scholarly journals Effect of different liming levels on the biomass production and essential oil extraction yield of Cunila galioides Benth

2012 ◽  
Vol 72 (4) ◽  
pp. 787-793 ◽  
Author(s):  
AJ. Mossi ◽  
GF. Pauletti ◽  
L. Rota ◽  
S. Echeverrigaray ◽  
IBI. Barros ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Biomass Production ◽  
Acid Soils ◽  
Dry Weight ◽  
Extraction Yield ◽  
Oil Yield ◽  
Experimental Conditions ◽  
Set Up ◽  
Essential Oil Yield

Poejo is an aromatic and medicinal plant native to highland areas of south Brazil, in acid soils with high Al3+ concentration. The main objective of the present work was to evaluate the effect of liming on the extraction yield of essential oil of three chemotypes of poejo (Cunila galioides Benth). For this purpose, the experiments were performed in a greenhouse, using 8-litre pots. The treatments were four dosages of limestone (0, 3.15, 12.5, and 25 g.L-1) and a completely random experimental design was used, with four replications and three chemotypes, set up in a 3 × 4 factorial arrangement. The parameters evaluated were dry weight of aerial parts, essential oil content and chemical composition of essential oil. Results showed that liming affects the biomass production, essential oil yield and chemical composition, with cross interaction verified between chemotype and limestone dosage. For the higher dosage lower biomass production, lower yield of essential oil as well as the lowest content of citral (citral chemotype) and limonene (menthene chemotype) was observed. In the ocimene chemotype, no liming influence was observed on the essential oil yield and on the content of major compounds. The dosage of 3.15 g.L-1 can be considered the best limestone dosage for the production of poejo for the experimental conditions evaluated.

scholarly journals SPENT MUSHROOM SUBSTRATE of Pleurotus ostreatus KUMMER INCREASES BASIL BIOMASS AND ESSENTIAL OIL YIELD

2021 ◽  
Vol 34 (3) ◽  
pp. 548-558
Author(s):  
CRISTIANO OLIVEIRA DO CARMO ◽  
MARCOS DE SOUZA RODRIGUES ◽  
FRANCELI DA SILVA ◽  
TÂMARA GRAZIELE MATOS IRINEU ◽  
ANA CRISTINA FERMINO SOARES
Keyword(s):  
Essential Oil ◽  
Biomass Production ◽  
Pleurotus Ostreatus ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Oil Yield ◽  
Spent Mushroom Substrate ◽  
Organic Fertilization ◽  
Average Plant ◽  
Essential Oil Yield

ABSTRACT Lignocellulosic residues are used to produce mushrooms, but they generate large amounts of spent mushroom substrate (SMS). The objective of this study was to evaluate they effect of SMS of Pleurotus ostreatus, combined with organic fertilization, on biomass production and essential oil yield of basil (Ocimum basilicum L.) plants. The fertilizer was formulated using combinations of organic compounds: SMS, organic compost (OC), and earthworm humus (EH). The treatments were applied using 35 g of the formulations, corresponding to an application of 20 Mg ha-1. The treatments used were: 100% OC; 100% EH; 100% SMS; 75% SMS + 25% OC (C1); 75% SMS + 25% EH (C2); 50% SMS + 50% OC (C3); 50% SMS + 50% EH (C4); 50% SMS + 25% OC + 25% EH (C5), and a control with no fertilizer application (CT). Plants grown with the soil fertilizers containing SMS, single or combined with OC and EH, presented higher average plant height (55.6 to 62.2 cm) and leaf area per plant (696.5 to 836.4 cm2). The treatment C3 resulted in plants with higher mean dry weight (10.9 g plant-1), and C2 resulted in the highest oil yield (5.0 kg ha-1), representing a gain of 324.8% in oil yield when compared to the control. Thus, SMS increases biomass production and essential oil yield of basil plants.

scholarly journals Effects of different levels of mulch and irrigation on growth traits and essential oil content of basil

2020 ◽  
Vol 15 (3) ◽  
Author(s):  
Fatemeh Nejatzadeh-Barandozi
Keyword(s):  
Essential Oil ◽  
Leaf Area ◽  
Wood Chip ◽  
Dry Weight ◽  
Wood Chips ◽  
Growth And Yield ◽  
Oil Yield ◽  
Fresh Weight ◽  
Essential Oil Yield ◽  
Different Levels

Ocimum basilicum L. is an herbaceous plant from the Labiate family that used fresh, as a spice, and as a medicinal plant. Mulch is technique capable of reducing evaporation from the surface of the soil in basil production systems; it has more impacts on yield and essential oil quality of a basil crop. This research was performed in order to study the effects of different mulch types and irrigation regimes on various growth parameters and the essential oil content of basil. Treatments included two mulch types (black plastic, wood chips, and control) and three irrigation levels (100, 80, and 60% of water requirements, calculated by evaporation pan class A), following a randomised complete block design with four replications. Results showed that the effect of irrigation on fresh weight, dry weight, leaf relative water content, leaf area, and essential oil yield was significant (P<0.05). The effect of mulch on fresh weight, dry weight, leaf area, inter-node distance, number of branches, and essential oil yield was significant (P<0.05). Interaction between irrigation and mulch on inter-node distance, fresh weight, dry weight, and leaf area was significant (P<0.05). This study identified wood chips as the best mulch treatment. The highest dry weight yield (38.35 g/plant) and the highest essential oil yield (82.83 L/ha) resulted when wood chip mulch was used in combination with irrigation at 100% of the water requirement. This combination also resulted in the highest water productivity in basil production.   Highlights - Different levels of irrigation alone did not always increase plant growth and yield of basil. - Different levels of mulch alone did not always increase plant growth and yield of basil. - Different levels of irrigation and mulch in combination used, increased, growth and essential oil yield of basil. - This study identified wood chips as the best mulch treatment. - The highest essential oil yield resulted with wood chip mulch and irrigation at 100% of the water requirement.

Variation of Malva sylvestris essential oil yield, chemical composition and biological activity in response to different environments across Southern Italy

2017 ◽  
Vol 98 ◽  
pp. 29-37 ◽  
Author(s):  
Sebastiano Delfine ◽  
Mariangela Marrelli ◽  
Filomena Conforti ◽  
Carmen Formisano ◽  
Daniela Rigano ◽  
...  
Keyword(s):  
Biological Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Southern Italy ◽  
Oil Yield ◽  
Malva Sylvestris ◽  
Essential Oil Yield

Model of Steam and Water Extraction of Essential Oil of Eucalyptus Citriodora Using a Complete 2n Factorial Plan

2009 ◽  
Vol 5 (4) ◽  
Author(s):  
Thomas Silou ◽  
Georges Mapola ◽  
Roger Armand Makany ◽  
Aubin Nestor Loumouamou ◽  
Marc Malanda ◽  
...  
Keyword(s):  
Essential Oil ◽  
Extraction Yield ◽  
Oil Yield ◽  
Small Scale ◽  
Plant Interactions ◽  
Eucalyptus Citriodora ◽  
Water Distillation ◽  
Positive Effects ◽  
Essential Oil Yield ◽  
Factorial Plan

The steam and water distillation of leaves of Eucalyptus citriodora was modeled using a complete 2n factorial plan. Eight experiments were carried out, with three easily interpretable variables, for steam distillation and for a first degree polynomial model. The average essential oil yield was 2.3%. Positive effects decreased in the order: duration of the extraction, heating power and state of division of the plant. Interactions were negligible. Extraction conditions had no practical impact on citronellal content, which yielded an average content of 83.26% with a range of 80.2-85.4%. Weak negative effects were observed on duration of heating and state of division of plant material. Sixteen experiments were conducted on four variables for water distillation. The extracted essential oil yield was increased by 28%. Effects on citronellal content were the same as with steam extraction. Hence, water distillation is better suited for small-scale extraction given the simplicity of the equipment required and the significant gain in extraction yield.

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.

Influence of common juniper berries pretreatment on the essential oil yield, chemical composition and extraction kinetics of classical and microwave-assisted hydrodistillation

2018 ◽  
Vol 122 ◽  
pp. 402-413 ◽  
Author(s):  
Miljana S. Marković ◽  
Dragana B. Radosavljević ◽  
Vladimir P. Pavićević ◽  
Mihailo S. Ristić ◽  
Svetomir Ž. Milojević ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Oil Yield ◽  
Extraction Kinetics ◽  
Microwave Assisted ◽  
Kinetics Of ◽  
Essential Oil Yield ◽  
Common Juniper

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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