A quantitative validated method using liquid chromatography and chemometric analysis for evaluation of raw material oF Maytenus ilicifolia (Schrad.) Planch., Celastraceae

Beltrame, Flávio Luís; Mainardes, Rubiana Mara; Khalil, Najeh Maissar; Prestes, Rosilene Aparecida; Nogueira, Alessandro; Demiate, Ivo Mottin; Cass, Quézia B.

doi:10.1590/s0100-40422012000200018

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…The chromatographic data pretreatment has included alignment using correlation optimized warping (COW) [31] (available at www.models.life.ku.dk/dtw_cow), normalization and mean center. Next, the unsupervised classification by principal component analysis (PCA) was applied for assessing the similarities and differences between these chromatographic profiles, because it reduces the dimensionality of original data matrix and permits the visualization of clusters within large sets of samples [23,27,32,33]. Then, the result of the initial PCA was confirmed by partial least squares discriminant analysis (PLS-DA) that is a supervised chemometric method, which builds a regression model for maximum separation between predefined classes [34].…”

Section: Discussionmentioning

confidence: 99%

Chemotaxonomic study ofChrysobalanus icacoLinnaeus (Chrysobalanaceae) using ultra-high performance liquid chromatography coupled with diode array detection fingerprint in combination with multivariate analysis

et al. 2017

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We investigated a strategy for the chemotaxonomy study of Chrysobalanus icaco Linnaeus (Chrysobalanaceae) based on ultra-high performance liquid chromatography coupled with diode array detection fingerprint in combination with multivariate analysis. Two models using principal component analysis and partial least squares discriminant analysis were developed, and the samples could be successfully classified into two classes: Class 1 (red morphotype) and Class 2 (white and black morphotypes). Furthermore, ultra-high performance liquid chromatography coupled with diode array and electrospray ionization tandem mass spectrometry was used to identify the main compounds responsible for class separation. The partial least squares discriminant analysis model accurately classified the C. icaco samples using an external validation subset with prediction ability of 100% and revealed the existence of two chemotypes. The most important finding obtained in this study is that the three morphotypes distinguished by the mature fruit color (white, red, and black) are not all phytoequivalent to each other.

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Section: Discussionmentioning

confidence: 99%

Chemotaxonomic study ofChrysobalanus icacoLinnaeus (Chrysobalanaceae) using ultra-high performance liquid chromatography coupled with diode array detection fingerprint in combination with multivariate analysis

et al. 2017

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“…The other tannins of the group showed no changes in response to treatments, this condition may be another effect of the plasticity of the species previously discussed. When analyzing the presence of the compound epicatechin in 12 samples of Maytenus ilicifolia harvested in different regions of the state of Paraná, Beltrame et al (2012) found a wide variation in the content of the compound, from 250 µg mL -1 to traits identified in some samples being evaluated. These observed variations may be originated from the genetic variation of the sampled plants.…”

Section: (Preliminary)mentioning

confidence: 99%

Effect of cover on the development and production of secondary compounds of <i>Maytenus ilicifolia</i> and <i>Ilex paraguariensis</i> in agroforestry systems

Borges

Boff²,

Mantovani³

et al. 2019

Ciênc. Florest.

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Effect of cover on the development and production of secondary compounds of Maytenus ilicifolia and Ilex paraguariensis in agroforestry systemsEfeito da cobertura do dossel no desenvolvimento e produção de compostos secundários de Maytenus ilicifolia e Ilex paraguariensis em sistemas agroflorestais AbstractThe Midwest regions of Santa Catarina state, in Brazil, include a great diversity of forest essences with medicinal application; however, many of these resources are poorly exploited or managed in an extractive manner. This research aimed to assess the effects of canopy cover in agroforestry systems on development and production of secondary composites of espinheira-santa (Maytenus ilicifolia) and yerba mate (Ilex paraguariensis). Two experimental areas were planted following the same spacing and arrangement for the plants. Experimental blocks were set up by pruning the pioneer plants, with three variable levels of canopy cover (0-20 %, 20-40 % and 40-60 %). Plants of espinheira-santa and yerba mate were monitored for development and their marketable vegetative parts were harvested, processed and aqueous extracts were prepared for the analysis of presence of secondary compounds. The yerba mate showed the highest production of marketable biomass under high cover. By contrast, the biosynthesis of the secondary compound, theobromine, was greater in the lowest cover, while chlorogenic acid and caffeine were higher in the cover (40-60 %). Espinheira-santa showed no difference in either development or yield among the assessment treatments and, the production of phenols was lower in the cover above 40 %.

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“…Métodos de avaliação por cromatografi a líquida são um exemplo efi caz de identifi cação e quantifi cação de epicatequina em extratos brutos de M. ilicifolia que pode ser usado como controle de qualidade de fi toterápicos por laboratórios farmacêuticos (BELTRAME et al, 2012).…”

Section: Methodsunclassified

XVI Jornada Acadêmica, 1º Encontro Anual de Iniciação Cientifica da UNINGÁ

Pelloso¹,

Romani²

2021

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A quantitative validated method using liquid chromatography and chemometric analysis for evaluation of raw material oF Maytenus ilicifolia (Schrad.) Planch., Celastraceae

Cited by 7 publications

References 18 publications

Chemotaxonomic study ofChrysobalanus icacoLinnaeus (Chrysobalanaceae) using ultra-high performance liquid chromatography coupled with diode array detection fingerprint in combination with multivariate analysis

Chemotaxonomic study ofChrysobalanus icacoLinnaeus (Chrysobalanaceae) using ultra-high performance liquid chromatography coupled with diode array detection fingerprint in combination with multivariate analysis

Effect of cover on the development and production of secondary compounds of <i>Maytenus ilicifolia</i> and <i>Ilex paraguariensis</i> in agroforestry systems

XVI Jornada Acadêmica, 1º Encontro Anual de Iniciação Cientifica da UNINGÁ

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