Latest Research News on Meliaceae: Oct – 2019

The Chemistry of the Limonoids from Meliaceae

The purpose of this text is to review the chemistry of the limonoids isolated from plants of the universe Meliaceae; limonoids from the family Rutaceae and Cneoraceae aren’t enclosed. The chemistry of the limonoids was last reviewed during this series by Dreyer (84); a newer review is by Connolly, Overton and Polonsky (73). categorization aspects are reviewed recently by this author (199), and chemistry and phyto-chemistry are mentioned at a recent meeting (81). this article sets intent on review advances in limonoid chemistry since the last review during this series (84); the tables but square measure meant to be comprehensive. [1]

A monograph of neotropical Meliaceae (with accounts of the subfamily Swietenioideae by B. T. Styles and the chemotaxonomy by D. A. H. Taylor)

A revision of the yankee rosid dicot family (about a hundred and twenty neotropical species) as well as sections on compartmentalization history, morphology, generic variation, distribution and evolution. The systematic treatment, which has several line drawings and maps, offers an outline of the family, a key to the fourteen genera coated, and sections on every genus as well as species keys, descriptions and distributions, and lists of uncertain and excluded species. The chapter on chemotaxonomy worries with the prevalence of limonoids (characteristic alter triterpenes); structural formulae are given and information are tabulated for species that are with chemicals analysed. conjointly enclosed are a numerical list of taxa coated and indexes of vernacular and scientific names. [2]

The Chemistry of the Meliaceae and Ptaeroxylaceae of Southern and Eastern Africa and Madagascar

The Meliaceae family is well diagrammatic in Southern and japanese Africa and Madagascar. Plants point size from glorious forest trees to little shrubs. sure species ar necessary as timber trees and that they have wide-ranging uses in ethnomedicine within the region, prompting intensive investigation. Twenty-two of the cardinal genera of the Meliaceae occur within the region beneath review, and, of these, the chemistry of xliv species, from nineteen genera, has been investigated. Compounds isolated embody limonoids, mono-, di-, sesqui-, and triterpenoids, coumarins, chromones, lignans, flavonoids and different phenolics. [3]

Genetic diversity and spatial structure within a natural stand of a tropical forest tree species, Carapa procera (Meliaceae), in French Guiana

Isozyme markers were accustomed characterize levels of diversity, constitution structure and spatial  genetic structure for the low-density tree species, Carapa procera (five adults per ha), inside three hundred HA of endless tropical rain forest stand. each seed and adult stages were investigated, a high level of genetic diversity being found in each. Fixation indices showed excess state in seeds, and excess state in adults, which could be caused selectively in favour of heterozygotes. Autocorrelation analysis of the spatial  distribution of genotypes discovered no vital pattern in adults or in seeds before diffusion, and there was a high variability in correlogram shapes among alleles. [4]

Phytochemical and Structure Elucidation of Stigmasterol from the Stem Bark of Pseudocedrela kotschyi (Harms) (Meliaceae)

Aim: To perform phytochemical screening, isolate and characterize elements from the n-hexane extract of Pseudocedrela kotschyi stem bark.

Methodology: The stem bark of P. kotschyi was collected, ready and thoroughly extracted mistreatment analytical stratified n-hexane and phytochemical constituents were determined in step with the quality methodology. The chromatography technique was wont to isolate and purify compound from n-hexane extract mistreatment gradient extraction techniques. The isolated compound (PKV) obtained was subjected to physical, chemical and spectral analysis by ultraviolet illumination, IR, 1D and 2nd proton magnetic resonance.  [5]

Reference

[1] Taylor, A.D., 1984. The chemistry of the limonoids from Meliaceae. In Fortschritte der Chemie organischer Naturstoffe/Progress in the Chemistry of Organic Natural Products (pp. 1-102). Springer, Vienna. (Web Link)

[2] Pennington, T.D., 1981. A monograph of neotropical Meliaceae (with accounts of the subfamily Swietenioideae by BT Styles and the chemotaxonomy by DAH Taylor) (No. 28) (Web Link)

[3] Mulholland, D.A., Parel, B. and Coombes, P.H., 2000. The chemistry of the Meliaceae and Ptaeroxylaceae of southern and eastern Africa and Madagascar. Current Organic Chemistry, 4(10), (Web Link)

[4] Genetic diversity and spatial structure within a natural stand of a tropical forest tree species, Carapa procera (Meliaceae), in French Guiana
Agnes Doligez & Helene I Joly
Heredityvolume 79, (Web Link)

[5] Atinga, V., Ahmed, A., Nuhu, H., A. Ayeni, E. and Dauda, G. (2018) “Phytochemical and Structure Elucidation of Stigmasterol from the Stem Bark of Pseudocedrela kotschyi (Harms) (Meliaceae)”, Asian Journal of Research in Medical and Pharmaceutical Sciences, 4(1), (Web Link)

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