Topic
Flavanone
About: Flavanone is a research topic. Over the lifetime, 1965 publications have been published within this topic receiving 54729 citations. The topic is also known as: flavanones.
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TL;DR: A significant increase in the antifungal effect of the substituted flavones could be observed if mixtures in combination with the unsubstituted flavone or flavanone were used.
38 citations
TL;DR: In a cross between a yellow-seeded variety, Abu Taiman, and a white-seeding variety, CK 60, the F1 produced red seeds, which produced the red anthocyanidins, luteolinidin and apigeninidin.
Abstract: In a cross between a yellow-seeded variety, Abu Taiman, and a white-seeded variety, CK 60, the F1 produced red seeds. The yellow pigment in Abu Taiman was tentatively identified as erodictyol chalcone, and the red seeds, when heated with mineral acid, produced the red anthocyanidins, luteolinidin and apigeninidin. Pericarp colour in the cross studied, appeared to be controlled by two independent factors, denoted by Y and R. While Y was a basic gene for the synthesis of the flavonoid skeleton, gene R appeared to control the reduction of the flavanone (eriodictyol) into its corresponding pentahydroxyflavan (luteoforol) from which the red anthocyanidin luteolinidin, was produced. A pathway for the biosynthesis of luteolinidin has been suggested.
38 citations
TL;DR: The naringenin 8-dimethylallyltransferase (EC 2.5.1) was characterized in this article, and the enzyme was enantiospecific for (-)-(2S)-naringin and utilized 3,3-dimmethylallyl diphosphate as sole prenyl donor.
38 citations
TL;DR: The fragmentation of flavonoid compounds by electron impact has been studied and the following results described: 1) Chalcones gave the usual fragmentation pattern; however, 2′-hydroxy chalcones showed complex spectra according to the isomerization of chalcone to flavanone.
Abstract: The fragmentation of flavonoid compounds by electron impact has been studied and the following results described: 1) Chalcones gave the usual fragmentation pattern; however, 2′-hydroxy chalcones showed complex spectra according to the isomerization of chalcone to flavanone. 2) The fragmentation pathways of flavones were decided by comparison with many kinds of halogen-substituted flavones. 3) Isoflavone gave the M-1 ion as the base peak, and no loss of CO was observed.
38 citations
TL;DR: In combination with differential pulse voltammetry (DVP), the specific redox-chemical contributions of the ring A m-dihydroxyl groups could be explored more specifically in addition to those of the traditionally investigated o-diverse groups of ring B.
Abstract: The flavanol (±)-catechin shows an OH group but no 4-keto group on ring C (C3), and no conjugation between ring A and B. The related flavanone (+)-eriodictyol has a keto group on C4 but no 3-OH group on ring C. (+)-Taxifolin, another flavanone, has an OH on C3 and a keto group on C4 of the C ring. Deoxyribose degradation assay systems, with hydrogen peroxide and ascorbic acid either added or omitted, were performed in variants in which Fe(III) was added in a complex with ethylenediaminetetraacetic acid (EDTA). In combination with differential pulse voltammetry (DVP), the specific redox-chemical contributions of the ring A m-dihydroxyl groups could be explored more specifically in addition to those of the traditionally investigated o-dihydroxyl groups of ring B.
38 citations