Results 31 to 40 of about 6,035 (254)
Biosynthesis of food constituents: Natural pigments: Part 1
Czech Journal of Food Sciences, 2007 This review article gives a survey of the generally accepted biosynthetic pathways that lead to the most important natural pigments in organisms closely related to foods and feeds.
Jan Velíšek +2 more
doaj +1 more source
Orthoporus fuscipes (PORAT, 1888) (Juliformia; Spirostreptidae): population structure and defensive secretion chemical analysis [PDF]
Anais da Academia Brasileira de CiênciasDiplopods are terrestrial arthropods important for the dynamics of terrestrial ecosystems. One of the reasons for that can be their low predation rate due to their defensive secretion.
JULIA A. ROMÃO +8 more
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The ground state fundamentals of p-benzoquinone and p-benzoquinone-d4 [PDF]
Journal of Molecular Spectroscopy, 1974 Abstract The solid state infrared and Raman spectra of p -benzoquinone and several isotopic derivatives are reported and compared with the results of previous solution and vapor phase studies and with the results of previously published normal coordinate analyses.
Dunn, Thomas M., Francis, Anthony H.
openaire +2 more sources
Cytotoxicity of the Defensive Secretion from the Medicinal Insect Blaps rynchopetera
Molecules, 2017 Blaps rynchopetera Fairmaire has long been used as a folk medicine by the Yi and Bai ethnic groups in China to treat fever, cough, gastritis, boils, and tumors. In the present study, the cytotoxicity of the defensive secretion (TDS) of B.
Huai Xiao +9 more
doaj +1 more source
Egg Production Constrains Chemical Defenses in a Neotropical Arachnid. [PDF]
PLoS ONE, 2015 Female investment in large eggs increases the demand for fatty acids, which are allocated for yolk production. Since the biosynthetic pathway leading to fatty acids uses the same precursors used in the formation of polyketides, allocation trade-offs are ...
Taís M Nazareth, Glauco Machado
doaj +1 more source
Synthesis and Biological Evaluation of 2,5-Bis(alkylamino)-1,4-benzoquinones
Molecules, 2010 A series of twelve 2,5-bis(alkylamino)-1,4-benzoquinones were prepared in yields ranging from 9–58% via the reaction between p-benzoquinone and various amines.
Cláudia Pessoa +8 more
doaj +1 more source
Organics, 2021 Illisimonin A is a new sesquiterpene isolated from Illicium simonsii, and it possesses a novel 5/5/5/5/5 pentacyclic skeleton. The tricyclic skeleton of illisimonin A, tricyclo[5.2.1.01,5]decane, is presumed to be biosynthesized from allo-cedranes via a ...
Takahiro Suzuki +5 more
doaj +1 more source
Painful violaceous pigmentation, a clinical challenge and diagnostic approach in a tropical country
Acta Médica Peruana, 2022 Millipedes are not considered poisonous animals, although in some cases their chemical defense mechanisms may be deleterious for human beings, manifesting as erythematous, purpuric and/ or cyanotic lesions alongside local pain and paresthesia. According
Oscar Fabián Rojas-Gómez +5 more
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Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer
Advanced Functional Materials, EarlyView.Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero +12 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source