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8061por Fariña-Ramos, Marta, García, Celina, Martín, Víctor S., Álvarez-Méndez, Sergio J.“…For instance, natural products containing multisubstituted oxygenated rings and macrocyclic lactones are recurrently selected as targets for developing total syntheses. …”
Publicado 2021
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8062“…Recently, molecule signals and regulators involved in quorum sensing (QS), such as homoserine lactones, the luxR/luxI system, hdtS, and psoR, have been detected in spoiled products and bacterial spoiler species; this evidence suggests the role of bacterial cross talk in dairy spoilage and paves the way towards the search for novel preservation strategies based on QS inhibition. …”
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8063“…In this study, we modified the metabolism of the fungus Aspergillus oryzae to enable the synthesis of triketide lactone (TKL), the product of the modular polyketide synthase DEBS1-TE engineered from bacteria. …”
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8064por Urvoy, Marion, Lami, Raphaël, Dreanno, Catherine, Delmas, Daniel, L’Helguen, Stéphane, Labry, Claire“…In this study, we investigated whether N-acylhomoserine lactones (AHLs), a type of QS signal, could regulate both hydrolytic activities and the bacterial community composition (BCC) of marine planktonic assemblages. …”
Publicado 2021
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8065por Rodriguez-Paredes, Maria Belén, Vallejo-Janeta, Paolo Alexander, Morales-Jadan, Diana, Freire-Paspuel, Byron, Ortiz-Prado, Esteban, Henriquez-Trujillo, Aquiles R., Rivera-Olivero, Ismar A., Jaramillo, Tatiana, Lozada, Tannya, Garcia-Bereguiain, Miguel Angel“…A total of 4,003 people from 15 cantons were tested for SARS-CoV-2 by reverse-transcriptase quantitative polymerase chain reaction, resulting in an overall infection rate of 16.13% for SARS-CoV-2, with several communities > 30%. …”
Publicado 2022
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8066“…Australian and New Zealand chemical residue data from greasy wool have been consolidated and analysed for organophosphate, synthetic pyrethroid, insect growth regulator, neonicotinoid, macrocyclic lactone and spinosad active. Trend analysis has been applied to time domain data to evaluate advancements in ectoparasiticide technology after revising environmental, animal health and welfare standards. …”
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8067por Ezquerra-Aznárez, José Manuel, Degiacomi, Giulia, Gašparovič, Henrich, Stelitano, Giovanni, Sammartino, Josè Camilla, Korduláková, Jana, Governa, Paolo, Manetti, Fabrizio, Pasca, Maria Rosalia, Chiarelli, Laurent Roberto, Ramón-García, Santiago“…Avermectins are macrocyclic lactones with anthelmintic activity. Recently, they were found to be effective against Mycobacterium tuberculosis, which accounts for one third of the worldwide deaths from antimicrobial resistance. …”
Publicado 2022
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8068“…These emulsions were then induced by CaCl(2), transglutaminase (TGase) and glucono-δ-lactone (GDL) to form emulsion gels. The optimum coagulant concentrations were obtained for peanut and soy protein-stabilized emulsion gels, such as CaCl(2) (0.15 and 0.25 g/dL, respectively), TGase (25 U/mL) and GDL (0.3% and 0.5%, w/v, respectively). …”
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8069por Adu, Simms A., Twigg, Matthew S., Naughton, Patrick J., Marchant, Roger, Banat, Ibrahim M.“…Cell viability and morphological analyses revealed that glycolipids have differential effects on the skin cells dependent on their chemical structure. Lactonic sophorolipids and mono-rhamnolipids were shown to have a significantly detrimental effect on melanoma cell viability compared to healthy human keratinocytes. …”
Publicado 2022
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8070“…This is the first assessment of antimicrobial sesquiterpene lactones from the roots of elecampane, naturalised in Ireland. …”
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8071por Calzada, Fernando, Bautista, Elihu, Hidalgo-Figueroa, Sergio, García-Hernández, Normand, Velázquez, Claudia, Barbosa, Elizabeth, Valdes, Miguel, Solares-Pascasio, Jesús Iván“…Incomptines A (IA) and B (IB) are two sesquiterpene lactones with antiprotozoal, antibacterial, cytotoxic, antitumor, spermicidal, and phytotoxic properties. …”
Publicado 2022
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8072por Carlin, Silvia, Lotti, Cesare, Correggi, Ludovica, Mattivi, Fulvio, Arapitsas, Panagiotis, Vrhovšek, Urška“…In red wines, a moderate increase was observed for some lactones. Some unwanted compounds, such as 2-aminoacetophenone (2-AAP), showed a notable increase in some Gewürztraminer wines, exceeding the olfactory threshold.…”
Publicado 2022
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8073“…Additionally, the survey data were matched with data from the cantonal farm census, which contains information on farm characteristics.…”
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8074por Nunes, Ana R., Gonçalves, Ana C., Pinto, Edgar, Amaro, Filipa, Flores-Félix, José D., Almeida, Agostinho, Guedes de Pinho, Paula, Falcão, Amílcar, Alves, Gilberto, Silva, Luís R.“…A total of 117 volatile compounds were identified using HS-SPME/GC-MS, distributed among different chemical classes: 31 aldehydes, 14 alcohols, 16 ketones, 30 esters, 4 acids, 4 monoterpenes, 3 norisoprenoids, 4 hydrocarbons, 7 heterocyclics, 1 lactone, 1 phenol, and 2 phenylpropenes. Benzaldehyde, 4-methyl-benzaldehyde, hexanal, lilac aldehyde, and 6-methyl-5-hepten-2-one were the major volatile compounds. …”
Publicado 2022
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8075por Yang, Pingping, Yang, Xingran, Sun, Liran, Han, Xiaobing, Xu, Lu, Gu, Wei, Zhang, Min“…In order to better understand the toxicity effects of cadmium, third instar larvae of Drosophila melanogaster (Canton-S strain) were exposed to different concentrations (1.125 mg/kg, 2.25 mg/kg, 4.5 mg/kg, and 9 mg/kg) of cadmium. …”
Publicado 2022
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8076por Soliman, Melad F., Shetaia, Youssria M., Tayel, Ahmed A., Munshi, Alaa M., Alatawi, Fuad A., Alsieni, Mohammed A., Al-Saman, Mahmoud A.“…The infra-red analysis revealed the presence of lactone ring stretching vibrations at 1766.72 cm(−1). …”
Publicado 2022
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8077“…Interference with quorum-sensing (QS) intercellular communication systems by the enzymatic disruption of N-acylhomoserine lactones (AHLs) in Gram-negative bacteria has become a promising strategy to fight bacterial infections. …”
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8078por Weiny, James A., Boeglin, William E., Calcutt, M. Wade, Stec, Donald F., Brash, Alan R.“…By the early stages of autoxidation (∼10% conversion of arachidonic acid), the major products detected by LC-MS and HPLC-UV were the 14,15-, 11,12-, and 8,9-EETs, with the 5,6-EET mainly represented as the 5-δ-lactone-6-hydroxyeicosatrienoate as established by (1)H-NMR. …”
Publicado 2021
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8079por El-Shahir, Amany A., El-Wakil, Deiaa A., Abdel Latef, Arafat Abdel Hamed, Youssef, Nora H.“…In addition, Phenol, 2,5-bis(1,1-dimethylethyl) (40.24%) and Decane, 2-methyl-(18.53%) were the most abundant components in the leaf extract, and the presence of D-mannonic acid, 2,3,5,6-tetrakis-o-(trimethylsilyl), and γ-lactone (22.72%) were major components in fruits extract. …”
Publicado 2022
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8080por Rieusset, Laura, Rey, Marjolaine, Wisniewski-Dyé, Florence, Prigent-Combaret, Claire, Comte, Gilles“…Interestingly, production of Pseudomonas bioactive metabolites, such as phloroglucinol, phenazines, pyrrolnitrin, or acyl homoserine lactones, are modified in the presence of wheat root extracts. …”
Publicado 2022
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