scholarly journals EKSTRAKSI MINYAK ATSIRI BUNGA MELATI: PENGARUH RASIO MASSA BUNGA MELATI DENGAN VOLUME PELARUT N-HEKSANA, WAKTU EKSTRAKSI, DAN TEMPERATUR EKSTRAKSI

2019 ◽  
Vol 8 (1) ◽  
pp. 42-47
Author(s):  
Michael Dillo Rizki Ginting ◽  
Febrina Iskandar ◽  
Iriany ◽  
Okta Bani
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Acid Number ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Index Analysis ◽  
Yellow Color ◽  
Original Plant ◽  
Solvent Lead ◽  
Jasminum Sambac

Jasmine flower (Jasminum sambac) contains essential oil compounds. Jasmine flower essential oil is a high-quality essential oil. Essential oils are volatile oils that have aroma similar to the original plant. Jasmine flower essential oil is sought due to its calming and anti-depression nature. In this study, the effect of extraction temperature, extraction time and solvent to jasmine flower ratio on jasmine oil was studied. The extraction was carried out at 30oC, 35oC, and 40oC for 2 hours, 3 hours, 4 hours, and 5 hours by using n-hexane. The ratio of jasmine flower to n-hexanes were 1:3; 1:4; and 1:5 (w/v). Resulting jasmine oil was analyzed by GC-MS, and its quality was assessed according to SNI 06-2385-2006 which include colour test, refractive index analysis, acid number analysis, and ester number analysis. This experiment showed that increasing of extraction time, extraction temperature, and volume of solvent lead to increase of absolute yield of jasmine essential oil. The highest jasmine oil yield obtained at 11.69 %. The jasmine oil contained was 47.14 % benzyl acetate and had yellow color. Its refractive index, acid number, and ester number were 1.478, 20.92 mg KOH/gram jasmine essential oil, and 150.27 mg KOH/gram jasmine essential oil respectively.

scholarly journals EKSTRAKSI MINYAK ATSIRI BUNGA MELATI DENGAN MENGGUNAKAN PELARUT ISOPROPIL ETER : PENGARUH WAKTU, TEMPERATUR, DAN RASIO MASSA BUNGA MELATI DENGAN VOLUME PELARUT

2019 ◽  
Vol 8 (1) ◽  
pp. 1-5
Author(s):  
Febrina Iskandar ◽  
Michael Dillo Rizki Ginting ◽  
Iriany ◽  
Okta Bani
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Oil Extraction ◽  
Acid Number ◽  
Extraction Time ◽  
Isopropyl Ether ◽  
Extraction Temperature ◽  
Index Analysis ◽  
Yellow Color ◽  
Solvent Lead

Jasmine flower is one of the high value commodities. One of the applications of  jasmine flower  is jasmine essential oil. Jasmine essential oil is often used to produce high quality parfume. Extraction is one of the methods for extracting jasmine essential oil, usually by the help of solvent. In this study, the effect of extraction time, extraction temperature, and solvent to jasmine flower ratio on jasmine oil extraction was studied. The extraction was carried out at 30oC, 35oC, and 40oC for 2 hours, 3 hours, 4 hours, and 5 hours by using isopropyl ether. The ratio of jasmine flower to isopropyl ether were 1:3; 1:4; and 1:5 (m/v). The resulting jasmine oil was analyzed by GC-MS and its quality was assessed according to SNI 06-2385-2006 which include colour test, refractive index analysis, acid number analysis, and ester number analysis. This experiment showed that increasing of extraction time, extraction temperature, and volume of solvent lead to increase of absolute yield of jasmine essential oil. The highest jasmine oil yield was obtained at 10.63 %. The jasmine oil contained 45.34% benzyl acetate and had yellow color. Its refractive index, acid number, and ester number were 1.485, 26.228 mg KOH/gram jasmine essential oil, and 159.885 mg KOH/gram jasmine essential oil.

scholarly journals Efficacy of Microwave Heating Parameters on Physical Properties of Extracted Oil from Turmeric (Curcuma longa L.)

2020 ◽  
pp. 126-136
Author(s):  
Sachin . ◽  
Vijay Kumar Singh ◽  
M. K. Garg ◽  
Amarjit Kalra ◽  
Sushant Bhardwaj ◽  
...  
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Specific Gravity ◽  
Physical Properties ◽  
Oil Recovery ◽  
Microwave Power ◽  
Curcuma Longa ◽  
Fixed Ratio ◽  
Extraction Time ◽  
Oil Yield

In the study, essential oil extraction from turmeric was carried out using modified microwave distillation system and rotary evaporator unit. In present study, effect of input parameters i.e. microwave power (200, 250, 300, 350 and 400 W) and extraction time (10, 15, 20, 25 and 30 min.) on physical properties (oil yield, specific gravity, refractive index and colour) of essential oil were studied. Fixed ratio samples (1:1:1) i.e. turmeric powder, solvent and distilled water was used during the experiment conducted. Essential oil yield using hexane varied from 1.895% to 4.973% while from 0.180% to 1.226% using petroleum ether solvents. Quality parameters varied i.e. specific gravity from 0.910 to 0.923, refractive index from1.478 to 1.506, colour values for oil ranges L* from 70.60 to 98.60, a* from –25.60 to 15.1 and b* from 82.1 to 88.5. Optimum values of process parameters for maximum oil recovery (4.973%) and best quality of oil (specific gravity: 0.915; refractive index: 1.485) was found at microwave power 300 W and extraction time 20 min.

scholarly journals EFEK AROMATERAPI MINYAK ATSIRI MAWAR (Rosa damascena MILL.) DAN KULIT JERUK LIMAU (Citrus amblycarpa) TERHADAP JUMLAH MIKROBA UDARA RUANGAN BERPENDINGIN

2020 ◽  
Vol 19 (2) ◽  
Author(s):  
Oom Komala ◽  
Novi Fajar Utami ◽  
Siti Mariyam Rosdiana
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Optical Rotation ◽  
Acid Number ◽  
National Standard ◽  
Plate Count ◽  
Rosa Damascena ◽  
Specific Level ◽  
Energy Material ◽  
Plate Count Method

Energy, material, and or other components were entered to the air by activities of human could cause air quality down to a specific level that could affect human health. The bacteria in the human oral cavity such as Staphylococcus sp. were found in the air during common activities such as coughing, sneezing, and speaking. The research aimed to assess the influence of the combination of oils essential of Rosa damacena and leather oil of Citrus amblycarpa against a decline in the total of microbes on air-conditioned rooms. The method of the research  was used the evaporation of aromatherapy and plate count method. The results were showed that P3 with the concentration of oils essential of R. damacena 2% and leather oil of C. amblycarpa 5% most effective could decrease the total of microbes with an average of 72.5%. Organoleptic, relative density, refractive index, solubility in 90% ethanol, and acid number analysis of Rosa damacena and Citrus amblycarpa leather essential oils met the Indonesian National Standard requirements except for the acid number of leatherlime essential oil and the optical rotation of rose essential oil. It is concluded that the combination of oils essential R. damacena and leather oil of C. amblycarpa  could reduce the total of microbes on air-conditioned rooms.

scholarly journals Pengaruh Waktu Ekstraksi Daun Jeruk Nipis (Citrus aurantifolia) Menggunakan Pelarut n-Heksana terhadap Rendemen Minyak

2019 ◽  
Vol 7 (2) ◽  
pp. 163
Author(s):  
Nasrun Ibrahim ◽  
Jalaluddin Jalaluddin ◽  
Nurul Rahmah
Keyword(s):  
Refractive Index ◽  
Solvent Extraction ◽  
Essential Oil ◽  
Essential Oils ◽  
Extraction Method ◽  
Extraction Time ◽  
Sample Weight ◽  
Solvent Extraction Method ◽  
Leaf Oil ◽  
Leaf Essential Oil

Indonesia has natural resources that are rich in essential oils. One potential natural resource is lime which can be used as flavor in food. The extraction of lime leaf essential oil using volatile solvent extraction method. The aim of the study was to determine the effect of extraction time on yield, refractive index, and density of essential oils produced. Extraction of lime leaf oil with n-hexane solvent using soxhlet extractors. The old lime leaves that have been cleaned, cut into small pieces and wrapped in filter paper and put in soxhlet. 200 ml n-hexane solvent is inserted in an extractor round bottom flask equipped with coolant. Extraction is carried out at a certain temperature and time depending on the type of solvent used, until the solvent color is returned as before. Then the filtrate was distilled to be purified, so that lime leaf oil was obtained separately from the solvent. Essential oils are then tested for yield, refractive index, and density contained in essential oils. The results of the study were extraction of lime leaves with n-hexane solvent, the highest yield obtained at a sample weightof 200 grams with an extraction time of 180 minutes which was 3.11%. The highest oil refractive index was also obtained at a sample weight of 200 grams with an extraction time of 180 minutes which was 1.47, while the density of essential oil from lime leaves was 0.79gr/ml.Keywords: essential oil, lime leaf, extraction, n-heksana

scholarly journals Optimization of Essential Oil Extraction Process of White Pepper (Piper nigrum L.) Harvested in Phu Quoc Island, Kien Giang Province, Vietnam

2020 ◽  
Vol 32 (11) ◽  
pp. 2707-2712
Author(s):  
Thien Hien Tran ◽  
Thi Cam Quyen Ngo ◽  
Hoang Duy Ngo ◽  
Nguyen Huu Thuan Anh ◽  
Ton Nu Thuy An ◽  
...  
Keyword(s):  
Essential Oil ◽  
Extraction Process ◽  
Black Pepper ◽  
Oil Extraction ◽  
Extraction Time ◽  
Gas Chromatography Mass Spectrometry ◽  
Piper Nigrum ◽  
Extraction Temperature ◽  
Green Pepper ◽  
White Pepper

Vietnam is a leading producer and exporter of products harvested from plants of the family Piperaceae such as green pepper, black pepper, red pepper and white pepper. In this study, an attempt is made to examine the essential oil extraction process with the material of white pepper grown and harvested in Phu Quoc island, Vietnam. To maximize essential oil production, three factors consisting the ratio of materials and solvents, extraction time and extraction temperature were selected and optimized. The surface response methodology optimization resulted the highest yield of 3.6%, achieved at the ratio of material and water ratio of 1:20 g/g, extraction time of 96 min and at 130 ºC. A high F values, low P values (< 0.0001), the determination coefficient (R2 = 0.9993) and a non-significant lack of fit suggested a strong correlation between actual and predicted values of the responses. The essential oil obtained was determined for chemical composition by gas chromatography-mass spectrometry (GC-MS) method. The GC-MS results showed that major constituents existing in the oil sample were limonene, 3-carene, sabinene, β-pinene, α-pinene and α-phellandrene, accounting for 27.059, 23.345, 17.903, 9.996, 5.167 and 4.588%, respectively.

scholarly journals AKTIVITAS ANTIMIKROBA MINYAK ESENSIAL JAHE MERAH (Zingiber officinale var. Rubrum) DAN LENGKUAS MERAH (Alpinia purpurata K. Schum) TERHADAP BAKTERI PATOGEN DAN PERUSAK PANGAN

2015 ◽  
Vol 35 (01) ◽  
pp. 43 ◽  
Author(s):  
Tita Rialita ◽  
Winiati Pudji Rahayu ◽  
Lilis Nuraida ◽  
Budi Nurtama
Keyword(s):  
Antimicrobial Activity ◽  
Refractive Index ◽  
Essential Oil ◽  
Essential Oils ◽  
Optical Rotation ◽  
Acid Number ◽  
Food Spoilage ◽  
E Coli ◽  
Spoilage Bacteria ◽  
Red Ginger

The aims of this study was to determine the characteristics, composition and antimicrobial activity of essential oils of local Indonesian red ginger and red galangal against four pathogenic and food spoilage bacteria, which were B.cereus ATCC 10876, E. coli ATCC 25922, S. typhimuriumATCC 14028, and P. aeruginosa ATCC 27853. Analysis of physicochemical characteristics was carried outin accordance with ISO7355:1985. The chemical compositionwas analyzed using aGC-MS. The antimicrobial activity was determined by disc diffusion method and broth microdillution method was used for determine MIC and MBC values. Red ginger essential oil characteristic was brownish yellow, specific gravity 0.883, refractive index 1.480, optical rotation -8.45o, clear soluble (1:1) in 90 % alcohol, 2.06 acid number and 42.45 ester number. Redgalangal essential oil had a characteristic bright yellow color, specific gravity 0.895, refractive index 1.496, optical rotation -9.15o, clear soluble (1:1) in 90 % alcohol, 1.95 acid number and 140.15 ester number. The major component of red ginger essential oils were trimethyl-heptadien-ol, ar-curcumene, camphene, carbaldehyde, -sesquiphellandrene, and nerol; while the major component of red galangal essential oil were 1.8-cineole, chavicol, 9-desoxo-9-xi-hydroxy-3-pentaacetate-3,5,7,8,9,12-Ingol,- caryophyllene and -selinene. The essential oil of red ginger and red galangal hadmoderate antibacterial activity against pathogenic and food spoilage bacteria with the average inhibition zone 7.17-10.33 and 7.25-11.17mm.Red ginger essential oils could inhibit the growth of tested bacteria with MIC values of 2.65-3.97 mg/mL and MBC value of 3.10-5.29 mg/mL, while the red galangal essential oil could inhibit the growth of tested bacteria with MIC values of 1.79-4.03 mg mL and MBC values of 1.79-4.92 mg/mL. Based on the MIC and MBC values,all tested bacteriasensitivity to essential oils of red ginger and galangal red decline in a row B.cereus > E. coli > S. typhimurium> P. aeruginosa. Sensitivity of Gram positive and Gram negative bacteria to both essential oils demonstrate the potential of the oils to be used as a natural preservative in the food industry.Keywords: Antimicrobial, essential oil, red ginger, red galangal ABSTRAKPenelitian ini bertujuan untuk mengetahui karakteristik, komposisi dan aktivitas antimikroba minyak esensial jahe merah dan lengkuas merah lokal Indonesia terhadap empat spesies bakteri patogen dan perusak pangan, yaitu B.cereus ATCC 10876, E.coli ATCC 25922, S. typhimurium ATCC 14028, dan P. aeruginosa ATCC 27853. Analisis karakteristikfisika-kimia dilakukan sesuai standar ISO 7355:1985. Komposisi kimia dianalisis menggunakan alat GC-MS. Pengujian aktivitas antimikroba dilakukan dengan metode difusi cakram untuk menentukan zona hambat, sertabroth microdillution untuk menentukan nilai Minimum Inhibitory Concentration (MIC) dan Minimum Bactericidal Concentration (MBC).Karakteristik minyak esensial jahe merah yang dihasilkan yaitu kuning kecoklatan, berat jenis 0,883, indeks bias 1,480, putaran optik -8.45, larut jernih (1:1) dalam alkohol 90%, bilangan asam 2,06, dan bilangan ester 42,45. Minyak esensial lengkuas merah memiliki karakteristik warna kuning terang, berat jenis 0,895, indeks bias 1,496, putaran optik-9.15, larut jernih (1:1) dalam alkohol 90%, bilangan asam 1,95 dan bilangan ester 140,15. Komponen mayor minyak esensial jahe merah terdiri dari trimethyl-heptadien-ol, ar-curcumene, camphene, carbaldehyde, -sesquiphellandrene, dan nerol; sedangkan komponen mayor minyak esensial lengkuas merah terdiri dari 1.8-cineole, chavicol,9-desoxo9-xi-hydroxy-3,5,7,8,9,12-pentaacetat-ingol, -caryophyllenedan -selinene. Minyak esensial jahe merah dan lengkuas merah memiliki aktivitas antibakteri yang bersifat moderat terhadap bakteri patogen dan perusak pangan, dengan kisaran zona hambat rata-rata 7,17-10,33 mm dan 7,25-11,17 mm. Minyak esensial jahe merah dapat menghambatpertumbuhan bakteri uji pada nilai MIC 2,65-3,97 mg/mL dan nilai MBC 3,10-5,29 mg/mL, sedangkan minyak esensial lengkuas merah dapat menghambat bakteri uji dengan nilai MIC 1,79-4,03 mg/mL dan nilai MBC 1,79-4,92 mg/mL. Berdasarkan nilai MIC dan MBC, sensitivitas bakteri uji terhadap minyak esensial jahe merah dan lengkuas merah menurun berturut-turut dari B. cereus > E. coli > S. typhimurium > P. aeruginosa. Sensitivitas bakteri Gram positif dan Gram negatif terhadap kedua minyak esensial ini menunjukkan potensi minyak esensial jahe merah dan lengkuas merah untuk digunakan sebagai pengawet alami di industri pangan.Kata kunci: Antimikroba, jahe merah, lengkuas merah, minyak esensial

scholarly journals Pengaruh Daya dan Waktu Terhadap Yield Hasil Ekstraksi Minyak Daun Spearmint Menggunakan Metode Microwave Assisted Extraction

2020 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Fitria Yulistiani ◽  
Rizka Khairiyyah Azzahra ◽  
Yulinda Alhay Nurhafshah
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Refractive Index ◽  
Essential Oil ◽  
Power Level ◽  
Extraction Time ◽  
Gas Chromatography Mass Spectrometry ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction

Salah satu jenis tanaman mint yang memiliki kandungan minyak atsiri adalah jenis spearmint dengan kandungan carvone sebanyak 60 – 70%. Kandungan tersebut menyebabkan minyak atsiri daun mint memiliki sifat antioksidan, antifungal, dan antibakteri. Proses pengambilan minyak atsiri dengan metode tradisional seperti distilasi uap membutuhkan waktu dan energi yang lebih besar dibandingkan dengan metode Microwave Assisted Extraction (MAE). Penelitian ini bertujuan untuk mengetahui pengaruh daya microwave (100, 180, dan 300 Watt) dan waktu ekstraksi (5, 10, 15 dan 20 menit) menggunakan metode MAE terhadap yield minyak daun mint. Selain itu, dilakukan karakterisasi sifat fisik yang ditentukan dari warna, indeks bias, densitas, dan komponen penyusun minyak daun mint. Hasil penelitian menunjukkan bahwa daya dan waktu mempengaruhi yield yang dihasilkan. Variasi daya dan waktu terbaik dari hasil penelitian (daya 180 Watt dan waktu 15 menit) menghasilkan yield sebesar 5,17%. Minyak mint yang dihasilkan memiliki warna kuning muda, indeks bias 1,362, dan densitas sebesar 0,8758 gram/mL. Hasil analisis dengan Gas Chromatography – Mass Spectrometry (GC-MS) menunjukkan bahwa komponen terbesar penyusun produk minyak mint hasil penelitian ini adalah carvone sebanyak 71%.Spearmint is one type of mint that contains essential oil with carvone (60-70%) as its main component. That component causes mint’s essential oil has antioxidant, antifungal and antibacteria properties. The traditional method to produce essential oil like steam distillation has long and energy consuming processes. The aims of this research were to investigate the influence of microwave power level (100, 180 and 300 Watt) and the extraction time (5, 10, 15 and 20 minutes) used Microwave Assisted Extraction to mint oil’s yield. Furthermore, characterization determined by oil’s colour, refractive index and density. The analysis of chemical component of mint oil was done using Gas Chromatography – Mass Spectrometry (GC-MS). The power level of microwave and extraction time influence to mint oil’s yield is proven in this research. The highest yield (5.17%) is generated at best variation of power and extraction time from the research are at 180 Watt and 15 minutes extraction time. The colour of mint oil is light yellow, refractive index value is 1.362 and density is 0.8758 gram/mL. The result of GC-MS showed that the major component of mint oil is 71% carvone.

Optimization of Crude Extracts from Areca catechu L. Flower Using Response Surface Methodology

2014 ◽  
Vol 962-965 ◽  
pp. 1271-1274 ◽  
Author(s):  
Liang Li ◽  
Jian Bang Ji ◽  
Xiao Ning Kang ◽  
Ping Dai ◽  
Chuan Xian Fu
Keyword(s):  
Essential Oil ◽  
Response Surface ◽  
Polynomial Equation ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Crude Extracts ◽  
Areca Catechu ◽  
Single Factor Analysis ◽  
Extraction Agent

Based on the single factor analysis, the effect of extraction time, extraction temperature, and solid to liquid ratio on enhancing crude extracts of essential oil yield from Areca catechu L. flowers was evaluated by response surface analysis (RSA). A three-variable, three-level Box-Behnken experimental design (BBD) was applied and the interactions of each factor on the essential oil crude extracts yield were also investigated. The test data were fitted to a second-order polynomial equation using multiple regression analysis and also analyzed using the appropriate statistical methods. The optimal conditions were at 90 min extraction time, 60°C extraction temperature, and 15:1 solid to liquid ratio using petroleum ether with a boiling range of 60~90°C as the extraction agent. Under such conditions, the essential oil crude extracts yield is 2.52% after three runs.

scholarly journals Ekstraksi Minyak Atsiri Pandan Wangi (Pandanus amaryllifolius Roxb.) dengan Lama Waktu Penyulingan yang Berbeda

2020 ◽  
Vol 25 (4) ◽  
pp. 653-656
Author(s):  
Maya Damayanti ◽  
Sarifah Nurjanah ◽  
Anas Bunyamin ◽  
Totok Pujianto
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Specific Gravity ◽  
Steam Distillation ◽  
Descriptive Analysis ◽  
Quality Parameters ◽  
Acid Number ◽  
Added Value ◽  
Distillation Method ◽  
Pandanus Amaryllifolius

The leaves of pandan wangi (Pandanus amaryllifolius Roxb.) are known as food flavor and can be extracted to produce essential oil.  Extraction of its essential oil is usually conducted by distillation method that would give added value for this plant. This study aimed to study the effect of different durations of distillation process on the essential oils yield and quality of pandanus using water and steam distillation method. The method used in this research was experimental method with descriptive analysis. This research used five variants duration of distillation, which was repeated two times. The duration of distillation consisted of 2 hours, 4 hours, 6 hours, 8 hours, and 10 hours. The parameters observed to determine the best treatment consisted of the amount of yield produced and the quality parameters including specific gravity, refractive index, acid number, solubility in ethanol 90%, and ester number. Based on the results of the research conducted, distillation to produce the best yield is the duration of 8 hours with a yield value of 0.55%, while distillation to produce the best quality is the duration of 6 hours with a specific gravity of 1.0563 g/mL, refractive index 1.3473, the acid number was 3.274 mg KOH/g, solubility in ethanol 90% (1:1), and ester number of 96.06 mL HCl/g. Keywords: essential oil, pandan wangi, water and steam distillation

scholarly journals Quality Assessment of the Essential Oil from Eucalyptus globulus Labill of Blida (Algeria) Origin

2014 ◽  
Vol 36 ◽  
pp. 303-315 ◽  
Author(s):  
Mohamed Nadjib Boukhatem ◽  
Mohamed Amine Ferhat ◽  
Abdelkrim Kameli ◽  
Fairouz Saidi ◽  
Kerkadi Walid ◽  
...  
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Specific Gravity ◽  
Eucalyptus Globulus ◽  
Optical Rotation ◽  
Chemical Constituents ◽  
Chemical Properties ◽  
Acid Number ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components

Despite the reputation earned by aromatic and medicinal plants of Algeria, the chemical constituents of Eucalyptus globulus essential oil (EGEO) of Blida origin has not previously been investigated. Thus, the present study has been conducted for the determination of chemical constituents and different physico-chemical properties of the EGEO. Chemical composition of the EGEO, grown in Algeria, was analysed by Gas Chromatography-Mass Spectrometry. The chemical components were identified on the basis of Retention Time and comparing with mass spectral database of standard compounds. Relative amounts of detected compounds were calculated on the basis of GC peak areas. Fresh leaves of E. globulus on steam distillation yielded 0.96 % (v/w) of essential oil whereas the analysis resulted in the identification of a total of 11 constituents, 1.8 cineole (85.8 %), α-pinene (7.2 %), and β-myrcene (1.5 %) being the main components. Other notable compounds identified in the oil were β-pinene, limonene, α-phellandrene, γ-terpinene, linalool, pinocarveol, terpinen-4-ol, and α-terpineol. The physical properties such as specific gravity, refractive index and optical rotation and the chemical properties such as saponification value, acid number and iodine number of the EGEO were examined. The oil extracted has been analyzed to have 1.4602 - 1.4623 refractive index value, 0.918 - 0.919 specific gravity (sp.gr.), +9 - +10 optical rotation that satisfy the standards stipulated by European Pharmacopeia. All the physical and chemical parameters were in the range indicated by the ISO standards. Our findings will help to access the quality of the Eucalyptus oil which is important in the production of high value essential oils that will help to improve the economic condition of the community as well as the nation.

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