scholarly journals Distillation Assisted by Microwave for Extracting Essential Oil from Java Cananga Flowers

2015 ◽  
Vol 9 (7) ◽  
pp. 199 ◽  
Author(s):  
M. Mahfud ◽  
A. Chandra K. F. ◽  
L. Qadariyah ◽  
P. Prihatini

Cananga oil is one type of essential oil that called etheric oil or light oil. To increase the production of canangaoil, it is need to improve distillation methods and operating conditions, so that extraction process can producecananga oil more efficient. The aims of this research are to study several factors that influence the distillationmethods assisted by microwave, i.e.: flowers conditions, extraction time, mass of material, and microwave power.The experiment was conducted in a round bottom flask distiller that was placed inside a microwave oven andequipped with a Liebig condenser. The operating variables are: flowers conditions (fresh, wilted, chopped). Thecontent of distiller (100, 150, 200 gr). The results of this research shows that the yield of fresh flowers (0.6251 -1.1965%) were higher than wilted flowers (0.5391 - 1.0755%). The mass ratio of material by volume ofdistillation flask influences on yield obtained. The denser of material, the less of oil yield be obtained. The oilyield increase with time extraction, microwave power and temperature. The distillation assisted by microwave ismore efficient than conventional distillation, because we can increase the oil yield with shorter extraction time.The quality of cananga oil obtained by distillation assisted by microwave is conforming to quality standard ofIndonesian (SNI) and Essential Oil Association (EOA).

Author(s):  
Z. M. Zakiah Mohd Yusoff ◽  
Nur Dalila Khirul Ashar ◽  
Zuraida Muhammad ◽  
Amar Faiz Zainal Abidin ◽  
Noor Fadzilah Razali ◽  
...  

This paper presents the real time robustness test using intelligent fuzzy based controller in extraction process of essential oil is discussed in this study. Previous finding shows that the quality of the essential oil is affected by the steam temperature that acts as the control variable in this study. The robustness test is applied to the system during running process to show the system is robust to any operation conditions t make sure the controller is able to give a smooth control output response. The dynamic performance of the system are represented by applying  standard performance criteria such as rise time Tr, settling time Ts, overshoot <em>%OS</em>, root mean square error (RMSE) and time on recovering load disturbance. Generally, the objectives in designing the controllers have been achieved because all intelligent fuzzy based controllers capable to regulate the desired set point by acting on the change in the output compared with the set point.


Author(s):  
Jaroslav Králík ◽  
Miroslav Jůzl ◽  
Blanka Kocourková

The work deals with the possibility of improvement of qualitative and quantitative parameters of caraway (Carum carvi L.). The yield of the achenes is not satisfactory during last years and qualitative demands are clarify in correspondence to the market. The possibilities of this variation can be found in growing technology and in variety spectrum. The influence of weather is inconsiderable. Therefore, the experiments with three varieties were found (PROCHAN, KEPRON and REKORD). They were cultivated in cover crop and as pure growth on three sites. The yield components were evaluated in all variants: the yield of the achenes from m2, HTS (the weight of thousand seeds in g), the essential oil content in % and essential oil yield in kg.ha–1. On the basis of the results from the experiments we can make following conclusions. The highest yield was recorded in Šumperk site with cover crop. The varieties did not affect the yield. HTS was different on the sites, the highest HTS had the achenes from Telč. The differences were determined between vegetative periods. Also the essential oil content, similarly as the HTS, was influenced by the vegetative period and by the site. The essential oil yield corresponded with the essential oil content and with the yield of the achenes. The vegetative period almost always affected yield and the quality of caraway fundamentally. There were no differences among the varieties for all studied traits.


2016 ◽  
Vol 87 ◽  
pp. 210-217 ◽  
Author(s):  
Rajendra P. Patel ◽  
Rakshapal Singh ◽  
B.R. Rajeswara Rao ◽  
R.R. Singh ◽  
Abhilasha Srivastava ◽  
...  

2019 ◽  
Vol 298 ◽  
pp. 100-105 ◽  
Author(s):  
Thien Hien Tran ◽  
Ngo Thi Quyen ◽  
Huynh Thi Kieu Linh ◽  
Thuy Trang Le Ngoc ◽  
Phan Minh Quan ◽  
...  

In this research, the hydrodistillation extraction method has been adopted to extract the essential oil from Vietnamese Mandarin (Citrus reticulata Blanco) peel purchased from Thu Duc, Vietnam. Various extraction conditions influencing the oil yield were investigated. The obtained essential oil was evaluated for physicochemical characteristics. GC–MS studied the chemical composition of the oil. The results showed that with the ground Mandarin peel, the ratio of peel to solvent ratio 1:4 (g/mL), extraction time of 150 minutes at a temperature of 110-120°C, the highest essential oil yield was attained at 5%. Bioactive components found at high content included limonene (97.655%), were followed by β-Myrcene (1.395%), 1R-α-Pinene (0.561%), L-β-pinene (0.264%), Sabinene (0.126%).


Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3872
Author(s):  
M. Samadi ◽  
Z. Zainal Abidin ◽  
H. Yoshida ◽  
R. Yunus ◽  
D. R. Awang Biak

A method that delivers a high yield and excellent quality of essential oil, which retains most of its value-added compounds, and undergoes least change after the extraction process, is greatly sought after. Although chemical free methods are acceptable, they call for an extensive processing time, while the yield and quality from these methods are often disappointing. This work utilizes subcritical water technology to address these issues. In this undertaking, essential oil was extracted from Aquilaria malaccensis wood by way of subcritical conditions, and characterized through gas chromatography/mass spectroscopy (GC/MS). 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. The subcritical water extraction technique involves two simultaneous processes, which are based on good fitting to the two-site kinetic and second order model. In comparison to the hydrodistillation method, GC/MS results indicated that the quality of A. malaccensis’ wood oils, derived through the subcritical water technique, are of significantly better quality, while containing many constructive value-added compounds, such as furfural and guaiacol, which are useful for the production of pesticides and medicines. Pore size, functional groups, and morphology analysis revealed the occurrence of substantial damage to the samples, which facilitated an improved extraction of bio-products. In comparison to conventional methods, the use of the subcritical method not only involves a shorter processing time, but also delivers a higher oil yield and quality.


2021 ◽  
Vol 170 ◽  
pp. 113803
Author(s):  
Diego Alves Peçanha ◽  
Marta Simone Mendonça Freitas ◽  
Marlene Evangelista Vieira ◽  
Jéssica Morais Cunha ◽  
Assistone Costa de Jesus

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