scholarly journals EKSTRAKSI 1,8-CINEOLE DARI MINYAK DAUN EUCALYPTUS UROPHYLLA DENGAN METODE SOXHLETASI

2015 ◽  
Vol 4 (3) ◽  
pp. 52-57
Author(s):  
Irvan ◽  
Putra B. Manday ◽  
Januar Sasmitra

Eucalyptus urophylla plants (family: Myrtaceae, order: Myrtales ) usually are used only wooden parts for the manufacture of frames, pulp and paper, whereas their leaves can be used to produce essential oils in the pharmaceutical usage. The aim of this research is to extract the essential oils from leaves of Eucalyptus urophylla with soxhlet extraction method, in order to obtain maximum recovery of essential oils with good quality. Prior to the extraction process, the fresh leaves of Eucalyptus urophylla were reduced so that its size become 1 × 1 cm, and then dried in an oven at a temperature of 70 °C for 1 hour after being wrapped in a filter paper, after that followed by the extraction of the leaves using a variety of solvents, namely 96 % ethanol, n-hexane and dichloromethane, then proceed with the analysis of essential oil products (cineol content analysis). In this study, experiments were conducted with a variety of treatments such as the ratio of the volume of solvent to yield, the ratio of the mass of leaves of Eucalyptus urophylla to the yield on 5 cycles , and temperature of the solvent to yield. The conclusions of this research are the best extraction results with maximum cineol value (29.17 %) was obtained using dichloromethane solvent, while using 96 % ethanol produced the maximum yield of extract.

2016 ◽  
Vol 1 (1) ◽  
pp. 57-63
Author(s):  
Nur Fathin Amirah Shafie ◽  
Asdarina Yahya ◽  
Fazlena Hamzah

Significance of essential oils from Etlingera elatior (E. elatior) are growing these days and have prospective to embrace great export in future, yet the quantity of the essential oil extracted does not extant in decent rate. Therefore the purpose of this research is to determine the optimum yield of the E. elatior essential oil. The E. elatior were prepared in two conditions which are normal (fresh) and dry grinded sample. The extraction of normal and dry grinded E. elatior was conducted using Soxhlet extraction with methanol as a solvent. The extraction process was conducted at different extraction time (2, 4, 6 hours). The study indicated that the dry grinded E. elatior produced a higher yield of essential oil as compared to normal grinded E. elatior. The yield of essential oil obtained from dry grinded E. elatior was 71.44% while with normal grinded E. elatior, the yield was 56.42%. The effect of extraction time towards yield of essential oil shown that prolong extraction up to 6 hours gave a higher yield of E. elatior essential oil. The constituents in the E. elatior essential oil were determined and quantified using GC-MS analysis. The analysis indicated that the E. elatior essential consist of 2-Furaldehyde, 5- methyl, 3-Methyl-1,2-cyclopentanedione, Maple lactone, Furan-2,5-dial, Pyranone and 5-Hydroxymethyl furaldehyde.


2021 ◽  
Vol 882 ◽  
pp. 191-199
Author(s):  
Suharno Rusdi ◽  
Farida Imtiyaz ◽  
Nopia Denvil Wulandari ◽  
Achmad Chafidz

In this work, an essential oil was extracted from from Sedap Malam (Tuberose) flower using n-hexane as the solvent. The extraction process was performed using simple soxhlet extraction method with the ratio between Sedap Malam flower and n-hexane solvent was 1:5. The physical properties, such as density and rendement values of the extracted essential oil were analyzed. The analysis results exhibited that the essential oil has average rendement value of 9.91 % and density value of 0.9275 g/mL. Additionally, organoleptic testing was also carried out to test the response of respondents toward the color and odor/fragrance of the extracted essential oil. The results showed that the responses of the respondents about the color and fragrance of the extracted essential oil were quite satisfactory. The highest responses for both color and the fragrance were belong to “Really Like” category. The extracted essential oil was also characterized using Gas Chromatography - Mass Spectrometry (GC-MS) apparatus and Fourier Transform Infra-Red (FT-IR) analysis.


Molecules ◽  
2019 ◽  
Vol 24 (11) ◽  
pp. 2053 ◽  
Author(s):  
Yaoyao Peng ◽  
Karen Suzanne Bishop ◽  
Siew Young Quek

Feijoa is an aromatic fruit and the essential oil from feijoa peel could be a valuable by-product in the juicing industry. An initial comparison of the essential oil extraction methods, steam-distillation and hydro-distillation, was conducted. The volatile compounds in the essential oils from four feijoa cultivars were identified and semi-quantified by GC-MS and the aroma active compounds in each essential oil were characterized using SPME-GC-O-MS. Hydro-distillation, with a material to water ratio of 1:4 and an extraction time of 90 min, was the optimized extraction method for feijoa essential oil. The Wiki Tu cultivar produced the highest essential oil yield among the four selected cultivars. A total of 160 compounds were detected, among which 90 compounds were reported for the first time in feijoa essential oils. Terpenes and esters were dominant compounds in feijoa essential oil composition and were also major contributors to feijoa essential oil aroma. Key aroma active compounds in feijoa essential oils were α-terpineol, ethyl benzoate, (Z)-3-hexenyl hexanoate, linalool, (E)-geraniol, 2-undecanone, 3-octanone, α-cubebene, and germacrene D. This is the first report on the optimization of the extraction method and the establishment of the aroma profile of feijoa essential oils, with a comparison of four New Zealand grown cultivars.


2021 ◽  
Vol 25 (8) ◽  
pp. 1461-1463
Author(s):  
O.E. Ameh ◽  
J.I. Achika ◽  
N.M. Bello ◽  
A.J. Owolaja

This work aimed to extract perfume from the leaves of Cymbopogon citratus using three extraction methods viz: distillation, solvent extraction and expression or effleurage. About 150 g of dried lemons grass were extracted using ethanol as the solvent to obtain essential oils required for the formulation of perfumes. The result of the hydrodistillation process showed that 1.23 g of essential oil per 130g of dry lemongrass produce 0.95% oil at 78 °C, while the effleurage method was 2.55 g of essential oil per 130 g of dry lemongrass sample thereby producing 1.96% oil yield. The solvent extraction method gave 2.7 g of essential oil per 130 g of dry lemongrass sample. This gives about 2.08 % yield of essential oil at a temperature of 78°C i.e. the boiling point of ethanol. The solvent extraction method yielded 2.08%, the effleuragemethod yielded 1.96% and the hydrodistillation method yielded 0.95% essential oil respectively. In conclusion, solvent extraction gave the highest yield because of less exposure to air and heat, which is highly recommended as the most suitable method for the extraction of essential oil.


2019 ◽  
Vol 8 (4) ◽  
pp. 5010-5012

Phyllanthus emblica contains rich vitamin C and polyphenol. In the present work, the potential anti oxidant polyphenols is produced from Phyllanthus emblica using soxhlet extraction process. For this purpose, 150 millimeter size of the phyllanthus emblica bark was collected and solvents such as ethanol, acetone and methanol is used for extracting polyphenols from the Phyllanthus emblica. The obtained extract is separated and total phenolic content is determined from the product. From the study it was observed that maximum yield of polyphenol obtained from 80 volume % of ethanol at a temperature of 70°C. The results will be useful in understanding this amla fruit, hence large scale production can be improved industrially.


2020 ◽  
Vol 32 (12) ◽  
pp. 3227-3238
Author(s):  
A.E. Aladejana ◽  
G. Bradley ◽  
A.J. Afolayan

Till date, no study has ever looked into the effect of extraction method on the chemical constituents of the essential oil of Helichrysum petiolare. This study therefore evaluated the effect of hydrodistillation and solvent free microwave extraction (SFME) methods on the chemical constituents of H. petiolare derived essential oils. The SFME derived essential oil was deep yellow and of higher yield than the pale yellow essential oil obtained through the hydrodistillation. There were substantial amounts of monoterpenes, monoterpene alcohols, sesquiterpenes, and sesquiterpene alcohols in both essential oils obtained. The SFME derived essential oil had 62 compounds as against the 52 derived through hydrodistillation. The SFME derived essential oil can therefore be suggested to be of better quality than of the hydrodistillation method. The compounds obtained in the essential oils have high pharmaceutical and cosmetic values, and as observed in this study, their quantity is dependent on method of extraction.


2018 ◽  
Vol 67 ◽  
pp. 03002
Author(s):  
Angelina ◽  
Mauhibah Yumna ◽  
Abdullah ◽  
Rita Arbianti ◽  
Tania Surya Utami ◽  
...  

Green extraction process is a method which is used to obtain various plant extracts with minimum impact on the environment. Green extraction will reduce energy consumption, allow use of alternative solvents and renewable natural products, and ensure a safe and high quality extract. Ultrasound-assisted enzymatic extraction (UAEE) is one of green extraction method. UAEE is a mild, efficient and environmental friendly extraction method and it has been adopted for extracting various kinds of compounds. The use of enzyme will catalyze hydrolysis of the cytoderm and glycoproteins, therefore enhancing the release of bioactive substances by disrupting plant cells. The optimum extraction conditions with a maximum yield extract of 48.63% are as follows: the concentration of ethanol is 50% and the amount of added enzyme is 70 mg/g. Crude extract from keji beling leaves is tested using Gas Chromatography and Mass Spectrometry (GC-MS) to identify components that have anti-hypercholesterolemic activity, which are hexadecanoic acid, octadecanoic acid and demethyl squalene.


2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Jaime Usano-Alemany ◽  
Jesús Palá-Paúl ◽  
Manuel Santa-Cruz Rodríguez ◽  
David Herraiz-Peñalver

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.


2011 ◽  
Vol 117-119 ◽  
pp. 1022-1026 ◽  
Author(s):  
Li Min Yang ◽  
Ling Ling Han ◽  
Zhuo Yang

Factors affecting microwave-assisted extraction of garlic essential oil from garlic were investigated experimentally. Suitable conditions for such extraction process were studied by single factor approach to improve the product yield. The product yield under the resultant suitable conditions can reach to 0.478% based on raw garlic cloves. The product yield for microwave-assisted extraction method is as 2.5 times as that for conventional solvent extraction approach.


2021 ◽  
Vol 10 (2) ◽  
pp. 51-57
Author(s):  
Venitalitya A. S. Augustia ◽  
Naufal Charfadz ◽  
Rizki Akbar ◽  
Diana

Lemongrass, one type of source of essential oils, is widely cultivated in Indonesia. There are several methods for extracting the essential oils from lemongrasses, such as hydro-distillation, steam distillation, soxhlet extraction, extraction with supercritical fluids, ultrasonic extraction, and microwave-assisted hydro-distillation. In this study, microwave-assisted hydro-distillation was used as the extraction method. The purpose of this study was to determine the effect of extraction time (60 minutes, 75 minutes, and 90 minutes), lemongrass/solvent ratio (1:4 g/mL and 1:5 g/mL), and microwave power (500 watt and 600 watt) on quantity and quality of lemongrass essential oil. The essential oils obtained were analyzed in the form of calculation of the essential oil density, yield, and GC-MS analysis. The results of the analysis showed that the density of the extracted lemongrass oil ranged from 0.880 g/mL – 0.920 g/mL at a temperature of 30 oC, with the highest yield ranging from 0.0044% – 0.0046% in samples with a material/solvent ratio of 1:5 g/mL. The components found in lemongrass oil were Z-citral, geranyl acetate, geraniol.


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