Garden mint

Fig. 22.6. Electron micrographs of garden mint untreated after HD extraction and after SFME extraction.

Essential oils contain a variety of compounds divided into two main groups hydrocarbons and oxygenated compounds. For garden mint, the essential oil is mainly carvone (oxygenated monoterpene) and limonene (monoterpene hydrocarbon). How does the microwave energy effect differ for these two different aroma compounds It would be reasonable to believe that the more polar the compound the more readily the microwave irradiation is absorbed, because of the better interaction between the electromagnetic wave and compound, so the oil obtained contains more of the more polar aromatic components. This would seem to correspond well to the observed behavior of carvone (polar compound) and limonene (non polar compound) (Table 22.5). 

Synonyms cas 8008-79-5 oil of spearmint common spearmint scotch spearmint garden mint green... 

The first applications of MAE dealt with the extraction of essential oils from plant products was reported in 1994 [45]. Microwave heating was used for the isolation of essential oils. Solvent free microwave extraction (SEME) involves microwave heating involves dry distillation at atmospheric pressure for the isolation of the essential oils in fresh plant materials. SFME was used to obtain essential oils from different spices such as ajowan, cumin, and star anise [46,47], and three different aromatic herbs (basil, garden mint, and thyme) [47]. Using the SFME method, either solvent or water is needed if fresh plant material is used. However, in case of dry plant material, the sample should be rehydrated by soaking in water before the extraction. 

Garden or culinary mint, which represents a wide spectrum of species, varieties and cullivars including M. viridis (garden mint), M. rotundifolia (applemint), M. gentilis (American applemint), and M. spicata var. cris-pata (curley mint). 

Grand style This large, formal herb garden features geometric beds immaculately edged with boxwood. The bed in the foreground is filled with different types of mint. 

Herbs that like damp soil will grow well in a naturally boggy area, or you can create one by the edge of a pond. Try meadowsweet Filipendula), water mint, valerian, and hemp agrimony Eupatorium cannabinum). In dry summers you will need to keep the water levels in the pond or bog garden topped off. Note that some of these species can become invasive once they are established in the garden. 

Some species in the mint family are economically important and are grown as herbs used to flavor foods and beverages or for the production of essential oils that are used as fragrances in perfumery. Some species are also grown as showy or fragrant ornamentals in gardens. 

Many species in the mint family are native to natural plant communities of North America. Many additional species have been introduced from Eurasia and elsewhere, especially species that are grown in agriculture or horticulture, and some of these have escaped from gardens and become naturalized in appropriate habitats in North America. 

Many people cultivate their own herb gardens of various species in the mint family that are used as flavorings. This is done to ensure a continuous and fresh supply of these flavorful herbs for use in aromatic, epicurean cooking. Recently, people have also began to grow these plants indoors under artificial sources of light so that they will continue to have access to fresh edible mints during the winter. 

Example from Key of Solomon. Sprinkler of Vervain, Fennel, Lavender, Sage, Valerian, Mint, Garden... 

Peppermint. Brandy mint lamb mint. Dried leaves and flowering tops of Mentha piperita L., Labiatae. Habit. Asia, Europe, North America cultivated in gardens. Cotiuit, Volatile oil, tannin, resin, gum. 

The most recent group of botanical products that have seen some commercial success as insecticides are the plant essential oils. Though some of these have traditional uses dating back decades, if not longer, commercialization has only taken place in the past 7-8 years. Plants producing essential oils that have been exploited for insect control include a number of herbs, most notably from the mint family (Lamiaceae), such as garden thyme Thymus vulgaris L.), rosemary Rosmarinus officinalis), and various species of mint Mentha spp.). ... 

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