Objective: Antioxidant activities of the plants were significantly affected by their drying methods. In current study, total phenolic contents and antioxidant activity aqueous extracts peppermint (Mentha piperita L.) dried two different methods, air-dried (AD) freeze-dried (FD) measured. The aim was to determine if there any changes in according method. Material Method: order compounds capacity...

Essential oils of aniseed, cinnamon leaf, red thyme, tea tree, peppermint, nutmeg, rosemary, and pine were tested in vitro against lice, Pediculus humanus. All the oils except for rosemary and pine were found to be effective in the laboratory when applied in an alcoholic solution and followed by a rinse the following morning in an essential oil/vinegar/water mixture. Peppermint and nutmeg were ...

The insecticidal effects of 20 essential oils derived from herbs, were tested against the housefly species Musca domestica L. using a susceptibility test. Each was applied in ethyl alcohol at concentrations of 1, 5 and 10% (v/v). Ten percent concentrations of Cymbopogon citratus (lemongrass), Mentha piperita (peppermint) and Lavandula angustifolia (lavender) oils were the most effective, showin...

A hyaline sterile fungus forming epiphyllous mycelial nets was isolated from meristem cultures of Mentha piperita. Histological studies indicated that the culture isolate is able to colonize stems and leaves with no damage to the host plant. In vitro-grown peppermint plants displayed enhanced vegetative growth when infected by the fungus, with mycelium extending from green tissues to growing ro...

In 1994, its second full production year, field-grown meristemmed 'Black Mitchum' peppermint performed differently than in 1993, when compared with a non-meristemmed treatment in a field trial at the OSU-COARC. The difference between years may be partly attributed to better meeting the fertility and soil moisture needs of meristemmed plants in 1994. Plants were not moisture-stressed near harves...

The essential oils of peppermint (Mentha x piperita) and spearmint (Mentha spicata) are distinguished by the oxygenation position on the p-menthane ring of the constitutive monoterpenes that is conferred by two regiospecific cytochrome P450 limonene-3and limonene-6-hydroxylases. Following hydroxylation of limonene, an apparently similar dehydrogenase oxidizes (2)-trans-isopiperitenol to (2)-iso...

introduction: endoscopic examination of gastrointestinal (gi) system is a diagnostic and therapeutic instrument in children. endoscopy usually encounters some difficulties because of intensive and spastic response of gi muscles during endoscopic examination. so this study aimed to assess the effect of peppermint essence on satisfaction of patient and therapeutic team during endoscopic examinati...

(2)-Menthone is the predominant monoterpene produced in the essential oil of maturing peppermint (Mentha x piperita) leaves during the filling of epidermal oil glands. This early biosynthetic process is followed by a second, later oil maturation program (approximately coincident with flower initiation) in which the C3-carbonyl of menthone is reduced to yield (2)-(3R)-menthol and (1)-(3S)-neomen...