In the present study, we evaluated the antibacterial activity in the leaf extracts of Mentha piperita L. against pathogenic bacteria like Bacillus subtilis, Pseudomonas aureus, Pseudomonas aerogenosa, Serratia marcesens and Streptococcus aureus. The aqueous as well as organic extracts of the leaves were found to posses strong antibacterial activity against a range of pathogenic bacteria as reve...

Patients with chronic dental infection are usually treated with antibiotics. However, the value of antibiotics was decreasing because increased resistance in bacteria. The objective of this study is to evaluate the efficacy of herbal crude extract of Mentha arvensis in human Cariogenic pathogens. In this study we obtained crud extract of Mentha arvensis in different solvent 50% and 10% methanol...

The biogenesis of rosmarinic acid (alpha-O-caffeoyl-3,4-dihydroxyphenyl-lactic acid), the second most common ester of caffeic acid in the plant kingdom, was studied in Mentha arvense and Mentha piperita. Administration of (14)C-labelled compounds showed that, whereas the caffeoyl moiety was formed from phenylalanine via cinnamic acid and p-coumaric acid, the 3,4-dihydroxyphenyl-lactic acid moie...

This study reports, for the first time, chemical composition and biological activity of essential oil from Brazilian Cymbopogon densiflorus flowers. Thirty compounds were identified by gas chromatography coupled with mass spectrometry (GC/MS), corresponding to 95 % total an chromatogram obtained chromatography-flame ionization detection (GC-FID ). The was mainly composed cis-p-mentha-1(7),8-die...

AIM To compare the antibacterial effect of hydro alcoholic extract of Salvia officinalis, Pimpinella anisum, Satureja hortensis, Rhus coriaria, Carum copticum, Mentha longifolia, Achillea millefolium against Streptococcus mutans, Lactobacillus rhamnosus and Actinomyces viscosus through two in vitro methods. METHODS In this experimental study, hydro-alcoholic extracts have been prepared from t...

A field trial was conducted at the research farm of RRL, Jorhat during 1995 and 1996 to study the performance of Mentha Piperita under varying dates of planting and row spacings, maximum herbage and oil yield were obtained from January plants crops. Yield deceased when planting was delayed planting at a closer row spacing of 45 cm recorded the maximum herbage yield of 61'92 q/a while the yield ...

This experiment was aimed to evaluate and compare the effects of adding natural extracts (clove, Mentha thyme) with synthetic BHT on some physiochemical, microbial, sensory characteristics lamb patties stored at 4 Cº for 12 days. Results indicated that there’s a steady rise (P<0.01) in oxidative rancidity, microbial pH increasing time storage. Also, significant reduction TBA, observed treate...

Essential oils obtained from plants have recently gained a great scientific interest as a potent source of antimicrobials of natural origin. The present study highlights the antifungal activity of essential oils against Aspergillus flavus and Aspergillus niger. During screening of essential oils of six selected Angiospermic plants at 2000 ppm (mg/l) against the test fungus, Mentha arvensis and ...

Health hazards caused by heavy metals have become a great concern to the population. Excessive industrial effluents, pesticide application and biomedical activities load a large amount of metals and metalloids to the environment. Cadmium is one of these, with high rate of bioaccumulation and extreme toxicity at low concentration. Cadmium is exposed to air and water through a number of industria...

Essential oil, ethanolic extract and decoction of 10 plant species from interior Portugal were analyzed for their activity towards acetylcholinesterase (AChE) enzyme and their antioxidant activity. Of these, Melissa officinalis, Paronychia argentea, Sanguisorba minor, Hypericum undulatum and Malva silvestris are used in herbal medicine, Laurus nobilis and Mentha suaveolens as condiments, and Sa...