optimization and kinetic study of gaharu oil extraction

Optimization and Kinetic Study of Gaharu Oil Extraction – CORE

Gaharu has been widely used in aromatheraphy, medicine, perfume and religious practices. This work aimed to determine the factors affecting solid liquid extraction of gaharu oil using hexane as solvent under experimental condition. The kinetics of extraction was assumed and verified based on a second-order mechanism. Modeling and optimization of the operating conditions of Marrubium vulgare L. essential oil, extraction process: kinetic parameters estimation through genetic algorithms Journal of Essential Oil Bearing Plants , 19 ( 2016 ) , pp. 843 – 853 4 Optimization of the Gaharu Leaves and Formulated Gaharu Tea Extraction 3.4.1Ethanol Concentration With the constants – 180 minutes and temperature 25 O C, samples were extracted with six different concentrations of ethanol starting from 0% to 100% (v/v). The extraction procedures were described in section 3.

Optimization and Kinetic Study of Supercritical CO_2

Objectives: To optimize the supercritical CO2 extraction(SCE) of volatile oil from Fructus amomi rotundus and propose a model to describe the extraction kinetics.Methods: An orthogonal array design was used to optimize the extraction process.A model to describe the extraction kinetics was proposed based on differential mass balance model and Fick,s first law.Results: The optimal extraction Optimization and kinetic study of gaharu oil extraction. Int. Sch. Sci. Res. Innov. 7, 454–457. Chang KS, Tak JH, Kim SI, Lee WJ, Ahn YJ. 2010. Repellency of Cinnamomum cassia bark compounds and cream con­taining cassia oil to Aedesaegypti (diptera: culicidae) under laboratory and indoor conditions. Pest. Manag. Sci. 62, 1032–1038. This article reports optimization and kinetic studies on extraction of Sterculia foetida seed oil and process optimization for biodiesel production from the same. The oil extraction follows first-order kinetics, and the yield was found to reach a maximum of 55.58 wt % for a 1:12 seed-to-hexane weight ratio. The activation energy and activation thermodynamic parameters at 338 K were determined


Azlina MF, Hasfalina CM, Zurina ZA, Hishamuddin J. (2013) Optimization and kinetic study of gaharu oil extraction. International Journal of Agricultural and Biosystems Engineering. 7(6):454-7. doi: 10.5281/zenodo.1079248. Mohamed R, Jong PL. (2014) Fungal inoculation induces agarwood in young Aquilaria malaccensis trees in the nursery. Gaharu (agarwood) is a fragrant wood that is usually derived from the diseased timber of the genus Aquilaria (Thymelaeceae) and often occurs as dark coloured patches or streaks in the tree. Due to its strong, unique scent and medicinal properties, gaharu oil is greatly valued as perfumery ingredient and incense. Gaharu may be classified into various grades; Grade A, B, C and D and they are In order to study the process of extraction of the essential oil of Tymus numidicus kabylica extracted by steam distillation, kinetic studies as well as an optimization of the operating conditions were achieved. The optimization was carried out by a parametric study and experiments planning method.

Optimization of Soxhlet Extraction of Herba Leonuri Using

Soxhlet extraction technique is employed for the extraction and separation of chemical constituents in the medicinalplant, Herba Leonuri. The main goal of this analytical study was focused on extracted compounds and extractionconditions themselves. Soxhlet extractions were performed at three extraction time (6h, 9h and 12h) and with twosolvents (n-hexane and methanol). A general full factorial In order to study the extraction process of essential oil from Artemisia herba-alba, kinetic studies as well as an optimization of the operating conditions were achieved. The optimization was carried out by a parametric study and experiments planning method. In the study the yield and kinetic and thermodynamic parameters of the oil extraction process from<i> Jatropha curcas</i> L. using ethanol as a solvent were evaluated for different temperatures, moisture contents of the solid phase, and particle sizes. The extraction process yield increased with contact time of solid particles with the solvent until reaching equilibrium (saturation of the

Extraction kinetics modeling of wheat germ oil supercritical

The aim of this study was the optimization of supercritical fluid extraction (SFE) of wheat germ oil obtained as by-product from industrial mill. Extraction kinetics modeling and response surface methodology (RSM) were used for that purpose. The Fractional Inhibitory Concentration Index was determined according the two-dimensional checkboard methods. The efficiency of the simulated optimum concentrations confirmed experimentally on American type culture collection strains, through the Time Kill Kinetic Study. RESULTS: The yield of extraction of essential oil was 0.1%. The oil yield, fatty acid composition and the physicochemical and quality characteristics of Tamarindus indica Linn seed oils obtained by solvent extraction were determined. Effect of various solvent and solvent combinations on the extraction of T. indica seed oil showed that ethanol as an alternative solvent to have better yield with 8%.

Towards Higher Oil Yield and Quality of Essential Oil

Optimization through response surface methodology revealed temperature to be the most critical factor for the extraction process, while the optimum conditions for temperature, sample-to-solvent ratio, and time for subcritical water extraction was revealed as 225 °C, 0.2 gr/mL, and 17 min, respectively. Extraction of Allium sativum L. using Solvent-Free Microwave Extraction (SFME) without the addition of solvents in the process has been carried out. SFME is an alternative technique and method to produce essential oil and it has several advantages in terms of product quality. Reutealis trisperma, due to its high kernel-oil yield (&plusmn;50%) and long productivity (&plusmn;70 years), is considered to be a promising feedstock for biodiesel production. In addition, this plant, which can thrive on marginal lands, is classified as a non-edible oil since it contains a toxin known as eleostearic acid. The present study aimed to optimize the esterification step in

Characterization, kinetics and statistical screening analysis

The kinetics and optimization of oil extraction from gmelina seed was studied. The effect of various process variables such as temperature, time, volume of solvent, particle size, and their interaction on oil yield was investigated. A predictive model describing the oil yield in terms process variables was derived from multiple regression analysis. Optimum yield of 49.90 % was predicted at Nevertheless, there is very limited report on agarwood leaf essential oil (ALEO). Hence, this present study was conducted to evaluate the physicochemical properties, chemical constituents and anticancer activity of ALEO. ALEO was observed to be of pale-yellow colour with sweet smell. Kinetic Extraction, Optimization, Batch, Response Surface Methodology Abstract. The baru oil has a high degree of unsaturation and relevant amount of oleic and linoleic acids content, which favors its use for food and pharmaceutical industries. Hexane is the most widely used solvent for oil extraction.