LITSEA GLAUCESCENS PDF

Litsea glaucescens Kunth is a native plant from Central America and Mexico, mainly distributed in the states of Chiapas Nayarit and Veracruz. Thirty-one compounds are identified in the essential oil of Mexican bay (Litsea glaucescens scens), which is dominated by ± % 1,8-cineole, . Thirty-one compounds are identified in the essential oil of Mexican bay (Litsea glaucescens var. glaucescens), which is dominated by ± % 1.

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It is native from southern North America, mostly in Mexico. Oxygen radical absorbance capacity assay was carried out using a modified method described by Ou et al. On the other hand, the lowest regression coefficient was obtained for the correlation between the data of the ORAC test versus CPC; however the value is still into an acceptable range. This study shows the seasonal effect on the antioxidant, antiproliferative, and antimicrobial activities of L.

As can be observed, the evident difference among them is the height of the chromatographic peaks related to the concentration of the phenolics. In addition, these facts determine also the redox potential and therefore the antioxidant activity of phenolic compounds [ 48 ].

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Although all the extracts inhibited the proliferation of human and murine cells lines, their effect was moderate.

Tropicos | Name – !Litsea glaucescens Kunth

To identify the main phenolic compounds of the extracts of L. The bark is brown, thick trunk. On the other hand, the antibacterial activity of L.

View at Google Scholar V. Although the evaluated samples have other phenolic constituents not identified in this work, it is possible that epicatechin and quercitrin could play an important role in the high antioxidant activity of ALGE and SULGE, since different studies have demonstrated that both phenolics are considered among the most antioxidant phenolic compounds [ 4546 ] and that capacity has been attributed to the catechol and chromane moieties that they have Figure 4.

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In this regard, Borges et al. View at Google Scholar D. F6the four extracts had a similar antiproliferative effect. These activities are mainly related to the presence of different lotsea such litsra terpenes and phenolic compounds [ 2223 ].

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For example, in a study performed by Herrera-Carrera et al. IC 50 values were calculated using nonlinear regression analysis in Microsoft Excel software. The results reported in this work are an evidence of the antiproliferative effect of L. Bars with different superscript indicate statistical differences ALGE: Phenolic Compounds The phenolic content of the Glaucescns. Phenolic content of L.

For littsea, in a study performed by Ali-Ahmmad et al. On the other hand, antimicrobial resistance is the result of antibiotic misuse, which conduces to stronger infections with complicated clinical treatments like respiratory tract infections, rhinosinusitis, otitis media, cystic fibrosis lung infection, dental caries, and chronic wounds, among others [ 56 ]. This article includes a list of referencesbut its sources remain unclear because it has insufficient inline citations. Male flowers yellowish-white, 3.

Different assays are available and have been used to evaluate the antioxidant activity of plant extracts. Oxidative stress has been explained in terms of the overproduction of intracellular glaucescdns oxygen species, which may produce damage to biomolecules such as DNA, RNA, lipids, and proteins [ 3 ]. Nowadays, diseases related to oxidative stress and to antimicrobial resistance are considered the main public health concern, leading to the highest mortality rates worldwide [ 12 ].

In contrast, no antimicrobial activity of any of the four extracts was observed against E. Hardiness Hardy to short frosts. By using this site, glaudescens agree to the Terms of Use and Privacy Policy. IC 50 values were calculated throughout linear regression analysis using Microsoft Excel software.

The corresponding values are shown in Table 2 ; and as can be observed there are significant differences among them. These complications reduce the glaucescenss antibiotics efficacy and length of the hospitalization stays and increase the medical treatment costs associated with the research and application of broad spectrum antibiotics [ 7 ].

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From the results reported here, glaucescenz antioxidant activity was glaucewcens strongest one and clearly dependent on the season. Nevertheless, the structural features of these phenolics are important too such as those described above as enhancer of the antioxidant activity of the L.

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Thanks are due to Q. The phenolic litwea of the L. In other projects Wikimedia Commons. Significance level in Type I error was. Leaves are leathery and elongated in shape, growing up to 3″.

Litsea glaucescens – Wikipedia

They are distinct in having a blue-green coloration to their undersides. Cell proliferation was evaluated through the MTT assay [ 28 ] modified by Hernandez et al. Control bacterial cultures were incubated with DMSO 0. Views Read Edit View history.

Articles lacking in-text citations from February All articles lacking in-text citations Articles with ‘species’ microformats Wikipedia articles needing clarification from February All articles with unsourced statements Articles with unsourced statements from February Growth-inhibitory activity of L. Introduction Nowadays, diseases related to oxidative stress and to antimicrobial resistance are considered the main public health concern, leading to the highest mortality rates worldwide [ 12 ].

These results agree with previous studies related to plants from Litsea genus such as Litsea glutinosa, Litsea floribundaand Litsea japonica, where IC 50 values ranged from 9.

As we hypothesized, it seems that phenolic compounds were the main compounds responsible for the antioxidant activity of the four L. Results obtained through the DPPH method showed variations among the seasonal extracts.