scholarly journals Spearmint Oil

2020 ◽  
Author(s):  
Keyword(s):  
Spearmint Oil

scholarly journals Essential oils as tick repellents on clothing

2019 ◽  
Vol 79 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Oliver Soutar ◽  
Freya Cohen ◽  
Richard Wall
Keyword(s):  
Essential Oils ◽  
No Reduction ◽  
Positive Control ◽  
Negative Control ◽  
Tick Abundance ◽  
Spearmint Oil ◽  
Oregano Oil ◽  
Negative Controls ◽  
Tick Repellents

Abstract Essential oils show promise as natural alternatives to synthetic tick repellents, but few studies have investigated their repellent efficacy in vivo or under field conditions. Here, blanket-drags and standardised walks were employed to evaluate tick acquisition by 1 m2 cotton blankets or cotton trousers, respectively, in woodland edge habitats of known high tick abundance. Blankets and trousers had been treated with one of 5% oregano, rosemary, spearmint or thyme oils, 20% DEET (N,N-diethyl-3-methylbenzamide) (positive control) or ethanol excipient-only (negative control). The number of ticks present on the blankets or trousers differed significantly between treatments: spearmint oil treatments resulted in significantly fewer ticks than the negative controls for both blankets and trousers and significantly fewer ticks were present on the oregano oil treated blankets. For ticks that did attach to the trousers, the rate of drop off within 3 min was significantly higher for trousers treated with spearmint oil or thyme oil than ethanol, oregano oil and rosemary oil. No reduction in repellence was detected over a 24 h period between treatment and testing. The results suggest that 5% oregano and spearmint oils exhibit potential as natural clothing repellents, with an effective equivalence to 20% DEET.

Synthesis of (R)-(–)-Carvone Derivatives

2010 ◽  
Vol 65 (11) ◽  
pp. 1381-1383 ◽  
Author(s):  
Damião P. de Sousa ◽  
Ellen Raphael ◽  
Timothy J. Brocksom
Keyword(s):  
Analgesic Activity ◽  
Present Report ◽  
Pharmaceutical Preparations ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Main Constituent ◽  
Structure Activity ◽  
Novel Drugs ◽  
Spearmint Oil ◽  
Pharmacological Potential

(R)-(-)-Carvone, the main constituent of spearmint oil, has several synthetic applications and is used in cosmetics, food, and pharmaceutical preparations. In a recent study we demonstrated that (R)-(-)-carvone shows significant analgesic activity. In the present report, (R)-(-)-carvone derivatives which have pharmacological potential are described. These compounds can be used in studies of structure-activity relationship to develop novel drugs.

scholarly journals Oil and Powder of Spearmint as an Alternative to Sitophilus Oryzae Chemical Control of Wheat Grains

2011 ◽  
Vol 51 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Aly Derbalah ◽  
Sahar Ahmed
Keyword(s):  
Chemical Control ◽  
Sitophilus Oryzae ◽  
Adult Mortality ◽  
Control Treatment ◽  
Chemical Components ◽  
Resistance Development ◽  
Wheat Grains ◽  
Whole Wheat ◽  
Stored Product Pests ◽  
Spearmint Oil

Oil and Powder of Spearmint as an Alternative toSitophilus OryzaeChemical Control of Wheat GrainsStored product pests such asSitophilus Oryzaeare a major concern. Alternative and safe control methods for such pests are needed. Therefore, powder and essential oil of Mentha viridis plant were tested under laboratory conditions for their ability to protect wheat grains against the insectS. oryzae. The insect was reared and tested on whole wheat grains. The emergence and adult mortality of the insectS. oryzaewere tested. The efficacy of these plant products was evaluated and compared with malathion. The standard compound for controllingS. oryzaehas been malathion. The effect of botanical products and malathion on the germination of wheat grains was also evaluated. The chemical components of spearmint oil were also identified using GC-MS analysis. The results showed that, the oil and powder ofM. viridiswere effective againstS. oryzaewith the respect to adults mortality. Also, the oil and powdered products ofM. viridissignificantly reduced the emergence ofS. oryzaecompared to the control treatment. Spearmint oil and powder do not significantly affect wheat grains germination relative to the control treatment. The efficacy of spearmint against the tested insect was due to the presence of a mixture of bioactive compounds. The results suggested that, spearmint oil and powder are promising as alternatives to chemical control used againstS. oryzaein wheat grains. Also, these spearmint products submit a solution of resistance development by insect due to the presence of a lot of bioactive components rather than the single insecticide.

Diurnal effects on spearmint oil yields and composition

2015 ◽  
Vol 182 ◽  
pp. 73-76 ◽  
Author(s):  
Jennifer Bufalo ◽  
Valtcho D. Zheljazkov ◽  
Charles L. Cantrell ◽  
Tess Astatkie ◽  
Lyn Ciampa ◽  
...  
Keyword(s):  
Spearmint Oil

Acidic Components in Scotch Spearmint Oil (Mentha gracilisSole)

1998 ◽  
Vol 10 (5) ◽  
pp. 507-516 ◽  
Author(s):  
Tomoyuki Tsuneya ◽  
Masakazu Ishihara ◽  
Hiroaki Takatori ◽  
Fumio Yoshida ◽  
Keiichi Yamagishi ◽  
...  
Keyword(s):  
Spearmint Oil ◽  
Acidic Components

scholarly journals Drying and Shade Effects on Spearmint Oil Yields and Composition

HortScience ◽  
2014 ◽  
Vol 49 (3) ◽  
pp. 306-310 ◽  
Author(s):  
Valtcho D. Zheljazkov ◽  
Tess Astatkie ◽  
Ekaterina Jeliazkova
Keyword(s):  
Essential Oil ◽  
The United States ◽  
Oil Field ◽  
Energy Costs ◽  
Drying Method ◽  
Mentha Spicata ◽  
North Central ◽  
Germacrene D ◽  
Spearmint Oil ◽  
Drying Conditions

‘Native’ spearmint (Mentha spicata L.) is one of the two most widely grown spearmints in the United States and in other countries. Recent studies demonstrated the feasibility of growing ‘Native’ spearmint as a cash crop for north–central Wyoming. Transportation and energy costs of commercial mint production can be reduced by drying the spearmint in windrows in the field for a few days after harvest and before oil extraction. This method of drying mint has been a common practice in the traditional mint production regions of the world. However, there is a knowledge gap regarding the effect of this drying method on the yield and composition of ‘Native’ spearmint oil. Field and laboratory experiments were conducted in Wyoming to evaluate the effects of drying duration in days after harvest (DAH: 0, 1, 2, 3, 4, 7, or 11) and drying conditions (shade and sun) on the yield of essential oil (EO) and on the concentrations of different oil constituents (beta-pinene, myrcene, limonene, eucalyptol, cis-sabinene hydrate, 4-terpineol, cis-dihydro carvone, cis-carveol, carvone, iso-dihydro carveol acetate, beta-bourbonene, beta-caryophyllene, alpha-humulene/transbeta-farnesene, and germacrene D). Neither drying duration nor drying condition had a significant effect on oil yield. The average yield of essential oil was 0.25 g of oil per 100 g of fresh weight. Drying duration and drying conditions had a significant effect on the composition of EOs. The concentrations of myrcene and germacrene-D were higher in the EOs from plants dried under shade (3.2% and 2.4%, respectively) than the EOs from plants dried under direct sun (3% and 2.2%, respectively). The concentration of beta-pinene was higher in plants dried under direct sun than under shade (0.92% vs. 0.88%). Carvone ranged from 51% to 53% in the oil and was higher in EOs from plants dried for 1 and 2 DAH and lower in EOs from plants dried for 7 days. Drying of ‘Native’ spearmint under direct sun in Wyoming for up to 11 DAH can be used as an effective tool to reduce transportation and energy costs without affecting oil yields.

MODELING OF SPEARMINT OIL EXTRACTION IN A PACKED BED USING SC-CO2

2013 ◽  
Vol 201 (3) ◽  
pp. 300-322 ◽  
Author(s):  
F. Esmaeilzadeh ◽  
R. Lashkarboluki ◽  
M. Lashkarbolooki ◽  
Ali Zeinolabedini Hezave
Keyword(s):  
Packed Bed ◽  
Oil Extraction ◽  
Spearmint Oil
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