The effect of plantation age on the yield of some mint (Mentha spp.) varieties

2003 ◽  
Vol 43 (6) ◽  
pp. 651 ◽  
Author(s):  
A. Ozel
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Plant Material ◽  
Oil Content ◽  
Oil Yield ◽  
Local Varieties ◽  
Leaf Yield ◽  
Plantation Age ◽  
Essential Oil Yield ◽  
Herb Yield

This study was conducted to determine the productivity of aging plantation of some mint varieties (Mentha spp.) in Sanliurfa in the south-east of Turkey. The trial was carried out between 1994 and 1998 (5 years) and was designed as a split-plot study, with 3 replications. The M. piperita L. (Mitcham), M. piperita L. (Prilubskaja) and M. spicata (Urfa Local) varieties were used as plant material. Results obtained showed that the fresh herb yield (t/ha), dry herb yield (t/ha), dry leaf yield (t/ha), essential oil yield (L/ha) and essential oil content (%) were significantly affected by the plantation age in all varieties investigated. The yields of fresh herbs, dry herbs, dry leaves and essential oils decreased dramatically in the fourth and fifth years of harvest from the plantation as only 1 harvest could be achieved during these years.

scholarly journals Çukurova Ekolojik Koşullarında Lavender (Lavandula angustifolia Mill.) de Diurnal Varyabilitenin Bazı Verim ve Kalite Özelliklerine Etkisinin Belirlenmesi

2019 ◽  
Vol 7 (3) ◽  
pp. 531 ◽  
Author(s):  
Çiğdem Sönmez ◽  
Hülya Okkaoğlu
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Block Design ◽  
Early Morning ◽  
Oil Yield ◽  
Lavandula Angustifolia ◽  
High Drug ◽  
Randomized Complete Block Design ◽  
Essential Oil Yield ◽  
Herb Yield

Lavender as called Lavandula angustifolia Mill. is used for many purposes such as pharmaceutical, cosmetics etc industry. The aim of this study is to determine the effects of different harvest hours on yield, essential oil and essential oil yield in lavender. The research was conducted a randomized complete block design with three replications under Karaisalı/Adana ecological conditions. Flowering lavender plants were harvested every two hours starting from 8 am at five different times. The fresh herb yield, dry herb yield, drug flos yield, essential oil content and essential oil yield were determined in 2014 and 2015. The highest means were obtained from harvestings at 8 in morning when lowest means were recorded at harvesting at 14 in afternoon for both drug flos and essential oil yield in similar. Based on the results from research of two years, it was concluded that it would be suitable to harvest in early morning for obtaining high drug flos and essential oil yields.

scholarly journals Ordu Ekolojik Şartlarında Farklı Nane (Mentha sp.) Türlerinin Tarımsal Özelliklerinin Belirlenmesi

2018 ◽  
Vol 6 (12) ◽  
pp. 1734
Author(s):  
Meryem Yeşil ◽  
Emel Karaca Öner ◽  
Mehmet Muharrem Özcan
Keyword(s):  
Essential Oil ◽  
Plant Height ◽  
Oil Yield ◽  
Mentha Piperita ◽  
First Year ◽  
Mentha Spicata ◽  
Fresh Leaf ◽  
Leaf Yield ◽  
Essential Oil Yield ◽  
Herb Yield

This study was carried out at Ordu University, Field of Agricultural Research and Application in 2016-2017, in order to determine the agricultural characteristics of some mint species (Mentha piperita, Menta spicata and Mentha longifolia) according to “Completely Randomized Design” with three replications. Plant height, fresh herb yield, dry herb yield, fresh leaf yield, dry leaf yield, essential oil yield and essential oil ratio were investigated. In both years of the experiment, M. spicata and M. longifolia were harvested 2 and 4 times, respectively, M. piperita 1 times in 2016 2 times in 2017 was harvested. As a result of research the difference in term of plant height between species was determined only in the first harvest in the first year. In the first year of the experiment, the total fresh herb yield, total dry herb yield, total fresh leaf yield, total dry leaf yield of Mentha piperita were 2.442.73 kg/da, 585.70 kg/da, 1.120.67 kg/da, 266.87 kg/da, respectively, while total essential oil yield was 6.40 lt /da. Also in the second year of the experiment, high values were obtained from Mentha spicata in terms of total fresh herbage yield (920.37 kg/da), total dry herb yield (247.93 kg/da), total fresh leaf yield (502.5 kg/da) and total dry leaf yield (149.93 kg/da). M. longifolia plant was ranked first in terms of total essential oil yield (3.48 lt / da and 3.19 lt / da) in terms of the total essential oil ratio due to 3.47 lt / da in the research year of 2017.

scholarly journals Variability of essential oil content of Mentha L. taxa

2012 ◽  
Vol 60 (8) ◽  
pp. 187-190
Author(s):  
Jarmila Neugebauerová ◽  
K. Kaffková
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Oil Yield ◽  
Mentha Spicata ◽  
Essential Oil Yield

Species of genusMenthaL. can be described like herbs with many possibilities to use in industry and pharmacology. The most important product is essential oil. For commercially cultivating of speciesMenthaL. is variability of essential oil content very important characteristic. Variability of essential oil yield of twelve different taxa were monitored for four years. Essential oils were obtained via hydro-distillation and expressed as ml/kg. The highest variability of essential oil content during monitored period showed samplePulegium vulgareand the lowest variability of essential oil content showedMentha spicata.

scholarly journals Essential Oils of Four Virginia Mountain Mint (Pycnanthemum virginianum) Varieties Grown in North Alabama

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1397
Author(s):  
William N. Setzer ◽  
Lam Duong ◽  
Trang Pham ◽  
Ambika Poudel ◽  
Cuong Nguyen ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
University Research ◽  
Oil Yield ◽  
Research Station ◽  
Continuous Extraction ◽  
Chromatographic Techniques ◽  
Relative Differences ◽  
Essential Oil Yield ◽  
Very High

Virginia mountain mint (Pycnanthemum virginianum) is a peppermint-flavored aromatic herb of the Lamiaceae and is mainly used for culinary, medicinal, aromatic, and ornamental purposes. North Alabama’s climate is conducive to growing mint for essential oils used in culinary, confectionery, and medicinal purposes. There is, however, a need for varieties of P. virginianum that can be adapted and easily grown for production in North Alabama. Towards this end, four field-grown varieties with three harvesting times (M1H1, M1H2, M1H3; M2H1, M2H2, M2H3; M3H1, M3H2, M3H3, M4H1, M4H2, M4H3) were evaluated for relative differences in essential oil yield and composition. Thirty-day-old greenhouse-grown plants of the four varieties were transplanted on raised beds in the field at the Alabama A & M University Research Station in North Alabama. The plots were arranged in a randomized complete block with three replications. The study’s objective was to compare the four varieties for essential oil yield and their composition at three harvest times, 135, 155, and 170 days after planting (DAP). Essential oils were obtained by hydrodistillation with continuous extraction with dichloromethane using a Likens–Nickerson apparatus and analyzed by gas chromatographic techniques. At the first harvest, the essential oil yield of the four varieties showed that M1H1 had a yield of 1.15%, higher than M2H1, M3H1, and M4H1 with 0.91, 0.76, and 1.03%, respectively. The isomenthone concentrations increased dramatically through the season in M1 (M1H1, M1H2, M1H3) by 19.93, 54.7, and 69.31%, and M3 (M3H1, M3H2, M3H3) by 1.81, 48.02, and 65.83%, respectively. However, it increased only slightly in M2 and M4. The thymol concentration decreased slightly but not significantly in all four varieties; the thymol in M2 and M4 was very high compared with M1 and M3. The study showed that mountain mint offers potential for production in North Alabama. Two varieties, M1 and M3, merit further studies to determine yield stability, essential oil yield, composition, and cultivation development practices.

scholarly journals Essential oil yield and yield components of basil (Ocimum basilicum L.) as affected by genotype and intrarow spacing at Jimma, SW Ethiopia

2018 ◽  
Vol 71 (3) ◽  
Author(s):  
Abraham Ambi Alemu ◽  
Weyessa Garedew ◽  
Aynalem Gebre
Keyword(s):  
Essential Oil ◽  
Yield Components ◽  
Oil Content ◽  
Ocimum Basilicum ◽  
Oil Yield ◽  
Plant Spacing ◽  
College Of Agriculture ◽  
Jimma University ◽  
Essential Oil Yield ◽  
Different Parts

Basil is an aromatic, medicinal, culinary, and multifunctional herb which is grown in different parts of Ethiopia. Although the oil distilled from the herb, as well as its herbal yields, are a crucial input in the pharmaceutical industry and for culinary purposes, the yield obtained is below its potential due to various challenges. Genotype and plant spacing are two of the factors which contribute to the low production of the crop. A field trial was conducted at Jimma University College of Agriculture and Veterinary Medicine (JUCAVM) in 2016 and 2017 to assess the effect of genotype and plant spacing on essential oil yield and other yield-related traits of this important herb. Four promising genotypes (BO-1, BO-3, BO-4, and BO-5) and three plant spacings (20, 30, and 40 cm) were studied in a 4 × 3 factorial design arranged as randomized complete blocks (RCBD) with three replications. Data on plant height, leaf area, number of primary branches, essential oil content and oil yield were collected and analyzed. The analysis of variance revealed that there were highly significant (<em>p</em> &lt; 0.01) interaction effect of genotype with plant spacing for all parameters tested. The maximum essential oil yield (7.88 kg ha<sup>−1</sup>) was obtained from genotype BO-5 at 30 cm spacing, whilst the least (2.68 kg ha<sup>−1</sup>) was recorded from BO-1 at 40 cm spacing. The maximum oil content (101 mL g<sup>−1</sup>) was gained from BO-1 at 20 cm, but BO-3 at 30 cm spacing recorded the least oil content though there were no significant differences between the three treatment combinations. Further studies at different locations and seasons will be important to for future local recommendations.

scholarly journals Effect of Solid-State Fermentation on the essential oil yield of Curcuma longa residues

2021 ◽  
Author(s):  
Alexandre Teplaira Boum ◽  
Sylvie Nguikwie Kwanga ◽  
Doriane Tegoundio ◽  
Felix Adje Anoh
Keyword(s):  
Solid State ◽  
Essential Oil ◽  
Solid State Fermentation ◽  
Plant Material ◽  
Room Temperature ◽  
Curcuma Longa ◽  
Solid Wastes ◽  
Oil Yield ◽  
Experimental Conditions ◽  
Essential Oil Yield

Abstract The solid waste of Curcuma longa rhizomes generated after its cold juice process making is mostly unused and discarded even though they can contain essential oil. Conventional techniques such as hydrodistillation can be used to extract essential oil, but this generally results in low essential oil yield and inefficient extraction time. Solid-state fermentation as a pretreatment of distillation could improve the yield of essential oil. In this study, we evaluated the effect of solid state fermentation on the yield of extraction of Curcuma longa solid wastes essential oil. The solid-state fermentation was carried out naturally without any addition of inoculum and the extraction was performed by hydrodistillation. Under experimental conditions at room temperature and anaerobically in the dark, the treatment of 7 days of solid state fermentation followed by 2h of hydrodistillation provided the highest yield of 1.21% as compared to non-fermented of 0.35% and of 0.96% relative to the raw plant material representing an increase of 71% and 21% respectively. A

scholarly journals Light intensities alter growth and essential oil of patchouli under shade nets

2022 ◽  
Vol 52 (5) ◽  
Author(s):  
Aurislaine Santos Ribeiro ◽  
Suzan Kelly Vilela Bertolucci ◽  
Alexandre Alves de Carvalho ◽  
Wesley Naves Tostes ◽  
Adriane Duarte Coelho ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Oil Content ◽  
Oil Yield ◽  
Light Intensities ◽  
Pogostemon Cablin ◽  
Aromatic Species ◽  
Pharmaceutical Industries ◽  
Essential Oil Yield

ABSTRACT: Pogostemon cablin (Blanco) Benth. is an aromatic species popularly known as patchouli. The essential oil rich in patchoulol extracted from leaves is used by the pharmaceutical industries. The objective was to investigate the effects of shade nets and shading intensities on P. cablin growth, anatomy, chemical composition and essential oil content. The experiment was conducted with two types of shade nets (black and Aluminet), three light intensities (30, 50, and 70% shading) and full sun. The different light intensities influenced the growth and the essential oil yield, and chemical composition. Patchouli plants grown in an environment with shading showed higher values for the leaf, stem, root ant total dry weights compared to full sun. At 50% of shading, Aluminet provided gain in stem and total dry weights. Aluminet and black net at 50 and 70% of shading enhance essential oil yield. Patchoulol and pogostol contents were higher under full sun, and, black net and Aluminet at 50% shading. The environment for patchouli cultivation can be improved by use shade nets, especially with Aluminet at 50% of shading.

scholarly journals Essential Oil Extracted from Cymbopogon citronella Leaves by Supercritical Carbon Dioxide: Antioxidant and Antimicrobial Activities

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Hong Wu ◽  
Jilie Li ◽  
Yuan Jia ◽  
Zhihong Xiao ◽  
Peiwang Li ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Oil Quality ◽  
Antimicrobial Activities ◽  
Oil Yield ◽  
Chemical Compositions ◽  
Extraction Temperature ◽  
Experimental Conditions ◽  
Essential Oil Yield

To improve essential oil quality, especially to reserve the thermal instability of compounds, supercritical CO2 extraction (SFE) was applied to recover essential oil from Cymbopogon citronella leaves. A response surface methodology was applied to optimize the extraction process. The highest essential oil yield was predicted at extraction time 120  min, extraction pressure 25  MPa, extraction temperature 35°C, and CO2 flow 18  L/h for the SFE processing. Under these experimental conditions, the mean essential oil yield is 4.40%. In addition, the chemical compositions of SFE were compared with those obtained by hydrodistillation extraction (HD). There were 41 compounds obtained of SFE, while 35 compounds of HD. Alcohols and aldehydes were the main compositions in the essential oils. Furthermore, the antioxidant activities and antimicrobial of essential oils obtained by HD and the evaluated condition of SFE were compared. Results showed that the antioxidant activities of SFE oil are better than those of HD. Minimum inhibitory concentrations (MICs) were determined by the microdilution method. Essential oil obtained from SFE and HD exhibited a significant antimicrobial activity against all tested microorganisms. It is confirmed that the SFE method can be an alternative processing method to extract essential oils from Cymbopogon citronella leaves.

scholarly journals Chemical Description and Essential Oil Yield Variability of Different Accessions of Salvia lavandulifolia

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Jaime Usano-Alemany ◽  
Jesús Palá-Paúl ◽  
Manuel Santa-Cruz Rodríguez ◽  
David Herraiz-Peñalver
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Maximum Yield ◽  
Oil Production ◽  
Oil Yield ◽  
Cultivated Plants ◽  
Maturation Stage ◽  
Essential Oil Yield ◽  
Essential Oil Production

The amount and chemical composition of essential oils are crucial for the modulation of the flavor, scent and therapeutic properties of aromatic and medicinal plants. The aim of this study was to evaluate the effects of phenology and weather conditions on the essential oil yield obtained from the aerial parts of Salvia lavandulifolia Vahl. Besides, we tried to carry out an approach to the chemical composition at the time of full bloom. Essential oil production of several accessions was monitored throughout the whole phenological cycle, both, at the original location growing wild and at the experimental plot as cultivated plants. Local pedoclimatic conditions seem to be crucial for the plant essential oil production. Our results showed high conditioning rates from both yearly climatic conditions and developmental stage of the plants. Maximum yield production was reported at the full seed maturation stage (average 1.74%) and after a slight dry period (average 2.16%). Phytochemical differences were maintained when plants were forced to grow under common pedoclimatic conditions. Thereby, essential oil analysis showed some populations formed by clearly distinct individuals while others had more homogenous plants. Compounds such α-pinene, β-pinene + myrcene, limonene, 1,8-cineol, camphor and β-caryophyllene were the main compounds of the essential oils of S. lavandulifolia.

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