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Okta Bani
Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara
Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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EKSTRAKSI MINYAK ATSIRI BUNGA MELATI DENGAN MENGGUNAKAN PELARUT ISOPROPIL ETER : PENGARUH WAKTU, TEMPERATUR, DAN RASIO MASSA BUNGA MELATI DENGAN VOLUME PELARUT Febrina Iskandar; Michael Dillo Rizki Ginting; Iriany; Okta Bani
Jurnal Teknik Kimia USU Vol. 8 No. 1 (2019): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.773 KB) | DOI: 10.32734/jtk.v8i1.1599

Abstract

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.
EKSTRAKSI MINYAK ATSIRI BUNGA MELATI: PENGARUH RASIO MASSA BUNGA MELATI DENGAN VOLUME PELARUT N-HEKSANA, WAKTU EKSTRAKSI, DAN TEMPERATUR EKSTRAKSI Michael Dillo Rizki Ginting; Febrina Iskandar; Iriany; Okta Bani
Jurnal Teknik Kimia USU Vol. 8 No. 1 (2019): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.185 KB) | DOI: 10.32734/jtk.v8i1.1605

Abstract

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.
BIOBRIQUETTE PRODUCTION FROM PALM FRONDS AND SHELLS: EFFECT OF MATERIAL COMPOSITION AND PARTICLE SIZE Okta Bani; Iriany; Taslim; Cici Novita Sari; Cindy Carnella
Jurnal Teknik Kimia USU Vol. 7 No. 1 (2018): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.959 KB) | DOI: 10.32734/jtk.v7i1.1632

Abstract

Briquettes are solid fuels from organic materials with high calorific values ​​and burn duration. The composition and particle size of the raw material may affect briquette quality. This study aimed to evaluate the effect of composition and particle size on calorific value and characteristics of the resulting briquettes. In this study, briquettes were made using palm oil fronds and shells at mass ratio of 1:2, 1:4, 1:6, 1:8 and particle size of not-dertemined, 50, 70, and 100 mesh. First, raw material was carbonized at 450°C for 30 minutes then added to 20%wt. starch glue and waste oil (1:1 ratio). Resulting briquettes were analyzed for its water content, ash content, density, volatile matter content, fixed carbon content, combustion rate, calorific value, and compressive strength. Satisfying results were obtained for briquettes with a front to shell ratio of 1:8, and a particle size of 100 mesh. At this condition, the resulting briquettes have water content of 5.5%; ash content of 2.54%; density of 0.51 g/cm3; 19.58% vapor content; fixed carbon content of 72.38%; combustion rate of 0.2 g/min (3.4×10-3 g/sec); calorific value of 15.3 kcal/g; and compressive strength of 0.06 N/mm2. These results have complied with the Indonesian National Standard (SNI), Japanese, American, and English standards, except for briquette compressive strength, which have not met the industrial standard.
Co-Authors Cici Novita Sari Cindy Carnella Febrina Iskandar Iriany Michael Dillo Rizki Ginting Taslim