Distillation waste water can modify peppermint (Mentha ×piperita L.) oil composition |
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| Authors: | Valtcho D Zheljazkov Tess Astatkie |
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| Institution: | a University of Wyoming, Sheridan Research and Extension Center, 663 Wyarno Road, Sheridan, WY 82801, USA
b Department of Engineering, Nova Scotia Agricultural College, 50 Pictou Road, P.O. Box 550, Truro NS B2N 5E3, Canada |
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| Abstract: | We evaluated the effects of foliar sprays made of residual distillation waters from 13 species containing essential oil (Melissa officinalis, Mentha arvensis, M. gracilis, M. ×piperita, M. spicata, Monarda citriodora, Nepeta mussinii, Porophyllum ruderale, Rosmarinus officinalis, Salvia officinalis, Satureja montana, Tagetes lucida, and Thymus vulgaris), hot water extracts from two alkaloid-containing species (Glaucium flavum, Datura innoxia), and three plant hormones (methyl jasmonate, gibberellic acid, and salicylic acid) on growth, productivity, and essential oil content and composition (α-pinene, β-pinene, sabinene, myrcene, l-limonene, 1,8-cineole, l-menthone, menthofuran, d-isomenthone, menthyl acetate, neo-menthol, b-caryophyllene, l-menthol, pulegone, germacrene-d, and piperitone) of peppermint (Mentha ×piperita L.) ‘Black Mitcham’. The results showed significant effects of the treatments on plant height and weight, essential oil content and yield, and essential oil composition. Cluster analysis indicated similarities between the effects of plant hormones and some extracts on peppermint oil composition. None of the distillation waters had strong in vitro antimicrobial activity. The results indicated that residual distillation water of some plant species may influence monoterpene synthesis and accumulation in peppermint and hence may be used for targeted modification of peppermint essential oil composition. |
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| Keywords: | Alkaloid-containing species Aromatic crops Black Mitcham Essential oil Plant hormones |
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