scholarly journals Yield and composition of supercritical fluid extracts of different Lamiaceae herbs

2007 ◽  
Vol 13 (2) ◽  
Author(s):  
G. Kutta ◽  
Zs. Pluhár ◽  
Sz. Sárosi
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid ◽  
Ocimum Basilicum ◽  
Thymus Vulgaris ◽  
Volatile Components ◽  
Plant Materials ◽  
Yield And Quality ◽  
Carbon Dioxide Extraction ◽  
Conventional Extraction

In our work the effectiveness of supercritical carbon dioxide extraction was studied on volatile components of Lamiaceae herbs. The aim of our investigations was to determine the optimal extraction parameters yielding high amount of volatiles in a desirable composition. As plant materials, dried and powdered cude drugs of Thymus vulgaris, Thymus pannonicus, Satureja hortensis, Ocimum basilicum, Rosmarinus officnalis and Salvia officinalis were chosen. Pressure (8-30 MPa), temperature (35-60 °C) and time (5-60 min) of extraction were regulated. Results obtained by supercritical fluid extraction (SFE) were compared to that of the conventional extraction procedur, hydrodistillation (HD). In the case of Thymus vulgaris, Thymus pannonicus and Salvia officnalis, extract yield of SFE was comparable to the essential oil amount obtained by hydrodistillation from the same drug. Essential oil rich thyme extracts were analysed by GC-FID. We have found that yield and quality of SFE extracts highly depend on the conditions of extraction.

scholarly journals Yield and composition of supercritical fluid extracts of different Lamiaceae herbs: Satureja hortensis L., Ocimum basilicum L. and Melissa officinalis L.

2008 ◽  
Vol 14 (4) ◽  
Author(s):  
G. Kutta ◽  
Zs. Pluhár ◽  
Sz. Sárosi ◽  
A. L. Fülöp ◽  
G. Sándor
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid ◽  
Extraction Procedure ◽  
Ocimum Basilicum ◽  
Melissa Officinalis ◽  
Plant Materials ◽  
Satureja Hortensis ◽  
Yield And Quality ◽  
Carbon Dioxide Extraction

In our work the effectiveness of supercritical carbon dioxide extraction was studied on volatile and nonvolatile components of Lamiaceae herbs. The aim of our investigations was to determine the optimal extraction parameters yielding high amount of volatiles and nonvolatiles in a desirable composition. As plant materials, dried and powdered cude drugs of Satureja hortensis, Ocimum basilicum and Melissa officinalis were chosen. Pressure (8-50 MPa), temperature (35-60 °C), time (5-60 min) and the ratio of modifier (5-50% methanol) of extraction were regulated. Results obtained by supercritical fluid extraction (SFE) were compared to that of the conventional extraction procedure, hydrodistillation (HD). In the case of Satureja hortensis, Ocimum basilicum and Melissa officinalis extract yield of SFE was comparable to the essential oil amount obtained by hydrodistillation from the same drug. Essential oil rich extracts were analysed by GC-FID, while extracts rich in nonvolatile compounds were analysed by HPLC. We have found that yield and quality of SFE extracts highly depend on the conditions of extraction.

scholarly journals The Effect of Open Field and Foil Tunnel on Yield and Quality of the Common Thyme (Thymus vulgaris L.), in Organic Farming

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 197
Author(s):  
Olga Kosakowska ◽  
Zenon Węglarz ◽  
Katarzyna Bączek
Keyword(s):  
Essential Oil ◽  
Organic Farming ◽  
Open Field ◽  
Phenolic Acids ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Temperate Climate ◽  
Thymus Vulgaris ◽  
Yield And Quality

Common thyme (Thymus vulgaris L., Lamiaceae) is regarded as one of the most important aromatic plant used both as a spice and medicine. The aim of this work was to investigate the yield and quality of common thyme grown for a fresh herb, cultivated in the organic farming system, within the temperate climate in Poland. Two methods of cultivation were applied: open field and foil tunnel. Three successive cuts of herb were possible to obtain during vegetation season, from the middle of July until the end of September. The raw material was analyzed for the content of essential oil (by hydrodestillation), phenolic acids and flavonoids according to Polish pharmacopeia (PP 6th). The composition of essential oil was determined by gas chromatography-mass spectrometry (GC-MS). Sensory evaluation was carried out by quantitative descriptive analysis (QDA) with a trained panelist. The yield of fresh herb was visibly higher when regards cultivation under foil tunnel in comparison to open field, reaching up to 6.74 kg FW × 10 m2. The content of essential oil as well as the percentage share of thymol (a dominant constituent, achieving up to 57.08%) decreased with consecutive herbal cuts. The opposite result was observed for phenolic compounds (phenolic acids and flavonoids). It was shown that the amount of flavonoids was similar in both variants of cultivation, while phenolic acids were accumulated at higher level in the open field conditions. Sensory analysis indicated on slight differences in odor and taste attributes, between samples of fresh herb collected from open field and foil tunnel.

scholarly journals Influence of Organic and Inorganic Fertilizers on Coriander (Coriandrum sativum L.) Agronomic Traits, Essential Oil and Components under Semi-Arid Climate

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1427
Author(s):  
Gulen Ozyazici
Keyword(s):  
Essential Oil ◽  
Seed Yield ◽  
Harvest Index ◽  
Agronomic Traits ◽  
Climatic Conditions ◽  
Coriandrum Sativum ◽  
Inorganic Fertilizers ◽  
Yield And Quality ◽  
Biological Yield

Environmental contamination and the excessive use of inorganic fertilizers resulting in stagnant yields of field crops which necessitate the utilization of combined fertilization approach under changing climatic conditions. Current study was aimed to clarify the influence of several fertilizer sources (chemical, organic, organomineral fertilizers) on yield and quality of coriander (Coriandrum sativum L.). The results revealed that the fertilizer sources significantly affected the yield of coriander cultivars. The absence of “Year x Variety x Fertilizer Type” interactions for any of the noted parameters signaled that the detected “Variety x Fertilizer Type” interactions were constant regardless of the year factor. The recorded values of traits according to fertilizer sources different for the plant height from 61.85 to 69.67 cm, number of branches from 5.98 to 7.71 (piece/plant), number of umbels per the main umbel from 5.62 to 7.18 pieces, seed yield from 1.06 to 1.66 t/ha, the biological yield from 4.29 to 5.70 t ha−1, harvest index from 25.29 to 29.41%, essential oil ratio from 0.29 to 0.33%, and essential oil yield from 3.1 to 5.6 L ha−1. Erbaa variety was observed to be superior over the rest of the varieties producing the maximum values of 6.5 L ha−1 of essential oil, 0.36% essential oil content, 30.9% harvest index, 1.81 t/ha seed yield, and 5.9 t ha−1 biological yield with the treatment of chemical fertilizers.

scholarly journals Basil (Ocimum basilicum L.) essential oil and extracts obtained by supercritical fluid extraction

2015 ◽  
pp. 259-269 ◽  
Author(s):  
Zoran Zekovic ◽  
Snezana Filip ◽  
Senka Vidovic ◽  
Dusan Adamovic ◽  
Ahmed Elgndi
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Ocimum Basilicum ◽  
Official Method ◽  
Fluid Extraction ◽  
External Standard Method ◽  
Peak Areas ◽  
Quantitative Results ◽  
Supercritical Fluid Carbon Dioxide

The extracts obtained from sweet basil (Ocimum basilicum L.) by hydrodistillation and supercritical fluid extraction (SFE) were qualitative and quantitative analyzed by GC-MS and GC-FID. Essential oil (EO) content of basil sample, determined by an official method, was 0.565% (V/w). The yields of basil obtained by SFE were from 0.719 to 1.483% (w/w), depending on the supercritical fluid (carbon dioxide) density (from 0.378 to 0.929 g mL-1). The dominant compounds detected in all investigated samples (EO obtained by hydrodistillation and different SFE extracts) were: linalool, as the major compound of basil EO (content from 10.14 to 49.79%, w/w), eugenol (from 3.74 to 9.78%) and ?-cardinene (from 3.94 to 8.07%). The quantitative results of GC-MS from peak areas and by GC-FID using external standard method involving main standards, were compared and discussed.

scholarly journals Influence of preemergently applied herbicides on the yield and quality of caraway achenes (Carum carvi L.)

2008 ◽  
Vol 56 (2) ◽  
pp. 255-266
Author(s):  
Antonín Vaculík
Keyword(s):  
Essential Oil ◽  
Standard Length ◽  
Oil Content ◽  
Competitive Ability ◽  
Weed Species ◽  
Yield And Quality ◽  
Significant Difference ◽  
Positive Effect ◽  
Different Doses

Caraway has very low competitive ability against most of weed species. Therefore, it is important to choose a suitable herbicide control, especially at biennial caraway. The experiments with the herbicides applied in caraway were found in pure growth, with variety Kepron (with standard length of ve­ge­ta­ti­ve period). The aim of the trials was to find out the differences at achenes yiled and essential oil content after the treatment by the various herbicides, applied preemergently. Also, the selective ac­ti­vi­ty of individual herbicides was tested, including the different doses. The herbicides used in the ex­pe­ri­ments had enough level of selektivity on the plants of caraway. They had a positive effect on the yiled comparing to non-treated control variant in all observed years. There was no statistically significant difference in essential oil kontent between the treated variants and non-treated control. On the basis of these results, the most suitable herbicide was chosen for the „minor“ registration for caraway.

scholarly journals Optimized supercritical CO2 extraction conditions on yield and quality of torch ginger (Etlingera elatior (Jack) R.M. Smith) inflorescence essential oil

2020 ◽  
Vol 154 ◽  
pp. 112581
Author(s):  
Anis Asyila Marzlan ◽  
Belal J Muhialdin ◽  
Nur Hanani Zainal Abedin ◽  
Nameer Khairullah Mohammed ◽  
Muna Mahmood Taleb Abadl ◽  
...  
Keyword(s):  
Essential Oil ◽  
Supercritical Co2 ◽  
Supercritical Co2 Extraction ◽  
Yield And Quality ◽  
Etlingera Elatior

Effect of harvest date on the yield and quality of the essential oil of peppermint

1993 ◽  
Vol 73 (3) ◽  
pp. 815-824 ◽  
Author(s):  
William A. Court ◽  
Robert Pocs ◽  
Robert C. Roy
Keyword(s):  
Essential Oil ◽  
Plant Biomass ◽  
Essential Oil Composition ◽  
Harvest Date ◽  
Mentha Piperita ◽  
Oil Composition ◽  
Yield And Quality ◽  
Loamy Sand Soil ◽  
Physical And Chemical

A field experiment was conducted from 1989 to 1991 on a Fox loamy sand soil to study the effects of harvest date on selected agronomic, physical and chemical characteristics of peppermint (Mentha piperita L.). Plant biomass and essential oil yields increased throughout the season to a maximum in very late August to early September. Menthol, neomenthol, and menthyl acetate concentrations increased in the essential oil with plant development. The amount of menthone and isomenthone was highest in immature plants. The concentrations of menthofuran and pulegone in the essential oil corresponded to the amount of flower bloom in the peppermint. Changes during the season in the concentrations of piperitone, terpinene-4-ol, α-terpineol, 1,8-cineole, limonene, γ-terpinene, terpinolene, α-terpinene, α-pinene, β-pinene, 3-octanol, β-myrcene, Linalool, sabinene, caryophyllene and Germacrene-D were typically quite small. In general, these preliminary results indicate that peppermint can be grown successfully on the coarse-textured soils of Ontario. Key words: Mentha piperita L., peppermint, essential oil, essential oil composition, harvesting date

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