◽  
Acetone Extract ◽  
Total Phenolic ◽  
Asparagus Racemosus ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Aqueous Methanol ◽  
Antioxidant Assay ◽  
Saponin Content

This study is aimed to evaluate extraction capacity of different solvents through determining total phenolic content, total flavonoid content, total saponin content, and an antioxidant assay of different solvent extracts (toluene, dichloromethane, chloroform, ethyl acetate, ethanol, methanol, water, 60% aqueous methanol, 60% aqueous ethanol and 60% aqueous acetone) of Asparagus racemosus (A. racemosus) root. The 60% aqueous methanol shows the highest extracting yield, in contrast, toluene shows the lowest yield. Highest total phenolic content (220.8±0.74mg GAE/g), total flavonoid content (219.3±0.64mg QCE/g), total tannin content (108.4±0.88mg GAE/g) were found from acetone extract. The methanol extract showed the highest saponin content (579.4±2.85mg ESE/g). Antioxidant potential determines by using various in vitro methodologies such as DPPH, FRAP, and ABTS assay. The lowest IC50 value was found in acetone extract and thus it exhibited the highest antioxidant activity. The highest correlation was found between phenolic content and the antioxidant assay. It seems that phenolic contents are responsible for free radicle scavenging activity. From the observation, it concluded that acetone extract rich with polyphenolic content and methanol extract shows the highest amount of saponin content.

scholarly journals Chemical and Biological Profile and Allergenicity of Thymus baicalensis Plant of Mongolian Origin

Antioxidants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1905
Author(s):  
Tuya Narangerel ◽  
Michał Sójka ◽  
Radosław Bonikowski ◽  
Konrad Jastrząbek ◽  
Witold Sroczyński ◽  
...  
Keyword(s):  
Unsaturated Fatty Acids ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antimicrobial Properties ◽  
Volatile Oil ◽  
Inhibitory Effect ◽  
Food Supplement ◽  
Oil Composition ◽  
Polyphenolic Composition ◽  
Health Promoting

Thymus baicalensis is a medicinal plant recognized as a traditional Mongolian therapeutic and health-promoting food supplement. The aim of the study was to check the suitability of the tested plant for supporting the treatment of certain diseases. The following study is the first one to showcase the versatile scope of characteristics of T. baicalensis, including its volatile oil composition, polyphenolic composition, lipid composition, phenolic and flavonoid contents, antioxidant activity, antimicrobial properties and ingestive allergenicity. Myrcene, at 26.15%, was shown to be the most abundant component of the volatile oil. Compounds known as inherent components of the Thymus genus: thymol and carvacrol made up only about 0.24% of the extracted oil. As much as 10.11 g kg−1 of polyphenol compounds were identified as derivatives of luteolin-7-O-glucuronide. The lipid extract was found to be rich in palmitic acid (31.05%), while unsaturated fatty acids were not reported. Spectrophotometric determination of the phenols and flavonoids indicated 7.541 mg of gallic acid g−1 and 4.345 mg of quercitin g−1, respectively. The free radical scavenging activity was determined by the 2,2-difenylo-1-pikrylohydrazyl method at IC50 = 206.97 µg mL−1. The extracts also had a strong inhibitory effect on M. flavus and P. fluorescenes bacteria, as well as S. cerevisiae yeasts. The Bet v 1 and profilin allergens in T. baicalensis were reported at 175.17 ng g−1 and 1.66 ng g−1, respectively.

Chemical constituents, antifungal and antioxidative potential of Foeniculum vulgare volatile oil and its acetone extract

Food Control ◽  
2006 ◽  
Vol 17 (9) ◽  
pp. 745-752 ◽  
Author(s):  
Gurdip Singh ◽  
Sumitra Maurya ◽  
M.P. de Lampasona ◽  
C. Catalan
Keyword(s):  
Chemical Constituents ◽  
Volatile Oil ◽  
Acetone Extract ◽  
Foeniculum Vulgare
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