Alkaloids from callus cultures of Holarrhena floribunda

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Characteristics of the home bacterial contamination and endotoxin related release.

In several occupational settings, endotoxin, a characteristic external fraction from the outer membrane of Gram negative bacteria (GNB), is an important component of the environmental endotoxin exposure may have a dual influence on atopy and asthma. The aim of this study was to characterise the bacterial and endotoxin composition of settled and airborne dusts from domestic environments. In the nine studied homes, 52 species of GNB were identified on settled dusts and only 13 in the airborne dust. Bacterial levels ranged from 2.76 10(5) to 1.14 10(8) CFU/g in mattresses and from 7.82 10(5) to 6.38 10(7) CFU/g in carpets. In the air 0.39 10(3) to 4.66 10(3) cfu/m3were recorded. Endotoxin varied from 1.85 to 549.0 EU/mg dust and was higher in the carpets compared with the mattresses. The medians of airborne endotoxin levels were 0.239 EU/m3 and 0.062 EU/m3 in inhalable and respirable particles, respectively. Our investigation demonstrates clearly the presence of numerous GNB in domestic environments and shows that domestic environnements contain in some cases relative high amounts of endotoxin.Journal ArticleResearch Support, Non-U.S. Gov'tSCOPUS: ar.jinfo:eu-repo/semantics/publishe

Evaluation of the preservative properties of Thymus vulgaris essential oil in topically applied formulations under a challenge test

The preservative properties of thyme essential oil (3%) with a known composition were evaluated in two types of final formulations, suitable for use as pharmaceutical or cosmetic vehicles, by means of a standard challenge test proposed by the latest European Pharmacopoeia. The required preservation efficacy criteria were satisfied against the bacterial strains, against the yeast in one of the formulations, but not against the mould strain involved in this study. Interactions between the essential oil compounds and other factors present in the final formulation might have influenced the activity of this essential oil, leading to an incomplete satisfaction of the criteria.Journal ArticleResearch Support, Non-U.S. Gov'tSCOPUS: ar.jFLWINinfo:eu-repo/semantics/publishe

Bacterial contamination of indoor air, surfaces, and settled dust, and related dust endotoxin concentrations in healthy office buildings

SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Induction de racines transformées par Agrobacterium rhizogenes chez Ailanthusvilmoriniana, Datura stramonium et Holarrhena floribunda

info:eu-repo/semantics/publishe

Approaches for the improvement of secondary metabolites biosynthesis by in vitro plant cell cultures

info:eu-repo/semantics/publishe