Occurrence of Various Chemotypes in Niaouli (Melaleuca quinquenervia) Essential Oils from Madagascar Using Multivariate Statistical Analysis

1994 ◽  
Vol 42 (5) ◽  
pp. 1177-1182 ◽  
Author(s):  
Panja A. R. Ramanoelina ◽  
Josette Viano ◽  
Jean-P. Bianchini ◽  
Emile M. Gaydou
Keyword(s):  
Statistical Analysis ◽  
Essential Oils ◽  
Multivariate Statistical Analysis ◽  
Melaleuca Quinquenervia ◽  
Multivariate Statistical

scholarly journals Chemotaxonomic Significance of the Balkan Achillea Volatiles

2007 ◽  
Vol 2 (4) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Niko Radulovic ◽  
Bojan Zlatković ◽  
Radosav Palic ◽  
Gordana Stojanovic
Keyword(s):  
Statistical Analysis ◽  
Essential Oils ◽  
Multivariate Statistical Analysis ◽  
Present Review ◽  
Multivariate Statistical

The present review describes and discusses the chemistry and chemotaxonomic implications, as well as hypothetical biogenetic considerations, of the essential oils isolated from 23 taxa of Balkan Achillea using multivariate statistical analysis.

scholarly journals Morphological and chemical evidence of Teucrium x rohlenae K.Malý (Lamiaceae), a new hybrid in Croatia

2020 ◽  
Vol 80 (1) ◽  
Author(s):  
Miloš Zbiljić ◽  
Branislava Lakušić ◽  
Mirjana Marčetić ◽  
Sandro Bogdanović ◽  
Dmitar Lakušić
Keyword(s):  
Statistical Analysis ◽  
Essential Oils ◽  
Multivariate Statistical Analysis ◽  
Parental Species ◽  
Morphological Characteristics ◽  
Putative Hybrid ◽  
Natural Hybrid ◽  
Multivariate Statistical ◽  
Anatomical Analysis ◽  
Chemical Evidence

Several natural hybrids between Teucrium montanum L. and T. polium L. have been described in certain parts of the area where this two species are in sympatry. A new population with intermediate individuals that share morphological characteristics of both T. montanum and T. polium is found in Croatia (Bisko near Trilj), and most likely represent a hybridogenous taxon. The aim of this study is to compare morpho-anatomical and phytochemical characteristics of two parental species and their putative hybrid, as well as to determine the most important distinguishing characters between these three groups. In order to describe the variability and significance of morpho-anatomical and phytochemical differentiation of analysed groups several multivariate statistical analysis were conducted (PCA, CDA, DFA, UPGMA-clustering). All analyses confirm the separation of two species, T. polium and T. montanum, and reveal intermediate position of their putative hybrid. In this way, data of morphological and anatomical analysis together with data of the composition of the essential oils support the assumption of the hybridogenous origin of intermediate individuals. Based on descriptions and original indication of parental species of previously described hybrids T. x castrense Verg., T. x bogoutdinovae Melinkov and T. x rohlenae K.Malý, we found that intermediate specimens collected in Croatia perfectly match with T. x rohlenae, a hybridogenous taxon discovered by Rohlena in the vicinity of Kotor in Montenegro, and thus prove a presence of a new natural hybrid in the flora of Croatia.

Multivariate statistical analysis of elements content in snow cover in Blagoveshchensk

2018 ◽  
Vol 52 (2) ◽  
pp. 15
Author(s):  
V. I. Radomskaya ◽  
D. V. Yusupov ◽  
L. М. Pavlova ◽  
А. G. Sеrgееvа ◽  
N. А. Bоrоdinа ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Snow Cover ◽  
Multivariate Statistical Analysis ◽  
Multivariate Statistical

Multivariate Statistical Analysis Regarding the Formulation of Oxicam-Based Pharmaceutical Hydrogels

2017 ◽  
Vol 68 (4) ◽  
pp. 726-731
Author(s):  
Lenuta Maria Suta ◽  
Anca Tudor ◽  
Colette Roxana Sandulovici ◽  
Lavinia Stelea ◽  
Daniel Hadaruga ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Multivariate Statistical Analysis ◽  
Pharmaceutical Formulations ◽  
Analysis Data ◽  
Multivariate Statistical ◽  
Predictive Variables ◽  
Rapid Release ◽  
Computational Data ◽  
Experimental Protocols ◽  
Formulation Factors

In this paper, it was analysed the influence of formulation factors over obtaining oxicam hydrogels, using the statistical analysis. Data analysis and predictive modeling by multivariate regression offers a large number of possible explanatory/predictive variables. Therefore, variable selection and dimension reduction is a major task for multivariate statistical analysis, especially for multivariate regressions. The statistical analysis and computational data processing of responses obtained from different pharmaceutical formulations, via different experimental protocols, lead to the optimization of the formulation process. It was found that the most suitable pharmaceutical formulations based on oxicams with the possibility of rapid release contained cyclodextrin, in particular 2-hydroxypropyl-b-cyclodextrin.

Sign in / Sign up

Export Citation Format

Share Document