10 11 ABSTRACT 12 13 The aim of this research was to exploit natural products chemistry to control the incidence and extent 14 of mould growth in housing hence improving the sustainability of building products. 15 16 In this study, 7 extracts of the essential oils were screened in a nutrient medium for their antimould 17 activity against 3 common moulds, viz C. herbarum, Penicillium sp. and Alt...

OBJECTIVE To determine the effect of a mixture of plant extracts on the adherence and retention of bacteria in dental biofilm. STUDY DESIGN Experimental study. PLACE AND DURATION OF STUDY Department of Oral Biology, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia, from December 2009 to December 2011. METHODOLOGY For determination of adhering ability, experimental pellic...

In this study, novel near-infrared and attenuated total reflectance mid-infrared spectroscopic methods coupled with multivariate data analysis were established enabling the determination of thymol, rosmarinic acid, and the antioxidant capacity of Thymi herba. A new high-performance liquid chromatography method and UV-Vis spectroscopy were applied as reference methods. Partial least squares regr...

The present study measured changes in antioxidant enzyme activity in, and the phospholipid fatty acid composition of the ageing rat brain and tested whether dietary supplementation with thyme oil or thymol could provide beneficial effects. There were significant declines in superoxide dismutase (EC 1.15.1.1) and glutathione peroxidase (EC 1.11.1.9) activities and the total antioxidant status in...

Thymol is present in the essential oils from herbs and spices, such as thyme. It is produced by these plant species as a chemical defense against phytopathogenic microorganisms. Therefore, this compound has attracted great attention in food industry, i.e., it has been used as a natural preservative in foods such as cheese to prevent fungal growth. Previous studies concerning the biotransformati...

A simple and sensitive spectrophotometric method was developed for the determination of trace amounts of sulfur dioxide. The method is based on the reaction of SO2 with a known excess of ICI as the oxidant. The unreacted ICI iodinates thymol blue under acidic conditions. The lambdamax of thymol blue is at 545 nm under acidic conditions, and on lodination lambdamax shifts to 430 nm. This shift r...

Thymol and carvacrol are phenolic isomers with the potential developmental toxicity endocrine disruptions (ED) at low concentrations. However, few reports estimated their ED below 10−6 M (150 μg/L) (MW of thymol carvacrol: 150 g/mol). In this study, both chemicals were determined for 500 μg/kg 50 using chicken embryonic assay, estrogenic activity (EA) 10−12 to 10−7 (1.5 × 10−4 15 by MCF-7 cell ...

Background and Aims: Hepatotoxicity induced by Co-amoxiclav has been indicated in multiple studies. Thymol is the main constituent of the Thymus vulgaris essential oil that has antioxidant properties. Even though thymol can exhibit antioxidant activity in vivo models, there is a lack of evidence about the thymol’s effectiveness in drug-induced liver injury. Thus, the present study was conducted...