Results 91 to 100 of about 15,472 (254)
International Journal of Technology, 2020 Mangosteen pericarp extract contains a high amount of xanthones, which are secondary plant metabolites that exhibit high antioxidant activities as well as beneficial pharmacological properties, but low bioavailabilities.
Elsa Anisa Krisanti +3 more
doaj +1 more source
Phytochemical Analysis, Volume 37, Issue 2, Page 330-343, March 2026.ABSTRACT Introduction Lichexanthones are the major xanthones found in lichens. They present a high degree of isomerism, which makes their identification tedious. Xanthones are known to occur in lichens according to chemosyndromes, and these compounds act as chemotaxonomic markers.
Solenn Ferron +5 more
wiley +1 more source
Uji Aktivitas Antibakteri Senyawa Xanton dan Kompleks Inklusi Sulfonatokaliks[4]arena-xanton [PDF]
, 2016 Telah dilakukan penelitian tentang pembentukkan kompleks inklusi sulfonatokaliks[4]arena (SC[4]A) dengan senyawa xanton serta uji aktivitas antibakteri terhadap Escherichia coli dan Staphylococcus aureus.
S, HERLANI FELIANA
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Mechanism and Application of Baker–Venkataraman O→C Acyl Migration Reactions [PDF]
, 2014 This literature review focuses on the O→C acyl migration of aryl esters to yield the corresponding 1,3-dicarbonyl products—a reaction known as the Baker–Venkataraman rearrangement—and outlines their subsequent transformations.
Ameen, Dana, Snape, Timothy James
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Hypericum perforatum cultures as a tool to study plant defence mechanisms against anthracnose (colletotrichum gloeosporioides) [PDF]
, 2006 To elucidate the defence mechanisms of Hypericum perforatum L. against Colletotrichum gloeosporioides, we utilized cell suspension cultures. When primed with methyl jasmonate, H.
Conceição, Luís F. R. +3 more
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Chemical Constituents and Biological Activities From Garcinia Maingayi and Garcinia Parvifolia [PDF]
, 2005 In this present study, the stem bark of Garcinia maingayi and Garcinia parvifolia were investigated and resulted in the isolation of nine compounds. There are no previous reports on chemical components and biological activities from Garcinia maingayi ...
Lin, Cheow Yuen
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Química Nova, 2013 The triplet excited state of xanthone was generated and characterized by laser flash photolysis in acetonitrile (λmax=620 nm; t=1.8 ms) and in ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [bmim.PF6] (λmax=620 nm; t=3.0 ms). It reacts with
Ada Ruth Bertoti +1 more
doaj +1 more source
Pengaruh Pemberian Ekstrak Kulit Buah Manggis (Garcinia Mangostana L.) Terhadap Kualitas Spermatozoa Wistar Jantan (Rattus Norvegicus) Yang Diberi Paparan Suhu Panas [PDF]
, 2015 : High temperatures lead to oxidative stress which can decrease the quality of spermatozoa. Mangosteen rind contains polyphenols inter alia xanthones which have antioxidant properties.
Queljoe, E. D. (Edwin) +2 more
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Photochemistry of N-(selenoalkyl)-phthalimides. Formation of N, Se-heterocyclic systems [PDF]
, 2015 A variety of N-(selenomethyl)alkyl-phthalimides (alkyl = -(CH2)n-; n = 2-5, 1a, b, d, e) and N-(selenobenzyl)propyl phthalimide (1c) were synthesized and their photochemistry was studied at λ = 300 nm.
Argüello, Juan Elias +3 more
core +1 more source