Acetylenic acids from fats of Santalaceae and Olacaceae: Seed and root oils of Exocarpus cupressiformis Labill

1959 ◽  
Vol 12 (2) ◽  
pp. 190 ◽  
Author(s):  
HH Hatt ◽  
ACK Triffett ◽  
PC Wailes
Keyword(s):  
Fatty Acids ◽  
Related Species ◽  
Ximenynic Acid ◽  
Ximenia Americana ◽  
Acetylenic Acids

Octadec-trans-11-en-9-ynoic acid (ximenynic acid) forms over 60 per cent, of the acids present as glycerides in the seed fat of Exocarpus cupressiformis Labill. The roots of this tree contain an oil which is mainly a fat with octadec-trans-13-en-9,11-diynoic acid forming 89 per cent. of the fatty acids. These two acids are also major components respectively of the seed and root fats of the related species E. stricta R.Br. The root fat of Ximenia americana Linn. is rich in acetylenic acids.

Acetylenic Acids from Fats of the Olacaceae and Santalaceae. IV. The Occurrence of Octadeca-trans-11,trans-13-dien-9-ynoic Acid in Plant Lipids

1960 ◽  
Vol 13 (4) ◽  
pp. 488 ◽  
Author(s):  
HH Hatt ◽  
ACK Triffett ◽  
PC Wailes
Keyword(s):  
Ximenynic Acid ◽  
Plant Lipids ◽  
Polyunsaturated Acids ◽  
Acetylenic Acids

The somatic lipids (from root, stem, or leaves) of one species from each of the genera : Ximenia (Olacaceae), Santalum and Leptomeria (Santalaceae) have been examined and the presence of the following acids established : (i) octadeca-trans-13-ene-9,ll-diynoic acid, (ii) octadeca-trans-11,trans-13-dien-9-ynoic acid, (iii) octadeca-trans- 11-en-9-ynoic (ximenynic) acid, and (iv) an octadeca-trans-trans-dienediynoic acid, not yet fully identified. The occurrence of (ii) and (iv) in Nature has not been previously observed. The seed fat of Leptomeria aphylla R.Br. has been examined and found to contain some 20 per cent. of ximenynic acid as glycerides. No conjugated polyunsaturated acids were found in the lipids of the sole Australian representative of the closely related Belanophoraceae family.

Constituents of some Curvularia species

1968 ◽  
Vol 21 (3) ◽  
pp. 783 ◽  
Author(s):  
RG Coombe ◽  
JJ Jacobs ◽  
TR Watson
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Related Species ◽  
Unsaturated Fatty Acids ◽  
Brefeldin A ◽  
Fatty Acid Esters ◽  
Curvularia Species ◽  
Acid Esters

Thirteen Gurvularia and related species were examined and the following metabolites obtained: brefeldin A, curvularin, curvulin, curvulinic acid derivatives, D-mannitol, 1,4,5,8-tetrahydroxy-2,6-dimethylanthraquinone, saturated and unsaturated fatty acids, and fatty acid esters.

Lithocalla (Ascomycota, Lecanorales), a new genus of leprose lichens containing usnic acid

2020 ◽  
Vol 52 (6) ◽  
pp. 425-435
Author(s):  
Alan Orange
Keyword(s):  
Fatty Acids ◽  
Phylogenetic Analysis ◽  
Related Species ◽  
New Genus ◽  
Usnic Acid ◽  
Type Locality ◽  
Falkland Islands ◽  
Closely Related Species

AbstractThe identity of Lecanora ecorticata has been uncertain due to conflicting reports of the presence of zeorin and the loss of the holotype. Phylogenetic analysis suggests that the species probably belongs in Ramalinaceae, where it is the first leprose species reported. Zeorin was found to be absent in recently collected material of L. ecorticata, including specimens from the type locality, and the report of zeorin in the lost holotype is considered to be due to contamination. A new genus, Lithocalla, is erected to accommodate L. ecorticata and a second closely related species, that occurs in the Falkland Islands, is newly combined as Lithocalla malouina. A lectotype is selected for L. ecorticata. Lithocalla is characterized by a leprose thallus containing usnic acid with fatty acids and terpenoids, but no zeorin; ascomata and conidiomata are unknown.

Bradyrhizobium daqingense sp. nov., isolated from soybean nodules

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 616-624 ◽  
Author(s):  
Jing Yu Wang ◽  
Rui Wang ◽  
Yan Ming Zhang ◽  
Hong Can Liu ◽  
Wen Feng Chen ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Sequence Analysis ◽  
Related Species ◽  
Type Strain ◽  
Type Species ◽  
Root Nodules ◽  
Rrna Gene ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type

Thirteen slow-growing rhizobial strains isolated from root nodules of soybean (Glycine max L.) grown in Daqing city in China were classified in the genus Bradyrhizobium based on 16S rRNA gene sequence analysis. Multilocus sequence analysis of IGS, atpD, glnII and recA genes revealed that the isolates represented a novel clade in this genus. DNA–DNA relatedness lower than 42.5 % between the representative strain CCBAU 15774T and the type strains of the closely related species Bradyrhizobium liaoningense USDA 3622T, Bradyrhizobium yuanmingense CCBAU 10071T and Bradyrhizobium betae LMG 21987T, further confirmed that this group represented a novel species. CCBAU 15774T shared seven cellular fatty acids with the three above-mentioned species, but the fatty acids 15 : 0 iso and summed feature 5 (18 : 2ω6,9c and/or 18 : 0 anteiso) were unique for this strain. The respiratory quinone in CCBAU 15774T was ubiquinone-10 and the cellular polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, cardiolipin and unknown aminolipid, polar lipid and phospholipid. In addition, some phenotypic features could be used to differentiate the novel group from the related species. On basis of these results, we propose the name Bradyrhizobium daqingense sp. nov., with CCBAU 15774T ( = LMG 26137T = HAMBI 3184T = CGMCC 1.10947T) as the type strain. The DNA G+C content of the type strain is 61.2 mol% (T m).

scholarly journals Isolation, Identification and Characterization of Ximenynic Acid with Anti-Aging Activity from Santalum Album

2020 ◽  
Vol 11 (2) ◽  
pp. 1394-1399
Author(s):  
Rakesh S Shivatare ◽  
Ramesh Musale ◽  
Priya Lohakare ◽  
Dipika Patil ◽  
Durga Choudhary ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Medicinal Plants ◽  
Average Molecular Weight ◽  
Gravimetric Analysis ◽  
Santalum Album ◽  
Hexane Extraction ◽  
Scanning Calorimetry ◽  
Plant Seed ◽  
Acetylenic Fatty Acids ◽  
Ximenynic Acid

Medicinal plants and its products have been used as a remedial agent in most irising countries for treating diseases. Furthermore, an increasing reliance on the use of medicinal plants in industrialized societies has been traced for the extraction and development of several drugs and chemotherapeutics from these herbal plants. Novel acetylenic fatty acids named Ximenynic acid (XMA) were successfully isolated from the seeds of Santalum album L by N-Hexane extraction. Ximenynic acid (or Santalbic acid) is one of the few acetylenic fatty acids occurring at higher levels in plant seed oils. Ximenynic acid predominantly exists in the seed oil of Santalaceae, Olacaceae, and Opiliaceae families. The structure of XMA was characterized by UV-visible spectroscopy, Infrared Spectrum(IR), NMR Spectroscopy, Differential scanning calorimetry (DSC), Thermal Gravimetric Analysis (TGA), X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy(FT-IR), LCMS spectral analysis. The antiaging activities were assessed by anti-collagenase enzyme assay. Structural analysis revealed that XMA was a crystalline material with a melting point of 38.25°C and an average molecular weight of 278 kDa.Which is composed of carboxylic acid, butylene acid, methylene, allylic in their structure. The antiaging assay showed that XMA exhibited significant collagenase inhibition activity as compared with Catechin. These findings suggested that the acetylenic fatty acids XMA could be served as a novel antiaging in Pharmaceutical as well as the cosmetic industry.

scholarly journals An Overview on the Properties of Ximenia Oil Used as Cosmetic in Angola

Biomolecules ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 18 ◽  
Author(s):  
Gabriel Satoto ◽  
Ana Sofia Fernandes ◽  
Nuno Saraiva ◽  
Fernando Santos ◽  
Nuno Neng ◽  
...  
Keyword(s):  
Thin Film ◽  
Fatty Acids ◽  
Chemical Properties ◽  
Human Keratinocytes ◽  
Long Chain Fatty Acids ◽  
Small Tree ◽  
Local Populations ◽  
Ximenia Americana ◽  
Total Fatty Acids ◽  
Long Chain

Ximenia (Ximenia americana L.) is a shrub, or small tree, native from Africa and spread across different continents. In Angola, the seeds oil is used by local populations, to prevent sunburn, to smooth and hydrate the skin, and to give it a pleasant color and elasticity, to prevent stretch marks, in pregnant woman, and also as hair conditioner. Herein, an oil sold in the region (LPO), and two others extracted in laboratory, from seeds collected in the same region, were investigated in terms of their composition, chemical properties, UV transmission. The three oils are similar although the LPO is more acidic, 0.48 mg KOH/g. GC-MS analysis indicated that the major components are the fatty acids, oleic (31.82%), nervonic (11.09%), ximenic (10.22%), and hexacosa-17,20,23-trienoic acids (14.59%). Long chain fatty acids, n ≥ 20, accounted for 51.1% of the total fatty acids. A thin film of the oil showed a reduction in transmittance from 200 to 300 nm. Viscosity studies of the LPO indicated that at normal temperature of skin, the oil can be spread over the skin as a thin film. At concentrations up to 10 µg/mL, the LPO is not toxic to human keratinocytes, suggesting the safety of this oil.

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