Results 91 to 100 of about 737,596 (164)

Biotransformation of 3-hydroxydibenzo-α-pyrone into 3,8 dihydroxydibenzo-α-pyrone and aminoacyl conjugates by Aspergillus niger isolated from native "shilajit"

, 2009
"Shilajit" is a panacea in Ayurveda, the Indian traditional system of medicine. The major bioactives of "shilajit" have been identified as dibenzo-α-pyrones (DBPs), its oligomers and aminoacyl conjugated derivatives.
Nath, P., Banerjee, D., Ghosh, R., Ghosal, S., Islam, A., Mazumder, U.K..   +5 more
core   +2 more sources

Identification and characterization of compounds from Chrysosporium multifidum, a fungus with moderate antimicrobial activity isolated from Hermetia illucens gut microbiota.

PLoS ONE, 2019
The gut microbiota of insects is composed of a wide range of microorganisms which produce bioactive compounds that protect their host from pathogenic attack.
Yesenia Correa, Billy Cabanillas, Valérie Jullian, Daniela Álvarez, Denis Castillo, Cédric Dufloer, Beatriz Bustamante, Elisa Roncal, Edgar Neyra, Patricia Sheen, Michel Sauvain   +10 more
doaj   +1 more source

Nigerapyrones A–H, α-Pyrone Derivatives from the Marine Mangrove-Derived Endophytic Fungus Aspergillus niger MA-132

, 2016
Eight new α-pyrone derivatives, namely, nigerapyrones A–E (1–5) and nigerapyrones F–H (8–10), along with two known congeners, asnipyrones B (6) and A (7), were isolated from Aspergillus niger MA-132, an endophytic fungus obtained from the fresh tissue of
Bin-Gui Wang (536712), Li Meng (136180), Cai-Guo Huang (1669276), Shu-Shan Gao (1823578), Peter Proksch (460847), Zhuo Shang (1457281), Chun-Shun Li (1667332), Dong Liu (115204), Xiao-Ming Li (1523278)   +8 more
core   +1 more source

Diaporpyrone E, an undescribed α-pyrone from the endophytic fungus Diaporthe sp. CB10100

, 2023
An undescribed α-pyrone diaporpyrone E (1), and three known nucleotides, 5’-O-acetyl uridine (2), 5’-O-acetyl thymidine (3), and adenine (4), were identified from Diaporthe sp.
Jiayao Long (15359494), Dian Peng (5042159), Huaiyi Huang (1504426), Genyun Tang (2935650), Hong Pu (5449697), Qingxian Ma (15359488), Xueshuang Huang (10815108), Yong Huang (15745), Yani Zhong (15359491), Yanwen Duan (633516)   +9 more
core   +1 more source

Gombapyrones, new α-pyrone metabolites produced by Streptomyces griseoruber Acta 3662

, 2009
Gombapyrones A–D, new members of the α-pyrone family of secondary metabolites, were produced by Streptomyces griseoruber Acta 3662, which was isolated from bamboo tree rhizosphere.
Roderich D Süssmuth, Soleiman Helaly, Schneider, Kathrin, Tan, Geok Yuan Annie, Imhoff, Johannes F., Süssmuth, Roderich D., Fiedler, Hans-Peter, Johannes F Imhoff, Hans-Peter Fiedler, Sabaratnam Vikineswary, Heidi Zinecker, Vikineswary, Sabaratnam, Zinecker, Heidi, Nachtigall, Jonny, Jonny Nachtigall, Geok Yuan Annie Tan, Kathrin Schneider, Helaly, Soleiman   +17 more
core   +1 more source

Characterization and evaluation of coconut aroma produced by Trichoderma viride EMCC-107 in solid state fermentation on sugarcane bagasse

Electronic Journal of Biotechnology, 2015
Background: Sugarcane bagasse was shown to be an adequate substrate for the growth and aroma production by Trichoderma species. In the present work the ability of Trichoderma viride EMCC-107 to produce high yield of coconut aroma in solid state ...
Hoda Hanem Mohamed Fadel, Manal Gomaa Mahmoud, Mohsen Mohamed Selim Asker, Shereen Nazeh Lotfy   +3 more
doaj   +1 more source

Synthesis of Functionalized α-Pyrone and Butenolide Derivatives by Rhodium-Catalyzed Oxidative Coupling of Substituted Acrylic Acids with Alkynes and Alkenes

, 2016
The straightforward and efficient synthesis of α-pyrone and butenolide derivatives has been achieved by the rhodium-catalyzed oxidative coupling reactions of substituted acrylic acids with alkynes and alkenes, respectively.
Satoshi Mochida (156566), Koji Hirano (1452925), Tetsuya Satoh (1489648), Masahiro Miura (308443)   +3 more
core   +1 more source

Isolation and Structure Elucidation of Secondary Metabolites From an Endophytic Fungus

Natural Product Communications, 2019
Fractionation of the EtOAc-soluble fraction of the liquid fermentation of an endophytic fungus Annulohypoxylon ilanense associated with the wood of medicinal plant Cinnamomum species resulted in the isolation of 1 new α-pyrone, ilanpyrone ( 1 ), along ...
Ming-Jen Cheng, Shuen-Shin Yang, Ming-Der Wu, Hsun-Hsuo Chang, Yueh-Hsiung Kuo, Sung-Yuan Hsieh, Jih-Jung Chen, Ho-Cheng Wu   +7 more
doaj   +1 more source

6-Pentyl-α-Pyrone from Trichoderma gamsii Exert Antioxidant and Anti-Inflammatory Properties in Lipopolysaccharide-Stimulated Mouse Macrophages. [PDF]

Antioxidants (Basel), 2023
Lim JS, Hong JH, Lee DY, Li X, Lee DE, Choi JU, Lee KY, Kim KH, Cho YC.   +8 more
europepmc   +1 more source

Photoinduced transformation of matrix-isolated methyl 2-pyrone-3-carboxylate into methyl 2-pyrone-5-carboxylate via intramolecular hydrogen shift in open-ring aldehyde–ketene

, 2008
Photochemical transformations of methyl 2-pyrone-3-carboxylate (mp3c) were studied by matrix-isolation technique. The dominating primary photoreaction induced by UV (λ > 295 nm) light was α-bond cleavage leading to open-ring aldehyde–ketene.
Lapinski, Leszek, Reva, Igor, Nowak, Maciej J., Fausto, Rui   +3 more
core   +1 more source