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Search for "unsaturated fatty acid" in Full Text gives 8 result(s) in Beilstein Journal of Organic Chemistry.
Discrimination of β-cyclodextrin/hazelnut (Corylus avellana L.) oil/flavonoid glycoside and flavonolignan ternary complexes by Fourier-transform infrared spectroscopy coupled with principal component analysis
Beilstein J. Org. Chem. 2023, 19, 380–398, doi:10.3762/bjoc.19.30
- principal component analysis (FTIR–PCA). These innovative complexes combine the characteristics of the three components and improve the properties of the resulting material such as the onsite protection against oxidative degradation of hazelnut oil unsaturated fatty acid glycerides. Also, the apparent water
- unsaturated fatty acid glycerides significantly decreases the stability of hazelnut oil. Only one study was performed on the γ-CD nanoencapsulation of hazelnut oil by a co-precipitation method and the thermal decomposition of the complex was evaluated by TG [34]. One way of enhancing the oxidative stability
Nostochopcerol, a new antibacterial monoacylglycerol from the edible cyanobacterium Nostochopsis lobatus
Beilstein J. Org. Chem. 2023, 19, 133–138, doi:10.3762/bjoc.19.13
- , 129.1, and 128.9) observed in the 13C NMR spectrum (Table 1), revealing that compound 1 has a linear structure. The 1H NMR spectrum contained resonances typical of an unsaturated fatty acid, such as non-conjugated olefins with four-proton integration (δH ca. 5.34–5.32, 4H), a bisallylic methylene (δH
Unsaturated fatty acids and a prenylated tryptophan derivative from a rare actinomycete of the genus Couchioplanes
Beilstein J. Org. Chem. 2021, 17, 2939–2949, doi:10.3762/bjoc.17.203
- were weakly inhibitory against Kocuria rhizophila at MIC 100 μg/mL and none were cytotoxic against P388 at the same concentration. Keywords: Couchioplanes; prenylated tryptophan; rare actinomycete; unsaturated fatty acid; Introduction Actinomycetes, a subgroup of filamentous Gram-positive bacteria
- , a similarly methyl-branched unsaturated fatty acid ester, which is produced by type I polyketide synthase in a Streptomyces strain by a heterologous expression experiment [33]. These facts suggest that 1–5 could be byproducts from the biosynthesis of larger polyketides, but further investigation is
3-Acetoxy-fatty acid isoprenyl esters from androconia of the ithomiine butterfly Ithomia salapia
Beilstein J. Org. Chem. 2020, 16, 2776–2787, doi:10.3762/bjoc.16.228
- species in regions where they co-occur. Furthermore, the occurrence of positional isomers of unsaturated fatty acid derivatives indicates activity of two different desaturases within these butterflies, Δ9 and Δ11, which has not been reported before in male Lepidoptera. Keywords: fatty acid esters; mass
- signal might indicate remains speculative. Nevertheless, the unusual location of the double bonds suggests an active function of the isoprenyl ester as signaling compounds [42]. Unsaturated fatty acid derivatives in pheromone glands are typically introduced by desaturases acting on saturated precursors
Two antibacterial and PPARα/γ-agonistic unsaturated keto fatty acids from a coral-associated actinomycete of the genus Micrococcus
Beilstein J. Org. Chem. 2020, 16, 297–304, doi:10.3762/bjoc.16.29
- ongoing screening program to discover new natural products from coral-associated bacteria, we have recently reported a catecholate siderophore, labrenzbactin, from an alphaproteobacterium Labrenzia [17] and an unsaturated fatty acid with unique methylation pattern from a gammaproteobacterium Microbulbifer
Isolation and biosynthesis of an unsaturated fatty acid with unusual methylation pattern from a coral-associated bacterium Microbulbifer sp.
Beilstein J. Org. Chem. 2019, 15, 2327–2332, doi:10.3762/bjoc.15.225
- analysis revealed that 1 is an unsaturated fatty acid in which a methyl group is located in an uncommon position as a natural product. Feeding experiments of 13C-labeled precursors clarified that ʟ-methionine-derived methylation takes place at the carbon which is derived from the carbonyl carbon of acetate
- of metabolites in a marine-derived Microbulbifer sp. led to the discovery of a unique unsaturated fatty acid, (2Z,4E)-3-methyl-2,4-decadienoic acid (1) in which the carbon originated from the carbonyl carbon of an acetate unit is methylated, providing a quite rare case of C-methylation pattern in
Ene–yne cross-metathesis with ruthenium carbene catalysts
Beilstein J. Org. Chem. 2011, 7, 156–166, doi:10.3762/bjoc.7.22
- . Examples involve ethylene, terminal olefins, cyclic olefins, diene metathesis with alkynes and finally applications in unsaturated fatty acid ester transformations. Review General considerations on EYCM The EYCM is an attractive bimolecular transformation as it is an atom economical reaction which results
- )prop-1-ene, 3-n-butoxyprop-1-ene and allyl acetate. Applications in fatty acid ester derivative transformations The direct transformation of unsaturated fatty acid esters by EYCM has never been performed. This is not surprising as no catalyst has been able to perform the cross-metathesis of alkynes
- with acyclic internal olefins up to now. This would allow the introduction of a conjugated diene system into an aliphatic hydrocarbon chain. However, the production of terminal olefins upon ethenolysis of unsaturated fatty acid esters followed by cross-metathesis with an alkyne in one pot has recently
Application of the diastereoselective photodeconjugation of α,β-unsaturated esters to the synthesis of gymnastatin H
Beilstein J. Org. Chem. 2011, 7, 151–155, doi:10.3762/bjoc.7.21
- , gymnastatins 10 constitute a family of compounds isolated from Gymnascella dankaliensis which grows in symbiosis with the marine sponge Halichondria japonica [10] (Figure 2). Gymnastatins 10 possess a common unsaturated fatty acid residue connected to a tyrosine subunit. These compounds have been reported to
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